Retro networking / WAN communities

Grant Taylor cctalk at gtaylor.tnetconsulting.net
Tue Apr 12 14:17:57 CDT 2022


On 4/12/22 11:44 AM, Todd Goodman via cctalk wrote:
> To me a hub is a layer 1 device (physical layer) that doesn't look at 
> the traffic at all while the bridge does look at the traffic and 
> generally implements 802.1d Spanning Tree Protocol and processes BPDUs.

I think that you touch on a very germane point.

Hubs operate at L1.
Switches operate at L2 (and L1).
Routers operate at L3 (and L2 and L1).

I've seen MANY L2 switches that didn't implement STP.  The 
quintessential Linksys / Netgear / Dlink 4~8 port switch comes to mind.



-- 
Grant. . . .
unix || die


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