Brocade BigIron RX Series Configuration Guide User Manual

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BigIron RX Series Configuration Guide

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Displaying BGP4+ information

For example, to display details about routes received from neighbor 2000:1:1::1, enter the
following command at any level of the CLI.

Weight

The value that this switch associates with routes from a specific
neighbor. For example, if the switch receives routes to the same
destination from two BGP4+ neighbors, the switch prefers the route
from the neighbor with the larger weight.

Status

The advertised 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.
b – NOT-INSTALLED-BEST – BGP4+ has determined that this is the
optimal route to the destination but did not install it in the IPv6 route
table because the switch received better routes from other sources
(such as OSPFv3, RIPng, or static IPv6 routes).
D – DAMPED. This route has been dampened (by the route dampening
feature), and is currently unusable.
E – EBGP. The route was learned through a switch 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 switch in the same AS.
L – LOCAL. The route originated on this switch.
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
switch, but the switch saved updates containing the filtered routes.

TABLE 215

Summary of route information received from a BGP4+ neighbor (Continued)

This field...

Displays...