Dell PowerConnect B-RX Configuration Manual page 1196

45
Displaying BGP4+ information
TABLE 183
This field...
LocPrf
Weight
Status
AS-PATH
Syntax: show ipv6 bgp routes [<ipv6-prefix>/<prefix-length> | <table-entry-number> | age
You can use the following options with the show ipv6 bgp routes command to determine the
content of the display.
The <ipv6-prefix>/<prefix-length> parameter displays routes for a specific network. You must
specify the <ipv6-prefix> parameter in hexadecimal using 16-bit values between colons as
documented in RFC 2373. You must specify the <prefix-length> parameter as a decimal value. A
slash mark (/) must follow the <ipv6-prefix> parameter and precede the <prefix-length>
parameter.
1124
Summary of BGP4+ routes (Continued)
<seconds> | as-path-access-list <name> | as-path-filter <number> | best | cidr-only |
[community <number> | no-export | no-advertise | internet | local-as] |
community-access-list <name> | community-filter <number> | detail [<option>] | local |
neighbor <ipv6-address> | nexthop <ipv6-address> | no-best | prefix-list <name> |
regular-expression <regular-expression> | route-map <name> | summary | unreachable]
Displays...
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.
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.
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.
The AS-path information for the route.
BigIron RX Series Configuration Guide
53-1001986-01