Cumulus Linux vs Cisco IOS - Spanning Tree Protocol

Issue

User already knows Cisco IOS format and wants translation to mstpd (the spanning tree protocol daemon for Linux).

Refer to the STP parameter list for more information.

You can find the Cisco Configuration Guide used to interpret their commands here.

Spanning Tree Translation Table

Cumulus Linux	Cisco Systems IOS	Description
`net add bridge stp maxage 20` Configured under the bridge	`spanning-tree vlan vlan-id max-age 20` Global configuration command	Sets the bridge/VLAN maximum age to `<max_age>` seconds. The default is 20 for both Operating Systems.
`net add bridge stp fdelay 15` Configured under the bridge	`spanning-tree vlan vlan-id forward-time seconds` Global configuration command	Sets the bridge/VLAN forward delay to `<time>` seconds. The default is 15 for both Operating Systems.
`net add bridge stp maxhops 20` Configured under the bridge	`spanning-tree vlan vlan-id root primary [ diameter net-diameter [ hello-time seconds ]]` Global configuration command	Sets the bridge's maximum hops to `<max_hops>`. The default on Cumulus Linux is 20. On Cisco the range is 2 to 7 with the default being 7.
`net add bridge stp txholdcount 6` Configured under the bridge	`spanning-tree transmit hold-count value` Global configuration command	Sets the bridge/VLAN transmit hold count to `<tx_hold_count>`. The default is 6 for both Operating Systems. Cisco describes this as "the number of BPDUs that can be sent before pausing for 1 second."
`net add bridge stp forcevers rstp` Configured under the bridge	`spanning-tree mode{ pvst \| mst \| rapid-pvst }` Global configuration command	Sets the bridge/VLAN to a particular spanning-tree mode (MST, RSTP, etc)
`net add bridge stp treeprio 32768` Configured under the bridge	`spanning-tree vlan vlan-id priority priority` Global configuration command	Configure the switch's priority of a bridge/VLAN. The default for both operating systems is 32768. The range is a number between 0 and 65535
`net add bridge stp hello 2` Configured under the bridge	`spanning-tree vlan vlan-id hello-time seconds` Global configuration command	Sets the bridge/VLAN hello time to <time> seconds. The default is 2 for both operating systems.
`net add interface swp10 stp portpathcost 10` Configured under an interface stanza	`spanning-tree vlan vlan-id cost cost` -interface configuration command	Configure the cost for a bridge/VLAN. The range is 1 to 200000000. Cisco derives the cost from the media speed of the interface. On Cumulus Linux the default is 0.
`net add interface swp1 stp portadminedge yes` Configured under the interface	`spanning-tree portfast default` Global configuration command `spanning-tree portfast` -interface configuration command	Immediately brings an interface configured as an access or trunk port to the forwarding state from a blocking state, bypassing the listening and learning states.
`net add interface swp2 stp portautoedge yes` Configured under interface	`No Comparable Command`	Reception of BPDUs on a port determines whether port is an edge port or not. When the port is receiving no BPDUs it becomes an edge port.
`net add interface swp3 stp portp2p yes` Configured under the interface	`spanning-tree link-type { point-to-point \| shared }` -interface configuration command	Enables/disables the point-to-point detection mode of the port <port> in bridge <bridge>. The default is auto on Cumulus Linux. Cisco determines the link-type by the duplex settings (p2p for full and shared for half).
`net add interface swp4 stp portrestrrole yes` Configured under the interface	`spanning-tree guard root` -interface configuration command	Enables/disables the ability of the port <port> in bridge <bridge> to take the root role. The default is no.
`net add interface swp5 stp bpduguard yes` Configured under the interface	`spanning-tree portfast bpduguard default` Global configuration command, however only affects ports configured with `spanning-tree portfast`	Enables/disables the BPDU guard configuration
`net add interface swp6 stp portbpdufilter yes` Configured under the interface	`spanning-tree portfast bpdufilter default` Global configuration command, however only affects ports configured with `spanning-tree portfast`	Enables bpdufilter on a switch port, which filters BPDUs in both directions.
`net add interface swp7 stp portrestrtcn yes` Configured under the interface	no equivalent	Enables/disables the ability of the port <port> in bridge <bridge> to propagate received topology change notifications. The default is no.
`net add interface swp8 stp portnetwork yes` Configured under the interface	`spanning-tree bridge assurance` Global configuration command	Enables/disables the bridge assurance capability
`net add interface swp9 stp treeportprio 128` Configured under the interface	`spanning-tree port-priority priority` Configured under the interface	Configure the port priority for an interface. The default for both operating systems is 128.

Full Configuration Example

cumulus@switch:~$ cat /etc/network/interfaces

auto bridge
iface bridge
    bridge-ports glob swp1-10
    bridge-vlan-aware yes
    bridge-vids 1-2000
    bridge-pvid 1
    bridge-stp on
    mstpctl-maxhops 20
    mstpctl-maxage 20

auto swp1
iface swp1
    mstpctl-portadminedge yes

auto swp2
iface swp2
    mstpctl-portautoedge yes

auto swp3
iface swp3
    mstpctl-portp2p yes

auto swp4
iface swp4
    mstpctl-portrestrrole yes

auto swp5
iface swp5
    mstpctl-bpduguard yes

auto swp6
iface swp6
    mstpctl-portbpdufilter yes

auto swp7
iface swp7
    mstpctl-portrestrtcn yes

auto swp8
iface swp8
    mstpctl-portnetwork yes

auto swp9
iface swp9
    mstpctl-treeportprio 128

auto swp10
iface swp10
    mstpctl-portpathcost 10

Cumulus Linux vs Cisco IOS - Spanning Tree Protocol

Issue

Spanning Tree Translation Table

Full Configuration Example

Products

Solutions

Learn