Reference Guide

Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 7.8.1.0 Introduced on the S-Series.
Version 7.7.1.0 Introduced on the C-Series.
Usage
Information
At least one of the routes included in the aggregate address must be in the BGP routing table
for the configured aggregate to become active.
If routes within the aggregate are constantly changing, do not add the as-set parameter to
the aggregate as the aggregate flaps to keep track of the changes in the AS_PATH.
In route maps used in the suppress-map parameter, routes meeting the deny clause are
not suppress; in other words, they are allowed. The opposite is also true: routes meeting the
permit clause are suppressed.
If the route is injected via the network command, that route still appears in the routing table
if the
summary-only parameter is configured in the aggregate-address command.
The summary-only parameter suppresses all advertisements. If you want to suppress
advertisements to only specific neighbors, use the neighbor distribute-list
command.
In the show ip bgp command, aggregates contain an ‘a’ in the first column and routes
suppressed by the aggregate contain an ‘s’ in the first column.
bgp add-path
Allow the advertisement of multiple paths for the same address prefix without the new paths replacing any previous
ones.
S4820T
Syntax
bgp add-path [send | receive | both] path-count
Parameters
send Enter the keyword send to indicate that the system sends multiple
paths to peers.
receive Enter the keyword receive to indicate that the system accepts
multiple paths from peers.
both Enter the keyword both to indicate that the system sends and
accepts multiple paths from peers.
path-count Enter the number paths supported. The range is from 2 to 64.
Defaults Disabled
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