I'm resisting the overwhelming urge to say something like "So there's not a problem?" but the two L3/L2/Router/switch discussion are just so darned informative!
I think there's a bit of a hole of confusion that I fell into the first time I consoled onto a 2950 and had to configure it. Every interface said "no ip address" and vlans could be real interfaces with IP addresses. Its around that moment that you forget they *can* still be layer 2 devices :) -----Original Message----- From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] Sent: Tuesday, 18 February 2003 11:53 AM To: [EMAIL PROTECTED] Subject: RE: Understanding VLANs - how they remove the phys [7:63196] Emilia Lambros wrote: > > Why can't the L3 switches be run as L2 switches (ignoring the > routing capabilities) in that situation? If those two switches > were connected in that case, then connected to the core, > wouldn't that solve the problem of a gateway being 3 or 4 L3 > switches away? Your default gateway can be any number of L2 switches away from you. It just has to be in your subnet, VLAN, broadcast domain. Priscilla > > -----Original Message----- > From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, 18 February 2003 9:15 AM > To: [EMAIL PROTECTED] > Subject: RE: Understanding VLANs - how they remove the physical > [7:63173] > > > Stephen Hoover wrote: > > > > back to switch A to get his routing to > > the servers? > > Why would you EVER want a network configured this way?? Or > even > > worse, what > > if your respective gateway was 3 or 4 L3 switches away? > > Your gateway can't be any L3 switches (routers) away. It has to > be on your > LAN. It has to be in your subnet. It has to be in your > broadcast domain. It > has to be in your VLAN. For one thing, a host ARPs for its > default gateway. > ARP uses broadcast. > > I just noticed your comment and wanted to add my comment. > Without being able > to decode your drawing, it's hard to tell exactly how to > answer, but I'm > just trying to get you to think about what really happens to > packets on a > campus network. The network design you're considering isn't just > impractical. It won't work, if I understand it correctly. > > Priscilla > > > > > That > > just doesn't > > seem practical to me. > > > > > > Thanks! > > Stephen Hoover > > Dallas, Texas Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=63222&t=63196 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]