Item
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Description
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DCC/GCC OSPF Area ID Table
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Allows you to assign different OSPF Area IDs to the ONS node DCC terminations. The table lists the slot and port with DCC or GCC terminations. The Area ID can be any number between 000.000.000.000 and 255.255.255.255, but must be unique to the LAN OSPF area.
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SDCC Metric
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Sets a "cost" for sending packets across the regenerator section DCC, which is used by OSPF routers to calculate the shortest path. This value should always be higher than the LDCC metric. The default SDCC metric is 100. It is usually not changed.
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LDCC Metric
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Sets a "cost" for sending packets across the multiplex section (Line) DCC. This value should always be lower than the SDCC metric. The default LDCC metric is 33. It is usually not changed.
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OSPF on LAN
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The fields in this area enable OSPF on the LAN where the ONS node is connected:
OSPF active on LAN: When checked, enables the ONS node OSPF topology
to be advertised to OSPF routers on the LAN. Enable this field on ONS
nodes that directly connect to OSPF routers.
LAN Port Area ID: The OSPF area ID (dotted decimal format) for the router
port where the ONS node is connected. (This number is different from the
DCC/GCC OSPF Area ID.)
Authentication Type: Indicates whether password authentication is required.
No authentication is the default. If authentication is provisioned, the button
name changes to Simple Password. To provision the OSPF authentication,
click the button and complete the Edit Authentication dialog box.
Router Priority: The designated router priority for a subnet.
Hello Interval (sec): Number of seconds between OSPF "hello" packet
advertisements sent by OSPF routers. Ten seconds is the default.
Dead Interval: Number of seconds that will pass while an OSPF router's
packets are not visible before its neighbors declare the router down. Forty
seconds is the default.
Transit Delay (sec): The service speed. One second is the default.
Retransmit Interval (sec): The time that will elapse before a packet is resent.
Five seconds is the default.
LAN Metric: Sets a "cost" for sending packets across the LAN. This value
should always be lower than the DCC metric. Ten is the default.
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OSPF Area Range Table
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Displays the node's OSPF area range table, if created. Area range tables consolidate the information that is outside an OSPF Area border. One ONS node in the OSPF area is connected to the OSPF router. An area range table on this node points the router to the other nodes that reside within the ONS node OSPF area.
Range Address: The area IP address for the ONS nodes that reside within the
OSPF area. For example, if the OSPF area includes nodes with IP addresses
10.10.20.100, 10.10.30.150, 10.10.40.200, and 10.10.50.250, the range
address would be 10.10.0.0.
Range Area ID: The OSPF area ID for the ONS nodes. This is either the ID
in the DCC OSPF Area ID field or the ID in the Area ID for LAN Port field.
Mask Length: The subnet mask length for the area range table.
Mask: The subnet mask.
Advertise: Indicates whether the area range table is advertised on the OSPF
network to which the ONS node is connected.
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Create
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Displays the Create Area Range Table dialog box to create a new area range table.
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Edit
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Displays the Edit Area Range Table dialog box to edit the highlighted area range table.
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Delete
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Deletes the highlighted area range table.
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OSPF Virtual Link Table
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Displays the node's OSPF virtual link table, if created. All OSPF areas must be connected to Area 0. If the ONS node OSPF area is not physically connected to Area 0, the virtual link table provides the disconnected area with a logical path to Area 0:
Neighbor: The router ID of the Area 0 router.
Transmit Delay (sec): The service speed. One second is the default.
Retransmit Int (sec): The time that will elapse before a packet is resent. Five
seconds is the default.
Hello Int (sec): The number of seconds between OSPF hello packet
advertisements sent by OSPF routers. Ten seconds is the default.
Dead Int (sec): The number of seconds that will pass while an OSPF router's
packets are not visible before its neighbors declare the router down. Forty
seconds is the default.
Auth Type: Indicates the OSPF authentication type, either No
Authentication or Simple Password.
Auth Key: If authentication type is set to Simple Password, the
authentication key (password) is listed here.
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Create
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Displays the Create Virtual Link Table dialog box to create a new OSPF virtual link table.
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Edit
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Displays the Edit Virtual Link Table dialog box to edit the highlighted virtual link table.
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Delete
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Deletes the highlighted virtual link table.
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Apply
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Applies changes made to the OSPF subtab fields.
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Reset
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Cancels any OSPF subtab changes and returns the fields to their last-saved settings.
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Help
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Displays context-sensitive help.
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