Multicast and Routing Guide K/KA/KB.15.15

ip ospf cost 1-65535 Assigns the specified cost to all networks
configured on the VLAN.
ip ospf ip-address cost
1-65535
Assigns the specified cost to the specified
subnet on the VLAN.
ip ospf all cost 1-65535 Assigns the specified cost to all networks
configured on the VLAN. (Operates the same
as the ip ospf cost option, above.)
Default: 1; range 1–65535
Indicating the per-interface dead interval
Syntax:
ip ospf [ ip-address | all ] dead-interval 1-65535
Used in the VLAN context to indicate the number of seconds that a neighbor router
waits for a hello packet from the specified interface before declaring the interface
"down." Allows different settings for different subnet interfaces in the VLAN.
ip ospf dead-interval
1-65535
Assigns the specified dead interval to all
networks configured on the VLAN.
ip ospf ip-address
dead-interval 1-65535
Assigns the specified dead interval to the
specified subnet on the VLAN.
ip ospf all dead-interval
1-65535
Assigns the specified dead interval to all
networks configured on the VLAN. (Operates
the same as the ip ospf dead-interval
option, above.)
Default: 40 seconds; range 1–65535 seconds
Indicating the per-interface hello interval
Syntax:
ip ospf [ ip-address | all ] hello-interval 1-65535
Used in the VLAN context to indicate the length of time between the transmission
of hello packets from the routing switch to adjacent neighbors.
The value can be from 1 to 65535 seconds. Allows different settings for different
subnet interfaces in the VLAN.
ip ospf hello-interval
1-65535
Assigns the specified hello interval to all
networks configured on the VLAN.
ip ospf ip-address
hello-interval 1-65535
Assigns the specified hello interval to the
specified subnet on the VLAN.
ip ospf all hello-interval
1-65535
Assigns the specified hello interval to all
networks configured on the VLAN. Operates
the same as the ip ospf
hello-interval option.
Default: 10 seconds; range 1–65535 seconds
Changing priority per-interface
Syntax:
ip ospf [ ip-address | all ] priority 1- 255
The priority is used when selecting the DR and backup DRs (BDRs.)
156 Open Shortest Path First Protocol (OSPF)