Administrator Guide

neighbor maximum-prefix
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
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. 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 prefixes reaches this percentage of the maximum value, the E-Series
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 prefixes is reached.
NOTE: When you set this option, the router accepts BGP prefixes only until
the maximum configured value. After the maximum number is reached, the
router drops any additional prefixes that it receives.
Defaults threshold = 75
Command Modes ROUTER BGP
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC
Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100-ON.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000–ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.8.1.0 Introduced on the S-Series.
7.7.1.0 Introduced on the C-Series.
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.
376 Border Gateway Protocol