Reference Guide

Border Gateway Protocol IPv4 (BGPv4) | 333
Related
Commands
Command
History
neighbor maximum-prefix
c e s
Control the number of network prefixes received.
Syntax
neighbor {ip-address | peer-group-name} maximum-prefix maximum [threshold] [warning-only]
To return to the default values, use the
no neighbor {ip-address | peer-group-name}
maximum-prefix maximum command.
Parameters
Defaults
threshold
= 75
Command Modes
ROUTER BGP
Usage
Information
If the neighbor maximum-prefix is configured and the neighbor receives more prefixes than
allowed by the neighbor maximum-prefix command configuration, 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 neighbor shutdown
and neighbor no shutdown commands.
Related
Commands
bgp
four-octet-as-support
Enable 4-Byte support for the BGP process.
Version 8.3.7.0 Introduced on the S4810.
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced command
Introduced support on C-Series
ip-address
Enter the IP address of the neighbor in dotted decimal format.
peer-group-name
Enter the name of the peer group.
maximum
Enter a number as the maximum number of prefixes allowed for this BGP
router.
Range: 1 to 4294967295.
threshold
(OPTIONAL) Enter a number to be used as a percentage of the maximum
value. When the number of prefixes reaches this percentage of the
maximum value, the E-Series software sends a message.
Range: 1 to 100 percent.
Default: 75
warning-only
(OPTIONAL) Enter the keyword warning-only to set the router to send a
log message when the maximum value is reached. If this parameter is not
set, the router stops peering when the maximum number of prefixes is
reached.
show ip bgp summary Displays the current BGP configuration.