We did happen upon an issue where using the LX/LH moudules over 50um MMF over distances around 200m-250m where we discovered DMD (Differential Mode delay) and had to use relatively costly mode-conditioning patch cables to confirm the condition.
The symptoms that led to this discovery were fairly limited to "input errors" on both end of some trunk links. We're talking about 1 to 2 errors a week. In our case we just went to SX modules and all issues cleared.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...