Configure the VRRP Interface
Configure VRRP to provide fast failover of a default router for IPv6 LAN hosts, in order to create a VRRP instance.
Before you begin
Assign an IPv6 address to the interface.
Enable routing globally.
Do not configure RSMLT on the VLAN.
You must specify a link-local address to associate with the virtual router.
About this task
VRRP supports a virtual IPv6 address shared between two or more routers that connect the common subnet to the enterprise network.
VRRP for IPv6 provides a faster switchover to an alternate default router than is possible using the ND protocol.
Perform this procedure to also configure the additional addresses for which the virtual router acts as a backup.
Procedure
Example
Associate a link-local address with the virtual router ID 12:
Switch:1(config-if)#ipv6 vrrp address 12 link-local fe80::1234
Associate a global address with the virtual router ID 12
Swith:1(config-if)#ipv6 vrrp address 12 global 3333::1234/64
Enable VRRP for the interface:
Switch:1(config-if)#ipv6 vrrp 12 enable
Variable Definitions
Use the data in the following table to use the ipv6 vrrp address command.
Variable |
Value |
---|---|
<1-255> |
Specifies the virtual router ID. The virtual router acts as the default router for one or more associated addresses. |
enable |
Enables IPv6 VRRP. The default is disabled. |
global WORD <0–255> |
Specifies a global IPv6 address and mask to associate with the virtual router. |
link-local WORD <0-127> |
Specifies a link-local IPv6 address to associate with the virtual router. |
Use the data in the following table to use the interface command.
Variable |
Value |
---|---|
<1-4059> |
Specifies the VLAN ID in the range of 1 to 4059. By default, VLAN IDs 1 to 4059 are configurable and the system reserves VLAN IDs 4060 to 4094 for internal use. On switches that support the vrf-scaling and spbm-config-mode boot configuration flags, if you enable these flags, the system also reserves VLAN IDs 3500 to 3998. VLAN ID 1 is the default VLAN and you cannot create or delete VLAN ID 1. |
{slot/port[/sub-port][-slot/port[/sub-port]][,...][slot/all][all]} |
Identifies the
slot and port in one of the following formats:
|