Extreme Networks ExtremeWare XOS 11.0, Command Reference Manual

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852 ExtremeWare XOS 11.0 Command Reference Guide
BGP Commands
enable bgp aggregation
enable bgp aggregation
Description
Enables BGP route aggregation.
Syntax Description
This command has no arguments or variables.
Default
Disabled.
Usage Guidelines
Route aggregation is the process of combining the characteristics of several routes so that they are
advertised as a single route. Aggregation reduces the amount of information that a BGP speaker must
store and exchange with other BGP speakers. Reducing the information that is stored and exchanged
also reduces the size of the routing table.
To use BGP route aggregation, follow these steps:
1 Enable aggregation using the following command:
enable bgp aggregation
2 Create an aggregate route using the following command:
configure bgp add aggregate-address {address-family [ipv4-unicast |
ipv4-multicast]} <ipaddress> {as-match | as-set} {summary-only} {advertise-policy
<policy>} {attribute-policy <policy>}
Example
The following command enables BGP route aggregation:
enable bgp aggregation
History
This command was available in ExtremeWare XOS 10.1.