Reference Guide
804 | IPv6 Border Gateway Protocol (IPv6 BGP)
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Parameters
Defaults
Not configured.
Command Modes
ROUTER BGPV6-ADDRESS FAMILY
Command
History
neighbor maximum-prefix
c e
Control the number of network prefixes 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 command.
Parameters
Defaults
threshold = 75
Command Modes
ROUTER BGPV6-ADDRESS FAMILY
Command
History
ipv6-address (OPTIONAL) Enter the IPv6 address in the x:x:x:x::x format.
The
:: notation specifies successive hexadecimal fields of zeros.
peer-group-name
Enter the name of the peer group to apply the filter to all routers in the
peer group.
access-list-name
Enter the name of an established AS-PATH access list.
If the AS-PATH access list is not configured, the default is permit (to
allow routes).
in Enter the keyword in to filter inbound BGP routes.
out Enter the keyword out to filter outbound BGP routes.
Version 8.4.2.1 Introduced on C-Series and S4810.
Version 7.4.1.0 Introduced on E-Series TeraScale
ipv6-address (OPTIONAL) Enter the IPv6 address in the x:x:x:x::x format.
The
:: notation specifies successive hexadecimal fields of zeros.
peer-group-name
(OPTIONAL) 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.
Version 8.4.2.1 Introduced on C-Series and S4810.
Version 7.4.1.0 Introduced on E-Series TeraScale