Asante Technologies 35516 user manual Configuring Dvmrp, Nbr-timeout 35-8000 seconds

5.5.2 Configuring DVMRP

This section presents the commands for configuring DVMRP IP Multicast Routing Protocol. The following commands are available from global configuration mode:

Router(config)# ip dvmrp ?
enable	Enable DVMRP Multicast Routing Protocol
graft-retransmit-interval	DVMRP graft message retransmitting interval
nbr-timeout	DVMRP neighbor timeout value
probe-interval	DVMRP Neighbor Probe message interval
prune-age	DVMRP prune lifetime value in seconds
report-interval	DVMRP report interval
route-discard-timeout	DVMRP route discard timeout
route-expire-timeout	DVMRP route expiration timeout
route-holddown-time	DVMRP route holdown time
Router(config)# ip dvmrp

Important! Remember that a no command (i.e no ip dvmrp enable) negates a previously entered command.

Enabling DVMRP

In order to enable DVMRP protocol you must enter into the global configuration mode and then issue the following global command.

Command	Purpose
ip dvmrp enable	Enable a DVMRP IP Multicast routing process, which
	places you in router configuration mode.
Graft-retransmit-interval

This value defines the interval of time that a DVMRP router sending a graft message will wait for a graft acknowledgment from an upstream router before re-transmitting that message.

Subsequent re-transmissions will be sent at an interval of twice that of the preceding interval.

DVMRP must be enabled on the router for this command to be operational.

Command	Purpose
graft-retransmit-interval <5–3600 seconds>	Defines the initial period of time that a
	DVMRP router sending a graft message.
	Default value: 10 seconds
Nbr-timeout

This value sets the neighbor timeout value, which is the period of time that a router will wait before it defines an attached DVMRP neighbor router as down.

DVMRP must be enabled on the router for this command to be operational.

Command	Purpose
nbr-timeout<35–8000 seconds>	Sets neighbor timeout value.
	Default value: 40 seconds

Probe-interval

This value defines how often neighbor probe messages are sent to the ALL-DVMRP-ROUTERS IP multicast group address.

A router’s probe message lists those neighbor DVMRP routers from which it has received probes.

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