Virtual machine Virtual WWNs not visible in the FC Fabric

Hi Friends,

Need some help as i'm trying to map FC LUNs directly to the Virtual Machines for this i have enabled NPIV in EDIT SETTINGS of the VM and there are WWNs\WWPNs assigned to VM.

Now these WWNs are not shown in the FC fabric hence i can not zone it with the SAN and present a LUN..

The only time these WWNs are visible for brief period of time is when i attached an RDM to the VM and after some time they are again gone.

For ref please see attached diagram..!

Details:

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1: B1/B2 brocade 6505(FOS 7.2.0a) IO Modules in ACCESS GATEWAY MODE.

2: ToR01/ToR02 Brocade 6505 (FOS 7.2.0a) in NATIVE SWITCH MODE.

3: NPIV is enabled end to end.

4: Qlogic 2662 16Gig FC HBA in blade servers. qlnativefc driver loaded in ESXi 5.5.

5: ESXi and vcenter version is 5.5.0.

6: EMC VMAX 10k FC SAN

7: Dell 1000e bladechassis

Please help and guide..

Thanks