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Date: Wed, 02 Jul 2014 19:29:53 +0200 (CEST)
Message-Id: <20140702.192953.41693242.sthaug@nethelp.no>
To: jeffrey.e.pieper@intel.com
Subject: Re: Network Intel X520-SR2 stopping
From: sthaug@nethelp.no
In-Reply-To: <2A35EA60C3C77D438915767F458D65687E8F8658@ORSMSX111.amr.corp.intel.com>
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> It depends on the spec of the XFP module, as well as the cabling. The spec of both types of modules needs to match. I asked the OP to test B2B to eliminate the XFP as the problem.  If you have any suggestions, I'd be happy to hear them. 

Obviously transceivers and cabling need to match - SR against SR, LR
against LR, etc. However, whether the 10GBase-X signal is generated by
an XFP transceiver or an SFP+ transceiver is irrelevant, as long as it
follows spec ...

Steinar Haug, Nethelp consulting, sthaug@nethelp.no