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Cisco ONS SONET TL1 Command Guide, R6.0
Chapter 2 Procedures and Provisioning
2.8.2 Bridge and Roll TL1 Commands
14. When rolling on a mixed protection circuit, the roll points have to be within the same protection
domain.
15. Rolling using TL1 can be performed on a CTC-created cross-connection.
Note If a roll is created using TL1 it cannot be edited or deleted by CTC.
16. Rolling using TL1 can be performed on a TL1 cross-connection.
Note If a roll is created using CTC it cannot be edited or deleted by TL1.
17. If the intermediate path of a circuit is being rolled away to another circuit, the second circuit cannot
carry any live traffic.
Note After a roll is completed, the second circuit will form the new intermediate path of the
original circuit.
18. Rolling cannot be performed on VT tunnels or VT aggregation point (VAP) circuits passing through
less than four nodes.
The following restrictions apply for bridge and roll using TL1 VCAT in this release:
1. For non open-ended VCAT circuits, you cannot change the source or destination of the circuit.
2. For open-ended VCAT circuits, you can change the source or destination of the circuit, but only on
the open end.
The following restrictions apply for bridge and roll using TL1 common fiber-routed VCAT circuits in
this release:
3. Rolling cannot change the common fiber property of a common fiber-routed VCAT circuit.
4. When rolling on a VCAT member circuit, in order not to change the common fiber property of a
common fiber-routed VCAT circuit, you can roll the member from one time slot to a different time
slot within the same fiber.
2.8.2 Bridge and Roll TL1 Commands
The following commands are used for bridge and roll:
• DLT-BULKROLL-<OCN_TYPE>
This command deletes or completes an attempted rolling operation. This command supports line
level rolling/bulk rolling and cannot be used for path-level rolling. The rolls that are created using
the ENT-BULKROLL-<OCN_TYPE> command can be deleted using the
DLT-BULKROLL-<OCN_TYPE> command.
• DLT- ROLL-<MOD_PATH>
This command deletes an attempted rolling operation or completes an attempted rolling operation.
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