I am looking for some recommendation / design advise on establishing redundancy for 2 new switches in the access layer.
I currently have two 6509e switches in the core/dist layer.
These two switches are connected via a port channel trunk
I now have 2 new 6509e switches that are going to be used as the access layer for all the user workstations.
I am looking to breakup the user environment over several different vlans.
What are some ways or what is the best way to accomplish redundancy in the case of failure to one of the Core/dist switches?
I will obviously connect to both of the core/dist from each access switch but wondering if I should consider Layer3 LAG to the core via portchannel. Will this eliminate having to use Spanning tree for failover if I go with Layer 2 trunks to the core/dist?
I appreciate any advise/insight into a good solution.