Alcatel-Lucent 7750 SR Manual page 1378

VPRN Service Configuration Commands
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 seconds 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.
local-address
Syntax local-address ip-address
no local-address
Context config>service>vprn>bgp>group
config>service>vprn>bgp>group>neighbor
Description
Configures the local IP address used by the group or neighbor when communicating with BGP peers.
Outgoing connections use the local-address as the source of the TCP connection when initiating
connections with a peer.
When a local address is not specified, the 7750 SR OS uses the system IP address when
communicating with IBGP peers and uses the interface address for directly connected EBGP peers.
This command is used at the neighbor level to revert to the value defined under the group level.
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Values
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7750 SR OS Services Guide