Configuration Guide User guide

BigIron RX Series Configuration Guide 1261
53-1002484-04
Displaying BGP4+ information
46
Displaying route flap dampening statistics for a BGP4+ neighbor
To display route flap dampening statistics for a specified BGP4+ neighbor, enter the following
command at any level of the CLI.
Syntax: show ipv6 bgp neighbor <ipv6-address> flap-statistics
The <ipv6-address> parameter displays the route flap dampening statistics for a specified
neighbor. You must specify this address in hexadecimal using 16-bit values between colons as
documented in RFC 2373.
This display shows the following information:
You also can display all the dampened routes by using the show ipv6 bgp dampened-paths
command. For more information, refer to “Displaying dampened BGP4+ paths” on page 1243.
Communities The communities that routes with this set of attributes are in.
AS Path The ASs through which routes with this set of attributes have passed.
The local AS is shown in parentheses.
Address For debugging purposes only.
Hash For debugging purposes only.
Reference Counts For debugging purposes only.
TABLE 213 Route flap dampening statistics for a BGP4+ neighbor
This field... Displays...
Total number of flapping routes The total number of routes in the neighbor’s BGP4+ route table that
have changed state and thus have been marked as flapping routes.
Status code Indicates the status of the route, which can be one of the following:
• > – This is the best route among those in the neighbor’s BGP4+
route table to the route’s 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 IPv6 address of the advertising peer.
Flaps The number of flaps (state changes) the route has experienced.
Since The amount of time (in hh:mm:ss) since the first flap of this route.
Reuse The amount of time (in hh:mm:ss) after which the path is again
available.
Path The AS path of the route.
TABLE 212 BGP4+ neighbor route-attribute entries information (Continued)
This field... Displays...
BigIron RX# show ipv6 bgp neighbor 2000:4::110 flap-statistics
Total number of flapping routes: 14
Status Code
>:best d:damped h:history *:valid
Network From Flaps Since Reuse Path
h
> 2001:2::/32 166.90.213.77 1 0 :0 :13 0 :0 :0 65001 4355 1 701
*
> 3892:34::/32 166.90.213.77 1 0 :1 :4 0 :0 :0 65001 4355 701 62