By default, the traffic is then side-channeled on the Blast Extreme channel to the agent. VNCSERVER-WIN32: ***Setting topology completed by Nvidia Display***. Horizon Cloud on Microsoft Azure Activity Path. Be certain to test key applications and multimedia content before embarking on widespread deployment. HEVC requires NVIDIA GPUs to be installed in the ESXi hosts to offload encoding. The display protocol is transferring 6 frames per second, and estimates of network bandwidth and latency are provided. Encoder Switch: JPG/PNG and H.264 with HCA. Some of the codecs and codec options can be enabled using the Horizon Client, as shown in the following screenshot. Use cases of this caliber nearly always require hardware GPUs to provide the necessary graphics capabilities and acceleration. But when rapidly changing screen content such as streaming video is detected, Blast Extreme automatically switches to multimedia optimized H.264. The authors wish to thank the following people for their contributions to this paper: To comment on this paper, contact VMware End-User-Computing Technical Marketing at euc_tech_content_feedback@vmware.com. Audio is also enabled, but is not currently being used. However, some applications and use cases require higher quality. After a fair amount of research, we came to the conclusion that it is best to run cameras on Thin Clients, as opposed to Zero Clients. Other codec options can only be enabled by administrators and also require a corresponding Horizon Client setting. Figure 2: Codec Options Available in the Horizon Client. Create desktop pools, application pools, or both. HEVC with High Dynamic Range (HDR) Encoding. Yes. HEVC can also support higher quality at similar compression ratios as H.264, but again at the cost of more processing power with no bandwidth savings. H.264 will provide support for full-motion graphics, whereas the encoder switch will ensure that the most efficient codec is dynamically used for each screen based on screen content. This guide provides detailed information on how to configure and optimize Blast Extreme for these situations. To use Blast Extreme, the virtual or physical desktop pool or RDSH server farm must first be configured to use the protocol as the default, or be configured to allow users to choose it. Our Communities feature the top Digital Workspace Experts across the world and 3rd-party content. Broad client support, including Windows, Linux, Mac, Android, iOS, Chrome, and web (HTML Access) clients. Applications that require higher graphical quality with improved color range and contrast, such as digital photography. The encoder switch ensures that the most efficient codec is dynamically used based on screen content. Let us help you become the hero of your department. Get to know EUC vExperts from around the world. Click the View All button for the full list. Screen 0/1 @ Resolution: 1920 x 1080. Display protocols have similar performance characteristics. Use of a solid color with no image or pattern is recommended. In this mode, under typical application conditions, Blast Extreme uses the Blast Codec or JPG/PNG codec, both of which are optimized for text and still image quality. Updated to cover Horizon 8 (2111) and Horizon Cloud November 2021. See. If users experience any of these issues, HCA can be enabled to improve quality while preserving H.264s multimedia efficiency. Offloading the display protocol encoding is enabled by default but can also be turned off if the GPUs must be dedicated to supporting other tasks. On the client side, you can configure which codec or codecs to use for encoding and decoding the screen content transferred by Blast Extreme. Internal testing resulted In a 12 percent bandwidth savings by doubling the size of both caches to 512 MB. Used together, the JPG/PNG codec is ideally suited for typical Windows and Linux applications, including Microsoft Office. Blast Multimedia Deliver rich video playback for Flash, HTML5, QuickTime, Microsoft Silverlight and Windows Media to a variety of desktop and mobile endpoints. Use HTML5 multimedia redirection if resource-intensive web-browser-based content such as YouTube or eLearning streaming video must be supported. A Blast session is established between the client and agent (virtual desktop or RDSH server), using the TCP and, if available, UDP connection established through the Blast Secure Gateway. Figure 3: Group Policy Settings for Blast Extreme. If multimedia redirection (MMR) is enabled, this traffic uses TCP port 443 from the client to the Horizon Tunnel on the Unified Access Gateway. Graeme Gordon is a Senior Staff End-User-Computing Architect, EUC Technical Marketing, VMware. To observe this in action we can control the codec selection using the VMware Blast settings on the Horizon client. HEVC will not work with CPU encoding alone. We have many more paths than are shown here. Figure 5: Path in the Group Policy Editor for Turning On the Microsoft Teams Optimization Feature Double-click to open and turn on the policy. After you apply the policy, the system stores the settings in the registry key HKLM\Software\Policies\VMware, Inc.\VMware Blast\config. If users are experiencing poor text or image clarity in certain applications with H.264 alone, Blast Extreme can be configured to use High Color Accuracy (HCA). The same workload on a 4K display requires up to six times the resources required by 1920 x 1080p, regardless of display protocol and codec used. Codec settings can also be set in the registry of the templates used to deploy pools of desktops and farms of RDSH servers. to identify the best quality at an acceptable level of bandwidth utilization. See, Worksheet for Creating an Instant-Clone Desktop Pool, You can also configure the remote display protocol at the RDSH server farm level. Look for Desktop & End-User Computing and under this category, select Download Product under VMware Horizon. Start here to discover how the Digital Workspace empowers the Public Sector. :\ProgramData\VMware\VMware Blast\. 2. (maximum display bandwidth) to either the circuit speed or the maximum desired bandwidth utilization per user.The former option allows Blast to burst and use more bandwidth when necessary, while the latter attempts to more strictly control it. Desktop and RDSH server sizing and optimization. The VMware Blast ADMX template file ( vdm_blast.admx) contains policy settings for the VMware Blast display protocol. However, this example can be achieved by disabling support for the H.264 codecs competing options: JPG/PNG and HEVC. The following settings are specifically helpful for handling low-bandwidth conditions: Note that these minimum and maximum bandwidth settings are best effort, not hard limits. EUC Solutions Exchange on VMware CODE is the best place to find and share snippets. Workspace ONE Access, formerly known as Identity Manager, is a powerful tool. If i enable USB Redirection for the Headset, i can choose 48.000 Hz. For more information, see Configuring HTML5 Multimedia Redirection in Configuring Remote Desktop Features in Horizon 7. 9 .0 View GPO Bundle VMware BLAST - These settings are stored in HKLM\Software\Policies\VMware, Inc.\VMware Blast\config HTML5 multimedia redirection transfers this screen content to the client as HTML5 code instead of far less efficient display protocol traffic. Screen 0/1 @ Resolution: 3840 x 2160. With zero attack surface, unpublished API, and encrypted data Wyse ThinOS is virus and malware resistant. Added guidance on the benefits of HTML5 multimedia redirection. Update for VMware Horizon 7 version 7.10. Since first joining VMware in 2008, Mark has focused on helping customers succeed with their end-user computing endeavors. Keep in mind, however, that Blast Extreme will always resort to using more bandwidth, if necessary, to prevent the session from crashing. Ability to use either the TCP or the UDP network transport. Note: Despite the presence of a physical GPU, Blast Extreme with physical desktops is not able to offload H.264, H.264 with High Color Accuracy, or High Efficiency Video Coding (HEVC) encoding, even with NVIDIA GPUs. UdpEnabled Enables or turns off support for the UDP transport protocol. And if Blast Extreme encounters problems making its initial connection over UDP, it will automatically switch and use TCP for the session instead. Desktop wallpaper unnecessarily expends both CPU resources to encode and network bandwidth to transfer. Fortunately, this processing can be offloaded from the CPU to graphics cards (GPU) in the device. The following table details the requirements for each codec. Monitor for high CPU Ready times (which are evidence of processor contention). The actual size of the cache will be the lesser of this value, and the value of EncoderImageCacheSizeKB set on the agent side but cannot exceed half of the available RAM. General settings include both Computer Configuration and User Configuration settings. Consider using the HEVC codec. Caroline Arakelian is a Senior Technical Marketing Manager, End-User-Computing Technical Marketing, VMware. Welcome to VMware Digital Workspace Tech Zone, your fastest path to understanding, evaluating, and deploying VMware End User Computing products. VMware Blast Extreme Group Policy Settings The policy files required are vdm_blast.admx and vdm_blast.adml. The encoder switch dynamically switches between either the JPG/PNG codec or the Blast Codec, and H.264, depending on the screen content type. It is therefore with great pleasure that we are able to bring you Real-Time Audio-Video functionality. Webcam support in VMware Horizon View is a feature that has frequently been requested. This means that display content encoded and compressed using PNG alone can be restored to match the quality of the original content. HEVC will not work with ESXi CPU encoding alone. Blast Extreme Display Protocol in VMware Horizon Technical Guide, Configuring Remote Desktop Features in Horizon 7, Using Horizon to Access Physical Windows Machines, VMware Workspace ONE and VMware Horizon Reference Architecture, Deploying Hardware-Accelerated Graphics with VMware Horizon, VMware Windows Operating System Optimization Tool Guide. The VMware Workspace ONE and Horizon Reference Architecture guide provides guidance for architecting Workspace ONE and Horizon deployments. Blast Extreme includes the following security features to support Horizon: Display protocols must be able to efficiently provide the best user experience for various types of screen content, including text, still images, streaming video, 3D rendering, and audio. However, compared to other codecs, H.264 requires more processing power to perform its encoding and decoding operations. See our favorite tools, scripts, and flings from various sites. Learn how to architect the right security solutions for your business needs. There is a unified image quality configuration setting that controls the remoted display image quality level across all Blast encoders. Same applications as for the Blast Codec and the H.264 with HCA codec. In testing, UDP has been shown to handle packet loss better than TCP in most situations. When multimedia redirection (MMR), client-drive redirection (CDR), USB redirection, or some combination of these are enabled by the administrator, this traffic goes through the HTTPS Secure Tunnel on the Connection Server. It is designed to support the majority of customer use cases, including not just typical Windows and Linux apps like Microsoft Office, but also SaaS applications, line-of-business apps like Point of Sale, plus any that require low-motion, high-quality graphics support such as CATIA, Photoshop, and AutoCAD. Note: Different types of client devices support different features of Blast Extreme. Figure 3: Tunneled Connection from Client to Agent Through the Connection Server. Go to https://my.vmware.com/web/vmware/downloads. Set on the virtual desktop and RDSH server (agent side). Note: Dynamic Environment Manager also provides optimization templates for Blast Extreme. Install VMware Horizon Client on end users' machines and have end users access their remote desktops and applications. If UDP is enabled on the client, the Unified Access Gateway, and the agent (default), the client attempts to make a UDP connection to the agent via the Unified Access Gateway. 2 enabled client to server only VNCEncodeRegionNvEncGetHandle: region encoder NVIDIA NvEnc H264 using YUV 4:2:0 color space. These pages help you understand the breadth of our most popular products. On the right, switch to the tab named Security Servers. Each setting is a string value (REG_SZ). See the faces behind the names of our Tech Zone content. Chris is EUC Staff Architect, End-User-Computing Technical Marketing, VMware. Use a single monitor with the lowest screen resolution supported by the use case. 0 turn off upload and download Become a desktop virtualization hero with our curated activity path. Blast Extreme is included with VMware Horizon, the latest generation of VMware desktop virtualization and remote application-delivery software. The following tuning recommendations apply to all WAN conditions. JPG/PNG can also be configured to use build-to-lossless mode. Depending on application workload, 4K displays can use up to six times the resources as 1080P. This is ideal for providing remote access to user PCs. These settings are used to configure the address at which clients can reach the specific server when tunneling is in use. However, in testing it has been determined that only Intel GPUs support OpenGL applications in a remote session. Configuring Remote Desktop Features in VMware Horizon, Enabling the USB Over Session Enhancement SDK Feature. New in Horizon 8 (2106): HEVC with High Dynamic Range (HDR) Encoding. See Enabling the USB Over Session Enhancement SDK Feature. All three howeverNVIDIA, AMD, and Intelare able to support Microsoft DirectX. Another important aspect to consider is the size of the monitor (or monitors) to be used, and their screen resolutions. Horizon Client version 5.2 only also requires a special configuration file on the client (see the note following this table). Yes: Select Allow High Efficiency Video Coding. You should have: In order to optimize Blast Extreme, it is important to understand two key configurable components: the transport protocol and display protocol codec. The goal is to configure QoS to prioritize Blast Extreme above general network traffic, but below the few applications that are even more sensitive to delay. In addition to the four codecs, Blast Extreme supports several codec options that can be used to help support different use cases and network conditions. It is better to leverage HTML5 multimedia redirection to optimize such use cases. One of the goals for Blast Extreme is to provide an excellent out-of-the-box configuration for most local area network (LAN) use cases, negating the need to perform complex tuning or learn hundreds of policy settings. If other optimizations are not working as expected, verify there are no settings in HKEY_CURRENT_USER. Blast Extreme supports two transport protocols to carry the display traffic between clients and the Horizon infrastructure: TCP (Transmission Control Protocol) and UDP (User Datagram Protocol). H.264s 4:4:4 GPU decoding is also not supported by many GPUs. This means most should be considered medium- to high-speed WAN use cases. Explore how VMware can help solve an IT team's most pressing digital workspace challenges. Intelligence to determine and accommodate varying network conditions. Introduced in Horizon 8 (2106): Enable support for High Dynamic Range (HDR) color. Except under unique conditions, it is not possible to increase quality while limiting system resources. Question: 1. To determine whether the session is using UDP or TCP, review the latest entries in the Blast-Worker-SessionId<#>.log file, and look for the entries such as those shown in the following table. Some even suffer from packet loss, where packets never arrive at the destination at all! Use TCP if latency is greater than 250 milliseconds. Blast Extreme must be on TCP 443 only (as described previously for port sharing). In testing, TCP has been shown to handle high latency better than UDP. Blast Extreme uses the latest security algorithms, including SHA-256. Start here to understand the basics of the award-winning product suite. Use NVIDIA Tesla or newer GPUs. MaxBandwidthKbpsPerMegaPixelSlope The maximum bandwidth used to transfer screen contents per megapixel remoted, in kilobits per second. A TCP WebSocket connection is made from the client to the Blast Secure Gateway on port 8443, and then from the Blast Secure Gateway to the virtual desktop or RDSH server on port 22443. Remember that you are separating the user and their keyboard, monitor, and mouse from the system they are actually using. Use Network QoS (Quality of Service). This directory contains logs for the three Blast Extreme components: For more information about the entries in these log files, see How to Verify Configuration in the VMware Blast Extreme Optimization Guide. For lossless support, enable Build-to-Lossless (EncoderBuildToPNG = 1). Easily manage VM Profile settings across images. DecoderImageCacheSizeKB Introduced in Horizon 8 (2111).Set on the client. By Peter Brown, Senior R&D Manager, and Tarique Chowdhury, Software Engineer For information about what's new with Horizon Real-Time Audio-Video, read this 2023 blog. The following table documents the key codec and transport settings. Although JPG/PNG and the Blast Codec are ideal for ensuring still image quality, this capability hinders their ability to efficiently support rapidly moving screen content and motion graphics such as streaming video, video editing, and gaming. Deploy virtual desktops and RDSH servers on fast virtual disks (all-flash or flash-optimized). Use HTML5 multimedia redirection if resource-intensive web-browser-based content such as YouTube or eLearning streaming video must be supported at high screen resolutions without NVIDIA GPUs. We also frequently discover that the underlying ESXi hosts are overutilized and are exhibiting clear indicators of problems impacting user experience such as high CPU Ready times. Explore custom assets and resources for federal, state, and local government framework solutions here, including industry-leading, public-sector solutions for endpoint management security, virtualization, cloud, and mobile, commercial requirements, industry standards, government certification, and accreditation programs. Problem is with second file, which is growing sometimes up to 15GB, then new files are created. The running codec and codec options can also be identified by examining the latest entries in the Blast-Worker-SessionId<#>.log file, as detailed in the following table. VNCRegionEncoder_Create: region encoder BlastCodec. The following table provides guidance on which codecs to use for various types of applications. It also tells whether a GPU is required on the client or server. Increasing this setting helps improve display quality at the expense of higher bandwidth utilization. Note: This parameter does not impact the bandwidth of other services such as audio and file transfer, which are unrelated to transfer of the screen. For details about port requirements for connectivity between the various components and servers in a Horizon deployment, see Network Ports in VMware Horizon. Applications and use-cases that require higher quality typically have demanding graphical requirements that can only be supported by hardware GPUs. This is due to the much higher graphical quality this hardware-enabled configuration provides. If this functionality is used, configuration settings are created within each users profile in the following registry key: HKEY_CURRENT_USER\SOFTWARE\Vmware, Inc.\Vmware Blast\Config. MinBandwidthKbps The minimum bandwidth used by all services, in kilobits per second. If the UDP connection is successful, Blast assesses the networks condition to decide whether to use TCP or UDP for session traffic. The actual size of the cache will be the lesser of this value, and the value of DecoderImageCacheSizeKB set on the client but cannot exceed half of the available RAM. Display resource-intensive multimedia content in a window instead of full screen. Multimedia applications such as streaming video, video games, and productivity applications with rapidly changing content. VMware Horizon Administration guide in the VMware Horizon Documentation, Configuring Remote Desktop Features in Horizon guide in the VMware Horizon Documentation, Deep Dive into VMware Horizon Blast Extreme Adaptive Transport blog post, NVIDIA vGPU Deployment Guide for VMware Horizon 7.5 on VMware vSphere 6.7, VMware Horizon Blast Extreme Acceleration with NVIDIA GRID blog post, 3D Graphics like never before with VMware Horizon and NVIDIA T4 GPUs blog post. General settings include proxy options, time zone forwarding, multimedia acceleration, and other display settings. When traffic must pass through a UDP-hostile network service or device such as a TCP-based SSL VPN, which re-packages UDP in TCP packets, If WAN circuits are experiencing very high latency (250 milliseconds and greater). Follow these guidelines: Note that while the optimizations in this section are typically used with WANs, they can also be used on the LAN if Blast Extremes default settings use more bandwidth or other resources than desired. For this reason, HEVC in Blast Extreme requires that the ESXi hosts supporting the virtual desktops and RDSH servers have NVIDIA Tesla or newer GPUs to offload its encoding. Customize your Workspace ONE and Horizon adoption communications using our templates as a starting point. HEVC provides up to 50 percent better compression with the same quality as H.264 and can also provide higher quality at similar compression ratios as H.264. A monitor at 4K resolution requires up to six times the bandwidth for the same application workload as 1080p. If UDP is enabled on the agent (default), the Blast Proxy process (in Horizon Agent) attempts to make a UDP WebSocket connection to the client on port 22443. Ensure that ESXi hosts have sufficient resources, especially CPU. Although Blast Extreme is designed to provide an excellent, out-of-the-box configuration for most use cases, some network conditions and applications require additional tuning. Same applications as for the Blast Codec and the H.264 codec. The following tuning options are recommended to increase display protocol quality for all use cases and applications. Yes: Select Allow H.264 Decoding. Horizon Client, on the client device, authenticates and requests a desktop or application. Keep in mind, however, that Blast Extreme will always resort to using more bandwidth, if necessary, to prevent the session from crashing. Same applications as for the JPG/PNG codec and the H.264 codec. It is important to recognize, however, that no display protocol can provide a perfect LAN experience over typical WANs. compression format. Once infrastructure resources and capacity have been verified, and the desktops and servers have been optimized, the performance of the display protocol can be tuned as necessary. However, it does increase client CPU utilization by up to 200 percent for the duration of the redirection (from an average of 8 to 24 percent on a sample test system). For external connections, Blast Extreme can use the security certificate on the Unified Access Gateway appliance. The Horizon Performance Tracker is an option that can be selected during the Horizon Agent installation on the virtual desktop, physical desktop, or RDSH server. For mixed workloads, use the encoder switch to dynamically switch between the new Blast Codec or JPG/PNG and H.264 codecs.
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