Continuous Resets And Clears Of The Vc Established; Pvc Setup Request Rejected; Failed To Ping Through The Xot Svc Configured; Failed To Ping Through The Xot Pvc Configured - 3Com MSR 50 Series Configuration Manual

342 C 14: X.25
HAPTER
Continuous Resets and
Clears of the VC
Established
PVC Setup Request
Rejected
Failed to Ping through
the XOT SVC Configured
Failed to Ping through
the XOT PVC Configured
LAPB C
AND ONFIGURATION
Symptom
The virtual circuit can be set up, but is frequently reset or cleared during data
transmission.
Analysis
The symptom may be caused by erroneous flow control parameter settings.
Troubleshooting
If the two sides are connected directly, verify the output window and input
■
window of the local match the input window and output window of the
remote.
If both sides are connected to the public packet network, consult the network
■
administration for the correct flow control parameters.
Symptom
The request to set permanent virtual circuits (PVCs) is rejected.
Analysis
A possible reason is that the PVC range is disabled.
Troubleshooting
If the assigned PVC number is in the disabled PVC channel range, X.25 will surely
reject the PVC setup request. In this case, enable the permanent virtual circuit
channel range.
Symptom
After configuring SVC application of XOT, unable to ping through.
Analysis
The physical status and protocol status of the interface are not up, or the SVC/XOT
configuration is not correct.
Troubleshooting
Perform the following procedure to remove the fault.
First verify the physical connection status and protocol status of the interface
■
are UP.
If the interface status is DOWN, check whether the physical connections and
■
lower layer configurations are correct.
If the interface configuration is correct, check whether SVC is configured
■
properly.
If the SVC configuration is also correct, check whether XOT is configured
■
properly.
Symptom
After configuring PVC application of XOT, unable to ping through.