Figure 11-18 Single Destination Roll; Figure 11-19 Single Roll From One Circuit To Another Circuit (Destination Changes); Figure 11-20 Single Roll From One Circuit To Another Circuit (Source Changes) - Cisco ONS 15454 Reference Manual

11.18 11.18.3 Single and Dual Rolls
Figure 11-18
S
Figure 11-19
cross-connects on Node 1, Node 3, and Node 4. CTC deletes the cross-connect on Node 2 after the roll.
Figure 11-19
S
Figure 11-20
Figure 11-20
S
S2
Note Create a Roll To Circuit before rolling a circuit with the source on Node 3 and the destination on Node 4.
A dual roll involves two cross-connects. It allows you to reroute intermediate segments of a circuit, but
keep the original source and destination. If the new segments require new cross-connects, use the Bridge
and Roll wizard or create a new circuit and then perform a roll.
Dual rolls have several constraints:
You must complete or cancel both cross-connects rolled in a dual roll. You cannot complete one roll
•
and cancel the other roll.
When a Roll To circuit is involved in the dual roll, the first roll must roll onto the source of the
•
Roll To circuit and the second roll must roll onto the destination of the Roll To circuit.
Cisco ONS 15454 Reference Manual, R7.0.1
11-40
Single Destination Roll
Node 1
Original leg
New leg
shows one circuit rolling onto another circuit at the destination. The new circuit has
Single Roll from One Circuit to Another Circuit (Destination Changes)
Node 1
Node 3
shows one circuit rolling onto another circuit at the source.
Single Roll from One Circuit to Another Circuit (Source Changes)
Node 1
Node 3
Chapter 11
Node 2 D1
D2
D
Node 2
Node 4 D2
Original leg
New leg
D
Node 2
Node 4
Original leg
New leg
Circuits and Tunnels
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