SmartCell ZX-250 User Guide 5-1
5
TROUBLESHOOTING
This chapter provides basic troubleshooting for diagnosing and fixing problems with VLAN, emulated LANs, and
ATM traffic congestion.
5.1
TROUBLESHOOTING IP OVER ATM
You have configured an IP over ATM VLAN, but your network applications are not working. Use these questions and
tests to help determine the cause of the problem.
s•
Check for connectivity: Try pinging between end nodes and from the SmartCell ZX-250 (using
start ping
) to its end nodes. If you cannot ping, check physical connectivity (disconnected cable
and so on).
¢•
Check IP routes and addresses.
U
Use the
show route
command to check the SmartCell ZX-250 route table.
†
Are the destination addresses correct for the specified gateways?
†
Are there any routing loops?
†
Are one or more of the destination addresses mapped to the wrong subnet?
U
Use
show client
(ARP server is on SmartCell ZX-250) to check the local client.
†
Does the client have the correct IP address?
†
Is the subnet correct? Is the ATM address correct?
†
Is the server type correct?
U
Check end node configurations.
†
Are end nodes configured correctly?
••
Check ARP statistics.
U
Use
show ipatmarp
(if the ARP server is on the SmartCell ZX-250).
†
Are there entries in the table?
†
Are the ATM addresses correct?
U
Use
show clientarp
(ARP server is not on SmartCell ZX-250) to check local client’s ARP Table.
†
Are there entries in the table? If not, recheck client and end node configuration.
†
Are the ATM addresses correct?
T•
Check ILMI, UNI routes, and PVCs (if applicable).
U
If using SVCs, use
show ATMRoute
to check whether static UNI routes are correct and whether
dynamic UNI routes are established and correct. If dynamic routes are incorrect or missing, try
creating static routes instead.
U
If using PVCs, use
show pvc
to check if PVCs connect the correct resources through the correct
ports.
U
If using PVCs, use
show ipatmpvc
to check if local switch clients are mapped to the correct end node
IP addresses.
Summary of Contents for SmartCell ZX-250
Page 12: ...xii SmartCell ZX 250 User Guide Table of Contents...
Page 16: ...xvi SmartCell ZX 250 User Guide List of Tables...
Page 18: ...1 2 SmartCell ZX 250 User Guide Introduction...
Page 46: ...3 8 SmartCell ZX 250 User Guide Creating an Emulated LAN IP Over ATM and LANE...
Page 92: ...4 46 SmartCell ZX 250 User Guide Performing Hardware Maintenance Switch Administration...
Page 98: ...5 6 SmartCell ZX 250 User Guide Troubleshooting Congestion Troubleshooting...
Page 110: ...A 12 SmartCell ZX 250 User Guide Acronyms...
Page 124: ...C 8 SmartCell ZX 250 User Guide Managing the SmartCell ZX 250 Agent Support...
