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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter10 Circuits and Tunnels
10.16 Reconfigure Circuits
•Circuit sizes must be identical.
•VLAN assignments must be identical.
•Circuit end points must send or receive the same framing format.
•The merged circuits must become a DISCOVERED circuit.
If all connections from the master circuit and all connections from the merged circuits align to form one
complete circuit, the merge is successful. If all connections from the master circuit and some, but not
all, connections from the other circuits align to form a single complete circuit, CTC notifies you and
gives you the chance to cancel the merge process. If you choose to continue, the aligned connections
merge successfully into the master circuit, and unaligned connections remain in the original circuits.
All connections from the master circuit and at least one connection from the other selected circuits must
be used in the resulting circuit for the merge to succeed. If a merge fails, the master circuit and all other
circuits remain unchanged. When the circuit merge completes successfully, the resulting circuit retains
the name of the master circuit.
10.16 Reconfigure Circuits
You can reconfigure multiple circuits, which is typically necessary when a large number of circuits are
in the PARTIAL state. When reconfiguring multiple circuits, the selected circuits can be any
combination of DISCOVERED, PARTIAL, DISCOVERED_TL1, or PARTIAL_TL1 circuits. You can
reconfigure VCTs, VCA circuits, VLAN-assigned circuits, CTC-created circuits, and TL1-created
circuits.
Use the CTC Tools > Circuits > Reconfigure Circuits command to reconfigure selected circuits. During
reconfiguration, CTC reassembles all connections of the selected circuits into circuits based on path size,
direction, and alignment. Some circuits might merge and others might split into multiple circuits. If the
resulting circuit is a valid circuit, it appears as a DISCOVERED circuit. Otherwise, the circuit appears
as a PARTIAL or PARTIAL_TL1 circuit.
Note PARTIAL tunnel and PARTIAL VLAN-capable circuits do not split into multiple circuits during
reconfiguration.