I'm looking at a data center of a company that has a huge enterprise network. The server farm uses a switched access layer and a collapsed core comprised of two 6509 switches. They have about 200 IOS SLB instances, with probes, configured in that core layer. These are old CatOS switch with dual SUP 2s.
From what I can recall, IOS SLB traffic is process switched, isnt it? Now, given the caveat that I dont know much about this environment and its requirements, I cant, nonetheless, help but view this environment as being in desperate need of an upgrade in hardware, but also a redesign that is more scalable and appropriate for an enterprise-grade server farm.
My opinion of IOS SLB is that it can come in handy in the absence of a real load balancing appliance, or even a switched module in the chassis, but it is really a poor-man's verion of SLB that should be used more judiciously than 200 separate instances.
Any thoughts on this from anyone? Would love to hear different opinions...