Ability to Send Router Advertisements Only with Virtual Router Redundancy Protocol's (VRRP) Virtual Link Local Address (LLA)

In Virtual Router Redundancy Protocol (VRRP) IPv6 environment, previously ExtremeXOS sent the router advertisements (RA) using link local address (LLA) configured on VLAN interface from VRRP master, backup, and router advertisements having VRRP‘s link local address from VRRP master. This caused the host to have three default gateways (host gets gateway address from RA). This in turn could cause the host to use the VLAN link local IP address of the VRRP Backup as the gateway, and thus the host would experience connectivity issues.

This new feature introduces a command to avoid this problem by allowing you to specify sending the RAs having only the VRRP‘s LLA from the VRRP master.

Supported Platforms

Summit X450-G2, X460-G2, X670-G2, X770, and ExtremeSwitching X440-G2, X590, X620, X690, X870 series switches.

New CLI Commands

configure {vlan} vlan_name router-discovery {ipv6} vrrp-lla-only on_off

Changed CLI Commands

The following command now shows the status of how router advertisements are sent:

show router-discovery {ipv6} {vlan vlan_name}