Obligatory iperf output from Macbook Air over 5GHz 802.11n to a Linux machine connected via gigabit ethernet to a latest-generation Airport Extreme:
[ ID] Interval Transfer Bandwidth [ 4] 0.0-10.0 sec 181 MBytes 152 Mbits/sec Dan On Sat, Oct 22, 2011 at 8:14 PM, Edward Ned Harvey <lop...@nedharvey.com>wrote: > > From: tech-boun...@lists.lopsa.org [mailto:tech-boun...@lists.lopsa.org] > > On Behalf Of Bill Bogstad > > > > Plenty of devices > > only have 100Mbit wired ports even while advertising 300Mbps wireless > > speeds. > > Actually, 802.11 is about 50% wasted overhead, even in a perfectly clean > environment (where you use insulated coax to directly wire the antenna of > one system to the antenna of another system). In reality, there is noise > and slower traffic, which slows everybody down because the bandwidth is > shared. > > So only in the absolute perfect world, full of free drugs and hookers > handing out money and winning lottery tickets, using present technology, > could you even *dream* of going any faster than 100Mbit on 802.11. When > they advertise 300Mbit+, it's pure marketing, raw idealistic bandwidth, not > even close to measurable usable or realistic bandwidth. > > _______________________________________________ > Tech mailing list > Tech@lists.lopsa.org > https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech > This list provided by the League of Professional System Administrators > http://lopsa.org/ >
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