Command Line Reference Guide

Border Gateway Protocol IPv4 (BGPv4) | 297
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.
Do not add the as-set parameter to the aggregate, if routes within the aggregate are constantly changing
as the aggregate will flap 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 true: routes meeting the permit clause are suppressed.
If the route is injected via the network command, that route will still appear 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.
Command
History
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bgp add-path
e
Allow the advertisement of multiple paths for the same address prefix without the
new paths replacing any previous ones.
Syntax
bgp add-path {[send | both] path-count number | receive}
Parameters
Defaults
Disabled
Command Modes
ROUTER BGP
Usage
Information
The add-path feature is advertised to BGP neighbors through a capability advertisement. BGP Sessions
should be manually flapped for any change in the 'add-path' configuration. The BGP neighbor router
should also support Add-Path capability in order to receive multiple paths for the particular
address-family.
Command
History
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Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced support on C-Series
send
Enter this keyword to indicate that the system will send multiple paths to peers.
receive
Enter this keyword to indicate that the system will accept multiple paths from peers.
both
Enter this keyword to indicate that the system will send and accept multiple paths from peers.
path-count
number
Enter the number of paths to advertise.
Range: 2-64
Version 8.4.1.5 Introduced on ExaScale.