Alcatel-Lucent 7750 SR OS Service Manual page 1071

Context config>service>vprn>bgp
config>service>vprn>bgp>group
config>service>vprn>bgp>group>neighbor
Description
This command specifies the import policies to be used to control routes advertised to BGP neighbors.
Route policies are configured in the config>router>policy-options context.
When multiple policy names are specified, the policies are evaluated in the order they are specified. A
maximum of five (5) policy names can be specified. The first policy that matches is applied.
The no form of this command removes all route policy names from the import list.
Default
no import — BGP accepts all routes from configured BGP neighbors. Import policies can be used to
limit or modify the routes accepted and their corresponding parameters and metrics.
Parameters
policy — A route policy statement name.
keepalive
Syntax keepalive seconds
no keepalive
Context config>service>vprn>bgp
config>service>vprn>bgp>group
config>service>vprn>bgp>group>neighbor
Description
This command configures the BGP keepalive timer. A keepalive message is sent every time this timer
expires.
The keepalive parameter can be set at three levels: global level (applies to all peers), group level
(applies to all peers in peer-group) or neighbor level (only applies to specified peer). The most
specific value is used.
The keepalive value is generally one-third of the hold-time interval. Even though the OS
implementation allows the keepalive value and the hold-time interval to be independently set, under
the following circumstances, the configured keepalive value is overridden by the hold-time value:
If the specified keepalive value is greater than the configured hold-time, then the specified value is
ignored, and the keepalive is set to one third of the current hold-time value.
If the specified hold-time interval is less than the configured keepalive value, then the keepalive
value is reset to one third of the specified hold-time interval.
If the hold-time interval is set to zero, then the configured value of the keepalive value is ignored.
This means that the connection with the peer is up permanently and no keepalive packets are sent to
the peer.
The no form of the command used at the global level reverts to the default value.
The no form of the command used at the group level reverts to the value defined at the global level.
The no form of the command used at the neighbor level reverts to the value defined at the group level.
Default
30 seconds
Parameters
seconds — The keepalive timer in seconds, expressed as a decimal integer.
7750 SR OS Services Guide
Values
0 — 21845
Virtual Private Routed Network Services
Page 1071