Alcatel-Lucent 7750 SR OS Service Manual page 1085

Description
This command configures the time, in seconds, that OSPF waits before declaring a neighbor router
down. If no hello packets are received from a neighbor for the duration of the dead interval, the router
is assumed to be down. The minimum interval must be two times the hello interval.
The no form of the command reverts to the default value.
Default
40 seconds
Special Cases OSPF Interface — If the dead-interval configured applies to an interface, then all nodes on the
subnet must have the same dead interval.
Virtual Link — If the dead-interval configured applies to a virtual link, then the interval on both
termination points of the virtual link must have the same dead interval.
Parameters
seconds — The dead interval expressed as a decimal integer.
hello-interval
Syntax hello-interval seconds
no hello-interval
Context config>service>vprn>ospf>area>interface
config>service>vprn>ospf>area>virtual-link
Description
This command configures the interval between OSPF hellos issued on the interface or virtual link.
The hello interval, in combination with the dead-interval, is used to establish and maintain the
adjacency. Use this parameter to edit the frequency that hello packets are sent.
Reducing the interval, in combination with an appropriate reduction in the associated dead-interval,
allows for faster detection of link and/or router failures at the cost of higher processing costs.
The no form of this command reverts to the default value.
Default
hello-interval 10 — A 10-second hello interval.
Special Cases OSPF Interface — If the hello-interval configured applies to an interface, then all nodes on the
subnet must have the same hello interval.
Virtual Link — If the hello-interval configured applies to a virtual link, then the interval on both
termination points of the virtual link must have the same hello interval.
Parameters
seconds — The hello interval in seconds expressed as a decimal integer.
interface-type
Syntax interface-type {broadcast | point-to-point}
no interface-type
7750 SR OS Services Guide
Values
2 — 2147483647 seconds
Values
1 — 65535
Virtual Private Routed Network Services
Page 1085