Dell BigIron RX Series, Руководство по настройке

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1156 BigIron RX Series Configuration Guide
53-1002253-01
Displaying BGP4+ information
45
To display detailed information about the routes that have been filtered out by BGP4+ route
policies, 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 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).
•
C – CONFED_EBGP – The route was learned from a neighbor in the
same confederation and AS, but in a different sub-AS within the
confederation.
•
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.
NOTE: 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”.
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 192 Summary of filtered-out BGP4+ route information (Continued)
This field... Displays...