What are the contexts on Palo Alto Networks firewalls referred to when integrated into Cisco ACI?

In the context of Palo Alto Networks firewalls integrated into Cisco ACI (Application Centric Infrastructure), the term "vsys" refers to virtual systems. Each virtual system operates as an independent firewall within a single physical device, allowing for segmentation and different security policy management for different tenants or applications. This is particularly useful in multi-tenant environments, where different customers or applications require isolated security policies and configurations.

The concept of virtual systems enables efficient resource utilization and flexibility, allowing organizations to deploy security solutions tailored to specific needs without the overhead of managing multiple physical firewalls. In conjunction with Cisco ACI, this provides dynamic policy enforcement and automated security provisioning as applications are deployed or scaled in the data center.

This functionality highlights how virtual systems support the strategic needs of multi-tenant architectures, facilitating better resource allocation while maintaining robust cybersecurity measures. Other options such as multi-tenant and Panorama relate to different aspects of the firewall's deployment and management but do not directly define the specific components operating within it.