Label Distribution Protocol
466
MPLS Guide
© 2022 Nokia.
Use subject to Terms available at: www.nokia.com
3HE 18686 AAAB TQZZA
Parameters timeout — configures the time interval, in seconds, that LDP waits before declaring a
neighbor down
Values 1 to 65535
factor — specifies the number of keepalive messages that should be sent on an idle LDP
session in the hello timeout interval
Values 1 to 255
keepalive
Syntax keepalive timeout factor
no keepalive
Context config>router>ldp>if-params>ipv4
config>router>ldp>if-params>ipv6
config>router>ldp>if-params>if>ipv4
config>router>ldp>if-params>if>ipv6
config>router>ldp>targ-session>ipv4
config>router>ldp>targ-session>ipv6
config>router>ldp>targ-session>peer
Description This command configures the time interval, in seconds, that LDP waits before tearing down
the session. The factor parameter derives the keepalive interval.
If no LDP messages are exchanged for the configured time interval, the LDP session is torn
down. Keepalive timeout is usually three times the keepalive interval. To maintain the session
permanently, regardless of the activity, set the value to zero.
When an LDP session is being set up, the keepalive timeout is negotiated to the lower of the
two peers. Once a operational value is agreed upon, the keepalive factor is used to derive
the value of the keepalive interval.
The no form of the command:
• at the IPv4, IPv6, and targeted-session levels, sets the keepalive timeout and the
keepalive factor to the default value
• at the IPv4 or IPv6 interface level, sets the keepalive timeout and the keepalive factor
to the value defined under the corresponding interface-parameters level
• at the peer level, sets the keepalive timeout and the keepalive factor to the value
defined under the targeted-session level
config>router>ldp>targ-session>peer Inherits values from targeted-session
IPv4 or IPv6 context
Table 41 Hello Timeout Factor Default Values (Continued)
Context Timeout Factor
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