Operation Manual

IGMP Snooping Commands
Mobility System Software Command Reference Guide
Version 7.3
14 – 384
Configuration values (lmqi) Last member query interval.
Configuration values
(rvalue)
Robustness value.
Multicast router
information
List of multicast routers and active multicast groups. The fields containing
this information are described separately. The show igmp mrouter
command shows the same information.
Port Number of the physical port through which the MX switch can reach the
router.
Mrouter-IPaddr IP address of the multicast router interface.
Mrouter-MAC MAC address of the multicast router interface.
Type How the MX learned that the port is a multicast router port:
❑ conf — Static multicast port configured by an administrator
❑ madv—Multicast advertisement
❑ quer—IGMP query
❑ dvmrp—Distance Vector Multicast Routing Protocol (DVMRP)
❑ pimv1—Protocol Independent Multicast (PIM) version 1
❑ pimv2—PIM version 2
TTL Number of seconds before this entry ages out if not refreshed. For static
multicast router entries, the time-to-live (TTL) value is undef. Static multicast
router entries do not age out.
Group IP address of a multicast group. The show igmp receiver-table command
shows the same information as these receiver fields.
Port Physical port through which the MX switch can reach the group’s receiver.
Receiver-IP IP address of the client receiving the group.
Receiver-MAC MAC address of the client receiving the group.
TTL Number of seconds before this entry ages out if the MX does not receive a
group membership message from the receiver. For static multicast receiver
entries, the TTL value is undef. Static multicast receiver entries do not age
out.
Querier information Information about the subnet multicast querier. If the querier is another
device, the fields described below are applicable. If the querier is the MX, the
output indicates how many seconds remain until the next general query
message. If IGMP snooping does not detect a querier, the output indicates this.
The show igmp querier command shows the same information.
Querier for vlan VLAN containing the querier. Information is listed separately for each VLAN.
Querier-IP IP address of the querier.
Querier-MAC MAC address of the querier.
TTL Number of seconds before this entry ages out if the MX does not receive a
query message from the querier.
IGMP vlan member ports Physical ports in the VLAN. This list includes all network ports configured to
be in the VLAN and all ports MSS dynamically assigns to the VLAN when a
user assigned to the VLAN becomes a receiver. For example, the list can
include an MP access port that is not configured to be in the VLAN when a
user associated with the MP access point on that port becomes a receiver for a
group. When all receivers on a dynamically added port age out, MSS removes
the port from the list.
IGMP static ports Static receiver ports.
IGMP statistics Multicast message and packet statistics. These are the same statistics
displayed by the show igmp statistics command.
Table 14– 1. Output for show igmp (continued)
Field Description