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Nexus 1000V (VMware) - VEM is offline when I type "show module"

Here is the environment

One VSM latest release 5.2(1)SV3(1.1).
Actually, only one ESXi latest release 2068190 to make tests.

The ESXi had different kernels managed by a standard vswitch.  All of them, including the management kernel, have been migrated to the VSM without any issue, thanks to the migration wizard.

One VMkernel for the management, with the default gateway, vlan120, 10.17.250.29/28, gateway 10.17.250.17.
Another one VMkernet for the VEM controller, vlan60, 10.17.249.45/28, without gateway.  It should be 10.17.249.33 but ESXi refuses it.
VSM (active and standby) is vlan50, ip 10.17.249.14/28, gateway 10.17.249.1, L3 mode.
The port-profile type vethernet VEMCtrl (vlan60) is L3 capability.

No routing issue, except that the VSM cannot reach 10.17.249.45.
The router, directly connected to all interfaces, can reach 10.17.249.45.

On the host, the VEM agent is up and up-to-date.

What's wrong ?

Thank you for your advice.

 

VSM(config)# sho mod
Mod  Ports  Module-Type                       Model               Status
---  -----  --------------------------------  ------------------  ------------
1    0      Virtual Supervisor Module         Nexus1000V          ha-standby
2    0      Virtual Supervisor Module         Nexus1000V          active *
3    1022   Virtual Ethernet Module           NA                  offline

Mod  Sw                  Hw     
---  ------------------  ------------------------------------------------ 
1    5.2(1)SV3(1.1)      0.0                                             
2    5.2(1)SV3(1.1)      0.0                                             
3    5.2(1)SV3(1.1)      VMware ESXi 5.5.0 Releasebuild-2068190 (3.2)    

Mod  Server-IP        Server-UUID                           Server-Name
---  ---------------  ------------------------------------  --------------------
1    10.17.249.14     NA                                    NA
2    10.17.249.14     NA                                    NA
3    10.17.250.29     4c4c4544-0034-4710-8033-b4c04f333032  host1.vcenter.local

* this terminal session
VSM(config)#

 

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