IGMP Interface Table

The IGMP Interface Table displays the following fields:

• IfIndex — Identifies the port number for which IGMP is enabled.

• Query Interval — Indicates the amount of time in seconds that query messages are transmitted. The Query Interval value adjusts the amount of IGMP messages sent on sub-networks. The larger value, the less often IGMP messages are sent. The default value is 125 seconds.

• Version — Indicates the current version of IGMP. The default version is 2.

Note: All routers on a LAN must be configured to the same IGMP version.

• Querier — Indicates the IGMP Querier on the IP subnet. The multicast router with the lowest IP address is the multicast querier.

• Query Max Response Time — Indicates the maximum response time for advertising IGMP queries. Query Max Response time adjusts the amount of traffic on a per sub-network basis. Varying the response time effects bursts on network traffic. The higher the value, the longer period between host responses. The default value is 10 seconds.

Note: The Query Max Response Time must be less than the Query Interval.

• Querier Up Time — Indicates the amount of time in ticks since the querier was last changed.

• Query Expiry Time — Indicates the amount of time in ticks before the Querier Present timer expires. If the local system is the Querier the value is 0.

• Wrong Version Queries — Indicates the amount of IGMP queries received that do not match the IGMP interface version. If queries are received with a different version the Wrong Version Queries indicates a configuration error.

• Join — Indicates the number of times a group membership has been added to the Cache Table.

• Proxy ifIndex — Indicates that IGMP is performed by proxy. IGMP Host Membership reports are sent to the device. A value of 0 indicates that IGMP is not being performed by proxy. The default is 0.

• Groups — The number of current port entries in the Cache Table.

• Robustness —Tunes packet loss on a subnet. The robustness is increased to avoid packet loss on a subnet. Possible values are 1-255. The default value is 0.

• Last Member Query Interval — Modifies the leave latency of the network. A lower value reduces the amount of time needed to detect the loss of the last group member. The possible values are 0-255. The default value is 10.

Add IGMP Interface Table Entry

To add an IGMP Interface Table entry:

1. Click  . The IGMP Interface Table Insert window is displayed.

2. Complete the fields and click  . The IGMP Interface Table window is displayed.

3. Click  . When the Status field displays “Finished!”, the entry is confirmed as created.

Edit IGMP Interface Table Entry

To edit an IGMP Interface Table entry:

1. Click  . The IGMP Interface Table Edit window is displayed.

2. Edit the required table entry fields and click  . The IGMP Interface Table window is displayed.

3. Click  . When the Status field displays “Finished!”, the fields are confirmed as modified.

Delete IGMP Interface Table Entry

To delete an IGMP Interface  Table entry:

1. Select the entry to delete.

2. Click  .

3. Click  . When the Status field displays “Finished!”, the entry is confirmed as deleted.