OSPF Parameter Settings

NE

For example: NE1

Displays the NE Name.

Area

For example: 129.9.0.1

Indicates the area where the NE resides.

According to the OSPF protocol, a large network needs to be divided into multiple areas for management. The OSPF protocol applies to equipment in the same area only.

DCC Hello Timer (s)

1 to 255

Unit: second

Default: 10

Indicates the timer for sending hello packets at the DCC interface.

Hello packets are used to detect the neighbors in the network where the router resides. Sending hello packets on a regular basis helps check whether the neighbor router interface is in the active state.

DCC Neighbor Dead Time (s)

1 to 65535

Unit: second

Default: 40

Indicates the neighbor dead time for the DCC interface.

If the local router receives no hello packets from the neighbor router after the period in the DCC Neighbor Dead Time field, it indicates the neighbor router fails.

DCC Retransmission Timer (s)

1 to 65535

Unit: second

Default: 5

Indicates the timer for resending link status packets at the DCC interface.

DCC Delay (s)

1 to 3600

Unit: second

Default: 1

Indicates the hold-off time to send packets at the DCC interface.

LAN Hello Timer (s)

1 to 255

Unit: second

Default: 10

Indicates the timer for sending hello packets at the LAN interface.

Hello packets are used to detect the neighbors in the network where the router resides. Sending hello packets on a regular basis helps check whether the neighbor router interface is in the active state.

LAN Neighbor Dead Time (s)

1 to 65535

Unit: second

Default: 40

Indicates the neighbor dead time for the LAN interface.

If the local router receives no hello packets from the neighbor router after the period in the LAN Neighbor Dead Time field, it indicates the neighbor router fails.

LAN Retransmission Timer (s)

1 to 65535

Unit: second

Default: 5

Indicates the timer for resending link status packets at the LAN interface.

LAN Delay (s)

1 to 3600

Unit: second

Default: 1

Indicates the hold-off time to send packets at the LAN interface.

Direct Route

Enabled, Disabled

Default: Disabled

Enables or disables the direct route.

When the OSPF protocol is disabled, the direct route can still be broadcast. The hello packets, however, are blocked and the neighbor relationship cannot be established.

The direct route has the highest priority when the network selects routes.

Static Route

Enabled, Disabled

Default: Disabled

Enables or disables the static route.

A static route must be configured on the U2000 Web LCT manually before you enable the static route.

The priority of the static route is second to the direct route only when the network selects routes.

Default Route

Enabled, Disabled

Default: Disabled

Specifies whether the default route automatic flooding function is enabled for ASBRs.

Default OSPF routes are routes whose destination addresses and subnet masks are 0s.

Route ID

For example: 129.9.6.40

Sets the route ID.

Opaque LSA of External Network Port

Enabled, Disabled

Default: Disabled

Enables or disables the opaque LSA.

The opaque LSA can carry information about the traffic engineering.

LAN Interface

Enabled, Disabled

Default: Disabled

Enables or disables the OSPF protocol on the LAN interface.

None, Simple, MD5

Default: MD5

Indicates the authentication type for the default OSPF area of the LAN interface.

By default, OSPF is enabled for LAN interfaces on NEs, and the authentication type is MD5, which helps prevent interconnection with other vendors' NEs.