Controlling Route Exchanges; Limiting The Number Of Dvmrp Routes Advertised - Cisco WS-C3550-12G Software Configuration Manual

Multilayer switch

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Configuring IP Multicast Routing

Controlling Route Exchanges

This section describes how to tune the Cisco device advertisements of DVMRP routes. It contains this

configuration information:

By default, only 7000 DVMRP routes are advertised over an interface enabled to run DVMRP (that is,

a DVMRP tunnel, an interface where a DVMRP neighbor has been discovered, or an interface

configured to run the ip dvmrp unicast-routing interface configuration command).

Beginning in privileged EXEC mode, follow these steps to change the DVMRP route limit:

configure terminal

ip dvmrp route-limit count

show running-config

copy running-config startup-config

To configure no route limit, use the no ip dvmrp route-limit global configuration command.

Limiting the Number of DVMRP Routes Advertised, page 24-53

Changing the DVMRP Route Threshold, page 24-54

Configuring a DVMRP Summary Address, page 24-54

Disabling DVMRP Autosummarization, page 24-56

Adding a Metric Offset to the DVMRP Route, page 24-56

Configuring Advanced DVMRP Interoperability Features

Enter global configuration mode.

Change the number of DVMRP routes advertised over an interface

enabled for DVMRP.

This command prevents misconfigured ip dvmrp metric interface

configuration commands from causing massive route injection into the

By default, 7000 routes are advertised. The range is 0 to 4294967295.

Return to privileged EXEC mode.

Verify your entries.

(Optional) Save your entries in the configuration file.

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