# Configuring VLAN Snoop

Use this procedure to enable or disable IGMP snooping on a switch.

For information on the IGMP snooping feature, refer to Avaya Ethernet Routing Switch 5000 Series Configuration — IP Routing Protocols, NN47200-503.

## Procedure steps

1. From the navigation tree, double-click VLAN.

2. From the VLAN tree, click VLANs.

3. Select the Snoop tab.

Variable definitions

The following table outlines the parameters of the Snoop tab.

Table 1. VLAN Snoop tab parameters
Variable | Value
--- | ---
Id | Specifies the ID of the VLAN.
ReportPorxyEnable | A flag to note whether IGMP Report Proxy is enabled on this VLAN.
Enable | A flag to note whether IGMP Snooping is enabled on this VLAN.
Robustness | Allows tuning for the expected packet loss on a subnet. If a subnet is expected to be lossy, the Robustness variable may be increased. IGMP is robust to (Robustness - 1) packet losses.
QueryInterval | Specifies the interval (in seconds) between IGMP Host-Query packets transmitted on this interface.
MRouterPorts | Specifies the set of ports in this VLAN that provide connectivity to an IP Multicast router.
Ver1MRouterPorts | Specifies the version 1 ports in this VLAN that provide connectivity to an IP Multicast router.
Ver2RouterPorts | Specifies the version 2 ports in this VLAN that provide connectivity to an IP Multicast router.
ActiveMRouterPorts | Specifies the active ports.
ActiveQuerier | Specifies the IP address of multicast querier router
QuerierPort | Specifies the port on which the multicast querier router was heard.
MRouterExpiration | Specifies the multicast querier router aging time out