# Configuring VLAN Snoop

Use the Snoop tab on the VLANs dialog box to enable or disable IGMP snooping on a switch.

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

Prerequisites

- Open one of the supported Web browsers.

- Access the switch.

- Click the Configuration arrowhead to open the navigation tree.

Use the following procedure to open the VLAN Snoop tab:

## Procedure steps

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

2. From the VLAN tree, double-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.
Name | Specifies the name 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