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bandwidth calculation from pps

suthomas1
Level 6
Level 6

Hi,

We are trying to ascertain how much bandwidth in Mbps or Gbps is flowing through a device. This different vendor device only shows packet per second rate in its interface.

Can someone please help on converting pps to Mbps or Gbps.

Thanks for inputs!

1 Accepted Solution

Accepted Solutions

Hi,

Lets say that the interface shows 10 pps
Lets say the packet size 100 bytes

So that would give 10 x 100 = 1000 bytes per sec

A byte = 8 bits

So 1000 bytes/sec = 8000bits/sec

++++++++++++++++++++++++++++++++++++++++++++++++++++

Now use your figures

164673pps x 256 bytes = 42156288 bytes/sec
42156288 x 8 = 337250304 bits/sec = 337.250304Mbits/sec

Hope this makes sense

Regards,
Alex.
Please rate useful posts.

Regards, Alex. Please rate useful posts.

View solution in original post

3 Replies 3

Joseph W. Doherty
Hall of Fame
Hall of Fame

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Posting

To convert PPS to bps, you would need to know each packet's size.  Additionally, PPS to bps varies per media.

As PPS to bps varies very, very much based on packet's size you could guesstimate a bps if you assumed an average packet size.

For example, if you assume your average packet size is 256 bytes, which is 2K bits, just multiple that by your PPS.

So, for example if the pps shown on the device interface is 164673, this multiplied by 256 gives 42156288.

I am bit confused on how to convert this figure to Kbps or Mbps.

Hi,

Lets say that the interface shows 10 pps
Lets say the packet size 100 bytes

So that would give 10 x 100 = 1000 bytes per sec

A byte = 8 bits

So 1000 bytes/sec = 8000bits/sec

++++++++++++++++++++++++++++++++++++++++++++++++++++

Now use your figures

164673pps x 256 bytes = 42156288 bytes/sec
42156288 x 8 = 337250304 bits/sec = 337.250304Mbits/sec

Hope this makes sense

Regards,
Alex.
Please rate useful posts.

Regards, Alex. Please rate useful posts.