Configuring RSVP Bundle Messages

When RSVP bundle messages are enabled on an interface, the device attempts to combine multiple outgoing RSVP messages on that interface into bundles to reduce overhead.

1. Configure the device.
   

   device# configure

2. Enable the MPLS router.
   

   device(config)# router mpls

3. Enable MPLS-capable interfaces and specify the selected individual ethernet interface.
   

   device(config-router-mpls)# mpls-interface ethernet 0/13

   In this example, the specified ethernet interface is 0/13.
4. Enable LDP parameter configuration.
   

   device(config-router-mpls-eth-0/13)# rsvp

5. Enable RSVP refresh reduction in the specified interface (0/13) with a bundle send delay of 20 milliseconds.
   

   device(config-router-mpls-eth-0/13-rsvp)# refresh-reduction bundle-message bundle-send-delay 20

   The bundle-send-delay option specifies the maximum period (in milliseconds) that an outgoing message can be delayed in order to create a multi-message bundle before sending. This delay is retained for the interface even when bundle messages are disabled.

Example

The following example enables RSVP bundle messages on interface 0/13 with q bundle-send-delay of 20 milliseconds.

device# configure 
device(config)# router mpls
device(config-router-mpls)# mpls-interface ethernet 0/13
device(config-router-mpls-eth-0/13)# rsvp
device(config-router-mpls-eth-0/13-rsvp)# refresh-reduction bundle-message bundle-send-delay 20

When the RSVP neighbor does not support refresh reduction, the interface does not bundle messages even when bundle messages are locally enabled. Use the no version of the command to disable RSVP bundle messages on this interface.

Note

Summary refresh is a more effective tool for RSVP refresh message overhead reduction.