Configuring the Layer 2 Mode IPv4 Querier Address

You can configure an IPv4 querier address for every VLAN. This functionality is available only for multicast snooping.

In releases before FastIron 08.0.50, you cannot specifically configure a querier address per VLAN. Instead, in an IPv4 environment, the device internally attempts to select an address, either a VE address and a loopback address for a router image, or a management port address for a switch image.

Starting with FastIron release 08.0.50, you can configure a Layer 2 mode querier IP address. You can now plan an elected querier location suitable for your network, and use the most suitable querier location. This address can be configured regardless of whether the current multicast snooping mode is set to active or passive. Once the mode changes to active, the configured IP address is used as a querier address. You can configure a different querier IP address for every VLAN.

  1. Enter global configuration mode.
    device# configure terminal
  2. Enter VLAN configuration mode.
    device(config)# vlan 100
  3. Enter the multicast querier-address command followed by the IPv4 address.
    device(config-vlan-100)# multicast querier-address 10.2.2.2

The following example configures an IPv4 address as the multicast querier address for the VLAN.

device# configure terminal
device(config)# vlan 100
device(config-vlan-100)# multicast querier-address 10.2.2.2