vrrp vrid track efm

Function

The vrrp vrid track efm command configures a VRRP group to monitor EFM sessions to implement a rapid master/backup VRRP switchover.

The undo vrrp vrid track efm command disables a VRRP group from monitoring EFM sessions.

By default, a VRRP group does not monitor EFM sessions.

Format

vrrp vrid virtual-router-id track efm interface { interface-type interface-number | interface-name }

undo vrrp vrid virtual-router-id track efm

Parameters

Parameter	Description	Value
virtual-router-id	Specifies the ID of a VRRP group.	The value is an integer ranging from 1 to 255.
interface interface-type interface-number	Specifies the type and number of an interface on which an EFM session is established.	-

Parameter

Description

Value

virtual-router-id

Specifies the ID of a VRRP group.

The value is an integer ranging from 1 to 255.

interface interface-type interface-number

Specifies the type and number of an interface on which an EFM session is established.

Views

100ge sub-interface view, 100GE interface view, 10GE sub-interface view, 10GE interface view, 200GE sub-interface view, 25GE sub-interface view, 25GE interface view, 400GE sub-interface view, 400GE interface view, 40GE sub-interface view, 40GE interface view, 50GE sub-interface view, 50GE interface view, Eth-Trunk sub-interface view, Eth-Trunk interface view, FlexE interface view, GE optical interface view, GE sub-interface view, GE interface view, GE electrical interface view, Global VE sub-interface view, VE sub-interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
vrrp	write

Usage Guidelines

Usage Scenario

You can configure a VRRP group to monitor a Bidirectional Forwarding Detection (BFD) session to implement a rapid master/backup VRRP switchover. However, this method does not apply to some networks or devices that do not support BFD. If a device does not support BFD but supports EFM, you can configure a VRRP group to monitor an EFM session. With such a configuration, if an EFM session goes Down, the EFM module notifies the VRRP group of the fault. After the VRRP group receives the notification, it performs a rapid master/backup VRRP switchover.

Prerequisites

A VRRP group and an EFM session have been created.

Configuration Impact

After the vrrp vrid track efm command is run, the EFM session status affects the VRRP status.

Precautions

Each VRRP group can monitor only one EFM session. When VRRP groups monitor EFM sessions, they can no longer monitor link BFD or CFM sessions.

Example

# Configure a VRRP group to monitor EFM sessions.

<HUAWEI> system-view
[~HUAWEI] efm enable
[*HUAWEI] interface GigabitEthernet 0/1/0
[*HUAWEI-GigabitEthernet0/1/0] efm enable
[*HUAWEI-GigabitEthernet0/1/0] ip address 10.1.1.1 24
[*HUAWEI-GigabitEthernet0/1/0] vrrp vrid 1 virtual-ip 10.1.1.111
[*HUAWEI-GigabitEthernet0/1/0] vrrp vrid 1 track efm interface GigabitEthernet 0/1/0