vSRX instances may exhibit the following behaviors after powering the instance after adding new vNIC. 

• Incomplete bootup of Junos after loading Wind River Linux Kernel
• Completed bootup with PFE remaining in offline state
• Completed bootup with PFE online but does not reflect expected newly added interfaces

Below are screenshot examples of related behaviors.

• Incomplete bootup of Junos after Wind River Linux Kernel prompt

• Completed bootup with PFE remaining in offline state

• Completed bootup with PFE online but does not reflect expected newly added interfaces

This is due to use of an unsupported vNIC type while adding additional interfaces to the vSRX.

*Green outline showing a supported vnic adapter type
*Red outline showing unsupported vnic adapter type
 

While adding interfaces 4 to 8 or 8 to 10, ensure that the correct vNIC type is selected. For the procedure to add more interfaces in vSRX and supported vNIC types, refer to the following link:

Adding vSRX Interfaces

2020-06-26: Updated missing graphics and behavior scenarios.
2017-10-13: ​ Added snapshots.  

• Adding vSRX Interfaces