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

Page 368

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354

Brocade Virtual ADX Switch and Router Guide

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Displaying BGP4+ information

For example, to display detailed information about the best routes to a destination received from
neighbor 2001:db8:2000:4::106, enter the following command.

This display shows the following information.

Status

The route’s status, which can be one or more of the following:

•

A – AGGREGATE. The route is an aggregate route for multiple networks.

•

B – BEST. BGP4+ has determined that this is the optimal route to the
destination.

•

D – DAMPED. This route has been dampened (by the route dampening
feature), and is currently unusable.

•

E – EBGP. The route was learned through a device in another AS.

•

H – HISTORY. Route dampening is configured for this route, and the route
has a history of flapping and is unreachable now.

•

I – IBGP. The route was learned through a device in the same AS.

•

L – LOCAL. The route originated on this Virtual ADX device.

•

M – MULTIPATH. BGP4+ load sharing is enabled and this route was
selected as one of the best ones to the destination. The best route among
the multiple paths also is marked with “B”.

NOTE: If the “m” is shown in lowercase, the software was not able to install

the route in the IPv6 route table.

•

S – SUPPRESSED. This route was suppressed during aggregation and
thus is not advertised to neighbors.

•

F – FILTERED. This route was filtered out by BGP4+ route policies on the
Virtual ADX device, but the Virtual ADX saved updates containing the
filtered routes.

AS-PATH

The AS-path information for the route.

TABLE 20

Detailed best and unreachable routes from a BGP4+ neighbor

This field...

Displays...

Number of accepted routes from a
specified neighbor (appears only in display
for all routes)

For information about this field, refer to

Table 19

on page 353.

Status codes

For information about this field, refer to