High Availability - Server Backbone to Core

[hutcha4113]

Not sure if I am using the correct terminology, but I am investigating setting up a HA server backbone. Here is our current setup:

• 2 x Cisco 3560 Switches.
  
• Connected to a ganged 3750 at the core.
  

Each of the Server Room Switches is essentially independant. They each have their own LAN port to the core, etc. What I would like to do however is:

1. Since all our Servers have dual NIC ports - Connect NIC 1 to Server Switch 1, and NIC 2 to Server Switch 2 - load balancing (would that work).
   
2. Make Server Room Switch 1 redundant to Switch 2, and vice versa.
   
3. Redundant connections to the Core
   
4. No reduction in throughput/speed.
   

This may be a little complicated for me to setup, but I would appreciate if anyone can share their knowledge/configs.

[Reza Sharifi]

1. Since all our Servers have dual NIC ports - Connect NIC 1 to Server  Switch 1, and NIC 2 to Server Switch 2 - load balancing (would that  work).

If the access switches are 3560s than you can't do this.  If the access switches are 3750s (STACKED), than you can.

HTH