On 15 Jun 2001 16:20:39 -0400, Kelly French wrote: > What do you consider a hub that does both 10mbs and 100mbs? What do you > consider bridges? Are they 'hubs' or 'switches'? A switch is a transparent bridge as defined by 802.1 - it is most certainly not a source-routing bridge as defined by 802.5. Historically people have called anything with 2 ports a bridge, and anything with more a switch, although there certainly existed 'bridges' with more than two ports at one time. The terms can now be used intechangedly, although switch is the common terminology now. > As far as I know, a dual speed hub acts as a 2 sided switch (or you can > call it a bridge) between the 10mbs and 100mbs stations. i.e. all of the This is correct. It's basically a hub with two backplanes, which are switched against each other. It's a bit more complicated than that, of course, since any port can be any speed, but that's the basic gist of it. > This is what I think the original posters problem is. He's got both 10 > and 100mbs stations and isn't sniffing from the same 'speed' port. Yes, that could be his problem, although we don't (didn't) know that he's got one of these boxen. In any case, it's really a matter of semantics. A hub *cannot* be intelligent, so intelligent-hub or switching-hub is ranther an oxymoron. In any case, I assumed the original poster knew the difference between a hub and a switch (given that there was one device labeled hub and one labeled switch), although they could have forgotten to mention they had a dual-speed hub. Anyhow, did we actually solve anyone's problem, or are they still out there wondering why they can't sniff traffic? -- Nick Bastin - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org
