Retro networking / WAN communities

Wayne S wayne.sudol at hotmail.com
Tue Apr 12 14:25:38 CDT 2022


There was a pretty good discussion in the early 90’s about OSPF vs SPANNING TREE about which wad most efficient.

Sent from my iPhone

> On Apr 12, 2022, at 12:17, Grant Taylor via cctalk <cctalk at classiccmp.org> wrote:
> 
> 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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