I am designing my fully 10g datacenter access layer with a pair of 5548UP switches in an EvPC and a pair of dual homed 2232PP FEX's. I need to be able to uplink my pair of 5500's up to my pair of 4510R classic aggregation switches. Each 4510R has two SUP V supervisors, each with two 10g X2 ports. I have a dual 10g trunk in a port channel between each 4510R.
What is the ideal method for uplinking from the 5500's to the 4510R switches? As far I understand only one out of the two 10g ports on each Sup V can be active. Should I dual home each 5548 to each 4510R and let STP do its thing? Am I able to do that with my SUP V's? And if so, will I still be able to trunk dual 10g ports in a port channel between the two 4510R switches? I need to maintain a large pipe between the aggregation swithces for my regular campus traffic that does not traverse to the datacenter.
well since you can not cluster the 45K as a virtual switch ( Cisco with new sup will start support VSS in the 4500 try to check which sup exactly and if you can upgrade as this will make a significant improvement to your design )
anyway the only method that you can use currently is the traditional way which is depending on STP ( use rapid-PVST)
from each N5K use one separate link to each 45K and STP will put on of the links in blocking mode
however you might do some STP and vlan design for load sharing where you can send vlan x over link1 and vlan y over link b to the 45K using STP cost