Cumulus Linux 5.12 Release Notes

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5.12.1 Release Notes

Open Issues in 5.12.1

Issue ID Description Affects Fixed
4329931
In previous releases, Cumulus Linux incorrectly allowed SyncE and PPS In features to be enabled at the same time. Upgrading systems with both features configured using NVUE to 5.12.0 or higher results in a failure to apply the startup configuration as part of the first boot of the upgraded version. To work around the issue, unset one of the features before you upgrade. 5.12.0-5.12.1
4318464
When connecting two NVIDIA devices using DAC in Auto-Neg mode with 100GbE R1 (one lane) port speed, the link will go down. To avoid this, make sure to use firmware version xx.2014.3xxx and above on both sides. 5.12.0-5.12.1
4309876
When you configure an invalid switch port (swp), NVUE adds the invalid configuration instead of rejecting it. The invalid interface in the configuration does not have any functional impact. 5.12.0-5.12.1
4309875
When you configure an invalid switch port (swp), NVUE adds the invalid configuration instead of rejecting it. The invalid interface in the configuration does not have any functional impact. 5.12.0-5.12.1
4291993
After upgrading Cumulus Linux with optimized (two partition) image upgrade the second time, the ssh and nginx services do not start. To work around this issue, before rebooting to upgrade, check if the cumulus-upgrade-on-shutdown service is active (exited) with the systemctl status cumulus-upgrade-on-shutdown command. If the command output shows inactive (dead)), run the following commands to ensure that a subsequent two partition upgrade correctly uses the cumulus-upgrade-on-shutdown service:
cumulus@switch:~$ sudo systemctl enable cumulus-upgrade-on-shutdown
cumulus@switch:~$ sudo systemctl start cumulus-upgrade-on-shutdown
5.12.0-5.12.1
4291970
When you enable NVUE pagination with the nv set system cli pagination state enabled command, even short outputs become paginated inside less even though they fit the terminal. If you want to see pagination only for CLI outputs larger than the terminal size, set nv set system cli pagination state to auto. 5.12.0-5.12.1
4287285
Due to unsupported EVPN BUM replication configuration (a mix of PIM and HER modes), a resource leak can occur. 5.11.0-5.12.1
4280299
The nv action fetch system packages key command fails if the key ID is an scp/ftp or URL path that requires a password to access the key. To work around this issue, use a URI that does not require password authentication for the key ID. 5.12.0-5.12.1
4277042
On the NVIDIA SN5600 switch, you see low power alarms immediately after a reboot. The alarms disappear after showing up initially. Certain modules typically show low power alarms on initialization. No action is needed. 5.12.0-5.12.1
4271311
The management interface on the NVIDIA SN2010 and SN2100 switch negotiates to 100 Mbps instead of 1 Gbps. 5.11.0-5.12.1
4271215
NVUE overwrites the MOTD file during NVUE configuration with no option to ignore it
5.11.0-5.12.1
4262480
NVUE fails to apply numbered BGP large community lists (community lists with multiple rules). To work around this issue, use named large community lists. 5.12.0-5.12.1
4259744
The nv config replace command fails with a 404 NOT FOUND error. To work around this issue, run the nv config detach command before trying another configuration change. 5.12.0-5.12.1
4257386
NVUE overwrites the MOTD file during NVUE configuration with no option to ignore it
5.11.0-5.12.1
4249096
Binary upgrade from Cumulus Linux 4.3.1 to 5.12.0 is not supported. To work around this issue, perform a binary upgrade from Cumulus Linux 4.3.1 to 5.9.0, then perform a binary upgrade from Cumulus Linux 5.9.0 to 5.12.0. 5.12.0-5.12.1
4214678
Changes to open telemetry configuration or export states restarts the telemetry service and resets all health metrics. 5.12.0-5.12.1
4210596
After a factory reset, TACACS does not work. To work around this issue, run the following commands one after the other:
cumulus@switch:~$ sudo pam-auth-update –enable tacplus –force
cumulus@switch:~$ sudo pam-auth-update –enable unix –force
5.12.0-5.12.1
4200952
Configuring the listening-address for the SNMP server fails for IP addresses associated with VRFs other than the management VRF. 5.11.0-5.12.1
4178578
An unexpected thermal reboot occurs due to an incorrect firmware status in the i2c driver. 5.10.0-5.12.1
4177067
When doing a package upgrade from CL5.9 or CL5.10 to CL5.11, the installation of nslcd might open an interactive dialog to configure nslcd.conf .
To avoid this interactive dialog, set the DEBIAN_FRONTEND environment variable to noninteractive. For example:
cumulus@switch:~$ sudo apt-get update
cumulus@switch:~$ sudo DEBIAN_FRONTEND=noninteractive apt-get -y -o “Dpkg::Options::=–force-confdef” -o “Dpkg::Options::=–force-confold” upgrade
5.11.0-5.12.1
4156409
When you enable the BGP PIC next hop group per source option:
  • In a 2-CLOS or 3-CLOS configuration when all links between a pair of devices (leaf and spine or spine and super spine) come up, there is traffic loss.
  • In a 3-CLOS topology when the remote spine reboots, there is traffic loss when the switch is restarting.
5.11.0-5.12.1
4154839
When you run certain SDK commands (such as sudo sx_api_port_counter_dump_all.py or sx_api_fdb_dump etc) first as the cumulus user, then with sudo, you see the following error:
PermissionError: Errno 13] Permission denied: ‘/tmp/python_err_log.txt’

To resolve this issue, run the rm -rf /tmp/python_err_log.txt command.
5.11.0-5.12.1
4142857
The switch drops PTP packets received with extra ethernet padding and you see syslog [ptp4l.ERR] messages. 5.10.0-5.12.1
4139511
When you generate the cl-support file on the Spectrum-4 switch, the following messages appear on the serial console. The issue is harmless.
[ 1903.595131] mlxsw_minimal 2-0048: Could not acquire lock
[ 1903.601089] mlxsw_minimal 2-0048: Reg cmd access failed (reg_id=900a(mtmp),type=query)
[ 1903.609961] hwmon hwmon28: Failed to query module temperature thresholds
[ 1903.846724] mlxsw_minimal 2-0048: Could not acquire lock
[ 1903.852689] mlxsw_minimal 2-0048: Reg cmd access failed (reg_id=900a(mtmp),type=query)
[ 1903.861573] hwmon hwmon28: Failed to query module temperature
5.11.0-5.12.1
4134447
The journal logs might include the error message ERR kernel: [ 7.453789] usb usb2-port2: connect-debounce failed. This log message has no functionality impact and can be safely ignored. 5.11.0-5.12.1
4129757
If you include a comma in the BGP community list, extended community list, or large community list regex expression of a routing policy, you see error messages and FRR reload fails. Make sure the regex expression does not contain a comma.
For example, instead of ^65550:([0-9]{1,2}|[1-9][1-9]):.$, specify ^65550:([0-9]|[0-9][0-9]):.$ and instead of ^65550:([0-4]{1,2}|[7-9][8-9]):.$, specify ^65550:([0-4]|[0-4][0-4]|[7-9][8-9]):.$.
5.11.0-5.12.1
4128952
Cumulus Linux does not support LDAP over IPv6. 5.11.0-5.12.1
4124376
The SN3700C-S, SN5400, and SN5600 secure boot switch running Cumulus Linux 5.11.0 or later boots with shim 15.8 that adds entries to the SBAT revocations to prevent the switch from booting shim 15.7 or earlier (included in Cumulus Linux 5.10 and earlier).
To downgrade a secure boot switch from Cumulus Linux 5.11.0 or later, or to recover a downgraded switch that does not boot, follow the steps in Downgrade a Secure Boot Switch.
5.11.0-5.12.1
4118970
When running PTP, the performance for 100Gx2 and 400Gx8 can have a high offset in up to 1.5% of the sampling. 5.11.0-5.12.1
4105127
Any sFlow configuration changes that require an hsflowd restart are operational only after an initial delay of 60 seconds. 5.11.0-5.12.1
4100629
NVUE show command outputs show LLDP neighbor changes only after the LLDP update frequency multiplied by the hold time. 5.11.0-5.12.1
4082210
When you change the CPU resource limit with the nv set service control rsyslog resource-limit cpu command, the rsyslog agent does not start. To work around this issue, increase the CPU resource limit, then restart the service manually. 5.11.0-5.12.1
4077921
You cannot use package upgrade to upgrade from Cumulus Linux 5.9.2 to Cumulus Linux 5.10.1. You must install the Cumulus Linux 5.10.1 image. 5.10.1-5.12.1
4047798
Packet distribution based on ECMP hash is not working for VXLAN on top of rack switches where it is encapped. To work around this issue, enable lag hashing with gtp-teid to distribute VXLAN encapped packets across egress interfaces on the top of rack switches. 5.10.0-5.12.1
4030380
When you rollback interface configuration to the default setting with the nv unset interface command, NVUE removes the complete entry for the interface from the /etc/network/interface file, and puts the interface in admin down. As a result, you can’t configure FEC on the interface at the lower layers. 5.10.0-5.12.1
4019256
If you change the switch hostname, the histogram data producer service restarts. 5.10.0-5.12.1
4005422
When you upgrade Cumulus Linux 5.9.1 to Cumulus Linux 5.10 with package upgrade, the NTP service stops. To restart the NTP service, enable, then restart the service in the VRF in which it was running with the systemctl enable ntpsec@ and systemctl restart ntpsec@ commands. 5.10.0-5.12.1
3985682
On Spectrum-4 switches, multicast flows containing packets smaller than 512 bytes might not reach full line rate. Cumulus Linux supports 512 byte and larger multicast packets. 5.10.0-5.12.1
3966312
When connecting the SN5xxx switch to third party test equipment (such as IXIA) using copper cables at 100GbE, 200GbE, 400GbE, or 800GbE, links do not come up. 5.10.0-5.12.1
3915878
If you configure remote syslog export through a non-default VRF, you might see repeated error logs from the rsyslog process while the switch is booting:
rsyslogd: create UDP socket bound to device failed: No such device [v8.2302.0]rsyslogd: No UDP socket could successfully be initialized, some functionality may be disabled.  [v8.2302.0]

The logs occur because the rsyslog service starts before the networking service creates the configured VRF for syslog export. There is no functional impact with this issue.
5.9.0-5.12.1
3879809
What Just Happened (WJH) does not work on Spectrum-4 switches. 5.9.0-5.12.1
3879717
Running snmpwalk on the switch with the management IP address does not work. To work around this issue, use the localhost option (snmpwalk -v 2c -c public28 localhost 1.3.6.1.2.1.14) or create a control plane ACL whitelist rule. 5.10.0-5.12.1
3878394
When ZTP runs a script that contains wget, ZTP fails and you see a message similar to the following:
ZTP: ZTP DHCP: Unexpected error: ‘ascii’ codec can’t decode byte 0xe2 in position 181: ordinal not in range(128)ZTP: Script returned failure 

To work around this issue, use the -q option with wget.
5.9.0-5.12.1
3877516
When you connect two NVIDIA switches and configure 400G speed in force mode, links don’t come up.
To work around this issue, make sure auto-negotiation is always on when connecting NVIDIA to NVIDIA in PAM4.
5.9.0-5.12.1
3875373
When you run the nv config apply empty command, NVUE removes the cumulus user. If you are logged in as the cumulus user when you run the nv config apply empty command, the command fails. 5.9.0-5.12.1
3861745
On UEFI hardware (where the /sys/firmware/efi directory exists), using the update-grub program might generate a /boot/grub/grub.cfg that is incorrect for booting ONIE if the ONIE option is selected on the console while booting. To work around this issue, run mount LABEL=“EFI System” /boot/efi before using update-grub. 5.9.0-5.12.1
3855796
When configuring a Unicast Master Table for clients, the server addresses must be reachable and the route to the destination must exist. The unicast table can have one directly-connected port for a client. This restriction is only for directly connected ports and doesn’t apply to Unicast Servers on other devices or switches. 5.9.0-5.12.1
3847439
In rare cases on the Spectrum 1 switch where a dual connected host transmits all traffic flows to only one switch in a connected MLAG pair and the host changes behavior to hash all flows to the other MLAG switch, there might be traffic loss if the MAC FDB entry on the original switch ages out. 5.9.0-5.12.1
3835635
When adaptive routing is enabled, traffic for non adaptive routing enabled ports and non adaptive routing ECMPs might be routed over all ports in ECMP. Avoid using regular ECMPs with adaptive routing enabled on the switch. 5.9.0-5.12.1
3819945
When you connect an NVIDIA SN4410, SN4700, or SN5600 switch to any Spectrum 1, Spectrum-2, or Spectrum-3 peer switch (with four lanes) using a 4x breakout configuration and the default lanes per port setting, links do not come up. To work around this issue, provide the lanes per port configuration shown below:
cumulus@switch:~$ nv set interface  link breakout 4x lanes-per-port 1
5.9.0-5.12.1
3818545
The terminal monitoring software SecureCRT has a known issue when running on both Windows and Mac systems where it gets stuck when monitoring the serial port of the switch as Cumulus Linux boots up. When this occurs, the serial port stops as shown below and SecureCRT is unable to receive any more serial data from the switch (it is able to transmit).
Mounting dev-hugepages.mount - Huge Pages File System..
Mounting dev-mqueue.mount
5.9.0-5.12.1
3774274
When you manually configure the /etc/cumulus/datapath/qos/qos_features.conf file without applying the QoS configuration with NVUE, running the nv config apply empty command later does not clean up the QoS configuration. If the QoS configuration includes breakout ports, the nv config apply empty command fails due to a switchd reload trigger failure. To work around this issue, clean up the configuration manually in the /etc/cumulus/datapath/qos/qos_features.conf, then run the nv config apply empty command. 5.8.0-5.12.1
3773177
When you try to upgrade a switch from Cumulus Linux 5.5 or earlier to 5.8.0 or later with package upgrade, you see errors for expired GPG keys that prevent you from upgrading. To work around this issue, install the new keys with the following commands, then upgrade the switch.
cumulus@switch:~$ wget https://download.nvidia.com/cumulus/apt.cumulusnetworks.com/repo/pool/cumulus/c/cumulus-archive-keyring/cumulus-archive-keyring_4-cl5.6.0u5_all.deb
cumulus@switch:~$ sudo apt install ./cumulus-archive-keyring_4-cl5.6.0u5_all.deb
cumulus@switch:~$ sudo apt update
cumulus@switch:~$ sudo apt upgrade
4.0.0-4.4.5, 5.0.0-5.12.1
3771168
When you perform an ISSU upgrade on a Spectrum 1 switch, the switchd service might crash. 5.8.0-5.12.1
3677533
Due to resource constraints on the Spectrum 1 switch, staticd performance drops and takes longer to read static routes compared to the time BGP takes to complete a graceful restart and advertise routes and EOR to its helpers. As a result, static routes are advertised after the EOR is sent to graceful restart helpers, which delete the stale static routes and relearn them after receiving the EOR from the restarting node. Temporary traffic loss might occur. 5.7.0-5.12.1
3655681
When you disable, then enable STP auto-edge on a port, the port might not transition to the operational edge even though the port does not receive bpdus. To work around this issue, configure the port as an admin-edge port. 5.7.0-5.12.1
3637444
Applying an inbound control plane ACL on the eth0 management interface does not take effect. To work around this issue, apply the ACL on the mgmt interface; for example, nv set interface mgmt acl inbound control-plane. 5.7.0-5.12.1
3591918
The nv action disconnect system aaa user command does not clear all the open sessions. To work around this issue, run the command as many times as the number of sessions to clear all the sessions. 5.6.0-5.12.1
3587393
If you use the NVIDIA SN5600 (Spectrum-4) switch with Ixia test equipment, you might experience delayed link up due to intermittent link flaps.
To work around this issue when using copper cables:
  • Use Ixia IxOS version 9.37 with HF002156, or version 9.39 or later.
  • Use the DAC cable on ports 10 through 50.
  • Use NVIDIA cables with the recommended firmware revision.
  • Configure AN on the Cumulus Linux switch and AN/LT on Ixia.

To work around this issue when using fiber cables:
  • Configure 800g/Force.
  • Use the recommended NVIDIA optical adapters.
5.6.0-5.12.1
3556762
On rare occasions, SPT switchover might not happen cleanly in PIM resulting in some dropped packets. If you use PIM-SM to replicate EVPN BUM traffic, you might see a brief drop of multicast traffic before recovering due to normal PIM-SM traffic timeout. 5.5.0-5.12.1
3540510
400Gx8 ports only support traffic line rate with packets that are larger than 172 bytes. 5.6.0-5.12.1
3538321
In rare cases, an STP topology change on PTP over a VLAN can result in the switch losing the slave state and one of the ports might remain in an uncalibrated state. To work around this issue, toggle the port that is in the uncalibrated state up and down so that one of the ports is selected as the slave. 5.6.0-5.12.1
3497622
When you remove PSUs, then plug them back in, you might experience traffic loss and some ports might be in a down state. 5.6.0-5.12.1
3472163
On a switch with the Spectrum-4 ASIC, packets that are smaller than 256 bytes are not included in multicast flows. Multicast flows support packets that are 256 bytes or larger. 5.6.0-5.12.1
3444490
Migration from ONYX to Cumulus Linux is supported and tested with ONYX version 3.10.4302 GA only. 5.6.0-5.12.1
3442569
When trying to access the NVUE API, user accounts authenticated with a newly-configured external service, such as TACACS, RADIUS, or LDAP, receive a 401 forbidden error. To work around this issue, after enabling a new authentication service, make sure to restart both nginx.service and nvued.service to begin authenticating users against the new authentication service. 5.5.0-5.12.1
3430430
When you configure PTP on 50G ports, the offset correction might be higher, which can affect the time synchronization of the node. To work around this issue, configure PTP on 100G ports, or on 10G or 1G ports with PTP shaper enabled. 5.5.0-5.12.1
3424967
sudo for TACACS+ users with privilege level 15 does not work when reaching the TACACS+ server through the default VRF. To work around this issue, specify the interface name that the default VRF uses in the vrf= setting of the /etc/tacplus_servers file or run the NVUE nv set system aaa tacacs vrf command. If you don’t run either command, a TACACS+ user with privilege level 15 can run vrf task exec default sudo … to execute the sudo command. 5.0.0-5.12.1
3420056
The ADVA 5401 SFP module with hardware revision 5.01 does not come up at layer 1 when you use 10G QSA adaptors. To work around this issue, use 25G QSA adaptors. 4.4.0-4.4.5, 5.0.0-5.12.1
3362113
If you restore an NVUE startup.yaml file or run the nv config patch command after an upgrade that includes breakout ports with QoS configuration, the NVUE configuration fails to apply. Subsequent attempts to run nv config apply fail with a message similar to Invalid config [rev_id: 11] qos config is not supported on the following invalid interface: swp1s0. Supported on swp and bond interface types. To work around this issue, run nv unset on the configured QoS settings, then apply the breakout port configuration before you configure QoS. Alternatively, you can remove the QoS configuration from the yaml file and patch it separately after applying the breakout configuration. 5.4.0-5.12.1
3347538
When connecting NVIDIA-to-NVIDIA in PAM4, you must enable auto-negotiation. 5.4.0-5.12.1
3341214
If you use the NVUE REST API to configure a local user with a hashed password, the user cannot log in and the /etc/nvue.d/startup.yaml file shows the password as plain text. 5.4.0-5.12.1
3329518
When using TACACS+, if the /etc/nsswitch.conf file specifies passwd: files tacplus (files is listed before tacplus), a user that is present in both the local /etc/passwd file and the TACACS+ server cannot log into the switch. NVIDIA recommends that when using TACACS+, you list tacplus before files in /etc/nsswitch.conf. When using NVUE, ensure that tacacs has priority over local. 5.4.0-5.12.1
3327477
If you use su to change to a user specified through TACACS+, the user becomes the local tacacs0 thru tacacs15 user instead of the named user to run sudo commands. As a result, the named user password might not match the local tacacs0 thru tacacs15 user password. 3.7.0-3.7.16, 4.0.0-4.4.5, 5.0.0-5.12.1
3326659
If you have a large number of MAC addresses, they do not age out at the MAC ageing timeout value configured on the switch. It might take up to 30 seconds more for the MAC addresses to age out and be deleted from the hardware. To work around this issue, wait for the ageing timeout value plus 30 seconds. 5.4.0-5.12.1
3253218
Auto-negotiation isn’t supported on Spectrum-2 and Spectrum-3 switches using the 1G SFP-T module; FORCE 1G is configured instead. 5.4.0-5.12.1
3241567
When you apply switch configuration for the first time on a freshly booted switch and you run the nv config apply command after setting the hostname with nv set system hostname, you might see the error message Failed to start Hostname Service. To work around this issue, run the nv config apply command a second time. 5.3.0-5.12.1
3226506
The l1-show eth0 command does not show port information and is not supported in this release. 5.3.0-5.12.1
3225117
Occasionally, packet losses might occur on 25G ports when the link is raised without FEC. 5.4.0-5.12.1
3172504
When you connect the NVIDIA SN4600C switch to a Spectrum 1 or Spectrum-3 switch with a 40GbE passive copper cable (Part Number: MC2210126-005) on edge ports 1-4 and 61-64, there is an Effective BER of 1E-12 in PHY. 5.2.0-5.12.1
3147782
You cannot use NVUE to configure an SNMP view to include a subtree beginning with a period. For example:
cumulus@switch:~$ nv set service snmp-server viewname cumulusOnly included .1.3.6.1.4.1.40310Error: GET /nvue_v1/service/snmp-server/viewname/cumulusOnly/included?pointers=%5B%22%2Fparameters%22%2C+%22%2Fpatch%2FrequestBody%2Fcontent%2Fapplication~1json%2Fschema%22%2C+%22%2Fpatch%2Fparameters%22%2C+%22%2Fpatch%2Fresponses%2F200%2Flinks%22%5D responded with 404 NOT FOUND
To work around this issue, reference the OID without the preceding period ( . ) in the command.
5.3.0-5.12.1
3145869
On a Spectrum-3 switch, the PTP offset in 10GbE changes between +-27. The average offset is around 7. 5.2.0-5.12.1
3135952
PAM4 split cables (such as 2x100G, 4x100G, and 4x50G) do not work with a forced speed setting (when auto-negotiation is off) as the default speed enabled is for NRZ mode (such as 100G_4X). To work around this issue, set the appropriate lanes for forced speed (with auto-negotation off) with the ethtool -s swpX speed <port_speed> autoneg off lanes <no_of_lanes> command. For example:
cumulus@switch:~$ sudo ethtool -s swp1 speed 100000 autoneg off lanes 2
5.2.0-5.12.1
3115242
When you configure two VNIs in the same VLAN, ifupdown2 shows a vlan added to two or more VXLANS warning, which is only issued after the VNI is already added to the bridge. This leaves the new VNI in the PVID even if there is already an existing VNI configured in that PVID. 5.1.0-5.12.1
3103821
On the NVIDIA SN4700 switch, inserting and removing the PSU might cause loss of frames. 5.2.0-5.12.1
3084476
After you disable traffic shaping in the /etc/cumulus/datapath/qos/qos_features.conf file, the default QOS traffic shaping configuration does not restore. To work around this issue, restart switchd. 4.4.3, 5.0.0-5.12.1 4.4.4-4.4.5
3084027
Under a high load, you might see ingress drop counters increase. The drops are classified as HwIfInDiscards in ethtool and shown as ingress_general in hardware. 4.3.0-4.4.5, 5.0.0-5.12.1
3071652
On rare occasions, after you reboot or restart switchd on a Spectrum 1 switch, any 25G connections with Direct Attach Copper (DAC) cables that connect from the switch to a non-NVIDIA device might flap continuously. To work around this issue, bring the affected link administratively down for a few seconds on the non-NVIDIA device, then bring the link back up. 4.4.4-4.4.5, 5.1.0-5.12.1
3061656
When the CPU load is high during a warm boot, bonds with a slow LACP rate fail to forward layer 2 traffic for up to 60 seconds (depending on the duration of the CPU load) and static bonds fail to forward layer 2 traffic for up to 5 seconds. 5.1.0-5.12.1
2972540
With RADIUS enabled for user shell authentication, there might be a delay in local user authentication for non cumulus user accounts. 5.0.0-5.12.1
2964279
When a VNI flaps, an incorrect list of layer 2 VNIs are associated with a layer 3 VNI. The NCLU net show evpn vni detail command output shows duplicate layer 2 VNIs under a layer 3 VNI. 3.7.15, 4.4.2-4.4.5, 5.0.0-5.12.1 3.7.16
2951110
The net show time ntp servers command does not show any output with the management VRF. 3.7.15-3.7.16, 4.1.1-4.4.5, 5.0.0-5.12.1
2932083
CVE-2021-45944 CVE-2021-45949: Multiple security issues were discovered in Ghostscript, the GPL PostScript/PDF interpreter, which could result in denial of service and potentially the execution of arbitrary code if malformed document filesare processed
Vulnerable: <= 9.27~dfsg-2+deb10u4Fixed: 9.27~dfsg-2+deb10u5
5.0.0-5.12.1 4.4.3-4.4.5
2904450
When you run the ethtool -m or the l1-show command, the 400G interface optical values do not show. 4.4.0-4.4.5, 5.0.0-5.12.1
2891255
CVE-2021-39925: Buffer overflow in the Bluetooth SDP dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file.
Vulnerable: <= 2.6.20-0+deb10u1
Fixed: 2.6.20-0+deb10u2
4.0.0-4.4.1, 5.0.0-5.12.1 4.4.2-4.4.5
2890681
CVE-2021-42771: relative path traversal in Babel, a set of tools for internationalising Python applications, could result in the execution of arbitrary code
Vulnerable: 2.6.0+dfsg.1-1Fixed: 2.6.0+dfsg.1-1+deb10u1
4.0.0-4.4.1, 5.0.0-5.12.1 4.4.2-4.4.5
2885305
Certain Murata PSU attributes show intermittently in the sensors command output. To work around this issue, upgrade to the latest PSU firmware on Murata. 5.0.0-5.12.1
2867042
When connecting the NVIDIA SN4600 switch to another NVIDIA Spectrum switch, you must use auto-negotiation mode (not force mode); otherwise the switch might use the wrong Tx configuration. 5.0.0-5.12.1
2823307
Cumuls Linux does not support a bond with more than 64 ports. Any configuration with more than 64 ports in a bond changes all ports to down when you apply the configuration. 5.0.0-5.12.1
2736108
When you change the VRRP advertisement interval on the master, the master advertisement interval field in the show vrrp command output does not show the updated value. 4.4.0-4.4.5, 5.0.0-5.12.1
2684925
The NVUE nv show vrf default router bgp peer command produces a 404 not found error. 4.4.0-4.4.5, 5.0.0-5.12.1
2671652
In VXLAN routing environments, you might experience sub-optimal route convergence delays (longer than five seconds) when a prefix transitions to a new ECMP next-hop group. This condition might occur when a VTEP loses ECMP routes through all uplink peerings, then installs the routes through a different path, such as an MLAG peerlink. 4.4.0-4.4.5, 5.5.0-5.12.1

Fixed Issues in 5.12.1

Issue ID Description Affects
4298572
The Spectrum-4 switch reports a Modules DataPath FSM fault in logs when the link fails at polling. 5.10.1-5.12.0
4286489
Optimized (two partition) upgrade and rollback fails when you apply configuration by editing the /etc/nvue.d/startup.yaml file, then run nv config apply startup. To work around this issue, after activating optimized upgrade, but before rebooting, save a copy of the contents of /var/lib/nvue/ to some other location. Then, after activating rollback, but before rebooting, move /var/lib/nvue/ to some other location and copy the previously saved contents to /var/lib/nvue/. 5.12.0
4286417
When sending control packets which have in their TX base header system target port 259-1023 (above cap_max_system_ports and below cap_ports - which is used for LAG forwarding), a health event of a fatal cause will occur in the switch. 5.11.0-5.12.0

5.12.0 Release Notes

Open Issues in 5.12.0

Issue ID Description Affects Fixed
4329931
In previous releases, Cumulus Linux incorrectly allowed SyncE and PPS In features to be enabled at the same time. Upgrading systems with both features configured using NVUE to 5.12.0 or higher results in a failure to apply the startup configuration as part of the first boot of the upgraded version. To work around the issue, unset one of the features before you upgrade. 5.12.0-5.12.1
4318464
When connecting two NVIDIA devices using DAC in Auto-Neg mode with 100GbE R1 (one lane) port speed, the link will go down. To avoid this, make sure to use firmware version xx.2014.3xxx and above on both sides. 5.12.0-5.12.1
4309876
When you configure an invalid switch port (swp), NVUE adds the invalid configuration instead of rejecting it. The invalid interface in the configuration does not have any functional impact. 5.12.0-5.12.1
4309875
When you configure an invalid switch port (swp), NVUE adds the invalid configuration instead of rejecting it. The invalid interface in the configuration does not have any functional impact. 5.12.0-5.12.1
4298572
The Spectrum-4 switch reports a Modules DataPath FSM fault in logs when the link fails at polling. 5.10.1-5.12.0 5.12.1
4291993
After upgrading Cumulus Linux with optimized (two partition) image upgrade the second time, the ssh and nginx services do not start. To work around this issue, before rebooting to upgrade, check if the cumulus-upgrade-on-shutdown service is active (exited) with the systemctl status cumulus-upgrade-on-shutdown command. If the command output shows inactive (dead)), run the following commands to ensure that a subsequent two partition upgrade correctly uses the cumulus-upgrade-on-shutdown service:
cumulus@switch:~$ sudo systemctl enable cumulus-upgrade-on-shutdown
cumulus@switch:~$ sudo systemctl start cumulus-upgrade-on-shutdown
5.12.0-5.12.1
4291970
When you enable NVUE pagination with the nv set system cli pagination state enabled command, even short outputs become paginated inside less even though they fit the terminal. If you want to see pagination only for CLI outputs larger than the terminal size, set nv set system cli pagination state to auto. 5.12.0-5.12.1
4287285
Due to unsupported EVPN BUM replication configuration (a mix of PIM and HER modes), a resource leak can occur. 5.11.0-5.12.1
4286489
Optimized (two partition) upgrade and rollback fails when you apply configuration by editing the /etc/nvue.d/startup.yaml file, then run nv config apply startup. To work around this issue, after activating optimized upgrade, but before rebooting, save a copy of the contents of /var/lib/nvue/ to some other location. Then, after activating rollback, but before rebooting, move /var/lib/nvue/ to some other location and copy the previously saved contents to /var/lib/nvue/. 5.12.0 5.12.1
4286417
When sending control packets which have in their TX base header system target port 259-1023 (above cap_max_system_ports and below cap_ports - which is used for LAG forwarding), a health event of a fatal cause will occur in the switch. 5.11.0-5.12.0 5.12.1
4280299
The nv action fetch system packages key command fails if the key ID is an scp/ftp or URL path that requires a password to access the key. To work around this issue, use a URI that does not require password authentication for the key ID. 5.12.0-5.12.1
4277042
On the NVIDIA SN5600 switch, you see low power alarms immediately after a reboot. The alarms disappear after showing up initially. Certain modules typically show low power alarms on initialization. No action is needed. 5.12.0-5.12.1
4271311
The management interface on the NVIDIA SN2010 and SN2100 switch negotiates to 100 Mbps instead of 1 Gbps. 5.11.0-5.12.1
4271232
A Python version change removed the encoding argument parameter of the json loads function, which causes an exception. 5.11.0-5.12.1
4271215
NVUE overwrites the MOTD file during NVUE configuration with no option to ignore it
5.11.0-5.12.1
4271213
When IPv4 layer 3 switch ports and virtual interfaces flap, switchd might send an ICMP Reply message instead of an ARP request (although no ICMP request was sent). Multiple ICMP Replies might be sent to any of the neighbor IP addresses of that interface. 5.9.2-5.12.1
4262480
NVUE fails to apply numbered BGP large community lists (community lists with multiple rules). To work around this issue, use named large community lists. 5.12.0-5.12.1
4260011
If all of the neighbors returned in the nv show vrf router bgp neighbor command output have no address-family configuration, you see an internal error when the nested table in the output is being rendered. 5.10.0-5.12.1
4259744
The nv config replace command fails with a 404 NOT FOUND error. To work around this issue, run the nv config detach command before trying another configuration change. 5.12.0-5.12.1
4257386
NVUE overwrites the MOTD file during NVUE configuration with no option to ignore it
5.11.0-5.12.1
4249096
Binary upgrade from Cumulus Linux 4.3.1 to 5.12.0 is not supported. To work around this issue, perform a binary upgrade from Cumulus Linux 4.3.1 to 5.9.0, then perform a binary upgrade from Cumulus Linux 5.9.0 to 5.12.0. 5.12.0-5.12.1
4246859
The nv show service ntp command displays the peers that are discovered together with the configured NTP servers instead of displaying only the NTP configuration. As a result, the “applied” and “operational” columns have different values, which causes confusion. 5.11.0-5.12.1
4245852
NVUE Rest API calls that are authenticated with TACACS on the switch append unnecessary database entries to the /run/tacacs_clent_map file, which increases the file size. Over time, this increases the TACACS login authentication time, resulting in delayed login authentication.
To work around this issue, delete the tacacs_client_map file with the sudo rm rf /run/tacacs_client_map command.
5.11.0-5.12.1
4214678
Changes to open telemetry configuration or export states restarts the telemetry service and resets all health metrics. 5.12.0-5.12.1
4210596
After a factory reset, TACACS does not work. To work around this issue, run the following commands one after the other:
cumulus@switch:~$ sudo pam-auth-update –enable tacplus –force
cumulus@switch:~$ sudo pam-auth-update –enable unix –force
5.12.0-5.12.1
4200952
Configuring the listening-address for the SNMP server fails for IP addresses associated with VRFs other than the management VRF. 5.11.0-5.12.1
4178578
An unexpected thermal reboot occurs due to an incorrect firmware status in the i2c driver. 5.10.0-5.12.1
4177067
When doing a package upgrade from CL5.9 or CL5.10 to CL5.11, the installation of nslcd might open an interactive dialog to configure nslcd.conf .
To avoid this interactive dialog, set the DEBIAN_FRONTEND environment variable to noninteractive. For example:
cumulus@switch:~$ sudo apt-get update
cumulus@switch:~$ sudo DEBIAN_FRONTEND=noninteractive apt-get -y -o “Dpkg::Options::=–force-confdef” -o “Dpkg::Options::=–force-confold” upgrade
5.11.0-5.12.1
4173498
After network churn, the watchfrr process might restart FRR because zebra is unresponsive. 5.9.1-5.12.1
4156409
When you enable the BGP PIC next hop group per source option:
  • In a 2-CLOS or 3-CLOS configuration when all links between a pair of devices (leaf and spine or spine and super spine) come up, there is traffic loss.
  • In a 3-CLOS topology when the remote spine reboots, there is traffic loss when the switch is restarting.
5.11.0-5.12.1
4154839
When you run certain SDK commands (such as sudo sx_api_port_counter_dump_all.py or sx_api_fdb_dump etc) first as the cumulus user, then with sudo, you see the following error:
PermissionError: Errno 13] Permission denied: ‘/tmp/python_err_log.txt’

To resolve this issue, run the rm -rf /tmp/python_err_log.txt command.
5.11.0-5.12.1
4142857
The switch drops PTP packets received with extra ethernet padding and you see syslog [ptp4l.ERR] messages. 5.10.0-5.12.1
4139511
When you generate the cl-support file on the Spectrum-4 switch, the following messages appear on the serial console. The issue is harmless.
[ 1903.595131] mlxsw_minimal 2-0048: Could not acquire lock
[ 1903.601089] mlxsw_minimal 2-0048: Reg cmd access failed (reg_id=900a(mtmp),type=query)
[ 1903.609961] hwmon hwmon28: Failed to query module temperature thresholds
[ 1903.846724] mlxsw_minimal 2-0048: Could not acquire lock
[ 1903.852689] mlxsw_minimal 2-0048: Reg cmd access failed (reg_id=900a(mtmp),type=query)
[ 1903.861573] hwmon hwmon28: Failed to query module temperature
5.11.0-5.12.1
4134447
The journal logs might include the error message ERR kernel: [ 7.453789] usb usb2-port2: connect-debounce failed. This log message has no functionality impact and can be safely ignored. 5.11.0-5.12.1
4129757
If you include a comma in the BGP community list, extended community list, or large community list regex expression of a routing policy, you see error messages and FRR reload fails. Make sure the regex expression does not contain a comma.
For example, instead of ^65550:([0-9]{1,2}|[1-9][1-9]):.$, specify ^65550:([0-9]|[0-9][0-9]):.$ and instead of ^65550:([0-4]{1,2}|[7-9][8-9]):.$, specify ^65550:([0-4]|[0-4][0-4]|[7-9][8-9]):.$.
5.11.0-5.12.1
4128952
Cumulus Linux does not support LDAP over IPv6. 5.11.0-5.12.1
4124376
The SN3700C-S, SN5400, and SN5600 secure boot switch running Cumulus Linux 5.11.0 or later boots with shim 15.8 that adds entries to the SBAT revocations to prevent the switch from booting shim 15.7 or earlier (included in Cumulus Linux 5.10 and earlier).
To downgrade a secure boot switch from Cumulus Linux 5.11.0 or later, or to recover a downgraded switch that does not boot, follow the steps in Downgrade a Secure Boot Switch.
5.11.0-5.12.1
4118970
When running PTP, the performance for 100Gx2 and 400Gx8 can have a high offset in up to 1.5% of the sampling. 5.11.0-5.12.1
4105127
Any sFlow configuration changes that require an hsflowd restart are operational only after an initial delay of 60 seconds. 5.11.0-5.12.1
4101027
After you add a VLAN to a bridge member port, you might experience a few seconds of VXLAN traffic loss. 5.7.0-5.12.1
4100629
NVUE show command outputs show LLDP neighbor changes only after the LLDP update frequency multiplied by the hold time. 5.11.0-5.12.1
4100170
The NVUE Service fails to start after an upgrade from Cumulus Linux 5.9 to Cumulus Linux 5.10 because of a corrupted database. 5.10.0-5.12.1
4100164
Low power Intel SATA controllers experience issues when using the mobile low power chipset LPM policy. This can cause the SSD to become read only. 5.8.0-5.12.1
4082210
When you change the CPU resource limit with the nv set service control rsyslog resource-limit cpu command, the rsyslog agent does not start. To work around this issue, increase the CPU resource limit, then restart the service manually. 5.11.0-5.12.1
4077921
You cannot use package upgrade to upgrade from Cumulus Linux 5.9.2 to Cumulus Linux 5.10.1. You must install the Cumulus Linux 5.10.1 image. 5.10.1-5.12.1
4047798
Packet distribution based on ECMP hash is not working for VXLAN on top of rack switches where it is encapped. To work around this issue, enable lag hashing with gtp-teid to distribute VXLAN encapped packets across egress interfaces on the top of rack switches. 5.10.0-5.12.1
4030380
When you rollback interface configuration to the default setting with the nv unset interface command, NVUE removes the complete entry for the interface from the /etc/network/interface file, and puts the interface in admin down. As a result, you can’t configure FEC on the interface at the lower layers. 5.10.0-5.12.1
4019256
If you change the switch hostname, the histogram data producer service restarts. 5.10.0-5.12.1
4005422
When you upgrade Cumulus Linux 5.9.1 to Cumulus Linux 5.10 with package upgrade, the NTP service stops. To restart the NTP service, enable, then restart the service in the VRF in which it was running with the systemctl enable ntpsec@ and systemctl restart ntpsec@ commands. 5.10.0-5.12.1
3985682
On Spectrum-4 switches, multicast flows containing packets smaller than 512 bytes might not reach full line rate. Cumulus Linux supports 512 byte and larger multicast packets. 5.10.0-5.12.1
3966312
When connecting the SN5xxx switch to third party test equipment (such as IXIA) using copper cables at 100GbE, 200GbE, 400GbE, or 800GbE, links do not come up. 5.10.0-5.12.1
3915878
If you configure remote syslog export through a non-default VRF, you might see repeated error logs from the rsyslog process while the switch is booting:
rsyslogd: create UDP socket bound to device failed: No such device [v8.2302.0]rsyslogd: No UDP socket could successfully be initialized, some functionality may be disabled.  [v8.2302.0]

The logs occur because the rsyslog service starts before the networking service creates the configured VRF for syslog export. There is no functional impact with this issue.
5.9.0-5.12.1
3879809
What Just Happened (WJH) does not work on Spectrum-4 switches. 5.9.0-5.12.1
3879717
Running snmpwalk on the switch with the management IP address does not work. To work around this issue, use the localhost option (snmpwalk -v 2c -c public28 localhost 1.3.6.1.2.1.14) or create a control plane ACL whitelist rule. 5.10.0-5.12.1
3878394
When ZTP runs a script that contains wget, ZTP fails and you see a message similar to the following:
ZTP: ZTP DHCP: Unexpected error: ‘ascii’ codec can’t decode byte 0xe2 in position 181: ordinal not in range(128)ZTP: Script returned failure 

To work around this issue, use the -q option with wget.
5.9.0-5.12.1
3877516
When you connect two NVIDIA switches and configure 400G speed in force mode, links don’t come up.
To work around this issue, make sure auto-negotiation is always on when connecting NVIDIA to NVIDIA in PAM4.
5.9.0-5.12.1
3875373
When you run the nv config apply empty command, NVUE removes the cumulus user. If you are logged in as the cumulus user when you run the nv config apply empty command, the command fails. 5.9.0-5.12.1
3861745
On UEFI hardware (where the /sys/firmware/efi directory exists), using the update-grub program might generate a /boot/grub/grub.cfg that is incorrect for booting ONIE if the ONIE option is selected on the console while booting. To work around this issue, run mount LABEL=“EFI System” /boot/efi before using update-grub. 5.9.0-5.12.1
3855796
When configuring a Unicast Master Table for clients, the server addresses must be reachable and the route to the destination must exist. The unicast table can have one directly-connected port for a client. This restriction is only for directly connected ports and doesn’t apply to Unicast Servers on other devices or switches. 5.9.0-5.12.1
3847439
In rare cases on the Spectrum 1 switch where a dual connected host transmits all traffic flows to only one switch in a connected MLAG pair and the host changes behavior to hash all flows to the other MLAG switch, there might be traffic loss if the MAC FDB entry on the original switch ages out. 5.9.0-5.12.1
3835635
When adaptive routing is enabled, traffic for non adaptive routing enabled ports and non adaptive routing ECMPs might be routed over all ports in ECMP. Avoid using regular ECMPs with adaptive routing enabled on the switch. 5.9.0-5.12.1
3819945
When you connect an NVIDIA SN4410, SN4700, or SN5600 switch to any Spectrum 1, Spectrum-2, or Spectrum-3 peer switch (with four lanes) using a 4x breakout configuration and the default lanes per port setting, links do not come up. To work around this issue, provide the lanes per port configuration shown below:
cumulus@switch:~$ nv set interface  link breakout 4x lanes-per-port 1
5.9.0-5.12.1
3818545
The terminal monitoring software SecureCRT has a known issue when running on both Windows and Mac systems where it gets stuck when monitoring the serial port of the switch as Cumulus Linux boots up. When this occurs, the serial port stops as shown below and SecureCRT is unable to receive any more serial data from the switch (it is able to transmit).
Mounting dev-hugepages.mount - Huge Pages File System..
Mounting dev-mqueue.mount
5.9.0-5.12.1
3774274
When you manually configure the /etc/cumulus/datapath/qos/qos_features.conf file without applying the QoS configuration with NVUE, running the nv config apply empty command later does not clean up the QoS configuration. If the QoS configuration includes breakout ports, the nv config apply empty command fails due to a switchd reload trigger failure. To work around this issue, clean up the configuration manually in the /etc/cumulus/datapath/qos/qos_features.conf, then run the nv config apply empty command. 5.8.0-5.12.1
3773177
When you try to upgrade a switch from Cumulus Linux 5.5 or earlier to 5.8.0 or later with package upgrade, you see errors for expired GPG keys that prevent you from upgrading. To work around this issue, install the new keys with the following commands, then upgrade the switch.
cumulus@switch:~$ wget https://download.nvidia.com/cumulus/apt.cumulusnetworks.com/repo/pool/cumulus/c/cumulus-archive-keyring/cumulus-archive-keyring_4-cl5.6.0u5_all.deb
cumulus@switch:~$ sudo apt install ./cumulus-archive-keyring_4-cl5.6.0u5_all.deb
cumulus@switch:~$ sudo apt update
cumulus@switch:~$ sudo apt upgrade
4.0.0-4.4.5, 5.0.0-5.12.1
3771168
When you perform an ISSU upgrade on a Spectrum 1 switch, the switchd service might crash. 5.8.0-5.12.1
3677533
Due to resource constraints on the Spectrum 1 switch, staticd performance drops and takes longer to read static routes compared to the time BGP takes to complete a graceful restart and advertise routes and EOR to its helpers. As a result, static routes are advertised after the EOR is sent to graceful restart helpers, which delete the stale static routes and relearn them after receiving the EOR from the restarting node. Temporary traffic loss might occur. 5.7.0-5.12.1
3655681
When you disable, then enable STP auto-edge on a port, the port might not transition to the operational edge even though the port does not receive bpdus. To work around this issue, configure the port as an admin-edge port. 5.7.0-5.12.1
3637444
Applying an inbound control plane ACL on the eth0 management interface does not take effect. To work around this issue, apply the ACL on the mgmt interface; for example, nv set interface mgmt acl inbound control-plane. 5.7.0-5.12.1
3591918
The nv action disconnect system aaa user command does not clear all the open sessions. To work around this issue, run the command as many times as the number of sessions to clear all the sessions. 5.6.0-5.12.1
3587393
If you use the NVIDIA SN5600 (Spectrum-4) switch with Ixia test equipment, you might experience delayed link up due to intermittent link flaps.
To work around this issue when using copper cables:
  • Use Ixia IxOS version 9.37 with HF002156, or version 9.39 or later.
  • Use the DAC cable on ports 10 through 50.
  • Use NVIDIA cables with the recommended firmware revision.
  • Configure AN on the Cumulus Linux switch and AN/LT on Ixia.

To work around this issue when using fiber cables:
  • Configure 800g/Force.
  • Use the recommended NVIDIA optical adapters.
5.6.0-5.12.1
3556762
On rare occasions, SPT switchover might not happen cleanly in PIM resulting in some dropped packets. If you use PIM-SM to replicate EVPN BUM traffic, you might see a brief drop of multicast traffic before recovering due to normal PIM-SM traffic timeout. 5.5.0-5.12.1
3540510
400Gx8 ports only support traffic line rate with packets that are larger than 172 bytes. 5.6.0-5.12.1
3538321
In rare cases, an STP topology change on PTP over a VLAN can result in the switch losing the slave state and one of the ports might remain in an uncalibrated state. To work around this issue, toggle the port that is in the uncalibrated state up and down so that one of the ports is selected as the slave. 5.6.0-5.12.1
3497622
When you remove PSUs, then plug them back in, you might experience traffic loss and some ports might be in a down state. 5.6.0-5.12.1
3472163
On a switch with the Spectrum-4 ASIC, packets that are smaller than 256 bytes are not included in multicast flows. Multicast flows support packets that are 256 bytes or larger. 5.6.0-5.12.1
3444490
Migration from ONYX to Cumulus Linux is supported and tested with ONYX version 3.10.4302 GA only. 5.6.0-5.12.1
3442569
When trying to access the NVUE API, user accounts authenticated with a newly-configured external service, such as TACACS, RADIUS, or LDAP, receive a 401 forbidden error. To work around this issue, after enabling a new authentication service, make sure to restart both nginx.service and nvued.service to begin authenticating users against the new authentication service. 5.5.0-5.12.1
3430430
When you configure PTP on 50G ports, the offset correction might be higher, which can affect the time synchronization of the node. To work around this issue, configure PTP on 100G ports, or on 10G or 1G ports with PTP shaper enabled. 5.5.0-5.12.1
3424967
sudo for TACACS+ users with privilege level 15 does not work when reaching the TACACS+ server through the default VRF. To work around this issue, specify the interface name that the default VRF uses in the vrf= setting of the /etc/tacplus_servers file or run the NVUE nv set system aaa tacacs vrf command. If you don’t run either command, a TACACS+ user with privilege level 15 can run vrf task exec default sudo … to execute the sudo command. 5.0.0-5.12.1
3420056
The ADVA 5401 SFP module with hardware revision 5.01 does not come up at layer 1 when you use 10G QSA adaptors. To work around this issue, use 25G QSA adaptors. 4.4.0-4.4.5, 5.0.0-5.12.1
3362113
If you restore an NVUE startup.yaml file or run the nv config patch command after an upgrade that includes breakout ports with QoS configuration, the NVUE configuration fails to apply. Subsequent attempts to run nv config apply fail with a message similar to Invalid config [rev_id: 11] qos config is not supported on the following invalid interface: swp1s0. Supported on swp and bond interface types. To work around this issue, run nv unset on the configured QoS settings, then apply the breakout port configuration before you configure QoS. Alternatively, you can remove the QoS configuration from the yaml file and patch it separately after applying the breakout configuration. 5.4.0-5.12.1
3347538
When connecting NVIDIA-to-NVIDIA in PAM4, you must enable auto-negotiation. 5.4.0-5.12.1
3341214
If you use the NVUE REST API to configure a local user with a hashed password, the user cannot log in and the /etc/nvue.d/startup.yaml file shows the password as plain text. 5.4.0-5.12.1
3329518
When using TACACS+, if the /etc/nsswitch.conf file specifies passwd: files tacplus (files is listed before tacplus), a user that is present in both the local /etc/passwd file and the TACACS+ server cannot log into the switch. NVIDIA recommends that when using TACACS+, you list tacplus before files in /etc/nsswitch.conf. When using NVUE, ensure that tacacs has priority over local. 5.4.0-5.12.1
3327477
If you use su to change to a user specified through TACACS+, the user becomes the local tacacs0 thru tacacs15 user instead of the named user to run sudo commands. As a result, the named user password might not match the local tacacs0 thru tacacs15 user password. 3.7.0-3.7.16, 4.0.0-4.4.5, 5.0.0-5.12.1
3326659
If you have a large number of MAC addresses, they do not age out at the MAC ageing timeout value configured on the switch. It might take up to 30 seconds more for the MAC addresses to age out and be deleted from the hardware. To work around this issue, wait for the ageing timeout value plus 30 seconds. 5.4.0-5.12.1
3253218
Auto-negotiation isn’t supported on Spectrum-2 and Spectrum-3 switches using the 1G SFP-T module; FORCE 1G is configured instead. 5.4.0-5.12.1
3241567
When you apply switch configuration for the first time on a freshly booted switch and you run the nv config apply command after setting the hostname with nv set system hostname, you might see the error message Failed to start Hostname Service. To work around this issue, run the nv config apply command a second time. 5.3.0-5.12.1
3226506
The l1-show eth0 command does not show port information and is not supported in this release. 5.3.0-5.12.1
3225117
Occasionally, packet losses might occur on 25G ports when the link is raised without FEC. 5.4.0-5.12.1
3172504
When you connect the NVIDIA SN4600C switch to a Spectrum 1 or Spectrum-3 switch with a 40GbE passive copper cable (Part Number: MC2210126-005) on edge ports 1-4 and 61-64, there is an Effective BER of 1E-12 in PHY. 5.2.0-5.12.1
3147782
You cannot use NVUE to configure an SNMP view to include a subtree beginning with a period. For example:
cumulus@switch:~$ nv set service snmp-server viewname cumulusOnly included .1.3.6.1.4.1.40310Error: GET /nvue_v1/service/snmp-server/viewname/cumulusOnly/included?pointers=%5B%22%2Fparameters%22%2C+%22%2Fpatch%2FrequestBody%2Fcontent%2Fapplication~1json%2Fschema%22%2C+%22%2Fpatch%2Fparameters%22%2C+%22%2Fpatch%2Fresponses%2F200%2Flinks%22%5D responded with 404 NOT FOUND
To work around this issue, reference the OID without the preceding period ( . ) in the command.
5.3.0-5.12.1
3145869
On a Spectrum-3 switch, the PTP offset in 10GbE changes between +-27. The average offset is around 7. 5.2.0-5.12.1
3135952
PAM4 split cables (such as 2x100G, 4x100G, and 4x50G) do not work with a forced speed setting (when auto-negotiation is off) as the default speed enabled is for NRZ mode (such as 100G_4X). To work around this issue, set the appropriate lanes for forced speed (with auto-negotation off) with the ethtool -s swpX speed <port_speed> autoneg off lanes <no_of_lanes> command. For example:
cumulus@switch:~$ sudo ethtool -s swp1 speed 100000 autoneg off lanes 2
5.2.0-5.12.1
3115242
When you configure two VNIs in the same VLAN, ifupdown2 shows a vlan added to two or more VXLANS warning, which is only issued after the VNI is already added to the bridge. This leaves the new VNI in the PVID even if there is already an existing VNI configured in that PVID. 5.1.0-5.12.1
3103821
On the NVIDIA SN4700 switch, inserting and removing the PSU might cause loss of frames. 5.2.0-5.12.1
3084476
After you disable traffic shaping in the /etc/cumulus/datapath/qos/qos_features.conf file, the default QOS traffic shaping configuration does not restore. To work around this issue, restart switchd. 4.4.3, 5.0.0-5.12.1 4.4.4-4.4.5
3084027
Under a high load, you might see ingress drop counters increase. The drops are classified as HwIfInDiscards in ethtool and shown as ingress_general in hardware. 4.3.0-4.4.5, 5.0.0-5.12.1
3071652
On rare occasions, after you reboot or restart switchd on a Spectrum 1 switch, any 25G connections with Direct Attach Copper (DAC) cables that connect from the switch to a non-NVIDIA device might flap continuously. To work around this issue, bring the affected link administratively down for a few seconds on the non-NVIDIA device, then bring the link back up. 4.4.4-4.4.5, 5.1.0-5.12.1
3061656
When the CPU load is high during a warm boot, bonds with a slow LACP rate fail to forward layer 2 traffic for up to 60 seconds (depending on the duration of the CPU load) and static bonds fail to forward layer 2 traffic for up to 5 seconds. 5.1.0-5.12.1
2972540
With RADIUS enabled for user shell authentication, there might be a delay in local user authentication for non cumulus user accounts. 5.0.0-5.12.1
2964279
When a VNI flaps, an incorrect list of layer 2 VNIs are associated with a layer 3 VNI. The NCLU net show evpn vni detail command output shows duplicate layer 2 VNIs under a layer 3 VNI. 3.7.15, 4.4.2-4.4.5, 5.0.0-5.12.1 3.7.16
2951110
The net show time ntp servers command does not show any output with the management VRF. 3.7.15-3.7.16, 4.1.1-4.4.5, 5.0.0-5.12.1
2932083
CVE-2021-45944 CVE-2021-45949: Multiple security issues were discovered in Ghostscript, the GPL PostScript/PDF interpreter, which could result in denial of service and potentially the execution of arbitrary code if malformed document filesare processed
Vulnerable: <= 9.27~dfsg-2+deb10u4Fixed: 9.27~dfsg-2+deb10u5
5.0.0-5.12.1 4.4.3-4.4.5
2904450
When you run the ethtool -m or the l1-show command, the 400G interface optical values do not show. 4.4.0-4.4.5, 5.0.0-5.12.1
2891255
CVE-2021-39925: Buffer overflow in the Bluetooth SDP dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file.
Vulnerable: <= 2.6.20-0+deb10u1
Fixed: 2.6.20-0+deb10u2
4.0.0-4.4.1, 5.0.0-5.12.1 4.4.2-4.4.5
2890681
CVE-2021-42771: relative path traversal in Babel, a set of tools for internationalising Python applications, could result in the execution of arbitrary code
Vulnerable: 2.6.0+dfsg.1-1Fixed: 2.6.0+dfsg.1-1+deb10u1
4.0.0-4.4.1, 5.0.0-5.12.1 4.4.2-4.4.5
2885305
Certain Murata PSU attributes show intermittently in the sensors command output. To work around this issue, upgrade to the latest PSU firmware on Murata. 5.0.0-5.12.1
2867042
When connecting the NVIDIA SN4600 switch to another NVIDIA Spectrum switch, you must use auto-negotiation mode (not force mode); otherwise the switch might use the wrong Tx configuration. 5.0.0-5.12.1
2823307
Cumuls Linux does not support a bond with more than 64 ports. Any configuration with more than 64 ports in a bond changes all ports to down when you apply the configuration. 5.0.0-5.12.1
2736108
When you change the VRRP advertisement interval on the master, the master advertisement interval field in the show vrrp command output does not show the updated value. 4.4.0-4.4.5, 5.0.0-5.12.1
2684925
The NVUE nv show vrf default router bgp peer command produces a 404 not found error. 4.4.0-4.4.5, 5.0.0-5.12.1
2671652
In VXLAN routing environments, you might experience sub-optimal route convergence delays (longer than five seconds) when a prefix transitions to a new ECMP next-hop group. This condition might occur when a VTEP loses ECMP routes through all uplink peerings, then installs the routes through a different path, such as an MLAG peerlink. 4.4.0-4.4.5, 5.5.0-5.12.1

Fixed Issues in 5.12.0

Issue ID Description Affects
4280823
When you configure an invalid switch port (swp), NVUE adds the invalid configuration instead of rejecting it. The invalid interface in the configuration does not have any functional impact.
4277143
After a factory reset with the nv action reset system factory-default force command, RADIUS does not fully reset; the radius-cmd-acct package is not installed correctly and includes missing files. In addition, /etc/pam.d/common-auth is incorrect. 5.11.0
4270957
Optimized (two partition) upgrade from Cumulus Linux 5.11.0 requires approximately 2.4 Gbytes of free space in /var after downloading the image with NVUE commands instead of 1.6 Gbytes of free space. Upgrade needs the extra space for an additional copy of the downloaded image in /var . 5.11.0
4256151
After rebooting the spine switch in an EVPN multihoming configuration, the BGP EVPN Type-2 entry is missing, which causes flooding and duplicates in the fabric. To work around this issue, flush the IP neighbor entries with the sudo ip neigh flush x.x.x.x command. 5.9.1-5.11.0
4251984
NVUE prevents you from setting the IPv6 RA lifetime to 0 (zero). Use vtysh mode to apply the setting. 5.11.0
4251315
When you enable NAT dynamic mode and NAT rules with NVUE in a single commit, you see the error error: hw sync failed (Dynamic NAT is not enabled. Ignoring rules..). To work around this issue, enable dynamic NAT with NVUE in one commit, then add NAT ACL rules in a subsequent commit. 5.11.0
4250847
When the STP state goes down, then back up on the primary MLAG peer, the peerlink state is not updated correctly in mstpd. 5.8.0-5.11.0
4242756
A Python version change removed the encoding argument parameter of the json loads function, which causes an exception. 5.11.0
4240584
When you enable SNMP, Cumulus Linux enables and creates an agentx user called debian-snmp automatically for FRR. As a result, TACACS sends log messages similar to the following:
«sudo: nss_tacplus: TACACS+ server 10.23.1.0:49 read failed (-3) for user Debian-snmp: Success»
«sudo: tac_author_read: reply timeout after 5 secs»

To work around this issue, manually add the debian-snmp user to the TACACS configuration exclude_users list so that TACACS ignores this user.
5.11.0
4220393
The default GRUB timeout style changed from menu to countdown. When booting, a countdown displays on the console and you can use the escape key to break out of the countdown and show the GRUB menu. This reduces the chance of console noise halting the reboot process. If you press the escape key twice, you might go to the GRUB command line. In this case, type normal to get back to the GRUB menu or reboot to reboot the switch. 5.11.0
4220147
When you bring STP down, then up on the primary MLAG peer, the STP state machine restarts and the peerlink operational edge resets. As a result, the secondary MLAG peer ends up in an STP discarding state. To work around this issue, restart the clagd service. 5.8.0-5.11.0
4209429
Unreachable or reject routes might not get installed into the SDK. 5.11.0
4208746
When using the REST API to move a port from one bridge to another bridge, the bridge-vlan configuration on the port might be programmed incorrectly. To resolve the issue, run the ifreload -a command. 5.9.1-5.11.0
4207037
NVUE Rest API calls that are authenticated with TACACS on the switch append unnecessary database entries to the /run/tacacs_clent_map file, which increases the file size. Over time, this increases the TACACS login authentication time, resulting in delayed login authentication.
To work around this issue, delete the tacacs_client_map file with the sudo rm rf /run/tacacs_client_map command.
5.11.0
4205060
Debian 12 does not support LDAP SSL CRL check. Cumulus Linux now uses CRL file. 5.11.0
4203794
The nv show platform transceiver command sometimes does not show transceiver data for layer 3 Dot1q subinterfaces (such as swp2.10). To work around this issue, run the ethtool -m command. 5.11.0
4203784
Under unique hardware failure conditions, when the ASIC temperature sensor read fails repeatedly, the fans are set to twenty percent, which might not be high enough to maintain proper ASIC cooling, resulting in a thermal shutdown. 5.11.0
4200758
The nv show service ntp command shows the peers that are discovered together with the configured NTP servers instead of displaying only the NTP configuration. As a result, the applied and operational columns have different values, which causes confusion. 5.11.0
4199734
The nv show system ztp command might report an error when you use a system local that represents time differently from %a %b %d %H:%M:%S %Y %Z. 5.11.0
4199125
ZTP scripts return an error due to incorrect ASCI to UTF-8 conversion. 5.11.0
4198683
Configuring the listening-address for the SNMP server fails for IP addresses associated with VRFs other than the management VRF. 5.11.0
4195240
Cumulus Linux installs and runs the atftpd program by default but cannot access it because a /tftpboot directory is missing. 5.9.2-5.11.0
4185962
When you change the VRR MAC address, switchd crashes. This occurs because deleting an old VRR MAC address triggers a neighbor update that changes the ECMP container resolution, which results in route entry updates
This happens in async mode, where the end notification expected after an end of operation is missing.
5.9.2-5.11.0
4185426
When you add a new MLAG bond, the BPDU guard state of its peer is initialized to False and immediately updated correctly after resync if the bond is up. If the bond is down, resync is not done and the peer PBDU guard state is not updated, which leads to a conflict if the local PBDU guard is enabled.
Even though it seems that PBDU configuration does not match between MLAG peers, this issue does not have any functional impact. It gets cleared when the bond becomes up.
5.9.2-5.11.0
4184845
Stale Next Hop Groups are left in the kernel resulting in polarized Adaptive Routing traffic. 5.10.1-5.11.0
4183214
If you upgrade the switch from Cumulus Linux 5.9.x or 5.10.x with package upgrade and Radius is enabled, you see configuration and commit errors. To avoid this issue, either disable Radius during package upgrade or disable Radius before package upgrade with the sudo adduser –system –group –home /run/nslcd –no-create-home –gecos ‘nslcd name service LDAP connection daemon’ nslcd command. 5.11.0
4182753
When you configure the SPAN port mirror truncate size to a value greater than four and less than the supported minimum, NVUE allows the configuration even though there are errors and failures in the mirror session configuration.
The supported values for truncate size are 32 to 4088 for Spectrum 1, 48 to 4088 for Spectrum-2 and Spectrum-3, and 64 to 4088 for Spectrum-4.
To work around this issue, run the echo <supported_value> > /cumulus/switchd/config/mirror/session/1/truncate_size command before you reconfigure mirror sessions with the supported values.
5.8.0-5.11.0
4176931
The nv show platform firmware command results in a Python traceback and takes a long time to complete because the VX image does not support the smartctl utility. 5.11.0
4175695
If all of the neighbors returned in the nv show vrf router bgp neighbor command output have no address-family configuration, you see an internal error when the nested table in the output is being rendered. 5.10.0-5.11.0
4174646
On the NVIDIA SN5400 and SN5600 switch, the fans might run at full speed when it is not necessary. 5.10.1-5.11.0
4170628
If you use a bridge name other than br_default, PTP neighbors fail to establish because the PTP packets are sourced from an unexpected IP address.
To work around this issue, configure the base-interface for the VLAN interface with the nv set interface base-interface command.
5.10.0-5.11.0
4159554
When you configure EVPN multihoming with more than one ESI bond member, you might see intermediate traffic loss. 5.9.1-5.11.0
4156332
On the Spectrum-4 switch, switchd might crash with the following log message:
CRIT Restarting switchd to recover from SDK health event: FW Long Command
5.10.1-5.11.0
4151336
After you reboot the switch, the ifplugd.service fails to start monitoring the interface. 5.8.0-5.11.0
4150508
When there is a large number of discontiguous VTEP to VLAN mappings, switchd crashes with a Netlink error similar to the following:

netlink.c:409 CRIT nlroute: nl_cache_mngr_data_ready failed: Kernel reported truncated message
5.10.1-5.11.0
4134174
If you configure a route map by attaching it to a specific protocol, then you detach it from that protocol, if you then attach the same route map to all protocols, then detach it from all protocols, Cumulus Linux deletes routes from the forwarding table.
To work around this issue, either attach the route map to all protocols or attach the route map to each protocol you want to use. For example, to attach the route map to all protocols, run the nv set vrf router rib fib-filter route-map command. To attach the route map to each protocol you want to use, run the nv set vrf router rib fib-filter protocol route-map command.
5.11.0
4130022
LDAP does not support per-command authorization. 5.11.0
4127932
After you run the nv action install system image command or the cl-image-upgrade -u command, if you run the command a second time to upgrade to a different image, the upgrade might fail because there are leftover /var/install/sys mounts. To resolve this issue, either reboot before you retry image upgrade or run the following commands :
cumulus@switch:~$ sudo mount –make-rslave /var/installer/sys
cumulus@switch:~$ sudo umount -R /var/installer/sys
cumulus@switch:~$ sudo umount tmpfs-installer
5.11.0
4127315
If you set BGP community-advertise large to off with NVUE, large communities are still sent to BGP peers. To resolve this issue, NVUE has changed the default value of community-advertise large from off to on. 5.11.0
4122591
The NVUE nv set system aaa ldap ssl ca-list command shows the following error if you use the string option:
Error: At ca-list: ‘/etc/ssl/certs/ca-cert.crt’ is not one of [‘default’, ‘none’]
5.11.0
4115126
When IPv4 layer 3 switch ports and virtual interfaces flap, switchd might send an ICMP Reply message instead of an ARP request (although no ICMP request was sent). Multiple ICMP Replies might be sent to any of the neighbor IP addresses of that interface. 5.9.2-5.11.0
4101560
The nv set vrf router rib fib-filter route-map command only works if you restart FRR after you run the command. To work around this issue, attach the route map to each needed protocol; for example, run the nv set vrf router rib fib-filter protocol route-map command. 5.11.0
4052578
When you perform a binary upgrade from Cumulus Linux 5.8 or earlier to 5.9.0 or later with a pre-staged startup.yaml file, the cumulus user password is reset to the default password because there is no default startup.yaml file present in 5.8.0 or earlier. To work around this issue, generate the startup.yaml file from the existing NVUE configuration. 5.9.2-5.11.0
3844670
When you configure TACACS with NVUE or merge in an NVUE configuration file including TACACS configuration with the nv config patch command, you see an unrecoverable error when running additional NVUE commands. To work around this issue, restart the NVUE service with the systemctl restart nvued.service command. 5.9.0-5.11.0