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Understanding BGP Multihop

When external BGP (EBGP) peers are not directly connected to each other, they must cross one or more non-BGP routers to reach each other. Configuring multihop EBGP enables the peers to pass through the other routers to form peer relationships and exchange update messages. This type of configuration is typically used when a Juniper Networks routing device needs to run EBGP with a third-party router that does not allow direct connection of the two EBGP peers. EBGP multihop enables a neighbor connection between two EBGP peers that do not have a direct connection.

Published: 2012-12-08