Brocade Virtual ADX Switch and Router Guide (Supporting ADX v03.1.00) User Manual

Page 359

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Brocade Virtual ADX Switch and Router Guide

345

53-1003246-01

Displaying BGP4+ information

9

This display shows the following 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.

TABLE 12

BGP4+ neighbor route-attribute entries information

This field...

Displays...

Total number of BGP Attribute
Entries

The number of route attribute entries for the specified neighbor.

Next Hop

The IPv6 address of the next hop router for routes that have this set of
attributes.

Metric

The cost of the routes that have this set of attributes.

Origin

The source of the route information. The origin can be one of the following:

EGP – The routes with this set of attributes came to BGP4+ through EGP.

IGP – The routes with this set of attributes came to BGP4+ through IGP.

INCOMPLETE – The routes came from an origin other than one of the
above. For example, they may have been redistributed from OSPFv3.

When BGP4+ compares multiple routes to a destination to select the best
route, IGP is preferred over EGP and both are preferred over INCOMPLETE.

Originator

The originator of the route in a route reflector environment.

Aggregator

Aggregator information:

AS Number

shows the AS in which the network information in the

attribute set was aggregated. This value applies only to aggregated routes
and is otherwise 0.

Router-ID

shows the device that originated this aggregator.

Atomic

Whether the network information in this set of attributes has been aggregated
and this aggregation has resulted in information loss:

TRUE – Indicates information loss has occurred

FALSE – Indicates no information loss has occurred

None – Indicates the attribute is not present.

Note: Information loss under these circumstances is a normal part of BGP4+
and does not indicate an error.

Local Pref

The degree of preference for routes that use this set of attributes relative to
other routes in the local AS.

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.

Virtual ADX# 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:db8:2001:2::/32

10.90.213.77

1

0 :0 :13 0 :0 :0 65001 4355

*> 2001:db8:3892:34::/32

10.90.213.77

1

0 :1 :4 0 :0 :0 65001 4355

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