25-83
Command Mode:
Interface Configuration Mode.
Example:
Switch#config terminal
Switch(config)#interface vlan 1
Switch(Config-if-Vlan1)#ip ospf database-filter all out
25.30 ip ospf dead-interval
Command:
ip ospf [<
ip-address
>] dead-interval
<time >
no ip ospf [<
ip-address
>] dead-interval
Function:
Specify the dead interval for neighboring layer 3 switch; the “
no ip ospf [<
ip-address
>] dead-interval
” command
restores the default value.
Parameter:
<
ip-address
>
is the interface IP address shown in dotted decimal notation;
<time >
is the dead interval length of the neighboring layer 3 switches, shown in seconds and ranging between
1~65535.
Default:
The default dead interval is 40 seconds (normally 4 times of the hello-interval).
Command Mode:
Interface Configuration Mode.
Usage Guide:
If no Hello data packet received after the
dead-interval
period then this layer 3 switch is considered inaccessible and
invalid. This command modifies the dead interval value of neighboring layer 3 switch according to the actual link
state. The set
dead-interval
value is written into the Hello packet and transmitted. To ensure the normal operation of
the OSPF protocol, the dead-interval between adjacent layer 3 switches should be in accordance or at least 4 times
of the
hello-interval
value.