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Security zones in a Versa Secure SD-WAN solution group interfaces into security domains, controlling how traffic is processed and filtered through the network. These zones play a key role in the segmentation of traffic, improving security posture by enforcing distinct policies for different zones. They do not separate routing information into different routing tables or hide interfaces from tenants in a multi-tenant environment; rather, they are integral in the enforcement of security boundaries within the network.

In a Versa Secure SD-WAN solution, security zones are utilized primarily to group interfaces into security domains and provide segmentation of traffic. This approach enhances the security posture by isolating different types of traffic based on organizational policies or compliance requirements, thereby limiting the spread of threats across zones.

• Security Zones Group Interfaces into Security Domains (Answer A): Security zones in Versa SD-WAN are used to group multiple interfaces (either physical or virtual) into distinct domains. This grouping is strategic for enforcing security policies that are specific to a zone. For instance, a zone could be designated for guest access and have different access restrictions and monitoring compared to an employee zone.
• Security Zones Provide Segmentation of Traffic (Answer B): Traffic segmentation within Versa SD-WAN is achieved through the use of security zones. By segmenting traffic, organizations can enforce security policies tailored to the type of traffic or the sensitivity of the data within each segment. This is crucial for controlling resource access and reducing the potential impact of security breaches.

Security zones do not inherently separate routing information into separate routing tables (Option C), nor are they primarily used to hide interfaces from tenants in a multitenant environment (Option D).

References:This detailed explanation is based on the security management practices and capabilities defined in Versa Secure SD-WAN solutions, as outlined in the Versa Networks Academy Library and supplemented by standard network security principles.

To implement a third-party application server as a virtual machine on a Versa CPE, the Service Chain Template should be used. This is because the Versa uCPE solution supports service chaining capabilities which are necessary for steering traffic to and from third-party virtual network functions (VNFs) to Versa Operating System (VOS) instances. The Versa uCPE solution can manage the lifecycle of third-party VNFs, including the ability to bring up an out-of-band management interface for each VM, connecting it to the Versa secure management channel, and routing management and control plane traffic accordingly??.

Within the Device Template workflow, you can configure various settings that dictate how the SD-WAN devices will behave in the network. While specific port numbers like WAN/LAN ports and serial numbers are usually predefined hardware attributes and not set via templates, Device Group classification and Direct Internet Access configurations are part of the template workflow. Device Groups help in classifying devices for easier management, and Direct Internet Access (DIA) settings determine how internet traffic will be handled, allowing for traffic to bypass central gateways and go directly to the internet, which can be crucial for optimizing the network performance.

In a Post-staging Template within the Versa SD-WAN solution, device-specific information such as WAN IP addresses, LAN subnets, and route ID are collectively referred to as "Bind Data". This term is used to describe the information that is specific to individual devices, which must be entered to tailor the general staging template to the unique requirements of each device during the staging process.

In the context of Versa SD-WAN, Class of Service (CoS) refers to mechanisms within the network that manage traffic prioritization and resource allocation. CoS is essential for ensuring that critical business applications receive the necessary bandwidth and low-latency treatment they require to function effectively.

A.Remarking: Remarking is a process that manipulates the Class of Service bits (in the IP header's DSCP field) or Layer 2 CoS fields (in the VLAN tag's priority code point - PCP). By remarking these fields based on Layer 3 (IP), Layer 4 (TCP/UDP ports), and Layer 7 (application identification) details, the network can differentiate and prioritize traffic. This ensures that critical applications, such as voice and video, are given higher priority over less time-sensitive data.

C.Queuing: Queuing mechanisms within Versa SD-WAN determine how packets are treated as they are processed through the network. Various queues can be assigned different priorities and weights to control the order in which packets are sent out through the network interface. High-priority queues might be reserved for voice traffic to reduce latency, while lower-priority queues could be used for bulk data transfers that are less sensitive to delays.