Classful networks generated with the network BGP configuration command are not advertised by BGP

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Wed, 07/22/2009 - 19:35
Jun 18th, 2009

Core Issue

A valid route must exist in the routing table for Border Gateway Protocol (BGP) to advertise a classful network by issuing the network configuration command (under router BGP).

Resolution

To resolve this issue, ensure that a valid route exists in the routing table. The definition of a valid route depends on whether the auto-summary command is enabled under BGP.

For more information, refer to these documents:

show ip bgp {network mask}

Prefix/network does not exist

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