Configure Bgp Add Aggregate-Address - Extreme Networks ExtremeWare XOS Command Reference Manual

configure bgp add aggregate-address

configure bgp add
ipv4-multicast]}
{advertise-policy <policy>} {attribute-policy <policy>}
Description
Configures a BGP aggregate route.
Syntax Description
address-family
ipaddress
as-match
as-set
summary-only
advertise-policy
attribute-policy
Default
If no address family is specified, IPv4 unicast is the default.
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 commands:
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 configures a BGP aggregate route:
configure bgp add aggregate-address 192.1.1.4/30
ExtremeWare XOS 11.3 Command Reference
aggregate-address
<ipaddress> {as-match | as-set}
The address family. BGP supports two address families: IPv4 Unicast and IPv4
Multicast.
Specifies an IP network address and mask length.
Generates autonomous system sequence path information (order of AS numbers
in AS_PATH is preserved).
Generates autonomous system set path information (order of AS numbers in
AS_PATH is not preserved).
Specifies to send only aggregated routes to the neighbors.
Specifies the policy used to select routes for this aggregated route.
Specifies the policy used to set the attributes of the aggregated route.
configure bgp add aggregate-address
{address-family [ipv4-unicast |
{summary-only}
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