Download configuration

2QH6ZLWFKSUREOHPV
• Does the switch look right?
• Power, polarity, display
• Is the switch responsive?
• Telnet, Serial Port, ForeView
• What is its configuration?
• Is signaling / ilmi on for appropriate ports?
• Are PVCs present and appropriate?
• Are the application services configured
correctly on this switch?
Core Switch
1/28/98 6-3
For one switch problems (those affecting only one switch in the network), the approach
is to focus only on that one switch from a logical physical-to-application progression.
First, just look at the switch. Are there any lights on? Are there any red lights on?
Remember, our LAN port LED indicators are out when polarity is correct and when the
switch is powered off. Are the power supply lights on and green? Remember, only
one has to be on and green for BXs and 1000s. Is the display indicating the name of
the switch? Some people create a name longer than the display so that it must
constantly scroll. Is it scrolling? If not, what does it say? If it flashes Bootp over and
over, it means the operating system can’t be found and it is looking for a new one on its
Ethernet interface.
Can you access the switch using any management technique? If you can, look at “conf
sw sh” using AMI or click on the FORE logo on the Front Panel display in ForeView to
see if you can find out which revision of hardware, firmware and software is running.
Use “conf spans sh or conf sig sh” under AMI or look at the color of the port status bars
under ForeView to determine if the appropriate signaling type is active and address
registration has taken place for the device attached to the port.
Use “conf vpc sh, conf vpt sh and conf vcc sh” under AMI or PVP/VPC control under
ForeView to determine whether any PVCs are present and potentially causing
problems for your connection creation process.
Lastly, if you are running LANE or Classical IP, this switch may not be configured
correctly for the application. Perhaps its NSAP address was incorrectly entered into an
lecs.cfg file, or it is not part of the Classical IP subnet, etc.
Copyright FORE Systems
1/28/98
Core Switch
6-3