Retro networking / WAN communities

[Paul Koning]

> On Apr 12, 2022, at 1:44 PM, Todd Goodman via cctalk <cctalk at classiccmp.org> wrote:
> 
> On 4/12/2022 1:28 PM, Grant Taylor via cctalk wrote:
>> On 4/12/22 7:56 AM, Todd Goodman via cctalk wrote:
>>> The big difference in my mind between bridge and switch is:
>>> 
>>>   * Switches learn what port given MACs are on and only sends unicast
>>>     traffic destined for that MAC address on that port and not all
>>>   * Bridges send unicast traffic to all ports
>> 
>> So what would differentiate the bridge (using your understanding) from a hub?
> 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.

For 802.3, a physical layer relay is called a repeater.  Other LAN types, if they have such things, may use other names; for example FDDI calls it a concentrator.  

	paul