C613-50631-01 Rev A Command Reference for IE340 Series 1456
AlliedWare Plus™ Operating System - Version 5.5.3-0.x
BGP AND BGP4+ COMMANDS
NEIGHBOR
MAXIMUM-PREFIX
neighbor maximum-prefix
Overview Use this command to control the number of prefixes that can be received from a
BGP or a BGP4+ neighbor.
Use the no variant of this command to disable this function. Do not specify
threshold to apply the default threshold of 75% for the maximum number of
prefixes before this is applied.
Syntax
neighbor <neighborid> maximum-prefix <maximum>
no neighbor <neighborid> maximum-prefix [<maximum>]
Default The default threshold value is 75%. If the threshold value is not specified this
default is applied.
Mode [BGP] Router Configuration or IPv4 Address Family Configuration
Mode [BGP4+] IPv6 Address Family Configuration
Usage The neighbor maximum-prefix command allows the configuration of a specified
number of prefixes that a BGP or a BGP4+ router is allowed to receive from a
neighbor. When the warning-only option is not used, if any extra prefixes are
received, the router ends the peering. A terminated peer, stays down until the
clear ip bgp command is used.
Parameter Description
<neighborid> {<ip-address>|<ipv6-addr>|<peer-group>}
<ip-address> Specify the address of an IPv4 BGP neighbor, in
dotted decimal notation A.B.C.D.
<ipv6-addr> Specify the address of an IPv6 BGP4+ neighbor,
entered in hexadecimal in the format X:X::X:X.
<peer-group> Name of an existing peer-group. For
information on how to create peer groups, refer
to the neighbor peer-group (add a neighbor)
command, and neighbor route-map command.
When this parameter is used with this
command, the command applies on all peers in
the specified group.
<maximum> <maxprefix>[<threshold>] [warning-only]
<maxprefix> <1-4294967295>
Specifies the maximum number of prefixes permitted.
<threshold> <1-100> Specifies the threshold value, 1 to 100 percent. 75% by
default.
warning-only Only gives a warning message when the limit is exceeded.
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