TR Troubleshooting - Gateway Problems 

 Is the whole network having a problem accessing or using a host gateway connected to a local ring?
Go to page 13.1. 

 Is just one ring station or a group of ring stations having a problem accessing or using a host gateway connected to a local ring?
Go to page 13.2. 

 Is there a problem accessing or using a host gateway from a non-local ring bridged, routed, or connected through a remote connection?
Go to page 13.3. 

 Is the failure symptom that gateway sessions appear to be running slowly or unresponsively?
Go to page 13.4. 

 Are LAN-to-host sessions intermittently locking up or freezing?
Go to page 13.5. 

This procedure is generic as to the gateway and gateway-sharing software manufacturers. For some of the troubleshooting steps mentioned on this page, you should also reference the manufacturer's documentation for any special predefined methods for checking configuration and for testing. 



13.1 The entire network has a problem accessing or using a host gateway connected to a local ring.

Thoroughly check the gateway's configuration as to the gateway manufacturer's hardware and software setup for use with the LAN and the respective host.

Are any incorrect configuration parameters present in the gateway's configuration as to the hardware and software setup for use with the LAN or the host?

Take the necessary action to resolve the problem and retest the gateway for proper operation. If the failure symptom is gone, record the problem in the network maintenance and service log. If the problem still exists after retesting, go to the next step .

Check all the ring stations that need to access the gateway for the proper configuration as to the gateway manufacturer's specifications.

Are any incorrect configuration parameters present in the ring station's configuration as to hardware and software setup for use with the gateway?

Take the necessary action to resolve the problem and retest the gateway for proper operation. If the failure symptom is gone, record the problem in the network maintenance and service log. If the problem still exists after retesting, go to the next step .

Check the host to make sure that it is properly configured as to session setup and port availability to handle communications to the respective gateway.

Are any incorrect configuration parameters present in the host's configuration as to hardware and software setup for use with the LAN ring stations or the gateway?

Take the necessary action to resolve the problem and retest the gateway for proper operation. If the failure symptom is gone, record the problem in the network maintenance and service log. If the problem still exists after retesting, go to the next step .

Attempt to run any available gateway diagnostics.

Did running the diagnostics produce any errors?

Take the necessary action to resolve the problem and retest the gateway for proper operation. If the failure symptom is gone, record the problem in the network maintenance and service log. If the problem still exists after retesting, go to the next step .

A configuration problem may still exist with the gateway or the LAN gateway software. Reference the respective gateway and gateway software manufacturers' instructions. 



13.2 One ring station or a group of ring stations has a problem accessing or using a host gateway connected to a local ring.

Check all the ring stations experiencing the problem for the proper configuration as to the gateway manufacturer's specifications.

Are any incorrect configuration parameters present in the ring stations' configuration as to the hardware and software setup for use with the gateway?

Take the necessary action to resolve the problem and retest the gateway for proper operation. If the failure symptom is gone, record the problem in the network maintenance and service log. If the problem still exists after retesting, go to the next step .

Check the host to make sure that it is properly configured as to session setup and port availability to handle communications for all the ring stations that are experiencing the problem.

Are any incorrect configuration parameters present in the host's configuration as to the hardware and software setup for use with the LAN ring stations?

Take the necessary action to resolve the problem and retest the gateway for proper operation. If the failure symptom is gone, record the problem in the network maintenance and service log. If the problem still exists after retesting, go to the next step .

Attempt to run any available gateway diagnostics.

Did running the diagnostics produce any errors?

Take the necessary action to resolve the problem and retest the gateway for proper operation. If the failure symptom is gone, record the problem in the network maintenance and service log. If the problem still exists after retesting, go to the next step .

A configuration problem may still exist with the gateway or the LAN gateway software. Attempt to get more conclusive fault-isolation data concerning the communication between the gateway and the ring stations experiencing the problem. Go to page 15.

If after using this procedure you cannot conclusively locate the problem and you continue to find failure symptoms that point to a gateway problem, reference the manufacturer's instructions. 



13.3 You have a problem accessing or using a host gateway from a non-local ring bridged, routed, or connected through a remote connection.

First, verify that the particular bridge, router, or remote connection link is functioning properly. If necessary, go to the respective page for the particular device:
7 Bridge ; 8 Router ; and 11 Modem .

Are there any problems with the linking devices, specifically the bridge, router, or communication (modem) devices/links?

Take the necessary action to resolve the problem and retest the gateway for proper operation. If the failure symptom is gone, record the problem in the network maintenance and service log. If the problem still exists after retesting, go to the next step .

If no problems can be conclusively located to those respective devices, attempt to get more conclusive fault-isolation data on the complete LAN communication process relating to the gateway by going to page 15



13.4 The gateway sessions appear to be running slowly or unresponsively.

Check all the gateway's operational-mode configurations for the proper configuration as to the gateway manufacturer's specifications.

Are any incorrect configuration parameters in any of the gateway's configurations for the hardware and software setup for use with the LAN/host?

Take the necessary action to resolve the problem and retest the gateway for proper operation. If the failure symptom is gone, record the problem in the network maintenance and service log. If the problem still exists after retesting, go to the next step .

Check the host to make sure its session setup and port availability are properly configured to handle communications for a ll the ring stations that are experiencing the problem.

Are any incorrect configuration parameters present in the host's configuration as to session and port capacity for use with the LAN layout of ring stations set up to use the gateway?

Take the necessary action to resolve the problem and retest the gateway for proper operation. If the failure symptom is gone, record the problem in the network maintenance and service log. If the problem still exists after retesting, go to the next step .

Attempt to run any available gateway diagnostics.

Did running the diagnostics produce any errors?

Take the necessary action to resolve the problem and retest the gateway for proper operation. If the failure symptom is gone, record the problem in the network maintenance and service log. If the problem still exists after retesting, go to the next step .

A configuration problem may still exist with the gateway or the LAN gateway software. Attempt to get more conclusive fault-isolation data as to the communication between the gateway and the ring stations that are experiencing the problem. Go to page 15.

If after using this procedure you cannot conclusively locate the problem and you continue to find failure symptoms that point to a gateway problem, reference the manufacturer's instructions. 



13.5 LAN-to-host sessions are intermittently locking up or freezing.

Attempt to run any available gateway diagnostics.

Did running the diagnostics produce any errors?

Take the necessary action to resolve the problem and retest the gateway for proper operation. If the failure symptom is gone, record the problem in the network maintenance and service log. If the problem still exists after retesting, go to the next step .

A configuration problem may still exist with the gateway or the LAN gateway software. Thoroughly check the gateway's configuration as to the gateway manufacturer's hardware and software setup for use on the LAN and the respective host.

Are any incorrect configuration parameters present in the gateway's configuration as to the hardware and software setup for use with the LAN or the host?

Take the necessary action to resolve the problem and retest the gateway for proper operation. If the failure symptom is gone, record the problem in the network maintenance and service log. If the problem still exists after retesting, go to the next step .

Attempt to get more conclusive fault-isolation data as to the communication between the gateway and the ring stations that are experiencing the problem. Go to page 15 .

If after using this procedure you cannot conclusively locate the problem and continue to find failure symptoms that point to a gateway problem, reference the manufacturer's instructions. 

 November 15, 1996 

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