Juniper IGP - CONFIGURATION GUIDE V11.1.X Configuration Manual page 318

JUNOSe 11.0.x IP, IPv6, and IGP Configuration Guide
cost
dead-interval
hello-interval
message-digest-key md5
294
Remote Neighbors
host1(config-router-rn)#authentication-none
There is no no version.
See authentication-none
Use to specify a cost metric for the OSPF remote-neighbor interface; the metric
is used in the calculation of the SPF routing table.
The default value is 10 if there is no route to the remote neighbor; otherwise,
the default is calculated based on the bandwidth of the physical interface used
to reach the remote neighbor and the OSPF autocost reference bandwidth.
Example
host1(config-router-rn)#cost 235
Use the no version to restore the default value.
See cost
Use to set the time period, in seconds, that the OSPF router waits without
receiving hello packets from a remote neighbor before declaring the neighbor
to be down.
Example
host1(config-router-rn)#dead-interval 180
Use the no version to restore the default value, 40 seconds.
See dead-interval
Use to set the time interval between hello packets that the router sends on the
OSPF remote-neighbor interface.
Specify a value in the range 1–65535 seconds; the default value is 40 seconds.
Example
host1(config-router-rn)#hello-interval 15
Use the no version to restore the default value, 40 seconds.
See hello-interval
Use to enable MD5 authentication for the OSPF remote-neighbor interface and
configure the MD5 key.
If you delete all MD5 keys, MD5 authentication is still enabled; you must either
configure an MD5 key or disable MD5 authentication with the
authentication-none command.