Chapter 1 VRRP Configuration Commands

virtual-router-id: VRRP standby group number, in the range 1 to 255.

vrrp vrid virtual-router-id authentication-mode { md5 | simple } key

undo vrrp vrid virtual-router-id authentication-mode

View

Interface view

Parameters

simple: Plain text authentication mode.

md5: Authentication header (AH) authentication using the MD5 algorithm.

key: Authentication key, case sensitive.

l When simple authentication applies, the authentication key is in plain text with a length of 1 to 8 characters.

l When md5 authentication applies, the authentication key is in MD5 cipher text or in plain text and the length of the key depends on its input format. If the key is input in plain text, its length is 1 to 8 characters, such as 1234567; if the key is input in cipher text, its length must be 24 characters, such as _(TT8F]Y\5SQ=^Q`MAF4<1!!.

Description

Use the vrrp vrid authentication-mode command to configure authentication mode and authentication key for the VRRP standby groups to send and receive VRRP packets.

Use the undo vrrp vrid authentication-mode command to restore the default.

By default, authentication is disabled.

Note that:

l Before executing the command, create a standby group on an interface and configure the virtual IP address of the standby group.

l You may configure different authentication types and authentication keys for the standby groups on an interface. However, the members of the same standby group must use the same authentication mode and authentication key.

Examples

# Set the authentication mode and authentication key for VRRP standby group 1 on interface VLAN-interface 2 to send and receive VRRP packets.

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.1

[Sysname-Vlan-interface2] vrrp vrid 1 authentication-mode simple Sysname

1.1.5 vrrp method

Syntax

vrrp method { real-mac | virtual-mac }

undo vrrp method

View

System view

Parameters

real-mac: Associates the real MAC address of the interface with the virtual IP address of the standby group.

virtual-mac: Associates the virtual MAC address of the switch with the virtual IP address of the standby group.

Description

Use the vrrp method command to set the mappings between the virtual IP addresses and the MAC addresses of the standby groups.

Use the undo vrrp method command to restore the default mapping.

By default, the virtual MAC address of the standby group is associated with the virtual IP address.

You must configure the mapping between the virtual IP address and the MAC address before configuring a standby group. Otherwise, your configuration will fail.

Examples

# Associate the virtual IP address of the standby group with the real MAC address of the routing interface.

<Sysname> system-view

[Sysname] vrrp method real-mac

1.1.6 vrrp ping-enable

Syntax

vrrp ping-enable

undo vrrp ping-enable

View

System view

Parameters

None

Description

Use the vrrp ping-enable command to enable users to ping the virtual IP addresses of standby groups.

Use the undo vrrp ping-enable command to disable the virtual IP addresses of standby groups from being pinged.

By default, the virtual IP addresses of standby groups can be pinged.

Perform this configuration before configuring a standby group.

Examples

# Enable users to ping the virtual IP addresses of standby groups.

<Sysname> system-view

[Sysname] vrrp ping-enable

1.1.7 vrrp un-check ttl

Syntax

vrrp un-check ttl

undo vrrp un-check ttl

View

Interface view

Parameters

None

Description

Use the vrrp un-check ttl command to disable TTL check on VRRP packets.

Use the undo vrrp un-check ttl command to enable TTL check on VRRP packets.

By default, TTL check on VRRP packets is enabled.

Examples

# Disable TTL check on VRRP packets.

<Sysname> system-view

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] vrrp un-check ttl

1.1.8 vrrp vrid preempt-mode

vrrp vrid virtual-router-id preempt-mode [ timer delay delay-value ]

undo vrrp vrid virtual-router-id preempt-mode [ timer delay ]

View

Interface view

Parameters

virtual-router-id: Virtual router ID or VRRP standby group number, in the range 1 to 255.

timer delay delay-value: Sets preemption delay. The delay-value argument is in the range of 0 to 255 seconds and defaults to 0 seconds.

Use the vrrp vrid preempt-mode command to enable preemption on the switch and configure its preemption delay in the specified standby group.

Use the undo vrrp vrid preempt-mode command to disable preemption on the switch in the specified standby group.

Use the undo vrrp vrid preempt-mode timer delay command to restore the default preemption delay, that is, zero seconds.

The default mode is immediate preemption without delay.

On an instable network, the standby group member in the backup state may not normally receive the packets from the master due to network congestion, resulting in frequent master/backup state transition of the standby group members. Preemption delay is introduced to solve this problem. With a preemption delay set, if the backup does not receive the packet from the master duly, it waits for a period to see whether it can receive any packet from the master. If the specified period elapses but it still receives no packet from the master, it becomes the master.

Note that before executing the command, you need to create a standby group on an interface and configure the virtual IP address of the standby group.

Examples

# Enable preemption on the router in VRRP standby group 1, and set the preemption delay to five seconds.

<Sysname> system-view

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] vrrp vrid 1 preempt-mode timer delay 5

1.1.9 vrrp vrid priority

vrrp vrid virtual-router-id priority priority-value

undo vrrp vrid virtual-router-id priority

View

Interface view

Parameters

virtual-router-id: VRRP standby group number, in the range 1 to 255.

priority-value: Priority value of the router in the specified standby group, in the range 1 to 254, with a higher number indicating a higher priority.

# Set the priority of standby group 1 on interface VLAN-interface 2 to 150.

Use the vrrp vrid priority command to configure the priority of the switch in the specified standby group.

Use the undo vrrp vrid priority command to restore the default.

By default, the priority of a switch in a standby group is 100.

l Before executing the command, create a standby group on an interface and configure the virtual IP address of the standby group.

l In VRRP, the role that a switch plays in a standby group depends on its priority. A higher priority means that the switch is more likely to become the master. Note that priority 0 is reserved for special use and 255 for the IP address owner.

l If the switch is the IP address owner, its priority is always 255. Therefore, it will be the master so long as it is functioning normally.

Examples

<Sysname> system-view

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.1

[Sysname-Vlan-interface2] vrrp vrid 1 priority 150

1.1.10 vrrp vrid timer advertise

vrrp vrid virtual-router-id timer advertise adver-interval

undo vrrp vrid virtual-router-id timer advertise

View

Interface view

Parameters

virtual-router-id: VRRP standby group number, in the range 1 to 255.

adver-interval: Interval at which the master in the specified standby group sends VRRP advertisements. It ranges from 1 to 255 seconds.

# Set the master in standby group 1 to send VRRP advertisements at intervals of five seconds.

Use the vrrp vrid timer advertise command to configure the Adver_Timer of the specified standby group.

Use the undo vrrp vrid timer advertise command to restore the default.

By default the Adver_Timer is 1 second.

The Adver_Timer controls the interval at which the master sends VRRP packets.

Note that:

l Before executing the command, create a standby group on an interface and configure the virtual IP address of the standby group.

l Routers in the same VRRP standby group must use the same Adver_Timer setting.

Examples

<Sysname> system-view

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.1

[Sysname-Vlan-interface2] vrrp vrid 1 timer advertise 5

1.1.11 vrrp vrid track

Syntax

vrrp vrid virtual-router-id track track-entry-number [ reduced priority-reduced | switchover ]

undo vrrp vrid virtual-router-id track [ track-entry-number ]

View

Interface view

Parameters

virtual-router-id: VRRP group number, in the range 1 to 255.

track track-entry-number: Specifies a Track object to be monitored by its number. track-entry-number ranges from 1 to 1024.

reduced priority-reduced: Specifies the value by which the priority decreases. priority-reduced ranges from 1 to 255 and defaults to 10.

switchover: Switchover mode of a router. If the status of the monitored Track object turns to negative and the router is a backup in the VRRP group, it turns to the master immediately.

Description

Use the vrrp vrid track command to specify the Track object to be monitored. If the status of the monitored Track object changes to negative, the priority of the router decreases by a specified value or the router immediately switches to the master.

Use the undo vrrp vrid track command to cancel the specified Track object.

By default, no Track object is specified to be monitored.

Note that:

l Before executing the command, create a VRRP group on an interface and configure the virtual IP address of the VRRP group.

l When the router is the IP address owner, you cannot perform the configuration.

l When the status of the monitored Track object turns from negative to positive, the corresponding router restores its priority automatically.

l The Track object specified in this command can be nonexistent. You can use the vrrp vrid track command to specify a Track object, and then create the Track object using the track command.

Examples

# Configure to monitor Track object 1 on VLAN-interface 2, making the priority of VRRP group 1 on VLAN-interface 2 decrease by 50 when Track object 1 turns to negative.

<Sysname> system-view

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.1

[Sysname-Vlan-interface2] vrrp vrid 1 track 1 reduced 50

1.1.12 vrrp vrid track interface

vrrp vrid virtual-router-id track interface interface-type interface-number [ reduced priority-reduced ]

undo vrrp vrid virtual-router-id track [ interface interface-type interface-number ]

View

Interface view

Parameters

virtual-router-id: VRRP group number, in the range 1 to 255.

interface interface-type interface-number: Specifies an interface to be tracked by its type and number.

reduced priority-reduced: Value by which the priority decrements. priority-reduced ranges from 1 to 255 and defaults to 10.

Use the vrrp vrid track interface command to configure to track the specified interface.

Use the undo vrrp vrid track interface command to disable tracking the specified interface.

By default, no interface is tracked.

Note that:

l Before executing the command, create a VRRP group on an interface and configure the virtual IP address of the VRRP group.

l When the router is the owner of the IP address, you cannot perform the configuration.

l When the status of the tracked interface turns from down to up, the corresponding router restores its priority automatically.

l The interface specified in this command can be a VLAN interface.

Examples

# On interface VLAN-interface 2, set the interface to be tracked as VLAN-interface 1, making the priority of VRRP group 1 on interface VLAN-interface 2 decrement by 50 when VLAN-interface 2 goes down.

<Sysname> system-view

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.1

[Sysname-Vlan-interface2] vrrp vrid 1 track interface vlan-interface 1 reduced 50

1.1.13 vrrp vrid virtual-ip

vrrp vrid virtual-router-id virtual-ip virtual-address

undo vrrp vrid virtual-router-id [ virtual-ip virtual-address ]

View

Interface view

Parameters

virtual-router-id: VRRP standby group number, in the range 1 to 255.

virtual-address: Virtual IP address.

Use the vrrp vrid virtual-ip command to create a standby group the first time that you add a virtual IP address or add a virtual IP address to it after that.

Use the undo vrrp vrid virtual-router-id command to remove a standby group.

Use the undo vrrp vrid virtual-router-id virtual-ip virtual-address command to remove a virtual IP address from a standby group.

By default, no standby group is created.

Note that:

l The system removes a standby group after you delete all the virtual IP addresses in it.

l The virtual IP address of the standby group cannot be 0.0.0.0, 255.255.255.255, loopback address, non A/B/C address and other illegal IP addresses such as 0.0.0.1.

l Only when the configured virtual IP address and the interface IP address belong to the same segment and are legal host addresses can the standby group operate normally. If they are not in the same network segment, or the configured IP address is the network address or network broadcast address of the network segment that the interface IP address belongs to, though you can perform the configuration successfully, the state of the standby group is always Initialize, that is, VRRP does not take effect in this case.

Examples

# Create standby group 1 and set its virtual IP address to 10.10.10.10.

<Sysname> system-view

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] vrrp vrid 1 virtual-ip 10.10.10.10

# Add virtual IP address 10.10.10.11 to standby group 1.

[Sysname-Vlan-interface2] vrrp vrid 1 virtual-ip 10.10.10.11

1.2 VRRP Configuration Commands for IPv6

1.2.1 display vrrp ipv6

Syntax

display vrrp ipv6 [ verbose ] [ interface interface-type interface-number [ vrid virtual-router-id ] ]

View

Any view

Parameters

verbose: Displays detailed state information of VRRP.

interface interface-type interface-number: Displays VRRP state information of the specified interface. interface-type interface-number specifies an interface by its type and number.

vrid virtual-router-id: Displays state information of the specified VRRP group. virtual-router-id specifies a standby group by its group number, in the range 1 to 255.

Description

Use the display vrrp ipv6 command to display the state information of VRRP for IPv6.

If you do not specify verbose, only the brief state information of VRRP is displayed.

Examples

# Display brief information about all VRRP standby groups on the device for IPv6.

<Sysname> display vrrp ipv6

IPv6 Standby Information:

Run Method : VIRTUAL-MAC

Virtual IP Ping : Enable

The total number of the virtual routers: 1

Interface VRID State Run Adver. Auth Virtual

Pri Time Type IP

---------------------------------------------------------------------

Vlan100 1 Master 100 100 NONE FE80::1

# Display detailed information about all standby groups on the device.

<Sysname> display vrrp ipv6 verbose

IPv6 Standby Information:

Run Method : VIRTUAL-MAC

Virtual IP Ping : Enable

Interface : Vlan-interface100

VRID : 1 Adver. Timer : 100

Admin Status : UP State : Master

Config Pri : 100 Run Pri : 100

Preempt Mode : YES Delay Time : 0

Auth Type : NONE

Track IF : Vlan-interface200 Pri Reduced : 10

Virtual IP : FE80::1

Virtual MAC : 0000-5e00-0201

Master IP : FE80::20F:E2FF:FE49:8060

Table 1-3 Description on the fields of the display vrrp ipv6 command

Field	Description
Run Method	Current VRRP running mode, real MAC or virtual MAC
Virtual IP Ping	Whether you can ping the virtual IPv6 address
Interface	Interface to which the standby group belongs
VRID	Number of the standby group
Adver. Timer	VRRP advertisement interval in centiseconds
Admin Status	Administrative state: UP or DOWN
State	Status of the switch in the standby group, master, backup, or initialize
Config Pri	Configured priority
Run Pri	Running priority
Preempt Mode	Preemption mode
Delay Time	Preemption delay, not displayed when the device works in non-preemption mode.
Auth Type	Authentication type
Track IF	The interface to be tracked. It is displayed only after the execution of the vrrp ipv6 vrid track command.
Pri Reduced	The priority value that is reduced when the interface being tracked is down. It is displayed only after the execution of the vrrp ipv6 vrid track command.
Virtual IP	Virtual IPv6 addresses of the standby group
Virtual MAC	Virtual MAC address corresponding to the virtual IPv6 address of the standby group. It is displayed only when the switch is in the state of master.
Master IP	Primary IPv6 address of the interface to which the switch in the state of master belongs

1.2.2 display vrrp ipv6 statistics

Syntax

display vrrp ipv6 statistics [ interface interface-type interface-number [ vrid virtual-router-id ] ]

View

Any view

Parameters

interface interface-type interface-number: Displays VRRP statistics information of the specified interface. interface-type interface-number specifies an interface by its type and number.

vrid virtual-router-id: Displays statistics information of the specified VRRP group. virtual-router-id specifies a standby group by its group number, in the range 1 to 255.

Description

Use the display vrrp ipv6 statistics command to display statistics about VRRP for IPv6.

Examples

# Display the statistics about all standby groups for IPv6.

<Sysname> display vrrp ipv6 statistics

Interface : Vlan-interface100

VRID : 80

CheckSum Errors : 0 Version Errors : 0

Invalid Type Pkts Rcvd : 0 Advertisement Interval Errors : 0

Hop Limit Errors : 0 Auth Failures : 0

Invalid Auth Type : 0 Auth Type Mismatch : 0

Packet Length Errors : 0 Address List Errors : 0

Become Master : 1 Priority Zero Pkts Rcvd : 0

Advertise Rcvd : 0 Priority Zero Pkts Sent : 0

Advertise Sent : 20

Interface : Vlan-interface200

VRID : 10

CheckSum Errors : 0 Version Errors : 0

Invalid Type Pkts Rcvd : 0 Advertisement Interval Errors : 0

Hop Limit Errors : 0 Auth Failures : 0

Invalid Auth Type : 0 Auth Type Mismatch : 0

Packet Length Errors : 0 Address List Errors : 0

Become Master : 1 Priority Zero Pkts Rcvd : 0

Advertise Rcvd : 0 Priority Zero Pkts Sent : 0

Advertise Sent : 30

Global statistics

CheckSum Errors : 0

Version Errors : 0

VRID Errors : 1439

Table 1-4 Description on the fields of the display vrrp ipv6 statistics command

Field	Description
Interface	Interface to which the standby group belongs
VRID	Number of the standby group
CheckSum Errors	Number of packets with checksum errors
Version Errors	Number of packets with version errors
Invalid Type Pkts Rcvd	Number of packets with incorrect packet type
Advertisement Interval Errors	Number of packets with advertisement interval errors
Hop Limit Errors	Number of packets with hop limit errors
Auth Failures	Number of packets with authentication failures
Invalid Auth Type	Number of packets with authentication failures due to invalid authentication types
Auth Type Mismatch	Number of packets with authentication failures due to mismatching authentication types
Packet Length Errors	Number of packets with VRRP packet length errors
Address List Errors	Number of packets with virtual IPv6 address list errors
Become Master	Number of times that the switch worked as the master
Priority Zero Pkts Rcvd	Number of received advertisements with the priority of 0
Advertise Rcvd	Number of received advertisements
Advertise Sent	Number of advertisements sent
Global statistics	Statistics about all standby groups
CheckSum Errors	Total number of packets with checksum errors
Version Errors	Total number of packets with version errors
VRID Errors	Total number of packets with VRID errors

1.2.3 reset vrrp ipv6 statistics

Syntax

reset vrrp ipv6 statistics [ interface interface-type interface-number [ vrid virtual-router-id ] ]

View

User view

Parameters

interface interface-type interface-number: Clears VRRP statistics of a specific interface. interface-type interface-number specifies an interface by its type and number.

vrid virtual-router-id: Clears VRRP statistics of the specified standby group. virtual-router-id specifies a standby group by its group number, in the range 1 to 255.

Description

Use the reset vrrp ipv6 statistics command to clear VRRP statistics.

Examples

# Clear the statistics about all the standby groups on the device.

<Sysname> reset vrrp ipv6 statistics

1.2.4 vrrp ipv6 vrid authentication-mode

Syntax

vrrp ipv6 vrid virtual-router-id authentication-mode simple key

undo vrrp ipv6 vrid virtual-router-id authentication-mode

View

Interface view

Parameters

virtual-router-id: VRRP standby group number, in the range 1 to 255.

simple: Sets the authentication mode to plain text authentication.

key: Authentication key of 1 to 8 case-sensitive characters in plain text.

Description

Use the vrrp ipv6 vrid virtual-router-id authentication-mode simple key command to configure authentication mode and authentication key for the VRRP standby groups to send and receive VRRP packets.

Use the undo vrrp ipv6 vrid virtual-router-id authentication-mode command to restore the default.

By default, authentication is disabled.

Note that:

l Before executing the command, create a standby group on an interface and configure the virtual IP address of the standby group.

Examples

# Set the authentication mode and authentication key for VRRP standby group 10 on interface VLAN-interface 2 to send and receive VRRP packets.

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] vrrp ipv6 vrid 10 virtual-ip fe80::2 link-local

[Sysname-Vlan-interface2] vrrp ipv6 vrid 10 authentication-mode simple test

1.2.5 vrrp ipv6 method

Syntax

vrrp ipv6 method { real-mac | virtual-mac }

undo vrrp ipv6 method

View

System view

Parameters

real-mac: Associates the real MAC address of the interface with the virtual IPv6 address of the standby group.

virtual-mac: Associates the virtual MAC address of the router with the virtual IPv6 address of the standby group.

Description

Use the vrrp ipv6 method command to set the mappings between the virtual IPv6 addresses and the MAC addresses of the standby groups.

Use the undo vrrp ipv6 method command to restore the default mapping.

By default, the virtual MAC address of the standby group is associated with the virtual IP address.

Configure the mapping between the virtual IPv6 address and the MAC address before configuring a standby group. Otherwise, your configuration will fail.

Examples

# Associate the virtual IP address of the standby group with the real MAC address of the routing interface.

<Sysname> system-view

[Sysname] vrrp ipv6 method real-mac

1.2.6 vrrp ipv6 ping-enable

Syntax

vrrp ipv6 ping-enable

undo vrrp ipv6 ping-enable

View

System view

Parameters

None

Description

Use the vrrp ipv6 ping-enable command to enable users to ping the virtual IPv6 addresses of standby groups.

Use the undo vrrp ipv6 ping-enable command to disable the virtual IPv6 addresses of standby groups from being pinged.

By default, the virtual IP addresses of standby groups can be pinged.

Perform this configuration before configuring a standby group.

Examples

# Enable users to ping the virtual IPv6 addresses of standby groups.

<Sysname> system-view

[Sysname] vrrp ipv6 ping-enable

1.2.7 vrrp ipv6 vrid preempt-mode

Syntax

vrrp ipv6 vrid virtual-router-id preempt-mode [ timer delay delay-value ]

undo vrrp ipv6 vrid virtual-router-id preempt-mode [ timer delay ]

View

Interface view

Parameters

virtual-router-id: Virtual router ID or VRRP standby group number, in the range 1 to 255.

timer delay delay-value: Sets preemption delay. The delay-value argument is in the range of 0 to 255 seconds and defaults to 0 seconds.

Description

Use the vrrp ipv6 vrid preempt-mode command to configure preemption on the switch and configure its preemption delay in the specified standby group.

Use the undo vrrp ipv6 vrid preempt-mode command to disable preemption on the switch in the specified standby group.

Use the undo vrrp ipv6 vrid preempt-mode timer delay command to restore the default preemption delay, that is, zero seconds.

The default mode is immediate preemption without delay.

If you set the router in the standby group to work in non-preemption mode, the delay period changes to zero seconds automatically.

Note that before executing the command, you need to create a standby group on an interface and configure the virtual IPv6 address of the standby group.

Examples

# Enable preemption on the router in VRRP standby group 80 and set the preemption delay to five seconds.

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] vrrp ipv6 vrid 80 virtual-ip fe80::2 link-local

[Sysname-Vlan-interface2] vrrp ipv6 vrid 80 preempt-mode timer delay 5

1.2.8 vrrp ipv6 vrid priority

Syntax

vrrp ipv6 vrid virtual-router-id priority priority-value

undo vrrp ipv6 vrid virtual-router-id priority

View

Interface view

Parameters

virtual-router-id: VRRP standby group number, in the range 1 to 255.

priority-value: Priority value of the router in the specified standby group, in the range 1 to 254, with a higher number indicating a higher priority.

Description

Use the vrrp ipv6 vrid priority command to configure the priority of the switch in the specified standby group.

Use the undo vrrp ipv6 vrid priority command to restore the default.

By default, the priority of a switch in a standby group is 100.

l Before executing the command, create a standby group on an interface and configure the virtual IPv6 address of the standby group.

l If the switch is the IP address owner, its priority is always 255. Therefore, it will be the master so long as it is functioning normally.

Examples

# Set the priority of standby group 1 on interface VLAN-interface 2 to 150.

<Sysname> system-view

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] vrrp ipv6 vrid 1 virtual-ip fe80::2 link-local

[Sysname-Vlan-interface2] vrrp ipv6 vrid 1 priority 150

1.2.9 vrrp ipv6 vrid timer advertise

Syntax

vrrp ipv6 vrid virtual-router-id timer advertise adver-interval

undo vrrp ipv6 vrid virtual-router-id timer advertise

View

Interface view

Parameters

virtual-router-id: VRRP standby group number, in the range 1 to 255.

adver-interval: Interval at which the master in the specified standby group sends VRRP advertisements. It ranges from 100 to 4095 centiseconds.

Description

Use the vrrp ipv6 vrid timer advertise command to configure the Adver_Timer of the specified standby group.

Use the undo vrrp ipv6 vrid timer advertise command to restore the default.

By default the Adver_Timer is 100 centiseconds.

The Adver_Timer controls the interval at which the master sends VRRP packets.

l Before executing the command, create a standby group on an interface and configure the virtual IPv6 address of the standby group.

l Routers in the same VRRP standby group must use the same Adver_Timer setting.

Examples

# Set the master in standby group 1 to send VRRP advertisements at intervals of 500 centiseconds.

[Sysname] interface vlan-interface 2

[Sysname-Vlan-interface2] vrrp ipv6 vrid 1 virtual-ip fe80::2 link-local

[Sysname-Vlan-interface2] vrrp ipv6 vrid 1 timer advertise 500

1.2.10 vrrp ipv6 vrid track

Syntax

vrrp ipv6 vrid virtual-router-id track interface interface-type interface-number [ reduced priority-reduced ]

undo vrrp ipv6 vrid virtual-router-id track [ interface interface-type interface-number ]

View

Interface view

Parameters

virtual-router-id: VRRP standby group number, in the range 1 to 255.

interface interface-type interface-number: Specifies an interface by its type and number.

reduced priority-reduced: Value by which the priority decrements. priority-reduced ranges from 1 to 255 and defaults to 10.

Description

Use the vrrp ipv6 vrid track command to configure to track the specified interface.

Use the undo vrrp ipv6 vrid track command to disable tracking the specified interface.

By default, no interface is being tracked.

Note that:

l Before executing the command, create a standby group on an interface and configure the virtual IPv6 address of the standby group.

l When the switch is the owner of the IP address, you cannot perform the configuration.

l When the status of the tracked interface turns from down to up, the corresponding switch restores its priority automatically.

Examples

# On interface VLAN-interface 2, set the interface to be tracked as VLAN-interface 1, making the priority of standby group 1 on interface VLAN-interface 2 decrement by 50 when VLAN-interface 1 goes down.