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Smart MA5600T NTP time problem caused synchronized time abnormally

Publication Date:  2012-07-24 Views:  52 Downloads:  0
Issue Description

Customer Ntp server broadcasted utc time in normal form, but MA5600T device has displayed utc time which sychronized from ntp server with  -01:00, but this utc time is  difference from real utc time. All other  maufactory's devices (including windows xp computers and SUN v890 servers are synchronized time normally), except huawei MA5600T. 
The soft version is V800R005C02B056.

Alarm Information
Null
Handling Process

1. Chekced that NTP server works properly
2. Debug NTP service on MA5600T
MA5600T(config)# debugging ntp-service all
After analyzing debug messages, the problem was cleared:
Our device didn't automatically adopted DST, so that to solve the problem just need to add the following string to the configuration:
MA5600T(config)#time dst start 3 last sun 03:00:00 end 10 last sun 04:00:00    
3.Problem solved

Root Cause
The fact of cause phenomenon is that computers and some other manufactory devices automatically adopt daylight saving time and MA5600T device need to be configured by hand for that feature.
Suggestions
Null

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