1-50
Cisco ONS 15327 Troubleshooting Guide, R3.4
April 2003
Chapter1 General Troubleshooting
PC Connectivity Troubleshooting
1.5.4 Verify PC Connection to the ONS 15327 (Ping)
Symptom The TCP/IP connection is established and then lost, and a DISCONNECTED alarm appears on
CTC.
Table 1 -6 describes the potential cause of the symptom and the solution.

Procedure: Ping the ONS 15327

Step 1 Display the command prompt:
a. If you are using a Microsoft Windows operating system, from the Star t M enu c ho ose Run, type
command prompt 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 De sktop Environment ( CD E)
click the Personal Application tab and click Terminal.
Step 2 For both the Sun and Microsoft operating systems, at the prompt type:
ping
ONS-15327-IP-address
For example:
ping 192.1.0.2.
Incorrect type of
Category 5 cable is
being used.
If connecting an ONS 15327 directly to your laptop/PC or a router, use a
straight-through Category 5 cable. When connecting the ONS 15327 to a hub
or a LAN switch, use a crossover Category 5 cable.
For details on the types of Category 5 cables, see the “1.8.2.1Cri mp
Replacement LAN Cables” section on page 1-74.
The NIC is improperly
inserted or installed. If you are using a PCMCIA-based NIC, remove and re-inser t t he N IC 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), then the NIC should be working correctly.
If you have difficulty connecting to the network (or any other node), then the
NIC might be faulty and needs to be replaced.
Table1-5 Unable to Verify the NIC Connection on Your PC (continued)
Possible Problem Solution
Table1-6 Verify PC Connection to ONS15327 (Ping)
Possible Problem Solution
A lost connection
between the PC and the
ONS 15327.
Use a standard ping command to verify the TCP/IP connection between the
PC and the ONS 15327 XTC card. A ping command works if the PC
connects directly to the XTC card or uses a LAN to access the XTC card.
See the “Ping the ONS 15327” procedure on page 1- 50 .