Avaya 580 - Manual (Page 382)

12-54 User Guide for the Avaya P580 and P882 Multiservice Switches, v6.1
Chapter 12
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.
The default value is 2
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 allowed time, the switch will
become the designated querier on this interface.
Applicable only if IGMP V2 is used.
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.
Unknown Messages
Received IGMP messages received with an unsupported type.
Number of Current
Groups Number of groups on each interface for which there are
entries in the Group Membership Table.
Table 12-16. IGMP Interface Statistics Web Page Parameters
Parameter Defines the...
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