Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 665)

Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide 641
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Displaying BGP or MPLS VPNv4 information
6
TABLE 109 BGP4 summary information
This field... Displays...
Total number of BGP VPNv4 Routes: The number of BGP VPNv4 routes.
Status or Status Codes 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.
NOTE: When the “b” is shown in 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 nonetheless not installed in the IP route table due to the
rib-route-limit (or RTM route table size limit) and
always-propagate option to allow the propagating those best
BGP 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: When the “m” is shown in 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.
NOTE: This field appears only when the user enters the route option.
Origin code A character the display uses to indicate the route’s origin. The origin
code appears to the right of the AS path (Path field). The origin codes
are described in the command’s output.
Route Distinguisher A unique ID that is prepended on any address being routed or
advertised from a VRF. The RD can be defined as either ASN-relative
or IP address-relative as described:
•
ASN-relative - Composed of the local ASN number followed by a
“:” and a unique arbitrary number. For example: 3:6
•
IP address-relative - Composed of the local IP address followed
by a “:” and a unique arbitrary number.
Network IP address or mask of the destination network of the route.
Next Hop The next-hop device for reaching the network from this device.
Metric The value of the route’s MED attribute. When the route does not
have a metric, this field is blank.
LocPrf The degree of preference for this route relative to other routes in the
local AS. When the BGP4 algorithm compares route on the basis of
local preference, the route with the higher local preference is
chosen. The preference can have a value from 0-4294967295