Need DCBX Version(s) Implemented in VC Versions 3.51, 3.70, 4.01, 4.10, 4.30

[chuckk281]

Gregory was troubleshooting a network problem and needed the Data Center Bridging Exchange Protocol (DCBX) version used in Virtual Connect modules:

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Folks,  looking for guidance on where to find the version(s) of DCBX implemented in the following VC versions. 

3.51

3.70

4.01

4.10

4.30

I believe VC 4.30 is DCBX 1.1 ( also referred to as Gen-2 ? )  not sure about the other VC versions.

REASON for REQUEST: I have a customer who is experiencing port outages and their Cisco network team indicates it might be a DCBX issue in the older VC modules in that environment.

Many thanks in advance for the assistance / guidance !

Data Center Bridging Exchange (DCBX) Protocol

The Data Center Bridging Exchange (DCBX) protocol is also specified in the IEEE 802.1Qaz draft standard. DCBX allows DCB configuration parameters to be exchanged between two directlyconnected peers.

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A chart from Mark:

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I created this table to explain how DCBX is implemented within VC/LLDP. This is how it works.

And the known cisco issue http://h20566.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay?docId=c04173675&ac.admitted=1412790274797.876444892.199480143

So for Flex-10 modules, the problem would occur when updating to 4.01/4.10 if running older IOS but would not occur past VC 4.20.

For the VC FlexFabric modules, (x5-x8) the problem could also occur but not in VC 4.20 or later.

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Comments?