Contents
1 Multimedia Traffic Control with IP Multicast (IGMP).........................................7
Overview................................................................................................................................7
IGMP general operation and features..........................................................................................7
IGMP operating features.......................................................................................................7
Basic operation...............................................................................................................7
Enhancements.....................................................................................................................7
Number of IP multicast addresses allowed...............................................................................8
Configuring and displaying IGMP (CLI).......................................................................................8
Viewing IGMP configuration for VLANs..................................................................................8
Viewing the current IGMP configuration..................................................................................9
Viewing IGMP high level statistics for all VLANs on the switch..................................................10
Viewing IGMP historical counters for a VLAN........................................................................11
Viewing IGMP group address information.............................................................................11
Viewing IGMP group information for a VLAN with a filtered address........................................12
Enabling or disabling IGMP on a VLAN...............................................................................12
Configuring per-port IGMP traffic filters.................................................................................13
Configuring the querier function...........................................................................................13
Configuring static multicast groups.......................................................................................14
How IGMP operates...............................................................................................................14
Operation with or without IP addressing................................................................................15
Automatic fast-leave IGMP..................................................................................................15
Default (enabled) IGMP operation solves the "delayed leave" problem.................................17
Configuring fast-leave IGMP...........................................................................................17
Forced fast-leave IGMP.......................................................................................................17
Configuring forced fast-leave IGMP.................................................................................18
Configuring fast learn.........................................................................................................18
Configuring delayed group flush..........................................................................................18
IGMP proxy forwarding...........................................................................................................19
How IGMP proxy forwarding works.....................................................................................19
Configuring IGMP proxy (CLI)..............................................................................................20
Adding or leaving a multicast domain..............................................................................20
VLAN context command.....................................................................................................21
IGMP proxy show command...............................................................................................21
Operating notes for IGMP proxy forwarding.....................................................................22
Using the switch as querier......................................................................................................23
Well-known or reserved multicast addresses excluded from IP multicast filtering...............................24
IP multicast filters....................................................................................................................24
Reserved addresses excluded from IP multicast filtering............................................................25
2 Multimedia Traffic Control with IP Multicast (IGMP) v2 NG............................26
IGMP V2 NG Overview..........................................................................................................26
Features overview..............................................................................................................26
IGMP Context Commands...................................................................................................26
Enabling delayed flush on IGMP.....................................................................................26
Configuring Fast-Learn IGMP..........................................................................................27
VLAN Context Commands..................................................................................................27
Enabling or Disabling IGMP on a VLAN..........................................................................27
Configuring the Querier Function.....................................................................................27
Configuring the IGMP Query Interval...............................................................................27
Configuring Per-Port IGMP Traffic Filters............................................................................27
Configuring Fast-Leave IGMP..........................................................................................28
Configuring Forced Fast-Leave IGMP................................................................................28
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