Abstract: Some embodiments provide a method for network management and control system that manages one or more logical networks. From a first user, the method receives a definition of one or more security zones for a logical network. Each security zone definition includes a set of security rules for data compute nodes (DCNs) assigned to the security zone. From a second user, the method receives a definition of an application to be deployed in the logical network. The application definition specifies a set of requirements. Based on the specified set of requirements, the method assigns DCNs implementing the application to one or more of the security zones for the logical network.

Abstract: According to the embodiments provided herein, a method for scribing a layer stack of a photovoltaic device can include directing a laser scribing waveform to a film side of a layer stack. The laser scribing waveform can include pulse groupings that repeat at a group repetition period of greater than or equal to 1.5 ?s. Each pulse of the pulse groupings can have a pulse width of less than or equal to 900 fs.

Abstract: According to the embodiments provided herein, a method for scribing a layer stack of a photovoltaic device can include directing a laser scribing waveform to a film side of a layer stack. The laser scribing waveform can include pulse groupings that repeat at a group repetition period of greater than or equal to 1.5 ?s. Each pulse of the pulse groupings can have a pulse width of less than or equal to 900 fs.

Abstract: A database migration system, according to an example of the present disclosure, builds a dynamic object-relationship model of a database and determines a sequence of data migration for moving data from one database to another. The system may determine a dynamic object-relationship model based on a traversal of the database schema from a root object. The system may determine object attributes for child objects in the object database. In an example, an object attribute may be a relationship between the object and another object, or a property of the object. The system may build a dynamic object-relationship model based on the determined object attributes. The system may also determine a sequence for migrating the objects in the database that does not result in missing objects or missing object attributes based on the dynamic object-relationship model.

Abstract: A database migration system, according to an example of the present disclosure, builds a dynamic object-relationship model of a database and determines a sequence of data migration for moving data from one database to another. The system may determine a dynamic object-relationship model based on a traversal of the database schema from a root object. The system may determine object attributes for child objects in the object database. In an example, an object attribute may be a relationship between the object and another object, or a property of the object. The system may build a dynamic object-relationship model based on the determined object attributes. The system may also determine a sequence for migrating the objects in the database that does not result in missing objects or missing object attributes based on the dynamic object-relationship model.

Abstract: A method in a first network device of performing a software update of a line card of a second network device without disruption to data traffic. The method includes causing a redundant control plane component of the second network device to be updated according to the software update. The method continues with causing the second network device to instantiate, based on the software update, a line card virtual machine (LC VM) as a redundant data plane component for the line card. The method further includes causing a third network device to forward data traffic to both the line card and the LC VM of the second network device, and causing the second network device to update the line card according to the software update while processing the received data traffic using the LC VM.

Abstract: A method in a first network device of performing a software update of a line card of a second network device without disruption to data traffic. The method includes causing a redundant control plane component of the second network device to be updated according to the software update. The method continues with causing the second network device to instantiate, based on the software update, a line card virtual machine (LC VM) as a redundant data plane component for the line card. The method further includes causing a third network device to forward data traffic to both the line card and the LC VM of the second network device, and causing the second network device to update the line card according to the software update while processing the received data traffic using the LC VM.