Exam 642-883 Question id=3500 BGP Routing in Service Provider Environments

A service provider is running BGP with clients at the edge of the network.
The service provider sees that routing updates from one site are being dropped when the other site receives them.
Which feature fixes this issue?

A. EBGP multihop
B. inter-AS peering
C. AS-override
D. allow-AS in

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