Avaya Cajun P882 User Manual

Page 275

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Cajun P550/P880/P882 Switch User Guide

Configuring IP Routing

9-51

3. Refer to Table 9-16 fro an explanation of the IGMP Interface

Statistics dialog box parameters:

Table 9-16. IGMP Interface Statistical Dialog Box Parameters

Parameter

Defines the...

IGMP Interface

IP interface for these statistics.

IP Address

IP address associated with the interface.

IP Address Mask

Subnet mask associated with each listed interface.

State

Current state of the interface. For example, if the interface
is enabled and operating properly, UP is displayed.

IGMP Version

Version of IGMP enabled on each interface.

This Router is Group
Membership Querier

Router that was configured or elected to be the designated
group membership querier. The switch queries hosts
on each interface only when it is acting as the designated
querier on that interface.

Robustness Variable

Setting for the expected packet loss on a subnet. If a
subnet is expected to have more packet loss, the
Robustness Variable should be increased. The Robustness
Variable must not be set to 0 and should not be set to 1.

Next Query Request
(sec)

Remaining amount of time (in seconds) before the next
group membership query is transmitted.

Neighbor Querier
Timeout (sec)

Amount of time (in seconds) remaining before this
interface assumes the role of designated querier. This
timer is reset to the value entered for the Neighbor
Querier Timeout Interval each time an IGMP query is
received from a neighbor with a lower IP address. If no
response is received in the allotted time, the query will
timeout and the Version 2.0 querier will begin.

Group Join Requests
Received

Number of new groups on this interface.

Group Leave Requests
Received

Number of leave requests received on this interface.

Group Reports
Received

Number of reports received on this interface in response
to a group membership query. Hosts respond to a Query
by generating Host Membership Reports reporting each
host group to which they belong on the network interface
from which the Query was received.

Query Messages
Received

Number of query messages received from other multicast
routers.

Query Messages
Transmitted

Number of query messages sent by a multicast router.
These messages are sent to discover which host groups
have members on their attached local networks. Queries
are addressed to the all-hosts group (address 224.0.0.1),
and carry an IP time-to-live of 1.

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