no-prepend replace-as dual-as optional keywords allows the remote peer to user either ASN for the BGP session. The remote BGP router will peer with the ASN in the router process statement or the alternate ASN in the local-as configuration.
- Chapter 14. Advanced BGP
- from IP Routing on Cisco IOS, IOS XE, and IOS XR: An Essential Guide to Understanding and Implementing IP Routing Protocols
- Publisher: Cisco Press
- Released: December 2014
dual-as keyword can peering router to use Alternate or Real ASN to peer me.
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