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

[Charles Bird]

Thanks for the info, I did discover a bad connection and a 
rj45 connecter that was AFU. This fixed it and the network 
is now up and running pretty good. I have yet to test the 
actual speed between machines and to/from outside but it 
seems pretty fast on the newer machines. 
 
 
 
 
----- Original Message ----- 
From: Sean Edwards <cybersean3000 at yahoo.com> 
To: Omaha Linux User Group <olug at olug.org> 
Subject: RE: [olug] victory and defeat w/Linux router @work 
Date: Thu, 14 Oct 2004 13:54:34 -0700 (PDT) 
 
>  
> 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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