Administrator Guide

Version Description
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
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.
When an aggregate address is denied using a peer's outbound route-map, individual routes suppressed by
the aggregate address are advertised to that peer.
The attribute-map corresponding to an aggregate address is applied during the outbound update creation
time; hence the value set in that attribute-map will not be shown in the output of the show ip bgp
aggregate route command.
bgp add-path
Allow the advertisement of multiple paths for the same address prefix without the new paths replacing any previous ones.
C9000 Series
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 (OPTIONAL) Enter the number paths supported. The range is from 2 to 64.
Defaults Disabled
Command Modes
● ROUTER BGP
● ROUTER BGP-address-family
Command
History
This guide is platform-specific. 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
9.9(0.0) Introduced on the C9010.
326 Border Gateway Protocol