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PowerConnect B-Series FCX Configuration Guide 1085
53-1002266-01
Displaying BGP4 information
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These displays show the following information.
TABLE 190 BGP4 route information
Field Description
Total number of BGP Routes The number of BGP4 routes.
Status codes A list of the characters the display uses to indicate the route status. The status
code is appears in the left column of the display, to the left of each route. The
status codes are described in the command output.
Prefix The network prefix and mask length.
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 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 because the Layer 3 Switch 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 Layer 3 Switch.
• 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 IP route table.
• S – SUPPRESSED. This route was suppressed during aggregation and thus
is not advertised to neighbors.
Age The last time an update occurred.
Next_Hop The next-hop router for reaching the network from the Layer 3 Switch.
Learned from Peer The IP address of the neighbor that sent this route.
Local_Pref 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 through 4294967295.
MED The route metric. If the route does not have a metric, this field is blank.
Origin The source of the route information. The origin can be one of the following:
• EGP – The routes with this set of attributes came to BGP through EGP.
• IGP – The routes with this set of attributes came to BGP through IGP.
• INCOMPLETE – The routes came from an origin other than one of the
above. For example, they may have been redistributed from OSPF or RIP.
When BGP4 compares multiple routes to a destination to select the best route,
IGP is preferred over EGP and both are preferred over INCOMPLETE.