Open shortest path first (OSPF) is a dynamic routing protocol based on link state. To reduce the number of messages transmitted between NEs, the OSPF divides the routes in the network into many areas. NEs connect to each other through interfaces to exchange relevant messages and to obtain data on routes. The NE has two types of interfaces: including LAN interface and the DCC interface.
Procedure
- In the NE Explorer, select an NE and choose from the Function Tree.
- Click Query to query the current OSPF parameters on the NE.
- Enter the area in the Area field.
- Optional: Check the Import Static check box, and thus the NE can use the static routing protocol for communication.
- Enter DCC interface parameters in DCC:Hello Timer (s) and DCC:Dead Timer (s).
- Check the DCC:Not Silence check box, and thus the NE can use the DCC interface to send hello packets.
- Enter LAN interface parameters in LAN:Hello Timer (s) and LAN:Dead Timer (s).
- Check the LAN:Not Silence check box, and thus the NE can use the LAN interface to send hello packets.
NOTE: - Hello packets are used to detect the neighbors in the network where the router resides. Sending hello packets on a regular basis helps you check whether the neighbor router interface is in the active state.
- If the local router receives no hello packets from the neighbor router after the period in the dead timer field, the neighbor router fails.
- DCC:Hello Timer (s): Specifies the timer for sending hello packets at the DCC interface.
- DCC:Dead Timer (s): Specifies the neighbor dead time for the DCC interface.
- DCC:Not Silence: Sets whether to enable a DCC interface to transmit and receive hello packets.
- LAN:Hello Timer (s): Specifies the timer for sending hello packets at the LAN interface.
- LAN:Dead Timer (s): Specifies the neighbor dead time for the LAN interface.
- LAN:Not Silence: Sets whether to enable a LAN interface to transmit and receive hello packets.
- Click Apply. A dialog box is displayed indicating that the operation was successful.
- Click Close.