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Cisco ONS 15600 SDH Reference Manual, Release 9.0
78-18400-01
Chapter 7 Circuits and Tunnels
7.13.3 Single and Dual Rolls
Figure 7-7
Single Source Roll
In
, you can select any available VC4 on Node 2 for a new destination.
Figure 7-8
Single Destination Roll
shows one circuit rolling onto another circuit at the destination. The new circuit has
cross-connects on Node 1, Node 3, and Node 4. CTC deletes the cross-connect on Node 2 after the roll.
Figure 7-9
Single Roll from One Circuit to Another Circuit (Destination Changes)
shows one circuit rolling onto another circuit at the source.
Figure 7-10
Single Roll from One Circuit to Another Circuit (Source Changes)
83267
Node 1
S1
S2
D
Node 2
Original leg
New leg
83266
Node 1
S
D2
D1
Node 2
Original leg
New leg
78703
Node 1
S
D
D2
Node 2
Node 4
Node 3
Original leg
New leg
134274
Node 1
S
D
Node 2
Node 4
Node 3
Original leg
New leg
S2