In your experience do you see people implementing teamed NIC's and taking advantage of failover features very often on the Cisco 3750 stackwise switches for example?
I hear stories from multiple network operation folks that NIC failures become more and more rare and increasingly people are not bothering to setup dual NIC's in order to take advantage of server redundancy. In addition, the cost of using an additional port in the switch is also significant.
Right now I need to purchase a Cat 3750 and since currently most of servers in thte production environment do not have dual NIC's available, it seems I cannot make my case to buy the 3750 stack. I think I will buy just a single 3750.
Is that a trend?
Whilst i can see Paolo's point i would argue that it is not as cut and dried as this.
For example if you have a data centre environment where you have redundant switches, firewalls, load balancers etc and you have a critical database server that only connects to one of a pair of resilient access-layer switches.
Even if the NIC on the server doesn't go down what if the switch does. If you dual hone the database server then if one of the switches goes down you have an alternate path for the server.
A lot depends on the criticality of your servers. Can you say that the cost of a second 3750 switch and a second server NIC outweighs the potential cost of the server being unavailable.