Wired Intelligent Edge

Just trying to determine if I need STP and HP Loop-protection enabled together. All my switches support loop-protect, however in testing I find that if I loop the switch by plugging into itself, loop-protect will somtimes take over and other times STP will. Any help is appreciated.

They do two different things.

I was never that interested in Loop Protect until the day an incident occurred that would have been prevented by it....

So nowadays, I'll put on STP, BPDU protection, Loop Protect, DHCP snooping, make sure IGMP snooping is on and querier is disabled (except on the core(s)).

UDLD has come in handy with HP 10Gb GBICs, and that's another one I hadn't bothered with until the GBICs started failing.

loop protect goes in hand with spanning tree.  Spanning tree detects BPDU from other switches, however there are times where unmanaged switches (like netgear) will get plugged in and spanning tree doesn't detect it.... loop protect can help prevent that.  

for the 10GIG links, you have a configuration for that UDLD  ?

and also for the STP, Loop protection,bpdu protection, DHCP snooping, igmp snooping ?

would be nice to see if i am doing those right?

atm i use

STP - Loop protection - BPDU protection only.