Problem Details: I have an existing stack of 4 x 3750G switches, which connects servers,
workstation and phones for a client. The company will drastrically grow in the next 3
months from the current capacity to 70 users requiring about 4 network points each. In
addition their server environment will grow, currently using 18 physical servers (2 NIC
each server) and a project to move to virtualisation using HP Blade Servers, connecting at
1GB or 10GE ethernet.
I would like to know what is the best path to make the current switching environment
scalable, maximising the performance and network capacity without necessarily going down
to the Cisco 4500 series switches route.
My idea was to buy a couple of Cisco 3750E-24 series and another stack of 4 x 3750G-48
switches which I will etherchannel to the 3750E. The 3750E will became core switches which
will perform routing, VLANs, while the 3750G stack will only act as access layer
switch using IP-base images. The existing 3750G stack will be Trunked (etherchanneled) to
the 3750E switches same way as the new stack. By doing this I will have 1 core stack of 2
x 3750E and 2 stacks of 4 x 3750G each.
My plan was to connect, workstations, phones, dealerboards, printers and other devices to
the access layer switches (3750G) while all servers and blades to the 3750E directly
for performace reasons
Is this solution viable and sufficiently scalable?