User Manual

OSPF and OSPFv3
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M4200 and M4300 Series ProSAFE Managed Switches Web Management User Manual
• Next to the Interface column, select the check box for the interface that you want to
configure.
7. In the OSPF Area ID field, enter the 32-bit integer in dotted-decimal format.
This ID uniquely identifies the OSPF area to which the selected router interface connects.
If you assign an area ID that does not exist, the area is created with default values.
8. In the Admin Mode list, select Enable or Disable.
The default value is Disable. You can configure OSPF parameters without enabling
OSPF admin mode, but the change does not take effect until you enable admin mode.
The following information is displayed only if admin mode is enabled:
• State
• Designated router
• Backup designated router
• Number of link events
• LSA Ack interval
• Metric cost
For OSPF to be fully functional, you must enter a valid ID address and subnet mask. For
more information, see Configure the IP Interface on page 291.
Note: Once OSPF is initialized on the router, it remains initialized until the
router is reset.
9. In the Router Priority field, enter the OSPF priority for the selected interface.
The priority of an interface is specified as an integer from 0 to 255. The default is 1, which
is the highest router priority. A value of 0 indicates that the router is not eligible to become
the designated router on this network.
10. Configure the Retransmit Interval by entering the OSPF retransmit interval for the specified
interface.
This is the number of seconds between link state advertisements for adjacencies
belonging to this router interface. This value is also used when retransmitting database
descriptions and link state request packets. The valid values range from 1 to 3600
seconds (1 hour). The default is 5 seconds.
11. Configure the Hello Interval by entering the OSPF hello interval for the specified interface in
seconds.
This parameter must be the same for all routers attached to a network. Values range from
1 to 65,535. The default is 10 seconds.
12. Enter the OSPF Dead Interval for the specified interface in seconds.
This specifies how long a router waits to see a neighbor router’s hello packets before
declaring that the router is down. This parameter must be the same for all routers
attached to a network. This value must be a multiple of the hello interval (for example, 4).
The valid values range from 1 to 65,535. The default is 40 seconds.