Dell Brocade DCX, Руководство по настройке

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1134 BigIron RX Series Configuration Guide
53-1001810-01
Displaying BGP4+ information
45
This display shows the following information.
Syntax: show ipv6 bgp routes [ <ipv6-prefix> / <prefix-length> | <table-entry-number> | age
<seconds> | as-path-access-list <name> | as-path-filter <number> | best | cidr-only |
[community <number> | no-export | no-advertise | internet | local-as] |
TABLE 180 Summary of BGP4+ routes
This field... Displays...
Number of BGP4+ Routes The number of routes displayed by the command.
Status codes A list of the characters the display uses to indicate the route’s status.
The status code appears in the Status column of the display. The status
codes are described in the command’s output.
Prefix The route’s prefix.
Next Hop The next-hop switch for reaching the route from the switch.
Metric The value of the route’s MED attribute. If the route does not have a
metric, this field is blank.
LocPrf The degree of preference for the advertised route relative to other routes
in the local AS. When the BGP4+ algorithm compares routes on the
basis of local preferences, the route with the higher local preference is
chosen. The preference can have a value from 0 – 4294967295.
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.
AS-PATH The AS-path information for the route.