Item
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Description
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Create VT tunnel on transit nodes
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This option is available if a DS-1 circuit passes through a node that does not have a VT tunnel, or if an existing VT tunnel is full. VT tunnels enable VT circuits to pass through ONS nodes without consuming cross-connect card resources. VT tunnels can carry 28 VT1.5 circuits. In general, creating VT tunnels is a good idea if you are creating many VT circuits from the same source and destination. Refer to the applicable ONS product online procedure guide for more information.
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Create VT aggregation point
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The VT aggregation point (VAP) option is available if the DS-1 circuit source or destination is on an OC-N, EC1, or DS3 port. The ONS 15454 also supports DS3E, DS3i-N-12, DS3XM-6, or DS3XM-12 ports. VT aggregation points aggregate DS-1s onto an STS for hand off to non-ONS 15454 networks or equipment, such as an inter-office facility (IOF), switch, or digital access cross-connect system (DACS). A VAP allows VT1.5 circuits to be routed through the node using one STS connection on the cross-connect card matrix rather than multiple VT connections on the cross-connect card VT matrix.
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STS grooming node is [source node], VT grooming node is [destination node]
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Creates the VAP on the DS-1 circuit source node. This option is available if the DS-1 circuit source is on an OC-N, EC1, or DS3 port. The ONS 15454 also supports DS3E, DS3i-N-12, DS3XM-6, or DS3XM-12 ports.
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STS grooming node is [destination node], VT grooming node is [source node]
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Creates the VAP on the DS-1 circuit destination node. This option is available if the DS-1 circuit destination is on an OC-N, EC1, or DS3 port. The ONS 15454 also supports DS3E, DS3i-N-12, DS3XM-6, or DS3XM-12 ports.
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None
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Choose this option if you do not want to create a VT tunnel or a VAP. This is the only available option if CTC cannot create a VT tunnel or VAP.
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Back
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Displays the previous Circuit Creation page. The page that appears depends on the circuit type and provisioning.
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Next
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Displays the next Circuit Creation page.
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Cancel
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Cancels circuit creation.
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Help
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Displays context-sensitive help.
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