[c-nsp] easy question, PPS v Megabits

Robert D. Holtz robert.d.holtz at gmail.com
Tue Aug 22 10:51:20 EDT 2006


There isn't a quick way to relate the two.  Since packet sizes vary
depending on the data steam all you can do is guestimate. 

One of the main reasons you see the two always being broken out is that
bandwidth itself isn't what really keeps a device busy ... it's the packet
processing.  You can have a very high PPS rate with small packets and get no
where near your available bandwidth if the router is buried with packet
processing.  

The opposite would be true if the device were processing all large packets
... the bandwidth could get saturated while the router still has the
horsepower to process more packets.

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Scott Granados
Sent: Tuesday, August 22, 2006 9:36 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] easy question, PPS v Megabits

Could someone break down real fast the relationship between a number
like 100 megabits of traffic V. 170 K PPS.  How do packets per second
relate to bandwidth or is there an easy way to relate the two?

 

Thanks

Scott

 

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