Versa Networks VNX100 Dumps

When a speed test fails, it could be due to the speed test module not being activated or the speed test server not being enabled at the remote site. If the speed test module has not been activated, the required functionality to conduct the test will not be operational. Similarly, if the remote site does not have the speed test server enabled, it won't respond to speed test requests. Issues with the SLA path status or client configuration might be relevant to the performance and reachability but are not cited as direct reasons for a speed test failure within the documentation provided.

When creating a device using workflows, two essential components are required: a Device Template and a Service Template. The Device Template is used to define the device's characteristics and configuration details, whereas the Service Template contains service-specific configuration such as routing, security policies, and features that may be applied to the device. These templates are crucial for automating device provisioning and configuration within the Versa SD-WAN architecture​​.

URL-based Zero-Touch Provisioning (ZTP) is an approach where the URL of a Versa Operating System activation website is emailed to the installer at the customer site. The installer then connects a laptop to the Wi-Fi or LAN port of the Versa branch device, clicks on the URL, and completes the provisioning process. This method does not require a console connection and is one of the methods provided by Versa to provision and configure new VOS devices, making the process convenient and straightforward.​

Versa Analytics offers REST APIs that facilitate northbound integration with third-party tools, allowing for enhanced automation and the ability to pull data into external systems for additional processing or visualization. Moreover, it provides real-time traffic monitoringdashboards that deliver visibility into network performance, application usage, and security events, aiding in swift and informed decision-making. These dashboards are crucial for maintaining an overview of the network's current state and rapidly diagnosing issues.​

Versa Analytics offers a suite of features aimed at enhancing visibility and control over SD-WAN networks. The true statements about Versa Analytics are:

• Versa Analytics provides REST APIs for northbound integration with third-party tools (Answer B): Versa Analytics is equipped with REST APIs that facilitate northbound integration, allowing organizations to seamlessly connect and integrate Versa's network data with third-party management, monitoring, and analytics tools. This integration capability is crucial for enterprises that utilize a diverse set of tools for network management and need to consolidate their network operations on a single platform.
• Versa Analytics provides real-time traffic monitoring dashboards (Answer D): One of the key features of Versa Analytics is its real-time traffic monitoring dashboards. These dashboards provide network administrators with live insights into network performance, traffic flows, and usage patterns, enabling them to make informed decisions quickly and effectively manage the network.

Option A (Versa Analytics provides the ability to configure logging parameters on SD-WAN CPEs) is incorrect because while Versa Analytics does involve extensive logging capabilities, the configuration of logging parameters typically occurs at the device or controller level, not within the analytics platform itself. Option C (Versa Analytics provides centralized logging information about the SD-WAN environment) is somewhat misleading; while Versa Analytics does centralize data for analysis, it primarily focuses on providing analytical insights and data visualizations rather than merely centralizing logging information.

References:This explanation is based on the functionalities provided by Versa Analytics as part of the Versa SD-WAN solution, emphasizing its capabilities in network data integration and real-time monitoring.

The diagram in the exhibit illustrates a hub and spoke topology where the spokes connect through a central hub. This is evident from the dashed lines that show the data flow between the spokes is mediated by the hub (Hub1). In this topology, while the spokes may have direct connections, the data flows between them pass through the hub. This kind of topology is commonly used in SD-WAN deployments to simplify routing and policy enforcement, which are managed centrally at the hub, as opposed to setting up direct paths between all spoke sites, which would be indicative of a full mesh or spoke-to-spoke direct topology.

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Versa Secure SD-WAN features multitenancy, allowing multiple tenants to be managed within the same infrastructure with complete isolation and privacy. Additionally, it offers Role-Based Access Control (RBAC) to define and limit the permissions and access for users based on their roles within the organization. Versa also provides single-pane-of-glass management with embedded analytics, offering a consolidated view for managing, monitoring, and analyzing the SD-WAN infrastructure and traffic. This unified management approach simplifies administrative tasks and provides deep insights into the network and security operations.

When a Versa CPE security policy rule is configured to generate and send logging information on policy hits using the Default Logging Profile, Versa Analytics is the component that would allow you to view these logs. Versa Analytics provides extensive visibility into network traffic and security events, which includes logging information from security policies in action.​

Versa Director acts as an orchestrator within the Versa SD-WAN ecosystem, providing centralized configuration management and monitoring of controllers, branch sites, and hubsites. It does not function as a log forwarder, BGP route reflector, or VPN concentrator. As an orchestrator, it manages the lifecycle of Versa VOS instances, enabling zero-touch provisioning and other orchestration functionalities through a single pane of glass.

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 architecture of Versa SD-WAN, the control plane plays a crucial role in the discovery and management of network topology:

• SD-WAN topology is discovered using MP-iBGP (Answer B): Versa utilizes Multi-Protocol Interior Border Gateway Protocol (MP-iBGP) for the discovery and management of the SD-WAN topology. This protocol helps in the efficient exchange of routing information within the network, enabling the Versa Director and other network components to maintain an updated view of network topology.
• Versa Private Address Family is used to advertise topology information (Answer C): This unique address family within Versa’s ecosystem is specifically designed to handle and distribute topology information across the network. It ensures that all relevant Versa devices are aware of the network structure and any changes to it.

References:These elements of Versa’s SD-WAN control plane are detailed in the technical specifications and white papers provided by Versa Networks, which explain the underlying mechanisms that support network operations and topology management within Versa’s infrastructure.

The Versa Operating System (VOSTM) includes a broad set of IP services. Specifically, it includes Carrier-Grade NAT (CG-NAT), which allows private network spaces to be mapped to public IP addresses; Multicast protocols such as IGMP and PIM (in Releases 20.2 and later); and the NTP server for time synchronization. HTTP Proxy and CDN are not listed among the included features for the Versa Operating System in the provided documents.​

The policy shown in the exhibit appears to match traffic flows based on multiple conditions involving the source zone and the application. Given the information in the screenshot:

• The policy is configured with multiple zones as source zones:Intf-LAN1-ZoneandIntf-WLAN-Zone.
• An application is specified:SHAREPOINT.

The policy is likely to be applied to traffic originating from either of the specified zones and specifically related to the SharePoint application. This implies that both conditions related to the source zones are not mutually exclusive but rather a union; the same goes for the application condition.

Given this interpretation, the correct set of conditions that match the policy shown would be:

B.Traffic flows that meet any of the following two conditions:

• Source Zone - Intf-LAN1 Zone
• Source Zone - Intf-WLAN-Zone

In addition, the below condition must also match:

• Application - SharePoint

This means that traffic will match the policy if it comes from either theIntf-LAN1-Zoneor theIntf-WLAN-Zoneandis SharePoint application traffic.

However, to be more precise in the context of Versa SD-WAN configurations, it's important to note that policies are usually applied when all conditions within a single rule are met. If the configuration in the screenshot intends to express that traffic is matched if it comes from either of the two zones and is for the SharePoint application, then the correct answer should reflect this logic. If the configuration system is set up to require all conditions in a rule to be met, then the answer could potentially be different. Since the user interface design can sometimes vary, it’s important to understand the specific logic of the system in question.

Versa Director provides real-time monitoring capabilities for all services running in Versa CPE. It offers visibility into the live status, performance, and health of the services, which is crucial for proactive management and rapid troubleshooting of any issues that may arise in the network. This capability enables network administrators to closely monitor the functioning of various services within the CPE and take immediate action if any anomalies are detected​​.

C. Versa Analytics has built-in ping, traceroute, tcpdump, and speed test tools.Versa Analytics is equipped with built-in tools such as ping, traceroute, tcpdump, and speed test capabilities. These tools are essential for diagnosing and resolving network issues. They enable network operators to test connectivity, trace the path of packets across the network, capture traffic for analysis, and measure the bandwidth of network connections. Having these tools integrated within Versa Analytics simplifies the process of network diagnostics and ensures that network operators can efficiently manage and optimize network performance​​​​.

In SD-WAN policy rules, two parts used to steer traffic are Schedules and Applications. Schedules allow administrators to define when certain policy rules should be active, effectively determining the timing for when traffic steering decisions should be applied. Applications, on the other hand, enable traffic steering decisions based on the type of application traffic being detected. This allows for more granular control and optimization of traffic flows based on application requirements and characteristics​​.

Versa CPEs support a variety of Quality of Service (QoS) functions to ensure effective bandwidth management and priority handling of network traffic. The three functions supported are:

• Hierarchical queuing (Answer B): This QoS function allows for the creation of a multi-level queue structure, enabling more granular control of traffic prioritization and bandwidth allocation among various traffic classes.
• Egress policing (Answer C): This involves setting maximum bandwidth limits for outbound traffic on network interfaces to prevent any traffic class from consuming excessive bandwidth and impacting the performance of other critical applications.
• Classification (Answer D): This is the process of marking packets based on predefined criteria, which can include source or destination IP addresses, ports, or application types. Classification is essential for applying the appropriate QoS policies to different types of traffic.

References:These functionalities are extensively described in Versa’s configuration manuals, where the setup and implications of each QoS feature are discussed, ensuring optimal network performance and adherence to organizational policies.

When a customer has a single Versa Analytics cluster deployed in a data center with the Versa Director and Versa Controller nodes distributed between the data center and disaster recovery sites, and the data center goes down for one day, logging and reporting will be lost during the one-day downtime (D). Versa Analytics plays a crucial role in collecting, processing, and presenting data for monitoring and reporting purposes. Its deployment in a single data center without active redundancy means that its failure or unavailability directly impacts the network's ability to perform logging and generate reports. However, the SD-WAN CPE live monitoring (A), the deployment of new SD-WAN CPE (B), and the reachability between SD-WAN CPE (C) could still be maintained through the remaining operational elements of the SD-WAN architecture, assuming that the Versa Director and Versa Controller can still manage the network despite the loss of analytics capabilities​​.

To ensure that a new CPE deployment has the required version of the Versa Operating System:

• Select preferred software version to 20.2.2 in the Device Bind Data (Answer C): Device Bind Data in Versa Director is the correct place to specify the operating system version for CPE devices. This configuration ensures that when devices are bound to their respective templates and workflows, they automatically fetch and load the specified software version, which in this case is 20.2.2.

References:This procedure aligns with Versa's deployment guidelines which stipulate that device-specific settings such as operating system versions should be managed through device bind settings to ensure consistency and compliance with organizational standards. This is detailed in the Versa deployment manuals which emphasize the importance of precise configuration in device bind data to maintain software uniformity across deployed devices.

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​​.