Will SFP modules from different mfgr's communicate with eachother?

Hey everyone, I'm planning a network upgrade to add redundancy and I'd like to roll out a few HP switches in parallel with the existing Netgear devices. I'm wondering though, if I have an HP SFP module on one end of the fiber link and a Netgear module on the other will they talk with each-other? For eg. part numbers are Netgear AGM731F and HP J4858C. I believe they will as they are both using the same 1000base-SX ethernet over fiber at the same wavelength, but I wanted to make sure there wasn't some vendor specific game going on there (like the way HP switches will only play nice with HP and HP compatible SFP modules). Thanks in advance!
jostafewSystems AdministratorAsked:
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We connect Cisco and 3Com switches over 100FX sfp's and they work ok. In your case they are both working to the 1000base-SX standard and they should also work.
Jan SpringerCommented:
If both pieces of equipment follow industry standard and the termination at both ends is the same, then you should not expect any problems.
jostafewSystems AdministratorAuthor Commented:
Yes that's what I'm trying to determine, whether they follow industry standard. On the surface of it things look compatible but I'd love to hear from someone who's using an HP fiber module on one end an something else on the other (I believe Netgear is using open stadards)
jostafewSystems AdministratorAuthor Commented:
Going ahead with my mixed vendor solution (rather than replacing existing equipment). Thanks for the input.
jostafewSystems AdministratorAuthor Commented:
In case anyone is reading this I can confirm that an HP switch will talk to a Netgear switch, at least with the following equipment:

HP Switch using AddOn SFP module  <->  Netgear Switch using AddOn or Netgear SFP mdule. I've tested this scenario with a couple installations now, no issues at a basic level... STP on the other hand the two devices didn't like eachother, but that would likely have failed over copper as well.
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