Install guide

92 show ip igmp Software Reference
Table 5: Parameters in output of the show ip igmp command
Parameter Meaning
General information about IGMP
Status Whether IGMP is enabled.
Default Query Interval The default interval at which Host Membership Queries
are sent.
Default Timeout Interval The default interval after which entries are removed
from the group database when no Host Membership
Report is received.
Last Member Query Interval Max Response Time inserted into Group-Specific Queries
sent in response to Leave Group messages, and the
amount of time between Group-Specific Query
messages.
Last Member Query Count The number of Group-Specific Queries sent before the
switch assumes there are no local members.
Robustness Variable IGMP is robust to (Robustness Variable-1) packet losses.
Query Response Interval The Max Response Time (in 1/10 secs) inserted into the
periodic General Queries.
Disabled All-groups ports A list of ports that are disabled from acting as an all-
groups port.
Information about each IP interface
Interface Name The name of an IP interface.
Status Whether IGMP is enabled on the interface.
Other Querier timeout The time that remains before a multicast router decides
that there is no longer another multicast router that
should be the querier.
IGMP Proxy The status of IGMP Proxy on this interface; one of “Off”,
“Upstream”, or “Downstream”.
General Query Reception
Timeout
The maximum expected time interval, in seconds,
between successive IGMP general query messages
arriving on the interface, or “none” if there is no limit. If
a general query message is not received within the time
interval, a log message and an SNMP trap are generated.
Group List A list of multicast group memberships for this interface,
or:
• “No group memberships”, if the interface has no
multicast group members
• “No matching group memberships”, if the interface
has no multicast group members matching the
destination address
Group The group multicast address.
Last Adv. The last host to advertise the membership report, or
“Static association” for static multicast groups.
Refresh time The time in seconds until the membership group is
deleted if another membership report is not received, or
“Infinity” for static multicast associations.
Ports The list of ports listening to this group.