BigIron RX Series Configuration Guide 64953-1001810-01Configuring DVMRP 23Modifying graft retransmit timeThe Graft Retransmit Time defines the initial period of time that a router sending a graft messagewill wait for a graft acknowledgement from an upstream router before re-transmitting thatmessage.Subsequent retransmissions are sent at an interval twice that of the preceding interval. Possiblevalues are from5 – 3600 seconds. The default value is 10 seconds.To modify the setting for graft retransmit time to 120, enter the following.BigIron RX(config-dvmrp-router)# graft 120Syntax: graft-retransmit-time <5-3600>Modifying probe intervalThe Probe Interval defines how often neighbor probe messages are sent to theALL-DVMRP-ROUTERS IP multicast group address. A router’s probe message lists those neighborDVMRP routers from which it has received probes. Possible values are from 5 – 30 seconds. Thedefault value is 10 seconds.To modify the probe interval setting to 10, enter the following.BigIron RX(config-dvmrp-router)# probe 10Syntax: probe-interval <5-30>Modifying report intervalThe Report Interval defines how often routers propagate their complete routing tables to otherneighbor DVMRP routers. Possible values are from 10 – 2000 seconds. The default value is 60seconds.To support propagation of DVMRP routing information to the network every 90 seconds, enter thefollowing.BigIron RX(config-dvmrp-router)# report 90Syntax: report-interval <10-2000>Modifying trigger intervalThe Trigger Interval defines how often trigger updates, which reflect changes in the networktopology, are sent. Example changes in a network topology include router up or down or changes inthe metric. Possible values are from 5 – 30 seconds. The default value is 5 seconds.To support the sending of trigger updates every 20 seconds, enter the following.BigIron RX(config-dvmrp-router)# trigger-interval 20Syntax: trigger-interval <5-30>Modifying default routeThis defines the default gateway for IP multicast routing.
