问题

What technique should be used on BGP e

What technique should be used on BGP edge routers to prevent a multi - homed autonomous system from becoming a trans it system?（）

A Advertise with a high MED value all networks that are discovered via external BGP.
B Set the no - export community attribute on all networks that are advertised externally.
C Remove the AS - Path information on all routes in the BGP table pr ior to advertising externally.
D Set the origin code to incomplete for all networks that are discovered via external BGP.
E Only advertise networks externally if they have been discovered via internal BGP.
F Use an outgoing distribution list to filte r all networks not originating from inside the autonomous system.

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参考解析：

分类：CCNP(642-902)题库

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