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Knowledge Base

The communication between the VP8620 operation bench and the PC is not normal from time to time

Publication Date:  2012-09-22  |   Views:  197  |   Downloads:  0  |   Author:  SU1000863851  |   Document ID:  EKB1000015853

Contents

Issue Description

In the open processing of one site with VP8000 system, the communication between the operation bench and the PC is not normal from time to time. The communication between the operation bench and all the boards interrupted meanwhile and randomly, the feedback information is “communication with the PC abnormity”

Alarm Information

communication with the PC abnormity

Handling Process

Ping the address of the main control broad, failed. The problem maybe is the network cable or interface, or the MMPU.
1. Change the address of the active/standby board, restart, all is normal. But after a period of time, problem as old.
2. Check the grounding cable, no problem
3. Change the HUB network interface, problem as old
4. Change the network cable to the cable classic, problem solved.

Root Cause

The network cable abnormity, result in the communication between the operation bench and the PC unstable.

Suggestions

none