PLANET XGS3-24042 - Manual (Page 553)

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removes this virtual-link.
Parameter:
<id> is the area number which could be digits ranging between 0～4294967295, and also as an IP
address.
AUTHENTICATION = authentication [message-digest[message-digest-key <1-255> md5 ]
|null|AUTH_KEY].
authentication : Enable authentication on this virtual link.
message-digest: Authentication with MD-5.
null : Overwrite password or packet summary with null authentication.
AUTH_KEY= authentication-key <key>.
: A password consists of less than 8 characters.
INTERVAL= [dead-interval | hello-interval | message-digest-key<1-255>md5 |
retransmit-interval | transmit-delay] .
<value>:>: The delay or interval seconds, ranging between 1~65535.
: A neighbor is considered offline for certain dead interval without its group
messages which the default is 40 seconds.
: The time interval before the router sends a hello group message, default is 10
seconds.
: Authentication key with MD-5.
: The time interval before a router retransmitting a group message, default is
5 seconds.
: The time delay before a router sending a group messages, default is 1 second.
Command Mode:
OSPF protocol mode
Usage Guide:
In the OSPF all non-backbone areas will be connected to a backbone area. If the connection to the
backbone area is lost, virtual link will repair this connection. You can configure virtual link between
any two backbone area routers connected with the public non-backbone area. The protocol treat
routers connected by virtual links as a point-to-point network.
Example:
Switch#config terminal
Switch(config) #router ospf 100
Switch(config-router) #area 1 virtual-link 10.10.11.50 hello 5 dead 20
Relevant Commands:
area authentication, show ip ospf, show ip ospf virtual-links