VT Matrix Optimization


(ONS 15310-CL, ONS 15327, and ONS 15454 only) Use the VT Matrix Optimization page to provision the virtual tributary (VT) circuit options. The following table describes the VT Matrix Optimization page fields and buttons.

Item

Description

Create VT tunnel on transit nodes

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.

Create VT aggregation point

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.

STS grooming node is [source node], VT grooming node is [destination node]

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.

STS grooming node is [destination node], VT grooming node is [source node]

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.

None

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.

Back

Displays the previous Circuit Creation page. The page that appears depends on the circuit type and provisioning.

Next

Displays the next Circuit Creation page.

Cancel

Cancels circuit creation.

Help

Displays context-sensitive help.