Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) - Manual (Page 618)

590 Multi-Service IronWare Routing Configuration Guide
53-1003033-02
Displaying BGP4+ information
Displaying BGP4+ VRF6 summary information
To display summary statistics for all the VRF6 routes in the device’s BGP4+ route table for a
specified VRF, enter the following command.
This field... Displays...
Total number of BGP
Routes The number of BGP4+ routes the Brocade device has installed in the BGP4 route
table.
Status The route 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.
NOTE: If the “b” is lowercase, the software was not able to install the route in the IP
route table.
•
b – NOT-INSTALLED-BEST. The routes received from the neighbor are the best
BGP4 routes to their destinations, but were not installed in the IP route table
because the device received better routes from other sources (such as OSPF, RIP,
or static IP 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.
•
H – HISTORY. Route dampening is configured for this route, and the route has a
history of flapping and is unreachable now.
•
I – INTERNAL. The route was learned through BGP4.
•
L – 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 lowercase, the software was not able to install the route in the IP
route table.
•
S – SUPPRESSED. This route was suppressed during aggregation and thus is not
advertised to neighbors.
Prefix The IP address and network mask of the destination network of the route.
AS_PATH The BGP AS_PATH path attribute.
Next Hop The IP address of the next-hop router.
MED The Multi-exit Discriminator (MED) associated with the route. The MED applies to
routes that have multiple paths through the same AS. The best route is the route with
the lowest MED.
LocPrf The degree of preference for this 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 route associates with routes from a specific neighbor. For example,
if the Brocade device receives routes to the same destination from two BGP4
neighbors, the device prefers the route from the neighbor with the larger weight.
Status The route’s status. Refer to “Status” on page 590.