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DES-7200 Configuration Guide Chapter 6 BGP
Configuration
6-22
BGP routing table.
To configure the BGP route aggregation, execute the following operations in the
BGP configuration mode:
Command Function
DES-7200(config-router)#
aggregate-address
address mask
(Optional) Configure the
aggregated address.
DES-7200(config-router)#
aggregate-address
address mask as-set
(Optional) Configure the
aggregated address, and remain
the AS path information of the path
within the scope of the aggregated
address.
DES-7200(config-router)#
aggregate-address
address mask summary-only
(Optional) Configure the
aggregated address and only
advertise the aggregated path.
DES-7200(config-router)#
aggregate-address
address mask as-set summary-only
(Optional) Configure the
aggregated address, and remain
the AS path information of the path
within the scope of the aggregated
address. At the same time, only the
aggregated path is advertised.
Use the no mode of above commands to disable the configured content.
Caution
By default, the BGP will advertise all route information both before and after
aggregation. If you want to advertise only the aggregated path information, use
the aggregate-address summary-only command.
6.14 Configuring Route Reflector for BGP
To speed up the convergence of the route information, all BGP Speakers within
one AS will usually establish the full connection relationship (The adjacent
relationship is established between any two BGP Speakers). Too many BGP
Speakers within the AS will increase the resource overhead of the BGP Speakers,
raise the configuration workload and complexity of network administrators and
reduce the network scalability.
For this reason, two measures such as the route reflector and AS confederation
are proposed to reduce the connections of the IBGP peers within an AS.
The route reflector is a measure to reduce the connections of the IBGP peer
within the AS. One BGP Speaker is set as the route reflector, which divides the