CLI Guide

Defaults Not congured.
Command Modes ROUTER BGPV6-ADDRESS FAMILY
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.
neighbor maximum-prex
Control the number of network prexes received.
Syntax
neighbor {ipv6-address | peer-group-name} maximum-prefix maximum [threshold]
[warning-only]
To return to the default values, use the no neighbor {ipv6-address | peer-group-name}
maximum-prefix maximum [threshold] [warning-only] command.
Parameters
ipv6-address Enter the IPv6 address in the x:x:x:x::x format.
NOTE: The :: notation species successive hexadecimal elds of zeros.
peer-group-name Enter the name of the peer group.
maximum Enter a number as the maximum number of prexes allowed for this BGP router. The
range is from 1 to 4294967295.
threshold (OPTIONAL) Enter a number to be used as a percentage of the maximum value. When
the number of prexes reaches this percentage of the maximum value, the software
sends a message. The range is from 1 to 100 percent. The default is 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 prexes is reached.
Defaults threshold = 75
Command Modes ROUTER BGPV6-ADDRESS FAMILY
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 If you congure the neighbor maximum-prefix command and the neighbor receives more prexes than
allowed by the neighbor maximum-prefix command conguration, the neighbor goes down and the show
ip bgp ipv6 unicast summary
command displays (prfxd) in the State/PfxRcd column for that neighbor.
The neighbor remains down until you enter the capture bgp-pdu max-buffer-size command for the
neighbor or the peer group to which the neighbor belongs or you enter neighbor shutdown and neighbor
no shutdown commands.
694 IPv6 Border Gateway Protocol (IPv6 BGP)