7.2 Basic MLS Configuration
7.2.5 MLS management interface
When a RSM or router is configured to participate in multilayer switching, the device uses the MLSP to send hello messages, advertise routing changes, and announce the VLANs or MAC addresses of those interfaces on devices participating in MLS. One interface on the MLS-RP must be identified as the management interface through which MLSP packets are sent and received. The MLSP management interface can be any MLS interface connected to the switch.

Only one management interface needs to be specified; however, if no management interface is configured, MLSP messages will not be sent.

Note: Multiple interfaces on the same Route Processor can be configured as a management interface; however, this action increases the management overhead per Route Processor.

To identify a management interface on an RSM or router, enter the following command in interface configuration mode.

Router(config-if)#mls rp management-interface

To disable the management interface, enter the no mls rp management-interface command in interface configuration mode.