On Monday, January 18, 2021 8:57:38 AM CET Raffaele BELARDI wrote:
> > -----Original Message-----
> > From: Jack <ostroffjh@users.sourceforge.net>
> > Sent: Saturday, January 16, 2021 22:00
> > To: gentoo-user@lists.gentoo.org
> > Subject: Re: [gentoo-user] network transfer speed
> >
> > I may be way off base here, but if the switch is connected to a router,
> > packets from one PC go to the switch and then to everything else connected
> > to it, including both the other PC and the router. Is there any chance
> > the
> > router is passing packets back to the switch to get to the second PC? I
> > can imagine that causing lots of problems. However, I would hope it is
> > smart enough to know it doesn't need to do so, since both PCs show up on
> > the same router port.
>
> A switch uses the Ethernet MAC destination address to forward a packet only
> on the 'interested' ports. What you describe would be a 'hub' [1], I don't
> think it's easy to find one of those on recent networks.
>
> Raffaele
>
> [1] https://en.wikipedia.org/wiki/Ethernet_hub
Some cheaper switches fail-over to hub-mode when the traffic exceeds what it can
manage.
--
Joost
> > -----Original Message-----
> > From: Jack <ostroffjh@users.sourceforge.net>
> > Sent: Saturday, January 16, 2021 22:00
> > To: gentoo-user@lists.gentoo.org
> > Subject: Re: [gentoo-user] network transfer speed
> >
> > I may be way off base here, but if the switch is connected to a router,
> > packets from one PC go to the switch and then to everything else connected
> > to it, including both the other PC and the router. Is there any chance
> > the
> > router is passing packets back to the switch to get to the second PC? I
> > can imagine that causing lots of problems. However, I would hope it is
> > smart enough to know it doesn't need to do so, since both PCs show up on
> > the same router port.
>
> A switch uses the Ethernet MAC destination address to forward a packet only
> on the 'interested' ports. What you describe would be a 'hub' [1], I don't
> think it's easy to find one of those on recent networks.
>
> Raffaele
>
> [1] https://en.wikipedia.org/wiki/Ethernet_hub
Some cheaper switches fail-over to hub-mode when the traffic exceeds what it can
manage.
--
Joost