DGS-6604
m
area virtual-link
CLI Reference Guide
47
area virtual-link
Use this command to configure a link between two backbone areas that are
physically separated through other non-backbone area. Use the
no area virtual-
link
command to remove a virtual link.
area
AREA-ID
virtual-link
ROUTER-ID
[authentication [message-digest] ] [hello-interval
SECONDS
]
[dead-interval
SECONDS
] [transmit-delay
SECONDS
] [retransmit-interval
SECONDS
]
[[authentication-key
PASSWORD
] | [message-digest-key
KEY-ID
md5
KEY
]]
no area
AREA-ID
virtual-link
ROUTER-ID
[dead-interval|hello-interval|tansmit-
interval|retransmitinterval|authentication|authentication-key|message-digest-key
KEY-ID
]
Syntax Description
AREA-ID
Specifies the identifier of the transit area for the virtual link. The identifier can be
specified as either an IP address or a decimal value.
ROUTER-ID
The Router ID of the virtual link neighbor.
authentication
(Optional) Specifies authentication type. If no authentication type is specified for
the virtual-link, the authentication type for the area will be used.
message-digest
(Optional) Specifies that message-digest authentication be used.
hello-interval
SECONDS
Specifies the interval in seconds, between the hello packets that the router sends
on an interface. The valid setting is 1-65535.
dead-interval
SECONDS
Specifies the interval in seconds, during which no packets are received and after
which a neighbor is regarded as off-line. The valid setting is 1-65535.
transmit-delay
SECONDS
The interval the router waits before it transmits a packet. The valid setting is 1-
65535.
retransmit-interval
SECONDS
The interval the router waits before it retransmits a packet. The valid setting is 1-
65535.
authentication-key
PASSWORD
(Optional) Password to be used by neighboring routers. The password is a
continuous string of keyboard characters up to 8 bytes long. This password is a
key to allow the authentication procedure to generate or verify the authentication
field contained in the OSPF header. The authentication key is inserted directly
into the OSPF header when originating routing protocol packets. Each network
can be assigned a separate password on a per-interface basis. All neighboring
routers on the same network must use the same password to be able to route
OSPF traffic.
message-digest-key
KEY-ID
md5
KEY
(Optional) Key identifier and password to be used for Message Digest 5 (MD5)
authentication by neighboring routers and this router. The
KEY-ID
argument is a
number in the range from 1 to 255. The
KEY
consists of an alphanumeric string
of up to 16 characters in length. All neighboring routers on the same network
must have the identical key identifier and key, to be allowed to route OSPF
traffic. There is no default value.
