Service Manual

• EXEC Privilege
Command History
This guide is platform-specic. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.8(0.0) Introduced on the S3048–ON and S4048–ON.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.8.1.0 Introduced on the S-Series.
7.7.1.0 Introduced on the C-Series.
Usage Information
In BGP, route attributes are maintained at dierent locations. When attributes that correspond to multiple
routes change, then attribute counts that the show ip bgp summary command displays are calculated
as summations of attributes corresponding to all the associated routes. For example, if cluster_id is an
attribute associated with thousand routes that contain exactly the same set of attributes, then the
cluster_id count is 1. If these thousand routes are set with dierent attribute values with the same
cluster_id, then the cluster_id count is 1000, since the same value is stored for thousand dierent attribute
records.
The attribute next-hop is a part of the BGP attribute data structure.
If two peers send the same route that contains similar path attributes, then two entries are maintained in the
back-end, as both these entries have dierent next-hops. If this same route is sent to a dierent peer, an
entry for each peer is created, as the next-hop is dierent. As a result, the BGP attributes count in the
summary output will dier accordingly.
The following describes the show ip bgp summary command shown in the following example.
Field Description
BGP router
identier
Displays the local router ID and the AS number.
BGP table version Displays the BGP table version and the main routing table version.
network entries Displays the number of network entries, route paths, and the amount of memory
used to process those entries.
paths Displays the number of paths and the amount of memory used.
denied paths Displays the number of denied paths and the amount of memory used.
BGP path attribute
entries
Displays the number of BGP path attributes and the amount of memory used to
process them.
BGP AS-PATH
entries
Displays the number of BGP AS_PATH attributes processed and the amount of
memory used to process them.
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Border Gateway Protocol