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| 9.6 |  | BGP Attributes |
| 9.6.8 |  | The Aggregator attribute |

Aggregator is a well-known discretionary attribute, type code 7. When configuring address aggregation, the router can also be configured to include its router ID and local AS number along with the supernet route. This attribute enables ISP administrators to determine which BGP router is responsible for a particular instance of aggregation. Tracing a supernet to its original "aggregator" may be necessary for troubleshooting purposes.

| Web Links Configuring BGP http://www.cisco.com/univercd/cc/td/doc/product/ software/ios122/122cgcr/fipr_c/ipcprt2/1cfbgp.htm