On Jun 9, 2014, at 9:00 PM, PE wrote:

> But isn't congestion caused by bytes and not number of packets? So, by that 
> argument, larger packets will fill the queue faster than smaller and thus 
> have a higher propensity to drop? And when it does, it is a bigger chunk of 
> audio so it could actually reduce quality rather than improve it. 

Not always.....

If you look at the details of a lot of the hardware and software forwarding 
setups on network gear, you'll find that there's an outgoing buffer that 
packets go into if the port is already busy transmitting a frame.  Those 
buffers are typically sized such that they can hold a certain number of packets 
of MAX MTU for the device or interface, and it doesn't matter if it's 80 bytes 
of voice frame or an 8Kbyte jumbo frame going into the TX queue.

Of course QoS rules, congestion control mechanisms, WRED, and all sorts of 
other things can muck with the way a queue is serviced or filled, so YMMV, 
RTFM, etc.

--Chris
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