[olug] victory and defeat w/Linux router @work

[Sean Edwards]

Ah . . . since switching is actually a type of
bridging, the 5-4-3 rule doesn't really apply here. 
That rule is for shared ethernet.

Sorry.

-=Sean=-

--- "Miller, Scott L (Omaha Networks)"
<scott.l.miller at hp.com> wrote:

> Thanks Sean, using that in a google search found the
> following
> link: http://www.rhyshaden.com/ethernet.htm  scroll
> down aways to
> the section titled "4.5 Fast Ethernet (802.3u)
> 100BaseTx".
> 
> -Scott
> 
> -----Original Message-----
> From: olug-bounces at olug.org
> [mailto:olug-bounces at olug.org]On Behalf Of
> Sean Edwards
> Sent: Thursday, October 14, 2004 2:55 PM
> To: Omaha Linux User Group
> Subject: RE: [olug] victory and defeat w/Linux
> router @work
> 
> 
> It's called the 5-4-3 rule.
> 
> -=Sean=-
> 
> --- "Miller, Scott L (Omaha Networks)"
> <scott.l.miller at hp.com> wrote:
> 
> > Charles wrote:
> > > Off of the second port coming out the 2600 is
> the 
> > > cable to our switch, which is a netgear 16port,
> > everything 
> > > on this switch is fast as heck....we ran about
> > 100M of cat6 
> > > a couple weeks ago to our main building....it
> > meets up with 
> > > another netgear switch, i think its a 24port. 
> > then daisied 
> > > from that is another 2 24port netgears.
> > 
> > First thing, Fast Ethernet has a "diameter limit"
> > and a 
> > "daisy chain limit".  The diameter limit is based
> on
> > how long
> > it takes for a signal to get from one end of the
> > network to
> > the other.  I believe the daisy chain limit is
> > closely tied
> > to this "diameter" thing, but couldn't find a
> > reference 
> > quickly before replying.  But, you might be at or
> > past the
> > limits if what you've got is this:
> >    router---switch---switch---switch---switch
> > 
> > What you should aim for is something like this:
> > 
> > 	router--------switch------switch
> >                      |  |
> >             switch---    ---switch
> > 
> > The other thing to check is to make sure all the
> > uplink
> > ports are hard set to 100Mbps Full Duplex.  If any
> > of them
> > don't autonegotiate properly, even 100/half
> greatly
> > affects
> > the apparent network speed.
> > 
> > -Scott
> > _______________________________________________
> > OLUG mailing list
> > OLUG at olug.org
> > http://lists.olug.org/mailman/listinfo/olug
> > 
> 
> 
> 
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