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Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
July 2010
Chapter 1 General Troubleshooting
1.6.9 TCP/IP Connection is Lost
1.6.9 TCP/IP Connection is Lost
Symptom
The TCP/IP connection was established and then lost, and a DISCONNECTED alarm appears
on CTC.
describes the potential cause of the symptom and the solution.
Ping the ONS 15600
Step 1
Display the command prompt:
a.
If you are using a Microsoft Windows operating system, from the Start Menu choose
Run
, type
command in the Open field of the Run dialog box, and click
OK
.
b.
If you are using a Sun Solaris operating system, from the Common Desktop Environment (CDE)
click the
Personal Application tab
and click
Terminal.
Step 2
For both the Microsoft and Sun operating systems, type the following at the prompt:
ping
ONS 15600 SDH IP address
For example
ping 192.1.0.2
If the workstation has connectivity to the ONS 15600 SDH, the ping is successful and displays a reply
from the IP address. If the workstation does not have connectivity, a “Request timed out” message
appears.
Step 3
If the ping is successful, it demonstrates that an active TCP/IP connection exists. Restart CTC.
The NIC is improperly
inserted or installed.
•
If you are using a PCMCIA-based NIC, remove and reinsert the NIC to
make sure the NIC is fully inserted.
•
If the NIC is built into the laptop/PC, verify that the NIC is not faulty.
The NIC is faulty.
Confirm that the NIC is working properly. If you have no issues connecting
to the network (or any other node), the NIC should be working correctly.
If you have difficulty connecting to the network (or any other node), the NIC
might be faulty and needs to be replaced.
Table 1-4
Unable to Verify the NIC Connection on Your PC (continued)
Possible Problem
Solution
Table 1-5
TCP/IP Connection is Lost
Possible Problem
Solution
Your PC lost TCP/IP
connection with the
ONS 15600 SDH.
Use a standard ping command to verify the TCP/IP connection between the
PC and the ONS 15600 SDH TSC card. A ping command will work if the PC
connects directly to the TSC card or uses a LAN to access the TSC card. A
ping command will also work if the CTC is connected through a gateway
network element (GNE) and DCC if the node and CTC are in the same subnet
or the required static routes are configured.
See the
Содержание Cisco ONS 15600 SDH
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