while this doesn't really address an 'intermittent' problem I thought I would ask it anyway... Have you properly assigned the gateways? What are the results of a traceroute?
> I'm having some difficulty finding out what could be the problem in the > following scenario. > > http://members.shaw.ca/jonno/Images/misc/lan_diagram.jpg > > Switch1 is attached to Switch2 via a straight CAT5 cable, the Switches > each have Auto mdi/mdix capability and are both different brands (SMC 5 > Port and Eusso 5 port). Any PC attached to Switch1 that tries to ping > the server will receive intermittent replies. > > http://members.shaw.ca/jonno/Images/misc/the_ping_results.JPG > > From the server you can ping anything on the internet. It has 2 NICs > in it, one connected to the cable modem and the other connected to > Switch2 (eth0 and eth1 respectively) (NOTE: The server is *NOT* where > the problem lies, my suspicions lie with the communication between the > two switches.) <-- The reason for these suspicions is because when I > plug the CAT5 cable that connects these two switches directly into the > cable modem I can get an IP address from my ISP and browse the internet > normally. This is how I'm able to send this message. (The cabling is > fine, all the wiring has been crimped according to the 568B wiring > standard. And since I can see the internet when Switch1 is directly > attached to the cable modem it can't be a wiring problem between Switch1 > and the Cable Modem or Server) > > Since both Switches support auto-crossover (mdi/x) on each port they > should be able to be daisy-chained together using a normal cable (I've > also tried a crossover cable). So in essence any PC's connected to > Switch1 *should* be able to talk to any PC's connected to Switch2. And > this is not what is happening, well, the ping replies shown above tell > us that communication between Switch1 and the server is happening > intermittently for some obscure reason. This is where the problem is. > > I have swopped the two Switches around and I get the same problem. My > conclusions lead me to believe that the problem arises when the two > switches are connected with each other, IE, any PC on Switch1 cannot > *fully* talk with any PC on Switch2. > > Previous to this the network was working fine as all the PC'S including > the server were attached to one Switch so there was no 'daisy-chaining' > involved. > > Is there something that I'm missing out or something that I'm not doing? > > -j- > > > _______________________________________________ > clug-talk mailing list > [EMAIL PROTECTED] > http://clug.ca/mailman/listinfo/clug-talk_clug.ca > _______________________________________________ clug-talk mailing list [EMAIL PROTECTED] http://clug.ca/mailman/listinfo/clug-talk_clug.ca
