Brocade Virtual ADX Switch and Router Guide (Supporting ADX v03.1.00) - Manual (Page 336)

322 Brocade Virtual ADX Switch and Router Guide
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Displaying BGP4+ information
9
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] | 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]
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.
The table-entry-number parameter specifies the table entry with which you want the display to
start. For example, if you specify 100, the display shows entry 100 and all entries subsequent to
entry 100.
The age seconds parameter displays only the routes that have been received or updated more
recently than the number of seconds you specify.
The as-path-access-list name parameter filters the display using the specified AS-path ACL.
The as-path-filter number parameter filters the display using the specified AS-path filter.
The best keyword displays the routes received from neighbors that the Virtual ADX device selected
as the best routes to their destinations.
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 Virtual ADX device received better routes from other sources
(such as OSPFv3 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 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.
•
– LOCAL. The route originated on this 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.
AS-PATH The AS-path information for the route.
TABLE 1 Summary of BGP4+ routes (Continued)
This field... Displays...