Configuring DVMRP Interoperability

Advanced DVMRP Interoperability Configuration Task List

Figure 94 Router Rejects Nonpruning DVMRP Neighbor

Source or RP

RP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Router A

 

 

 

 

 

 

 

 

 

 

Multicast

 

 

Router B

 

 

 

 

traffic gets

 

 

 

 

 

 

 

 

 

to receiver,

 

 

 

 

 

 

 

 

 

 

 

 

not to leaf

 

 

 

 

 

 

DVMRP

 

 

 

 

 

 

machine

 

 

Router C

 

 

 

 

 

 

 

 

 

 

Receiver

ip dvmrp reject-non-pruners

Leaf nonpruning DVMRP machine

43277

Note that the ip dvmrp reject-non-prunerscommand prevents peering with neighbors only. If there are any nonpruning routers multiple hops away (downstream toward potential receivers) that are not rejected, then a nonpruning DVMRP network might still exist.

To prevent peering with nonpruning DVMRP neighbors, use the following command in interface configuration mode:

Command

Purpose

Router(config-if)#ip dvmrp reject-non-pruners

Prevents peering with nonpruning DVMRP neighbors.

Configuring a Delay Between DVRMP Reports

You can configure an interpacket delay of a DVMRP report. The delay is the number of milliseconds that elapse between transmissions of sets of packets that constitute a report. The number of packets in the set is determined by the burst value, which defaults to 2 packets. The milliseconds value defaults to

100 milliseconds.

To change the default values of the delay, use the following command in interface configuration mode:

Command

Purpose

Router(config-if)#ip dvmrp output-report-delay

Configures an interpacket delay between DVMRP reports.

milliseconds [burst]

 

Cisco IOS IP Configuration Guide

IPC-544

Page 590
Image 590
Cisco Systems 78-11741-02 Configuring a Delay Between Dvrmp Reports, Prevents peering with nonpruning Dvmrp neighbors