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Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
If you configure the neighbor maximum-prefix command and the neighbor receives more prefixes
than the neighbor maximum-prefix command configuration allows, the neighbor goes down and the
show ip bgp summary command displays (prfxd) in the State/PfxRcd column for that neighbor. The
neighbor remains down until you enter the clear ip bgp command for the neighbor or the peer group
to which the neighbor belongs or you enter the neighbor shutdown and neighbor no shutdown
commands.
Related
Commands
show ip bgp summary — displays the current BGP configuration.
neighbor password
Enable message digest 5 (MD5) authentication on the TCP connection between two neighbors.
Syntax
neighbor {ip-address | peer-group-name} password [encryption-type] password
To delete a password, use the no neighbor {ip-address | peer-group-name} password
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.
encryption-type (OPTIONAL) Enter 7 as the encryption type for the password entered. 7 means
that the password is encrypted and hidden.
password
Enter a text string up to 80 characters long. The first character of the password
must be a letter.
You cannot use spaces in the password.
Defaults Not configured.
Command Modes ROUTER BGP
Supported Modes Full–Switch
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
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
290 Border Gateway Protocol IPv4 (BGPv4)