Internet Building topology

[Stephen Balbach <stephen () clark net>]

Hi,

I am designing an "Internet Building" concept using ethernet. Below is a 
model using 2 cisco Catalyst 1912's (12 port ethernet switch) and a 
cisco 2501.

Switch 2 is on the 2nd floor and Switch 1 is in 1st floor. Does this 
look like a viable topology? Are there other/better ways to approach 
this for scaleability? Thanks for any ideas/experiences.


        x.x.x.0  /26 (Customer 2nd floor)
        |
        |   x.x.x.64 /26 (Customer 2nd floor)
        |   |
        |   |
        Switch 2 (2nd floor)                    
        A | B | C       VLAN 1 = A+C 
                |       VLAN 2 = B+C 
                |
                |
                | (cable drop between 1st and 2nd floor)
                |
                |
                |
        Switch 1 (first floor)
        A | B | C       VLAN 1 = B + C
            |           
            |
        cisco (first floor)
        ip secondary x.x.x.0  /26
        ip secondary x.x.x.64 /26
            |
            |
            |
       T1 to Internet
            |
            |