MPLS Traffic Engineering Flooding Reduction Global Configuration

Reserved bandwidth threshold configuration can be executed globally and is applied to all MPLS interfaces. Global configurations are done at the policy mode under router mpls.

To set RSVP-TE flooding thresholds at the global configuration level, complete the following steps.

  1. Enable the device and configure the terminal to the global configuration mode.
    device>enable
    device# configure terminal
  2. Enable the MPLS router.
    device(config)# router mpls
  3. Configure the policy parameters.
    device(config-mpls)# policy
  4. Enable RSVP triggered traffic engineering LSA flooding reduction. Use the up option. This triggers the bandwidth percentage to go up when the bandwidth is increased.
    device(config-mpls-policy)# rsvp-flooding-threshold up 10 20 30 40 50 55 60 65 70
    85 90 92 93 94 95 96 97 98 99 100
    The default for the up option is 15, 30, 45, 60, 75, 80, 85, 90, 95, 96, 97, 98, 99, and 100.
  5. Enable RSVP triggered traffic engineering LSA flooding reduction. Use the down option. This triggers the bandwidth percentage to go down when the bandwidth is decreased.
    device(config-mpls-policy)# rsvp-flooding-threshold down 99 98 97 96 95 94 93 92
    91 90 85 80 75 70 65 60 55 50 40 30 20 10
    The default for the down option is 99, 98, 97, 96, 95, 90, 85, 80, 75, 60, 45, 30, and 15.

The rsvp-flooding-threshold command can be executed multiple times in the policy mode; the threshold values are added to the existing set of global threshold values. The previously configured values are not overwritten.

The following example shows the threshold configurations be executed globally.

device>enable
device#configure terminal
device(config)# router mpls
device(config-mpls)# policy
device(config-mpls-policy)# rsvp-flooding-threshold up 10 20 30 40 50 55 60 65 70
85 90 92 93 94 95 96 97 98 99 100
device(config-mpls-policy)# rsvp-flooding-threshold down 99 98 97 96 95 94 93 92
91 90 85 80 75 70 65 60 55 50 40 30 20 10

In the following example, the UP threshold contains 10, 50, 55, 95, 96, 97, 98, 99, and 100. The DOWN threshold contains 50, 40, 30, 20, and 10.

device>enable
device# configure terminal
device(config)# router mpls
device(config-mpls)# policy
device(config-mpls-policy)# rsvp-flooding-threshold up 10 50 55 95 96
device(config-mpls-policy)# rsvp-flooding-threshold up 97 98 99 100
device(config-mpls-policy)# rsvp-flooding-threshold down 50 40 30
device(config-mpls-policy)# rsvp-flooding-threshold down 20 10
device(config-mpls-policy)#