3Com OfficeConnect 3C100XF Cli User's Manual - page 139
IGMP Commands
15-3
Join Command
join ip igmp
Adds a member to this multicast address group. Entries are added to the IGMP
Cache Table. Use the
list interfaces
command to view assigned interface names.
Leave Command
leave ip igmp
address> Removes a member from this multicast address group configured with the join ip igmp Table. List Command list ip igmp Displays configured IGMP interfaces , their associated multicast addresse s, and IGMP status . The command lists the following information: Interface - The Ethernet ( eth:1 ) or modem interface ( slot: x /port: y ) to which the IGMP multicast address is mapped. Multicast address - An IP address assigned from the standard range of recognized addresses identifying an IGMP group. The range is 224.0.0.0 -239.255.255.255 . Status - Description of how the specified multicast address joined the group. Status types may be single or combined. The types are: Self - Multicast address group joined by the OfficeConnect Gateway. Learned - Multicast address group discovered by OfficeConnect Gateway (non-OfficeConnect Gateway join). Proxy - Multicast address group connected to another interface on OfficeConnect Gateway. Parameters Description query_interval The frequency at which IGMP Host-Query messages are sent on the specified interface. The default is 125 . Parameters Description robustness Tuning parameter for expected packet loss on a subnet. If packet loss on a subnet is expected to be high, robustness may be increased. The range is 1-5 . The default is 2 . routing Will attempt to become the IGMP querier on this interface. The default is Disabled . version The version of IGMP running on this interface. This object can be used to configure a router capable of running either version. For IGMP to function correctly, all routers on a LAN must be configured to run the same version of IGMP on that LAN. The default is 2 . Interface Multicast address Status Expires Last Reporter eth:1 224.0.0.1 SELF 00:04:0 1 c:d:e:f eth:1 224.0.0.3 SELF/PROXY 00:04:0 4 a:b:c:d eth:1 224.0.0.5 SELF/LEARNED 00:04:0 5 00;00;00;0 0