Brocade TurboIron 24X Series Configuration Guide - Manual (Page 762)

728 Brocade TurboIron 24X Series Configuration Guide
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Configuring route flap dampening
The regular-expression parameter is a regular expression. The regular
expressions are the same ones supported for BGP4 AS-path filters. Refer to
“Using regular
expressions” on page 705.
The
The neighbor parameter displays route flap dampening statistics only for routes learned
from the specified neighbor. You also can display route flap statistics for routes learned from a
neighbor by entering the following command: show ip bgp neighbor flap-statistics.
This display shows the following information.
You also can display all the dampened routes by entering the following command.
show ip bgp dampened-paths
Clearing route flap dampening statistics
To clear route flap dampening statistics, use the following CLI method.
NOTE
Clearing the dampening statistics for a route does not change the dampening status of the route.
To clear all the route dampening statistics, enter the following command at any level of the CLI.
TurboIron#clear ip bgp flap-statistics
Syntax: clear ip bgp flap-statistics [regular-expression |
| neighbor ]
TABLE 104 Route flap dampening statistics
This field... Displays...
Total number of flapping routes Total number of routes in the Layer 3 Switch BGP4 route table that have
changed state and thus have been marked as flapping routes.
Status code Indicates the dampening status of the route, which can be one of the following:
•
> – This is the best route among those in the BGP4 route table to the route
destination.
•
d – This route is currently dampened, and thus unusable.
•
h – The route has a history of flapping and is unreachable now.
•
* – The route has a history of flapping but is currently usable.
Network The destination network of the route.
From The neighbor that sent the route to the Layer 3 Switch.
Flaps The number of flaps (state changes) the route has experienced.
Since The amount of time since the first flap of this route.
Reuse The amount of time remaining until this route will be un-suppressed and thus
be usable again.
Path Shows the AS-path information for the route.