Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) - Manual (Page 560)

532 Multi-Service IronWare Routing Configuration Guide
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Displaying BGP4+ information
AS_PATH:
Table 100 describes the output parameters of the show ipv6 bgp routes command.
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 |
TABLE 100 Output parameters of the show ipv6 bgp routes command
Field Description
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 For normal IPv6 routes, next hop is the next hop IPv6 router to reach the
destination. For the 6PE routes, next hop is the IPv4-mapped IPv6 address of
the peer 6PE router.
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 device associates with routes from a specific neighbor. For
example, if the receives routes to the same destination from two BGP4+
neighbors, the 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 device 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 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 in the same AS.
•
L – LOCAL. The route originated on this.
•
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.