I have 2 units core swicth C4510R+E SUP7-E need to connect together for redundant purpose , i bought also 4X 10GE uplinks for each core switches .
May i know how i shall connect both core switches together using my spec Catalyst 4500 E-Series 12-Port 10GbE (SFP+) ?
The best method to connect two switches is using VSS. Unfortunately, VSS for the Sup7E is "not yet" available. There are rumours about something coming out before the end of December 2012. Otherwise, the IOS that will support VSS on a Sup7E might come out on March 2013.
For the time being, you can settle with HSRP/VRRP.