IP and MAC Anycast

The IP and MAC anycast feature enables you to configure the anycast gateway MAC to be used by VLANs that enable IP anycast. Using this feature, you can set the same IP address and MAC address on all edge technology devices. This allows seamless IP mobility in the network for edge devices.

Important

Demo Feature: The IP and MAC Anycast feature is a demonstration feature that is provided for testing purposes. Demonstration features are for lab use only and are not for use in a production environment. Please work with your Extreme Networks sales team to request a demonstration.

Note

IP and MAC anycast should be used only with VXLAN tenant VLANs. IP and MAC anycast should not be used with any protocols other than MLAG, since it might cause MAC flaps.

Note

Switching through a VXLAN tunnel to a remote L3 Anycast gateway is not supported.

To configure IP/MAC anycast:

Enable IP anycast on the desired VLANs by using the following command:
enable ip anycast {vlan} vlan_name
Specify the anycast gateway MAC address that is used by VLANs that enable IP anycast by using the following command:
configure ip anycast mac [none | mac]

To view IP and MAC anycast information:

For IP anycast status (enabled or disabled), use the following command:
show vlan {virtual-router vr-name}
For IP anycast MAC information, use the following command:
show ipconfig {ipv4} {vlan vlan_name}
For IPv6 anycast MAC information, use the following command:
show ipconfig ipv6 {vlan vlan_name | tunnel tunnel_name}