Displaying last error packet from a bgp4+ neighbor – Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) User Manual

Page 585

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Multi-Service IronWare Routing Configuration Guide

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Displaying BGP4+ information

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 541.

Displaying last error packet from a BGP4+ neighbor

You can display information about the last packet that contained an error from any of a device’s
neighbors. The displayed information includes the error packet's contents decoded in a
human-readable format.

For example, to display information about the last error packet from any of a device’s neighbors,
enter the following command.

TABLE 112

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.

Brocade# show ipv6 bgp neighbor 2001:db8::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:db8:2::/48

10.90.213.77

1

0 :0 :13 0 :0 :0 65001 4355 1 701

*> 2001:db8:34::/48

10.90.213.77

1

0 :1 :4 0 :0 :0 65001 4355 701 62

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