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Device ping usg9110, delay is large.

Publication Date:  2012-10-15 Views:  86 Downloads:  0
Issue Description
1, usg hanging in the network;
2, usg9110 ping any address, delay is large, and jitter;
3,any device and host ping usg9110, delay is large, and also jitter;
4, but across the usg9110 traffic delay is very small, there is no jitter, very stable
Alarm Information
Handling Process
Belong to the normal range. 
Root Cause
1, usg9100 is a distributed architecture, ping device itself message, need to change from the business board to the main board to processing, MPU board processed, will be sent from the business board back flapper.
2, the main control board has limited processing power, but also the core of the control device, can not exceed the processing performance, so the message sent to the main control board is protected, do current limiting processing.
Many series devices have this phenomena, the device is a distributed architecture, its own traffic has safety protection, so there may be some delay in access to its own traffic, are belong normal situation.