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Cisco ONS SONET TL1 Command Guide, R6.0
Chapter 2 Procedures and Provisioning
2.8.5 Protection Rolling Procedures
Step 2 If you performed a manual roll, you must confirm the circuit is valid by issuing the
RTRV-BULKROLL-<OCN_TYPE> command:
Input Format:
RTRV-BULKROLL-<OCN_TYPE>:[<TID>]:<SRC>:<CTAG>;
Input Example:
RTRV-BULKROLL-OC12:CISCO:FAC-3-1:1;
2.8.4.2 Create a 1-Way Circuit Dual Roll
In this procedure, both the source and destination nodes are rolled. There are two types of dual rolls:
• Dual roll for a single circuit within the same facilities but to a different time slot.
• Dual roll for a single circuit from one span card to another span card.
Step 1 Determine which type of roll you want to perform on the source node and follow the steps in the
“2.8.3 2-Way Circuit Single Roll and Dual Roll Procedures” section on page 2-54.
Step 2 Determine which type of roll you want to perform on the destination node and follow the steps in the
“2.8.3 2-Way Circuit Single Roll and Dual Roll Procedures” procedure on page 2-54.
2.8.5 Protection Rolling Procedures
To perform protection rolls, follow the procedures in the “2.8.3 2-Way Circuit Single Roll and Dual Roll
Procedures” section on page 2-54 and the “2.8.4 1-Way Circuit Single Roll and Dual Roll Procedures”
section on page 2-56.
Note Before performing a protection roll, either from one protection group to another or within the same
protection group, the protection group must already be provisioned.
Table 2-10 shows what kind of protection rolls are supported from one domain to another. X indicates
the roll is allowed.
Table 2-10 Supported Protection Rolls
Roll From Domain Roll To Domain
BLSR PCA 1+1
Path
Protection Unprotected
BLSR XXX X
PCA XXX X
1+1 XXX X
Path Protection X
Unprotected XXX X