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Configure System Event Notifications

This section describes how to configure NetQ to send event notifications through a third-party-application, such as syslog, PagerDuty, Slack, email, or a generic webhook channel. NetQ can generate notifications for system and threshold-crossing events or according to a predefined set of rule keys.

You can implement a proxy server (that sits between the NetQ appliance or VM and the integration channels) that receives, processes, and distributes the notifications rather than having them sent directly to the integration channel. If you use such a proxy, you must configure NetQ with the proxy information.

Event Message Format

Messages have the following structure: <message-type><timestamp><opid><hostname><severity><message>

Element Description
message type Category of event
timestamp Date and time event occurred
opid Identifier of the service or process that generated the event
hostname Hostname of network device where event occurred
severity Severity classification: error or info
message Text description of event

For example:

To set up the integrations, you must configure NetQ with at least one channel, one rule, and one filter. To refine what messages you want to view and where to send them, you can add additional rules and filters and set thresholds on supported event types. You can also configure a proxy server to receive, process, and forward the messages. This is accomplished in the following order:

Configure Basic NetQ Event Notifications

The simplest configuration you can create is one that sends all events generated by all interfaces to a single notification application. A notification configuration must contain one channel, one rule, and one filter. Creation of the configuration follows this same path:

  1. Create a channel.
  2. Create a rule that accepts a selected set of events.
  3. Create a filter that associates this rule with the newly created channel.

Create a Channel

The first step is to create a Slack, PagerDuty, syslog, email, or generic channel to receive the notifications.

  1. Expand the Menu and select Notification channels.

  2. The Slack tab is displayed by default.

  3. Add a channel.

    • When no channels have been specified, click Add Slack channel.
    • When at least one channel has been specified, click Add above the table.

  4. Provide a unique name for the channel. Note that spaces are not allowed—use dashes or camelCase instead.

  5. Create an incoming webhook as described in the Slack documentation. Then copy and paste it in the Webhook URL field.

  6. (Optional) Select the toggle to send all notifications to this channel.

  7. Click Add.

  8. (Optional) To verify the channel configuration, click Test.

To create and verify a Slack channel, run:

netq add notification channel slack <text-channel-name> webhook <text-webhook-url> [severity info|severity error] [tag <text-slack-tag>] [default]
netq show notification channel [json]
Option Description
<text-channel-name> User-specified Slack channel name
webhook <text-webhook-url> WebHook URL for the desired channel. For example: https://hooks.slack.com/services/text/moretext/evenmoretext
severity <level> The log level, either info or error. The severity defaults to info if unspecified.
tag <text-slack-tag> Optional tag appended to the Slack notification to highlight particular channels or people. An @ sign must precede the tag value. For example, @netq-info.
default Set the channel as default and send all notifications to this channel

The following example shows the creation of a slk-netq-events channel and verifies the configuration.

  1. Create an incoming webhook as described in the documentation for your version of Slack.

  2. Create the channel.

    cumulus@switch:~$ netq add notification channel slack slk-netq-events webhook https://hooks.slack.com/services/text/moretext/evenmoretext
Successfully added/updated channel slk-netq-events

  3. Verify the configuration.

    cumulus@switch:~$ netq show notification channel
Matching config_notify records:
Name            Type             Severity Channel Info               Is Default
--------------- ---------------- -------- -------------------------- ------------
slk-netq-events slack            info     webhook:https://hooks.s    False
                                            lack.com/services/text/ 
                                            moretext/evenmoretext.

  1. Expand the Menu and select Notification channels.

  2. Click PagerDuty.

  3. Add a channel.

    • When no channels have been specified, click Add PagerDuty channel.
    • When at least one channel has been specified, click Add above the table.

  4. Provide a unique name for the channel. Note that spaces are not allowed. Use dashes or camelCase instead.

  5. Obtain and enter an integration key (also called a service key or routing key).

  6. (Optional) Select the toggle to send all notifications to this channel.

  7. Click Add.

  8. (Optional) To verify the channel configuration, click Test.

To create and verify a PagerDuty channel, run:

netq add notification channel pagerduty <text-channel-name> integration-key <text-integration-key> [severity info|severity error] [default]
netq show notification channel [json]
Option Description
<text-channel-name> User-specified PagerDuty channel name
integration-key <text-integration-key> The integration key is also called the service_key or routing_key. The default is an empty string ("").
severity <level> The log level, either info or error. The severity defaults to info if unspecified.
default Set the channel as default and send all notifications to this channel
The following example shows the creation of a *pd-netq-events* channel and verifies the configuration.

  1. Obtain an integration key as described in this PagerDuty support page.

  2. Create the channel.

    cumulus@switch:~$ netq add notification channel pagerduty pd-netq-events integration-key c6d666e210a8425298ef7abde0d1998
Successfully added/updated channel pd-netq-events

  3. Verify the configuration.

    cumulus@switch:~$ netq show notification channel
Matching config_notify records:
Name            Type             Severity         Channel Info              Is Default
--------------- ---------------- ---------------- ------------------------  ------------
pd-netq-events  pagerduty        info             integration-key: c6d666e  False
                                                210a8425298ef7abde0d1998

  1. Expand the Menu and select Notification channels.

  2. Click Syslog.

  3. Add a channel.

    • When no channels have been specified, click Add syslog channel.
    • When at least one channel has been specified, click Add above the table.

  4. Provide a unique name for the channel. Note that spaces are not allowed. Use dashes or camelCase instead.

  5. Enter the IP address and port of the syslog server.

  6. (Optional) Select the toggle to send all notifications to this channel.

  7. Click Add.

  8. (Optional) To verify the channel configuration, click Test.

To create and verify a syslog channel, run:

netq add notification channel syslog <text-channel-name> hostname <text-syslog-hostname> port <text-syslog-port> [severity info | severity error] [default]
netq show notification channel [json]
Option Description
<text-channel-name> User-specified syslog channel name
hostname <text-syslog-hostname> Hostname or IP address of the syslog server to receive notifications
port <text-syslog-port> Port on the syslog server to receive notifications
severity <level> The log level, either info or error. The severity defaults to info if unspecified.
default Set the channel as default and send all notifications to this channel

The following example shows the creation of a syslog-netq-events channel and verifies the configuration.

  1. Obtain the syslog server hostname (or IP address) and port.

  2. Create the channel.

    cumulus@switch:~$ netq add notification channel syslog syslog-netq-events hostname syslog-server port 514
Successfully added/updated channel syslog-netq-events

  3. Verify the configuration.

    cumulus@switch:~$ netq show notification channel
Matching config_notify records:
Name            Type             Severity Channel Info           Is Default
--------------- ---------------- -------- ---------------------- ------------
syslog-netq-eve syslog            info     host:syslog-server    False
nts                                        port: 514

  1. Expand the Menu and select Notification channels.

  2. Click Email.

  3. Add a channel.

    • When no channels have been specified, click Add email channel.
    • When at least one channel has been specified, click Add above the table.

  4. Provide a unique name for the channel. Note that spaces are not allowed. Use dashes or camelCase instead.

  5. Enter a list of recipient email addresses, separated by commas, and no spaces. For example: user1@domain.com,user2@domain.com,user3@domain.com

  6. (Optional) Select the toggle to send all notifications to this channel.

  7. The first time you configure an email channel, you must also specify the SMTP server information:

    • Host: hostname or IP address of the SMTP server
    • Port: port of the SMTP server (typically 587)
    • User ID/Password: your administrative credentials
    • From: email address that indicates who sent the notifications

    After the initial setup, any additional email channels you create can use this configuration, by clicking Existing.

  8. Click Add.

  9. (Optional) To verify the channel configuration, click Test.

To create and verify the specification of an email channel, run:

netq add notification channel email <text-channel-name> to <text-email-toids> [smtpserver <text-email-hostname>] [smtpport <text-email-port>] [login <text-email-id>] [password <text-email-password>] [severity info | severity error] [default]
netq add notification channel email <text-channel-name> to <text-email-toids> [default]
netq show notification channel [json]

The configuration is different depending on whether you are using the on-premises or cloud version of NetQ. Do not configure SMTP for cloud deployments as the NetQ cloud service uses the NetQ SMTP server to push email notifications.

For an on-premises deployment:

  1. Set up an SMTP server. The server can be internal or public.

  2. Create a user account (login and password) on the SMTP server. NetQ sends notifications to this address.

  3. Create the notification channel using the following command:

    netq add notification channel email <text-channel-name> to <text-email-toids>  [smtpserver <text-email-hostname>] [smtpport <text-email-port>] [login <text-email-id>] [password <text-email-password>] [severity info | severity error] [default]
For example: 
cumulus@switch:~$ netq add notification channel email onprem-email to netq-notifications@domain.com smtpserver smtp.domain.com smtpport 587 login smtphostlogin@domain.com password MyPassword123
Successfully added/updated channel onprem-email

  1. Verify the configuration.

    cumulus@switch:~$ netq show notification channel
Matching config_notify records:
Name            Type             Severity         Channel Info             Is Default
--------------- ---------------- ---------------- ------------------------ ---------------
onprem-email    email            info             password: MyPassword123, False
                                                  port: 587,
                                                  isEncrypted: True,
                                                  host: smtp.domain.com,
                                                  from: smtphostlogin@doma
                                                  in.com,
                                                  id: smtphostlogin@domain
                                                  .com,
                                                  to: netq-notifications@d
                                                  omain.com

For a cloud deployment:

  1. Create the notification channel using the following command:

    netq add notification channel email <text-channel-name> to <text-email-toids>
For example: 
cumulus@switch:~$ netq add notification channel email cloud-email to netq-cloud-notifications@domain.com
Successfully added/updated channel cloud-email

  1. Verify the configuration.

    cumulus@switch:~$ netq show notification channel
Matching config_notify records:
Name            Type             Severity         Channel Info             Is Default
--------------- ---------------- ---------------- ------------------------ --------------
cloud-email    email            info             password: TEiO98BOwlekUP  False
                                                 TrFev2/Q==, port: 587,
                                                 isEncrypted: True,
                                                 host: netqsmtp.domain.com,
                                                 from: netqsmtphostlogin@doma
                                                 in.com,
                                                 id: smtphostlogin@domain
                                                 .com,
                                                 to: netq-notifications@d
                                                 omain.com

  1. Click Menu, then click Notification channels.

  2. Click Generic.

  3. Add a channel.

    • When no channels have been specified, click Add generic channel.
    • When at least one channel has been specified, click Add above the table.

  4. Provide a unique name for the channel. Note that spaces are not allowed. Use dashes or camelCase instead.

  5. Specify a webhook URL.

  6. Set the desired notification severity, SSL, and authentication parameters for this channel.

  7. (Optional) Select the toggle to send all notifications to this channel.

  8. Click Add.

  9. (Optional) To verify the channel configuration, click Test.

To create and verify a generic channel, run:

netq add notification channel generic <text-channel-name> webhook <text-webhook-url> [severity info | severity error ] [use-ssl True | use-ssl False] [auth-type basic-auth generic-username <text-generic-username> generic-password <text-generic-password> | auth-type api-key key-name <text-api-key-name> key-value <text-api-key-value>] [default]
netq show notification channel [json]
Option Description
<text-channel-name> User-specified generic channel name
webhook <text-webhook-url> URL of the remote application to receive notifications
severity <level> The log level, either info or error. The severity defaults to info if unspecified.
use-ssl [True | False] Enable or disable SSL
auth-type [basic-auth | api-key] Set authentication parameters. Either basic-auth with generic-username and generic-password or api-key with a key-name and key-value
default Set the channel as default and send all notifications to this channel

Create a Rule

The second step is to create and verify a rule that accepts a set of events. You create rules for system events using the NetQ CLI.

To create and verify a rule, run:

netq add notification rule <text-rule-name> key <text-rule-key> value <text-rule-value>
netq show notification rule [json]

Refer to the Rule Keys and Values Reference for a list of available keys and values.

To remove notification rules, run:

netq del notification rule <text-rule-name-anchor>
▼ Example rules

Create a Filter

The final step is to create a filter to tie the rule to the channel. You create filters for system events using the NetQ CLI.

To create and verify a filter, run:

netq add notification filter <text-filter-name> rule <text-rule-name-anchor> channel <text-channel-name-anchor>
netq show notification filter [json]

These examples use the channels and rules created in the previous sections. After creating this filter, NetQ will send all interface events to your designated channel. 

cumulus@switch:~$ netq add notification filter notify-all-ifs rule all-interfaces channel pd-netq-events
Successfully added/updated filter notify-all-ifs

cumulus@switch:~$ netq show notification filter
Matching config_notify records:
Name            Order      Severity         Channels         Rules
--------------- ---------- ---------------- ---------------- ----------
notify-all-ifs  1          info             pd-netq-events   all-interfaces

cumulus@switch:~$ netq add notification filter notify-all-ifs rule all-interfaces channel slk-netq-events
Successfully added/updated filter notify-all-ifs

cumulus@switch:~$ netq show notification filter
Matching config_notify records:
Name            Order      Severity         Channels         Rules
--------------- ---------- ---------------- ---------------- ----------
notify-all-ifs  1          info             slk-netq-events   all-interfaces

cumulus@switch:~$ netq add notification filter notify-all-ifs rule all-interfaces channel syslog-netq-events
Successfully added/updated filter notify-all-ifs

cumulus@switch:~$ netq show notification filter
Matching config_notify records:
Name            Order      Severity         Channels         Rules
--------------- ---------- ---------------- ---------------- ----------
notify-all-ifs  1          info             syslog-netq-events all-ifs

cumulus@switch:~$ netq add notification filter notify-all-ifs rule all-interfaces channel onprem-email
Successfully added/updated filter notify-all-ifs

cumulus@switch:~$ netq show notification filter
Matching config_notify records:
Name            Order      Severity         Channels         Rules
--------------- ---------- ---------------- ---------------- ----------
notify-all-ifs  1          info             onprem-email all-ifs

▼ Additional filter examples

Filter names can contain spaces, but must be enclosed with single quotes in commands. It is easier to use dashes in place of spaces or mixed case for better readability. For example, use bgpSessionChanges or BGP-session-changes or BGPsessions, instead of 'BGP Session Changes'. Filter names are also case sensitive.

As you create filters, they are added to the bottom of a list of filters. By default, NetQ processes event messages against filters starting at the top of the filter list and works its way down until it finds a match. NetQ applies the first filter that matches an event message, ignoring the other filters. Then it moves to the next event message and reruns the process, starting at the top of the list of filters. NetQ ignores events that do not match any filter.

You might have to change the order of filters in the list to ensure you capture the events you want and drop the events you do not want. This is possible using the before or after keywords to ensure one rule is processed before or after another.

To delete notification filters, run:

netq del notification filter <text-filter-name-anchor>

Delete a Channel

You can remove channels if they are not part of an existing notification configuration.

To remove notification channels:

  1. Expand the Menu and select Notification channels.

  2. Select the tab for the type of channel you want to remove.

  3. Select one or more channels.

  4. Click Delete.

To remove notification channels, run:

netq del notification channel <text-channel-name-anchor>

This example removes a Slack integration and verifies it is no longer in the configuration:

cumulus@switch:~$ netq del notification channel slk-netq-events

cumulus@switch:~$ netq show notification channel
Matching config_notify records:
Name            Type             Severity         Channel Info
--------------- ---------------- ---------------- ------------------------
pd-netq-events  pagerduty        info             integration-key: 1234567
                                                    890

Configure a Proxy Server

To send notification messages through a proxy server instead of directly to a notification channel, you configure NetQ with the hostname and optionally a port of a proxy server. If you do not specify a port, NetQ defaults to port 80. NetQ supports one proxy server. To simplify deployment, configure your proxy server before configuring channels, rules, or filters.

To configure and verify the proxy server, run:

netq add notification proxy <text-proxy-hostname> [port <text-proxy-port>]
netq show notification proxy

This example configures and verifies the proxy4 server on port 80 to act as a proxy for event notifications.

cumulus@switch:~$ netq add notification proxy proxy4
Successfully configured notifier proxy proxy4:80

cumulus@switch:~$ netq show notification proxy
Matching config_notify records:
Proxy URL          Slack Enabled              PagerDuty Enabled
------------------ -------------------------- ----------------------------------
proxy4:80          yes                        yes

You can remove the proxy server with netq del notification proxy. This changes the NetQ behavior to send events directly to the notification channels.

Rule Keys and Values Reference

A single key-value pair comprises each rule. The key-value pair indicates what messages to include or drop from event information sent to a notification channel. You can create more than one rule for a single filter. Creating multiple rules for a given filter can provide a very defined filter. For example, you can specify rules around hostnames or interface names, enabling you to filter messages specific to those hosts or interfaces. You can only create rules after you have set up your notification channels.

NetQ includes a predefined fixed set of valid rule keys. You enter values as regular expressions, which vary according to your deployment.

Service Rule Key Description Example Rule Values
BGP message_type Network protocol or service identifier bgp
hostname User-defined, text-based name for a switch or host server02, leaf11, exit01, spine-4
peer User-defined, text-based name for a peer switch or host server4, leaf-3, exit02, spine06
desc Text description
vrf Name of VRF interface mgmt, default
old_state Previous state of the BGP service Established, Failed
new_state Current state of the BGP service Established, Failed
old_last_reset_time Previous time that BGP service was reset Apr3, 2019, 4:17 PM
new_last_reset_time Most recent time that BGP service was reset Apr8, 2019, 11:38 AM
ConfigDiff message_type Network protocol or service identifier configdiff
hostname User-defined, text-based name for a switch or host server02, leaf11, exit01, spine-4
vni Virtual Network Instance identifier 12, 23
old_state Previous state of the configuration file created, modified
new_state Current state of the configuration file created, modified
EVPN message_type Network protocol or service identifier evpn
hostname User-defined, text-based name for a switch or host server02, leaf-9, exit01, spine04
vni Virtual Network Instance identifier 12, 23
old_in_kernel_state Previous VNI state, in kernel or not true, false
new_in_kernel_state Current VNI state, in kernel or not true, false
old_adv_all_vni_state Previous VNI advertising state, advertising all or not true, false
new_adv_all_vni_state Current VNI advertising state, advertising all or not true, false
LCM message_type Network protocol or service identifier clag
hostname User-defined, text-based name for a switch or host server02, leaf-9, exit01, spine04
old_conflicted_bonds Previous pair of interfaces in a conflicted bond swp7 swp8, swp3 swp4
new_conflicted_bonds Current pair of interfaces in a conflicted bond swp11 swp12, swp23 swp24
old_state_protodownbond Previous state of the bond protodown, up
new_state_protodownbond Current state of the bond protodown, up
Link message_type Network protocol or service identifier link
hostname User-defined, text-based name for a switch or host server02, leaf-6, exit01, spine7
ifname Software interface name eth0, swp53
LLDP message_type Network protocol or service identifier lldp
hostname User-defined, text-based name for a switch or host server02, leaf41, exit01, spine-5, tor-36
ifname Software interface name eth1, swp12
old_peer_ifname Previous software interface name eth1, swp12, swp27
new_peer_ifname Current software interface name eth1, swp12, swp27
old_peer_hostname Previous user-defined, text-based name for a peer switch or host server02, leaf41, exit01, spine-5, tor-36
new_peer_hostname Current user-defined, text-based name for a peer switch or host server02, leaf41, exit01, spine-5, tor-36
MLAG (CLAG) message_type Network protocol or service identifier clag
hostname User-defined, text-based name for a switch or host server02, leaf-9, exit01, spine04
old_conflicted_bonds Previous pair of interfaces in a conflicted bond swp7 swp8, swp3 swp4
new_conflicted_bonds Current pair of interfaces in a conflicted bond swp11 swp12, swp23 swp24
old_state_protodownbond Previous state of the bond protodown, up
new_state_protodownbond Current state of the bond protodown, up
Node message_type Network protocol or service identifier node
hostname User-defined, text-based name for a switch or host server02, leaf41, exit01, spine-5, tor-36
ntp_state Current state of NTP service in sync, not sync
db_state Current state of DB Add, Update, Del, Dead
NTP message_type Network protocol or service identifier ntp
hostname User-defined, text-based name for a switch or host server02, leaf-9, exit01, spine04
old_state Previous state of service in sync, not sync
new_state Current state of service in sync, not sync
Port message_type Network protocol or service identifier port
hostname User-defined, text-based name for a switch or host server02, leaf13, exit01, spine-8, tor-36
ifname Interface name eth0, swp14
old_speed Previous speed rating of port 10 G, 25 G, 40 G, unknown
old_transreceiver Previous transceiver 40G Base-CR4, 25G Base-CR
old_vendor_name Previous vendor name of installed port module Amphenol, OEM, NVIDIA, Fiberstore, Finisar
old_serial_number Previous serial number of installed port module MT1507VS05177, AVE1823402U, PTN1VH2
old_supported_fec Previous forward error correction (FEC) support status none, Base R, RS
old_advertised_fec Previous FEC advertising state true, false, not reported
old_fec Previous FEC capability none
old_autoneg Previous activation state of auto-negotiation on, off
new_speed Current speed rating of port 10 G, 25 G, 40 G
new_transreceiver Current transceiver 40G Base-CR4, 25G Base-CR
new_vendor_name Current vendor name of installed port module Amphenol, OEM, NVIDIA, Fiberstore, Finisar
new_part_number Current part number of installed port module SFP-H10GB-CU1M, MC3309130-001, 603020003
new_serial_number Current serial number of installed port module MT1507VS05177, AVE1823402U, PTN1VH2
new_supported_fec Current FEC support status none, Base R, RS
new_advertised_fec Current FEC advertising state true, false
new_fec Current FEC capability none
new_autoneg Current activation state of auto-negotiation on, off
Sensors sensor Network protocol or service identifier Fan: fan1, fan-2
Power Supply Unit: psu1, psu2
Temperature: psu1temp1, temp2
hostname User-defined, text-based name for a switch or host server02, leaf-26, exit01, spine2-4
old_state Previous state of a fan, power supply unit, or thermal sensor Fan: ok, absent, bad
PSU: ok, absent, bad
Temp: ok, busted, bad, critical
new_state Current state of a fan, power supply unit, or thermal sensor Fan: ok, absent, bad
PSU: ok, absent, bad
Temp: ok, busted, bad, critical
old_s_state Previous state of a fan or power supply unit. Fan: up, down
PSU: up, down
new_s_state Current state of a fan or power supply unit. Fan: up, down
PSU: up, down
new_s_max Current maximum temperature threshold value Temp: 110
new_s_crit Current critical high temperature threshold value Temp: 85
new_s_lcrit Current critical low temperature threshold value Temp: -25
new_s_min Current minimum temperature threshold value Temp: -50
Services message_type Network protocol or service identifier services
hostname User-defined, text-based name for a switch or host server02, leaf03, exit01, spine-8
name Name of service clagd, lldpd, ssh, ntp, netqd, netq-agent
old_pid Previous process or service identifier 12323, 52941
new_pid Current process or service identifier 12323, 52941
old_status Previous status of service up, down
new_status Current status of service up, down

Examples of Advanced Notification Configurations

The following section lists examples of advanced notification configurations.

Create a Notification for BGP Events from a Selected Switch

This example creates a notification integration with a PagerDuty channel called pd-netq-events. It then creates a rule bgpHostname and a filter called 4bgpSpine for any notifications from spine-01. The result is that any info severity event messages from Spine-01 is filtered to the pd-netq-events channel.

▼ Display example

Create a Notification for Errors on a Given EVPN VNI

This example creates a notification integration with a PagerDuty channel called pd-netq-events. It then creates a rule evpnVni and a filter called 3vni42 for any error messages from VNI 42 on the EVPN overlay network. The result is that any event messages from VNI 42 with a severity level of ‘error’ are filtered to the pd-netq-events channel.

▼ Display example

Create a Notification for Configuration File Changes

This example creates a notification integration with a Slack channel called slk-netq-events. It then creates a rule sysconf and a filter called configChange for any configuration file update messages. The result is that any configuration update messages are filtered to the slk-netq-events channel.

▼ Display example

Create a Notification for When a Service Goes Down

This example creates a notification integration with a Slack channel called slk-netq-events. It then creates a rule svcStatus and a filter called svcDown for any services state messages indicating a service is no longer operational. The result is that any service down messages are filtered to the slk-netq-events channel.

▼ Display example

Create a Filter to Drop Notifications from a Given Interface

This example creates a notification integration with a Slack channel called slk-netq-events. It then creates a rule swp52 and a filter called swp52Drop that drops all notifications for events from interface swp52.

▼ Display example

Create a Notification for a Given Device that Has a Tendency to Overheat (Using Multiple Rules)

This example creates a notification when switch leaf04 has passed over the high temperature threshold. Two rules were necessary to create this notification, one to identify the specific device and one to identify the temperature trigger. NetQ then sends the message to the pd-netq-events channel.

▼ Display example

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