Nokia IP710 Series Installation Manual page 138

Chapter 8: Troubleshooting
Common Ethernet Problems—Connectivity with Attached Device
Cause
Solution You might have used the wrong cable. Use a crossover cable between an
Cause
Solution You might have the wrong speed set. Verify that the speeds match on each
Cause
Solution Verify from the Interface page in Voyager that the interface is configured
Cause
Solution Disconnect connections one at a time until the problem is isolated to one
Unable to Ping Through Appliance—No Connectivity Between Ports
Cause
Solution Ensure that all interfaces are up and active, as described in CHAPTER 4,
Cause
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No link light.
IP700 Series appliance and a host, and a straight-through cable between
an appliance and a hub.
Unblinking data and activity LED.
end of the Ethernet connection (10 Mbps or
100 Mbps).
Port not enabled.
as .
ACTIVE
High collision rate on the hub.
computer and troubleshoot further.
This section covers connectivity issues that are isolated within an IP700
Series appliance or network.
Ping various network interfaces to pinpoint the problem. Use tcpdump to
help isolate the problem. Use tcpdump to verify that a packet is leaving or
entering a port. (For further information, see "To View Packets Running
the IGMP Protocol" on page 148.)
Interfaces not up.
Configuring and Monitoring the IP700 Series Appliance.
No route to network.
IP700 Series Installation Guide