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 |ipv6-unicast | ipv6-multicast]} ipaddress/masklength {as-match | as-set} {summary‑only} {advertise-policy policy} {attribute-policy policy}

History

This command was first available in ExtremeXOS 10.1.

This command required a specific license in ExtremeXOS 11.1.

Platform Availability

This command is available on platforms that support the appropriate license. For complete information about software licensing, including how to obtain and upgrade your license and which licenses support the BGP feature, see the Switch Engine 32.2 Feature License Requirements document.