- 454 -
be 8 bytes or less if the authentication type is simple. If the type is encrypt, the key may be up to 16 bytes.
Unauthenticated interfaces do not need an authentica tion key. If the type is encrypt, a key id in the ra nge
of 0 and 255 must be specified.The defa ult value for authentication type is none. Neither the default
password key nor the default key id are configured.
no area virtual-link authentication command configures the default authentication type for the OSPF
virtual interface identified by <areaid> and <neighbor>. The <neighbor> parameter is the Router ID of the
neighbor.
Syntax
area <areaid> virtual-link <nei ghbor > authentication {none | {simple <key>} | {encrypt <key> <keyid>}}
no area <areaid> virtual-link <neighbor> authentication
Default Setting
None
Command Mode
Router OSPF Config Mode

8.3.2.18 area virtual-link dead-interval

area virtual-link dead-interval command configures the dead interval for the OSPF virtual interface on
the virtual interface identified by <areaid> and <neighbor>. The <neighbor> parameter is the Router ID of
the neighbor. The range for seconds is 1 to 65535. no area virtual-link dead-interval command
configures the default dead interval for the OSPF virtual interface on the virtual interface identified by
<areaid> and <neighbor>. The <neighbor> parameter is the Route r ID of the neighbor
Syntax
area <areaid> virtual-link <neighbor> dead-interval <se con ds>
no area <areaid> virtual-link <neighbor> dead-interval
Default Setting
40
Command Mode
Router OSPF Config Mode

8.3.2.19 area virtual-link hello-interval

area virtual-link hello-interval comma nd configures the hello interval for the OSPF virtual interface on
the virtual interface identified by <areaid> and <neighbor>. The <neighbor> parameter is the Router ID of
the neighbor. The range for <seconds> is 1 to 65535. no area virtual-link hello-interval command
configures the default hello interval for the OSPF virtual interface on the virtual interface identified by
<areaid> and <neighbor>. The <neighbor> parameter is the Router ID of the neighbor