
vi 114064 Rev. A
Chapter 3
Customizing IGMP
IGMP Concepts and Terminology ...................................................................................3-2
IGMP Queries ..........................................................................................................3-2
IGMP Host Reports ..................................................................................................3-2
Host Leave Messages ..............................................................................................3-3
Configuring IGMP on the Router ....................................................................................3-3
Enabling and Disabling IGMP ..................................................................................3-3
Estimating the Number of Groups ............................................................................3-4
Specifying a Version Threshold Time .......................................................................3-4
Configuring Logging .................................................................................................3-4
Configuring IGMP on an Interface ..................................................................................3-5
Enabling and Disabling IGMP ..................................................................................3-5
Specifying a Query Rate ..........................................................................................3-5
Specifying a Membership Timeout Interval ..............................................................3-6
Specifying a Designated Router Timeout Interval ....................................................3-6
Specifying a Maximum Host Response Time ..........................................................3-6
Configuring a Static Host Entry ......................................................................................3-7
Chapter 4
Customizing DVMRP
DVMRP Concepts and Terminology ...............................................................................4-2
Neighbor Connections ..............................................................................................4-2
Source Route Advertisements .................................................................................4-4
How DVMRP Chooses a Route ...............................................................................4-4
Routing Table and Forwarding Table ........................................................................4-5
Shortest-Path Trees .................................................................................................4-6
Configuring DVMRP on the Router .................................................................................4-7
Setting the Update Interval .......................................................................................4-7
Configuring Tree Pruning .........................................................................................4-8
Configuring DVMRP Timers .....................................................................................4-9
Setting the Route Expiration Timer ....................................................................4-9
Setting the Garbage Timer ................................................................................4-9
Setting the Neighbor Report Timer ..................................................................4-10
Setting the Leaf Timer .....................................................................................4-10
Specifying a Probe Interval ....................................................................................4-11
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