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FAQ-How to know the amount of lost packets in a switching time

Publication Date:  2012-07-25 Views:  56 Downloads:  0
Issue Description
A customer need to knows the amount of lost packet ethernet during a switching time in its SDH ring.
Alarm Information
Null
Handling Process
The amount of lost packets is equal to:
Lost packets = Switching_time * BW / ( Packet_length)
it is necessary to make the conversion between the respective units.
Such as:
Switching time [ms] -->Switching time [s] *10e-3
BW [Mbps] --> BW [bps] *10e6
Packet_length [bytes] --> Packet_length [bits] *8
Root Cause
The amount of lost packets in a switching time depended on the following parameters:
* Switching time
* Bandwidth = BW
* Packet Length (ETH)
Suggestions
Its necessary to keep in mind  that processing time in the boards is not included, and the result  is a estimate

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