Ochnc Circuits Creation Failure; Prerequisites For Successful Ochnc Circuit Creation - Cisco ONS 15454 DWDM Manual

Chapter 1 General Troubleshooting
Note
For the two fibers belonging to the repaired span, identify the fiber for the east to west (E–W) line
Step 9
direction.
Repeat the procedure from
Step 10

1.12.3 OCHNC Circuits Creation Failure

OCHNC circuit creation is managed by the Cisco Wavelength Path Provisioning (WPP) network
application. The WPP application helps prevent errors during new circuit activation (if the wavelength
is already allocated in the path between source and destination) and also guarantees an appropriate time
interval between one circuit activation and the next to enable proper amplifier gain regulation by APC.
WPP uses the network topology information carried by the OSC link among different nodes to identify
the routing path of the optical wavelength (OCHNC circuits) from the source node to the destination
node. WPP also enables the card ports of the OCHNC circuits by changing the administrative state from
the default (OOS or Locked) state to the final (IS or Unlocked) state.

1.12.3.1 Prerequisites for Successful OCHNC Circuit Creation

The prerequisite conditions for successfully completed circuit creation are:
1.
2.
3.
OCHNC circuit creation is successfully completed when the CTC circuit table reports the situation
shown in
•
•
•
78-17742-02
If this is not possible and the new value of Span Loss cannot be modified, log into the Technical
Support Website at http://www.cisco.com/techsupport for more information or call Cisco TAC
(1 800 553-2447) in order to report a service-affecting problem
Step 6
Internode: OSC link active among all DWDM nodes involved
Internode: APC enabled (or alternatively manually disabled by the user)
Intranode: Logical connections among cards created and provisioned on every node of the network
(ANS completed)
Figure 1-29.
The Circuit Status has turned to DISCOVERED.
The # of spans field shows the correct number of hops among different nodes that the OCHNC
circuit passes through to reach the final destination.
Circuit State reports IS (or unlocked).
to Step 8 for the E–W direction.
Cisco ONS 15454 DWDM Troubleshooting Guide, R7.0.1
1.12.3 OCHNC Circuits Creation Failure
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