Use the OSPF subtab to enable the OSPF routing protocol on the ONS node. OSPF must be enabled for
the ONS node to participate in OSPF-enabled networks.
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DCC/GCC OSPF Area ID Table
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Lists the slot and port with DCC or generic communications channel (GCC) terminations. You can change the area ID, but it must be any number between 000.000.000.000 and 255.255.255.255, and must be unique to the LAN OSPF area.
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Sets a “cost” for sending packets across the Section DCC (SDCC), 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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Sets a “cost” for sending packets across the Line DCC (LDCC). 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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The fields in this area enable OSPF on the LAN where the ONS node is connected:
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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. |
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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.) You can change this field when OSPF active on LAN is checked. |
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Authentication Type —Choose No Authentication or Simple Password to indicate whether password authentication is required. No Authentication is the button 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. |
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Router Priority —Sets the designated router priority for a subnet. |
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Hello Interval (sec) —Sets the number of seconds between OSPF “hello” packet advertisements sent by OSPF routers. Ten seconds is the default. |
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Dead Interval —Sets 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. |
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Transmit Delay (sec) —Sets the service speed. One second is the default. |
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Retransmit Interval (sec) —Sets the time that will elapse before a packet is resent. Five seconds is the default. |
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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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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.
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Range Address —Displays 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. |
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Range Area ID —Displays 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. |
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Mask Length —Displays the subnet mask length for the area range table. |
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Advertise —Indicates whether the area range table is advertised on the OSPF network to which the ONS node is connected. |
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Displays the Create Area Range Table dialog box to create a new area range table.
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Displays the Edit Area Range Table dialog box to edit the highlighted area range table.
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Deletes the highlighted area range 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:
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Neighbor —Displays the router ID of the Area 0 router. |
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Transmit Delay (sec) —Displays the service speed. One second is the default. |
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Hello Int (sec) —Displays the number of seconds between OSPF hello packet advertisements sent by OSPF routers. Ten seconds is the default. |
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Auth Type —Indicates the OSPF authentication type, either No Authentication or Simple Password. |
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Auth Key —If authentication type is set to Simple Password, the authentication key (password) is listed here. |
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Retransmit Int (sec) —Displays the time that will elapse before a packet is resent. Five seconds is the default. |
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Dead Int (sec) —Displays 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. |
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Displays the Create Virtual Link Table dialog box to create a new OSPF virtual link table.
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Displays the Edit Virtual Link Table dialog box to edit the highlighted virtual link table.
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Deletes the highlighted virtual link table.
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Applies changes made to the OSPF subtab fields.
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Cancels any OSPF subtab changes and returns the fields to their last-saved settings.
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Displays context-sensitive help.
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