10-10-2011 01:30 AM - edited 03-07-2019 02:42 AM
Hi all
I have a question about pps.
see the below.
=====FE#1=========(Router)======FE#2===
Router has two fast-ethernet, FE#1 and FE#2
and has sup720-3bxl engine.
sup720-3bxl supports up to 400Mpps with DFCs.
I wonder what's the pps exactly?
if one packet is incomming Router from FE#1 and out to FE#2
in this case, is it 2 pps? or 1 pps?
is PPS a sum of incomming packet count and outgoing packet count? => 1+1=2pps
or a counter through the router(in and out packet==1)?
Solved! Go to Solution.
10-10-2011 01:33 AM
Hi,
pps is just a counter divided by timeslot like bps and it is per interface and per direction.
Regards.
Alain.
10-10-2011 02:53 AM
Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
PPS measures what it stands for, i.e. how many packets are forwarded per second.
Unlike bits per seconds, since packets vary in size throughput varies at the same PPS rating.
For example, for 10 Mbps Ethernet minimum size frames (64 bytes) require 14,880 pps but maximum size frames (1518 bytes) require 812 pps.
The foregoing is for traffic in one direction, for duplex the PPS would need to be doubled.
10-10-2011 01:33 AM
Hi,
pps is just a counter divided by timeslot like bps and it is per interface and per direction.
Regards.
Alain.
10-10-2011 02:53 AM
Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
PPS measures what it stands for, i.e. how many packets are forwarded per second.
Unlike bits per seconds, since packets vary in size throughput varies at the same PPS rating.
For example, for 10 Mbps Ethernet minimum size frames (64 bytes) require 14,880 pps but maximum size frames (1518 bytes) require 812 pps.
The foregoing is for traffic in one direction, for duplex the PPS would need to be doubled.
10-11-2011 04:40 PM
Thanks Joseph
it's a good help to understand about this.
and hope to have a good day v
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