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1.10.13 "Path in Use Error" When Creating a Circuit
1.10.13 "Path in Use Error" When Creating a Circuit
Symptom
circuit creation.
1.10.14 Calculate and Design IP Subnets
Symptom
1.10.15 Ethernet Connections
Symptom
Cisco ONS 15454 SDH Troubleshooting Guide, R5.0
1-128
While creating a circuit, you get a "Path in Use" error that prevents you from completing the
Possible Cause
Another user has already selected the same source port to create another circuit.
CTC does not remove a card or port from the available list until a circuit is
Recommended Action
completely provisioned. If two users simultaneously select the same source port to create a circuit,
the first user to complete circuit provisioning gets use of the port. The other user will get the "Path
in Use" error. Cancel the circuit creation and start over, or click the Back button until you return to
the initial circuit creation window. The source port that was previously selected no longer appears
in the available list because it is now part of a provisioned circuit. Select a different available port
and begin the circuit creation process again.
You cannot calculate or design IP subnets on the ONS 15454 SDH.
The IP capabilities of the ONS 15454 SDH require specific calculations to properly
Possible Cause
design IP subnets.
Cisco provides a free online tool to calculate and design IP subnets. Go to
Recommended Action
http://www.cisco.com/techtools/ip_addr.html. For information about ONS 15454 SDH IP
capability, refer to the Cisco ONS 15454 SDH Reference Manual Chapter 12, "CTC Network
Connectivity."
Ethernet connections appear to be broken or are not working properly.
Possible Cause
Improperly seated connections.
Incorrect connections.
Possible Cause
You can fix most connectivity problems in an Ethernet network by following a
Recommended Action
few guidelines. See
Figure
page
1-129.
1-49. Complete the
"Verify Ethernet Connections" procedure on
Chapter 1
General Troubleshooting
July 2005
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