Hello, I have a scenario where a Nexus 5548UP is connected to an HP Vrtual Connect. Communication is in Fibre Channel 4 Gbps because 8 Gbps has works with many many errors. The HP tech support peaple has indicated a problem in the8 Gbps FC Nexus implementation. Is there really any issue to placing this solution in 8Gbps?
we do support 8gig with hpvc. please open a tac case on this as iwe will need to investigate further ...
more information on the problem pablo is referring to:
Cisco nexus uses IDLE instead of ARB(FF) transmission [like in MDS & brocade switches ].This could be causing decode errors on VC modules and the established link will be down after certain period of time, not sure on that part though. I guess this problem happens with 8gb only. With 4gig the issue is not observed.
typically there will be server disconnects at 8gig. so loosing flogi and server loosing connection to storage are typical symptoms. this is a limitation as far as 55xx platform is concerned and there is nothing to fix from cisco side. please check with HP for further details if they can modify the behavior so as to be compliant with Cisco 55xx.
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