Lucent Technologies P550 User Manual
Page 155
Configuring IP Routing (Layer 3)
Cajun P550/P220 Switch Operation Guide
7-29
2. Click REFRESH to view the latest interface statistics.
Or
Click
CLEAR to reset all statistics to zero.
3. Use Table 7-16 to review the IGMP interface statistics:
Table 7-16. IGMP Interface Statistical 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 was
enabled and operating properly, you should see a state of UP
listed in this field.
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
Tuning 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 in
(sec)
Remaining amount of time (in seconds) before the next group
membership query is transmitted.
Neighbor Querier
Timeout in (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 that have been joined 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.