Filter
Top Products
98 Chapter 5
Troubleshooting
Troubleshooting Client Connections
Gateway appears to be
hung
There are several possible causes. For all of the following, use of client
timeouts and/or Gateway timeouts (the I/O timeout and LAN timeout
configuration values) can be used to ensure that the Gateway will not
“hang” indefinitely.
If you determine that the Gateway is truly hung, you may be able to free it by
terminating a particular client connection at the client, thus freeing up the
resources to allow the Gateway to proceed. Otherwise, you may have to use
the Telnet reboot command.
n The network connection has gone down or the Gateway has gone down.
n The Gateway may be attempting a transaction to a non-existent or
powered-off device. Check the address used, as well as the status of
the device.
n The Gateway is busy performing a very long transaction to a (slow)
device, or it is waiting for input from a device.
n A client may be waiting for access to a device/interface locked by
another client. Use the Telnet status command to determine what
clients have which devices or interface locked and which clients are
waiting for those locks to be freed before they can proceed. Check for
possible deadlock situations and, if possible, make sure the clients
owning locks and the connections to those clients are still up and
functioning.
Message Description