show ipv6 bgp flap-statistics

Displays BGP4+ route-dampening statistics for all dampened routes with a variety of options.
Syntax
show ipv6 bgp flap-statistics
show ipv6 bgp flap-statistics ipv6-addr { / mask } [ longer-prefix ]
show ipv6 bgp flap-statistics as-path-filter name
show ipv6 bgp flap-statistics neighbor ipv6-addr
show ipv6 bgp flap-statistics regular-expression name
Parameters
ipv6-addr
IPv6 address of a specified route in dotted-decimal notation.
mask
IPv6 mask of a specified route in CIDR notation.
longer-prefixes
Displays statistics for routes that match the specified route or have a longer prefix than the specified route.
as-path-filter name
Specifies an AS-path filter.
neighbor
Displays flap statistics only for routes learned from the specified neighbor.
ip-addr
IPv4 address of the neighbor.
regular-expression
Specifies a regular expression in the display output on which to filter.
name
Name of an AS-path filter or regular expression.
Modes

User EXEC mode

The show ipv6 bgp flap-statistics command displays the following information:

Output field Description

Total number of flapping routes

The total number of routes in the device’s 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’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.

Examples

The following example displays route dampening statistics. 

device> show ipv6 bgp flap-statistics

Total number of flapping routes: 14
    Status Code  >:best d:damped h:history *:valid
    Network          From           Flaps  Since    Reuse    Path
h>  2001:db8::/32    2001:db8::47   1      0 :0 :13 0 :0 :0  65001 4355 1 701
*>  2001:db8::/32    2001:db8::47   1      0 :1 :4  0 :0 :0  65001 4355 701 62
Parent topic: Show Commands