Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 107)

Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide 83
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MPLS traffic engineering flooding reduction
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MPLS traffic engineering flooding reduction
Traffic engineering advertisements are triggered when a threshold value is reached or crossed. For
all other bandwidth changes, a periodic flooding timer or Connection Admission Check (CAC) failure
triggers the TE advertisements. When no thresholds are crossed, changes are flooded periodically
unless periodic flooding was disabled. Configurations can be executed as a global configuration or
interface specific configuration.
Interface specific configurations supersedes global configuration and default values. Global
configuration supersedes default values. When there is no interface specific configuration and
global configuration, then the default values are used.
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, use the rsvp-flooding-threshold
commands as shown in the following.
Brocade(config)# router mpls
Brocade(config-mpls)# policy
Brocade(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
Brocade(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 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 default values for the rsvp-flooding-threshold command are list below:
The default for DOWN is 99, 98, 97, 96, 95, 90, 85, 80, 75, 60, 45, 30, 15
The default for UP is 15, 30, 45, 60, 75, 80, 85, 90, 95, 96, 97, 98, 99, 100
In the example below, the UP threshold contains 10, 50, 55, 95, 96, 97, 98, 99 and 100. The
DOWN threshold contains 50, 40, 30, 20 and 10.
Brocade(config)# router mpls
Brocade(config-mpls)# policy
Brocade(config-mpls-policy)# rsvp-flooding-threshold up 10 50 55 95 96
Brocade(config-mpls-policy)# rsvp-flooding-threshold up 97 98 99 100
Brocade(config-mpls-policy)# rsvp-flooding-threshold down 50 40 30
Brocade(config-mpls-policy)# rsvp-flooding-threshold down 20 10
Brocade(config-mpls-policy)#