I've found that Juniper EX SFP+ ports work fine with $other_vendor's DAC cables connected to $other_vendor's equipment (and vice-versa with Juniper DAC cables) at the same time those SFP+ ports won't work with anyone else's optics (and likewise for many other vendors). I believe the same occurs on QFX, but not sure about 10G SFP+ ports on SRX.
Since DAC cables are technically NOT "optics," the statements that you cannot use non-Juniper optics in QFX3500 but that you can use non-Juniper DAC SFP+ cables should both hold true. Curious. I wonder if it's possible for $sinister_vendor to have a means of detecting the make of the far-end device on a DAC cable connection and lock out the port if the local and distal ends are both $sinister_vendor but the DAC cable is from $other_vendor (and maybe already patented!). Paul Zugnoni On Jan 6, 2012, at 14:59 , Chuck Anderson wrote: On Fri, Jan 06, 2012 at 01:26:19PM -0500, Jeff Wheeler wrote: We just received our first QFX3500s, and contrary to what the Juniper SE told us, they will not work with non-Juniper optics. Is there some clever, undocumented means of using third-party optics in these switches? JTAC says it will "never" be compatible with non-Juniper SFP+. Right now it looks like we will be sending them all back and going with another vendor. Glad I wasted my time doing Q&A with the sales engineer.. :/ That's nuts. What if you have a different vendor at the other end of a Direct Attach Copper SFP+ cable assembly that does the same thing? _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net<mailto:juniper-nsp@puck.nether.net> https://puck.nether.net/mailman/listinfo/juniper-nsp _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
