We have a a pair of ASA 5510's in Active/standby connected to another pair of 2960 switches. One switch is connected to FW1 and the other to FW2. The switches are connected to each other using etherchannel for redundancy. Servers are NIC teamed and connected to SW1 and SW2.
We're quickly running out of ports on these switches and looking to expand our network throughput at the same time. I want to add a pair of 10 gig switches to the mix, however I'm not sure how to add them while maintaining redundancy.
What's the best way to connect these switches? If I connect say SW3 to SW1 and SW2 to SW4 via etherchannel trunks can/should I connect SW3 and 4 together as well?
Thanks in advance!