configure vrrp vlan vrid accept-mode

configure vrrp vlan vlan_name vrid vridval accept-mode [on | off]

Description

Configures a backup VRRP router instance to accept or reject packets addressed to the IP address owner when operating as the VRRP master.

Additionally, this command provides capability for switches to configure the VRRP virtual IP as NTP server address.

Syntax Description

`vlan_name`	Specifies the name of a VRRP VLAN.
`vridval`	Specifies the VRID of a VRRP instance. To display the configured VRRP router instances, enter the show vrrp command.
on	Specifies that the VRRP instance is to accept packets addressed to the IP address owner.
off	Specifies that the VRRP instance not accept packets addressed to the IP address owner. Note: Ping packets are accepted, regardless of the configuration for this command.

Default

Off.

Usage Guidelines

When a backup VRRP router operates as master, it accepts VRRP traffic and routes traffic. The backup router in master mode also accepts ping packets and IPv6 neighbor solicitations and advertisements. However, because the backup router is not the IP address owner, the default configuration rejects all other traffic addressed to the IP address owner.

If your network requires that a backup VRRP router in master mode accept all traffic addressed to the IP address owner, use this command to configure accept-mode on.

In the ExtremeXOS 15.3 release, NTP VRRP Virtual IP support is added. This feature allows you to configure the VRRP virtual IP as NTP server address. The NTP server when configured on the VRRP master will listen on the physical and virtual IP address for NTP clients. For this feature to work correctly, you need to enable accept mode in VRRP. Enabling accept mode allows the switch to process non-ping packets that have a destination IP set to the virtual IP address.

Example

The following example configures a backup VRRP router in master mode to accept packets addressed to the IP address owner:

configure vrrp vlan vlan-1 vrid 1 accept-mode on

History

This command was first available in ExtremeXOS 12.7.

NTP VRRP Virtual IP support was added in ExtremXOS 15.3.

Platform Availability

This command is available on platforms that support the appropriate license. For complete information about software licensing, including how to obtain and upgrade your license and which licenses support the VRRP feature, see the Feature License Requirements document.

For NTP VRRP Virtual IP support, Summit switches configured as NTP clients need to have the following bootrom version: