Dell C1048P Port Extender Networking Command-Line Reference Guide for the C900 - Page 448

Version 9.2(1.0) 8.3.19.0 8.3.11.1 8.3.7.0 7.8.1.0 7.7.1.0 Description Introduced on the Z9500. Introduced on the S4820T. Introduced on the Z9000. Introduced on the S4810. Introduced on the S-Series. Introduced on the C-Series. Usage Information Configure the same password on both BGP peers or a connection does not occur. When you configure MD5 authentication between two BGP peers, each segment of the TCP connection between them is verified and the MD5 digest is checked on every segment sent on the TCP connection. Configuring a password for a neighbor causes an existing session to be torn down and a new one established. If you specify a BGP peer group by using the peer-group-name parameter, all the members of the peer group inherit the characteristic configured with this command. If you configure a password on one neighbor, but you have not configured a password for the neighboring router, the following message appears on the console while the routers attempt to establish a BGP session between them: %RPM0-P:RP1 %KERN-6-INT: No BGP MD5 from [peer's IP address] :179 to [local router's IP address]:65524 Also, if you configure different passwords on the two routers, the following message appears on the console: %RPM0-P:RP1 %KERN-6-INT: BGP MD5 password mismatch from [peer's IP address] : 11502 to [local router's IP address] :179 neighbor peer-group (assigning peers) Allows you to assign one peer to an existing peer group. C9000 Series Syntax neighbor ip-address peer-group peer-group-name To delete a peer from a peer group, use the no neighbor ip-address peergroup peer-group-name command. Parameters ip-address Enter the IP address of the router to be included in the peer group. peer-group-name Enter the name of a configured peer group. 448 Border Gateway Protocol