VanLUG Email Archive
Ya`akov N Miles (ynmiles@telus.net)
Tue, 22 Feb 2000 12:00:12 -0800
Dale McGladdery wrote:
>
> > the auto-sensing is clearly a benefit, if it is so, however i have been
> > told that switches are slower than hubs when it comes to heavy data
> > transfer, such as might occur while doing video editing. do you know if
>
> The switches I've seen use a feature called "cut through". The front of the
> packet begins leaving the switch before the end of the packet is completely
> received, reducing latency. It may be that lower end switches don't have
> this feature.
>
> As stated previously, switches are more network friendly. (They also limit
> packet sniffing, if security is an issue.) In the "bake off" tests I've seen
> published for "the big guys" (Bay (Nortel)/Cisco/3Com etc.), all the
> switches were able to keep up to full load at 100 megabit/sec. on multiple
> ports. Again, this might not be true of the low end switches.
Switches *do* limit packet sniffing, its a pity ADSL doesn't use switches.
I have no problem with my EtherFast 10/100 Linksys switch model EZXS88W
being able to keep a full load at 100 megabits/second half duplex, or
200 megabits/second full duplex with multiple connections active. My
frame size is 1536 bytes, and the internal EZXS88W buffer space is 4
megabytes. The switch also does preamble regeneration which may mean
it can send "cut through" packets. A steal at $300 from London Drugs;
less elsewhere. see http://www.linksys.com for more details on switch.
-- Linux - because a PC is a terrible thing to waste. mailto:ynmiles@telus.net Note http://www.cheapbytes.com for (almost) free Linux & freeBSD CD-ROMs and http://www.overclockers.com to get the MOST from your computer Website http://www3.telus.net/Yaakov/index.html-- This message came to you via the Vancouver Linux Users Group mailing list. For unsubscription instructions do not email the list, but rather send mail to <vanlug-request@gweep.bc.ca>.
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