I previously included this in a more complicated query (“Interoperable ASR1000 XFP for SFP-10G-LRM ?”) that didn’t generate any responses, so here is the revised question: Will a SFP-10G-LRM interoperate with a SFP-10G-LR if I connect using single mode fiber? (Fiber length would not exceed 100 meters.) Power and wavelength specifications for the two SFP+ modules seem to indicate that they would work together: http://www.cisco.com/en/US/prod/collateral/modules/ps5455/data_sheet_c78-455693.html I’m just concerned that there could be some protocol differences. Otherwise I’m not sure why there would be two different standards, i.e –LR and –LRM. I checked the "definitive source for everything" and that didn’t clarify LR/LRM interoperability either: http://en.wikipedia.org/wiki/10-gigabit_Ethernet Thanks. Phil
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I have a 4507R+E switch with SFP-10G-LRM (in WS-X45-SUP7-E) that I want to connect to an ASR1006 with SPA-1X10GE-L-V2. What XFP can I use to implement my required 10G uplink? I'm looking at XFP-10GLR-OC192SR [with signle mode fiber], but I don't know if that is interoperable with SFP-10G-LRM. I suspect the XFP-10GLR-OC192SR would work with a SFP-10G-LR but I have already invested in the SFP-10G-LRM. As an aside, will my SFP-10G-LRM interoperate with a SFP-10G-LR if I connect using single mode fiber?
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