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B project CX600-8 10GE port issue cause can't ping analysis report

Publication Date:  2012-07-27 Views:  79 Downloads:  0
Issue Description

Version:CX600 V200R002C02B697
Can't ping from Sagartech port GE3/0/1 to Elite port 10GE7/0/0. On site Elite LPU alarm is abnormal.

Alarm Information
NA

Handling Process
1. Change to another LPU 10GE port.
2. Replace the LPU card. And keep the daughter-card.

Root Cause
1. Replace the Elite 10GE port to 10GE2/0/0. Then can ping from Elite to Sagartech.
2. Replace the XFP of 10GE7/0/0. However can't ping.
3. Check the Elite CX600-8 alarm log. The NP-3 ship is abnormal.
[W1MUMAGAONXXXAGR001-hidecmd]
=============================================================
===============display alarm all history===============
=============================================================
----------------------------------------------------------------------------
Level Date Time Info
Warning 11-12-12 18:52:22 LPU7 is failed, Line Buffer of NP-3 is abnormal
Warning 11-12-12 18:53:22 LPU7 is failed, Line Buffer of NP-3 is abnormal , Resume
Warning 11-12-12 19:51:22 LPU7 is failed, Line Buffer of NP-3 is abnormal
Warning 11-12-12 19:52:22 LPU7 is failed, Line Buffer of NP-3 is abnormal , Resume

4. Analysis the diag log. The X11 internal buffer is MemoryParityErr on slot 7 LPUF-20. X11 chip major work is forward the packet. And linbuffer is for input and output packet. When the error is on this area. It will cause forward packet abnormal. The LPU card can't deal with the forward packet. And can't ping.

Dec 12 2011 20:50:23 W1MUMAGAONXXXAGR001 %%01SRM/2/NODEFAULT(l):-Slot=7; NP-3 of LPU7 checked interrupt, because MemoryParityErr of Line Buffer is detected.
(Reason="Data Memory Parity Error(hour)")
Dec 12 2011 20:51:23 W1MUMAGAONXXXAGR001 %%01SRM/2/NODERESUME(l):-Slot=7; In NP-3 of LPU7, MemoryParityErr of Line Buffer resumed from failure.


Suggestions
1. When can't ping happen. check the transmission device is ok.
2. Collect diag file and analysis alarm and abnormal log. As temporarily solution restore the service change to normal card according to the analysis result.

END