Nokia IP2255 Installation Guide - Page 111

Common Ethernet Problems-Connectivity with Attached, Device, Appliance Does Not Recognize New Memory

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General Troubleshooting Information Common Ethernet Problems-Connectivity with Attached Device Problem No link light. Solution You might have used the wrong cable. Use a crossover cable between the appliance and a host, and a straight-through cable between an appliance and a hub. Problem Solid activity LED. Solution You might have set the wrong speed. Verify that the speeds match on each end of the Ethernet connection (10 Mbps, 100 Mbps, or 1000 Mbps). Problem Port not enabled. Solution Verify that the interface port is configured as active by using the using the CLI show interfaces command. For information about how to access the CLI and the related reference materials, see "Using the Command-Line Interface" on page 55. Problem High collision rate on the hub. Solution Disconnect connections one at a time until the problem is localized to one computer and troubleshoot further. Appliance Does Not Recognize New Memory Configuration Problem The DIMMs are not properly seated in DIMM sockets. Solution Repeat memory installation procedures. Make sure DIMMs are fully seated in sockets. Be sure DIMMs click into place. Nokia IP2255 Security Platform Installation Guide 111

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General Troubleshooting Information
Nokia IP2255 Security Platform Installation Guide
111
Common Ethernet Problems—Connectivity with Attached
Device
Problem
No link light.
Solution
You might have used the wrong cable. Use a crossover cable
between the appliance and a host, and a straight-through cable between an
appliance and a hub.
Problem
Solid activity LED.
Solution
You might have set the wrong speed. Verify that the speeds match
on each end of the Ethernet connection (10 Mbps, 100 Mbps, or 1000 Mbps).
Problem
Port not enabled.
Solution
Verify that the interface port is configured as active by using the
using the CLI show interfaces command.
For information about how to access the CLI and the related reference
materials, see
“Using the Command-Line Interface”
on page 55.
Problem
High collision rate on the hub.
Solution
Disconnect connections one at a time until the problem is
localized to one computer and troubleshoot further.
Appliance Does Not Recognize New Memory Configuration
Problem
The DIMMs are not properly seated in DIMM sockets.
Solution
Repeat memory installation procedures. Make sure DIMMs are
fully seated in sockets. Be sure DIMMs click into place.