Conditions For Ochnc Circuit Creation Failure - Cisco NCS 2000 series Troubleshooting Manual

Conditions for OCHNC Circuit Creation Failure

Conditions for OCHNC Circuit Creation Failure
If the OCHNC circuit creation fails, you will see one of the following conditions:
• If the WPP wizard cannot complete the circuit creation procedure, CTC displays the error message shown
Figure 17: Partial Circuits
• The circuit is successfully created and reported under the Circuits tab, the Status field turns to
Figure 18: Circuit Discovered, State OSS
• The OCHNC circuit is shown under the Circuits tab, but the Status field reports PARTIAL. This applies
The root cause identification for the preceding conditions are found in the prerequisite conditions described
in Prerequisites for Successful OCHNC Circuit Creation, on page
Scenarios for OCHNC Circuit Creation Failure
The most common scenarios for failure to create an OCHNC circuit are:
1. One (or more) of the Span OSC links involving the OCHNC circuit has not been properly established.
The WPP application prevents the creation of any circuit passing through the failing span. Prerequisite
condition of
1. The APC application is internally disabled due to the presence of a Critical alarm somewhere in the
2. One (or more) of the intranode connections between two DWDM cards associated with the circuit
3. One (or more) of the intranode connections between two DWDM cards associated with the circuit
To troubleshoot and eventually fix issues related to the faulty OCHNC circuit creation shown in
Partial Circuits, on page
Corrective Action
SUMMARY STEPS
1. Verify OSC connectivity:
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
78
in Figure 17: Partial Circuits, on page
that WPP can set up. Start troubleshooting the problem in the first node that is unreachable along the
path.
DISCOVERED, but the Circuit State is OOS (locked). The condition is shown in
Discovered, State OSS, on page 78
to a circuit successfully built-up when the network falls into scenarios a. or b (OSC link fail or APC
disabled), described below.
Prerequisites for Successful OCHNC Circuit Creation, on page 77
network. As a consequence, no reliable information about the number of active channels can be shared
among the nodes and the creation of any further OCHNC circuit is prevented until the faulty condition
is fixed. Prerequisite condition 1 of
77 has not been met.
have not been properly created. Prerequisite condition of 2
Circuit Creation, on page 77
have not been properly provisioned. This happens when ANS application has not run in one of the
involved nodes or at least one port status after the ANS run has not been successfully configured
(Fail-Out of Range alarm on the ANS panel). Prerequisite condition 3 of
OCHNC Circuit Creation, on page 77
78, the following procedure must be performed.
78. In the message, click Details to see the partial connections
.
Prerequisites for Successful OCHNC Circuit Creation, on page
has not been met.
has not been met.
General Troubleshooting
Figure 18: Circuit
77.
has not been met.
Prerequisites for Successful OCHNC
Prerequisites for Successful
Figure 17: