5000 Series Layer 2/3 Managed Data Center Switch CLI Reference Guide
1051
Default
The default is as follows: prefix limit is set to the maximum number of supported routes in the forwarding
table and the threshold is 75%. A neighbor exceeding the limit is shutdown unless the
warning-only
option is configured.
Command Mode
BGP Router Config
11-43 maximum-prefix (IPv6 Address Family Config)
This command specifies the maximum number of IPv6 prefixes that BGP will accept from a specified
neighbor. The prefix limit is compared against the number of prefixes received from the neighbor,
including prefixes that are rejected by inbound policy. If the peering session is shut down, the adjacency
stays down until the
command is issued for the neighbor. The neighbor can also be brought
back up using the
command followed by the command
no neighbor shutdown
.
Issue this command in Address Family Configuration Mode to add it to a peer template.
Use the
no
command to revert to the default value for the maximum the number of prefixes that BGP will
accept from a specified neighbor.
maximum-prefix {maximum | unlimited} [threshold] [warning-only]
no maximum-prefix
Parameters
maximum
The maximum r of prefixes BGP will accept from this neighbor. Range is
0 to the maximum numb of routes the router supports.
unlimited
Do not enforce any prefix limit.
threshold
(Optional) When the number of prefixes received from the neighbor
exceeds this percentage of the maximum, BGP writes a log message.
The range is 1 to 100 percent. The default is 75%.
warning-only
(Optional) If BGP receives more than the maximum number of prefixes,
BGP discards excess prefixes and writes a log message rather than
shutting down the adjacency.
Default
The default is as follows: prefix limit is set to the maximum number of supported routes in the forwarding
table and the threshold is 75%. A neighbor exceeding the limit is shutdown unless the
warning-only
option is configured.
Command Mode
IPv6 Address Family Config
11-44 neighbor activate (IPv4 VRF Address Family Config)