netdev - what are txqueuelen and nic ring parameters exactly?

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Date:	Mon, 10 Jan 2011 00:38:16 -0500
From:	MK <stardust496@...il.com>
To:	netdev@...r.kernel.org
Subject: what are txqueuelen and nic ring parameters exactly?

Hello,

I often come across two variables that can be tuned for networking -

1) txqueuelen (via ifconfig )
2) NIC ring parameters for tx and rx (via ethtool)

Can someone please tell me where these queues are exactly? Are both
the same (seems not since their current values are different on my
computer) . Is txqueuelen somehow part of the linux networking
subsystem whereas the other is purely a h/w device construct?

Thanks a lot!
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