Subject: Re: Transmit rate of ath interface
To: Paulo Alexandre Pinto Pires <firstname.lastname@example.org>
From: Steven M. Bellovin <email@example.com>
Date: 01/27/2005 20:29:02
In message <20050127140013.GA13905@domine.ppires.org>, Paulo Alexandre Pinto Pi
>I am performing tests to replace an old 10BASE2 network with a
>54Mbps WLAN. The NetBSD machine in this test setup runs -current
>as of 2005/01/25, with a D-Link DWL-G520 PCI card.
>In the tests I've done so far, I have a Windows XP machine with a
>DWL-G520+ (Texas Instruments ACX-based PCI card) talking to the
>NetBSD machine in 11g ad hoc mode. Windows claims to be talking at
>54Mbps, and I am inclined to believe it, as wlanctl in the NetBSD
>machine shows "[54.0]" in the "rates" line in the entry for the
>interface of the Windows machine.
>However, I don't know the transmit rate for the NetBSD machine it-
>self, and the very low speed (slower than that of the 10BASE2 net-
>work) in many different applications tested so far (e.g. FTP, HTTP,
>SMB, ping etc.) makes me think that either NetBSD is operating with
>low Tx rate, or Windows is lying (and wlanctl too), or 11g also
>So the question is: how can I check/change NetBSD's Tx rate? I
>don't clearly see it anywhere in wlanctl(8) manpage, nor in
ifconfig(8) or wiconfig(8).
See the mode parameters to ifconfig.
--Prof. Steven M. Bellovin, http://www.cs.columbia.edu/~smb