HP Velocity Server Side Deployment Guide
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Contents Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 About this document 6 Purpose. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Intended audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HP Velocity group policy 26 HP Velocity Policy Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Microsoft Group Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Configuring HP Velocity using Group Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adding the HP Velocity Administrative Template to a GPO . . . . . . . . .
Troubleshooting 73 Why does the “Another version of this product is already installed” message appear? . . . . . . . . . . . 73 Why does the “Do you want to allow the following program from an unknown publisher to make changes to your system” message appear? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
About this document Purpose This document describes deployment scenarios and installation methods for HP Velocity.
About this document Document styles and conventions In this document, the following conventions are used. Convention Description Replace the whole text including angle brackets with the expected value. For example, replace with example.exe when entering this command. {option1 | option 2} When entering the command, choose one of the options presented.
HP Velocity functional overview Operational modes HP Velocity protects and optimizes data flows between HP thin clients and HP Velocityenabled virtual desktops or terminal services servers. It provides three operational modes: Protect, Monitor, and Off. Protect mode Protect mode is the default and recommended operational mode. In this mode, HP Velocity provides session establishment, HP Velocity-protected flow statistics, packet loss protection, WiFi optimization, and latency mitigation.
HP Velocity functional overview Establishing a connection Establishing a connection An HP Velocity-protected connection is established over four steps (Figure 1): • • • • Initialization Beaconing Handshaking Protected state Figure 1. Establishing a connection Initialization During initialization, HP Velocity-enabled endpoints start streaming data transparently. No optimizations are performed.
HP Velocity functional overview Establishing a connection Beaconing Once an HP Velocity-enabled endpoint detects that a bidirectional network path is available, it periodically modifies packet headers (both IP and TCP) in a seamless way to advertise itself to other HP Velocity-enabled endpoints (Figure 2). IP headers can contain both IP ID-based beacons (using an option value of 0x420B) and IP Option-based beacons (using an option value of 0x880477FB).
Deployment configurations HP Velocity server-side deployments vary based on the virtualization architecture in use. This chapter covers the following information: • Deployments • Deployment considerations Deployments HP Velocity is preinstalled on HP thin clients. Use the following table to determine where to install HP Velocity on the server side. Virtualization architecture HP thin clients are directly connected to virtual desktops or applications.
Deployment configurations Deployments Direct Virtualization architectures that allow an HP thin client to connect directly to a virtual desktop must have the HP Velocity server installed on the virtual desktop. In this deployment, a connection broker does not act as a proxy. In Figure 3, thin clients A and B are directly connected to their respective virtual desktops A and B, as indicated by the color of the dotted lines. Figure 3.
Deployment configurations Deployments Proxied Virtualization architectures that require an HP thin client to access their virtual desktop via a proxy service provided by a connection broker (such as VMware View Manager) must have an HP Velocity server installed on the connection broker. In Figure 4, thin clients A and B are connected to their virtual desktops via the connection broker. An HP Velocity server is installed on the connection broker.
Deployment configurations Deployments Direct and proxied Some virtualization architectures allow both direct and proxied access to virtual desktops. In this deployment, the HP Velocity server must be installed on: • Virtual desktops that are accessed directly • Connection brokers that provide a proxy service to access the virtual desktop In Figure 5, thin client A connects to virtual desktop A through the connection broker, and thin client B connects to virtual desktop B directly. Figure 5.
Deployment configurations Deployments Terminal services In a terminal services deployment, multiple HP thin clients are connected to a terminal services server such as a Windows Server. In this deployment, the HP Velocity server must be installed on the terminal services server (Figure 6). Figure 6.
Deployment configurations Deployment considerations Deployment considerations Maximum number of protected flows HP Velocity supports a range of 16 to 1024 simultaneously protected flows. The minimum supported protected flows are: • 16 for HP thin clients • 16 for virtual desktops • 256 terminal services servers HP Velocity defaults to the minimum supported simultaneous flows. If the default setting is changed, the system must be rebooted for the change to take effect.
Installations This section outlines the requirements for installing the HP Velocity server and covers the following information: • • • • System requirements Server-side installation Installing HP Velocity on Microsoft Hyper-V Installing HP Velocity on servers with Broadcom teaming interfaces System requirements Before installing the HP Velocity server, ensure that the following resources are available. The different requirements for server operating system (OS) and virtual desktop OS installations.
Installations Server-side installation Server-side installation HP Velocity installs as a network driver on the following platforms: • Virtual desktops • Host OS of Microsoft Terminal Services • Microsoft Hyper-V server NOTE: During installation, HP Velocity will reset the system’s network interfaces, briefly interrupting network connections. If HP Velocity is installed over a remote connection, network connectivity might be disrupted. To install HP Velocity server: 1.
Installations Server-side installation •Select I Agree and click Next to continue. •Select Cancel to end the installation. The Select Installation Folder screen appears with the default location C:\Program Files\LiveQoS\HP Velocity\. 6. Either select the location where HP Velocity will be installed or accept the default location. 7. Either select Everyone (default) to install HP Velocity for all user accounts and administrators or select Just me to install HP Velocity only for the current user account. 8.
Installations Installing HP Velocity on Microsoft Hyper-V Installing HP Velocity on Microsoft Hyper-V Installing HP Velocity on Microsoft Hyper-V might require the following additional steps. If HP Velocity is installed directly on Microsoft Hyper-V and there is a “Local Area Connection Virtual Network” entry (Figure 7), ensure that the LiveQoS NDIS 6 Filter Driver is disabled for the physical network adapter (Figure 8). Figure 7. Microsoft Hyper-V network connections Figure 8.
Installations Installing HP Velocity on servers with Broadcom teaming inter- Installing HP Velocity on servers with Broadcom teaming interfaces Installing HP Velocity on Windows Servers using the Broadcom Advanced Control Suite NIC Teaming feature might require the following additional steps. If HP Velocity is installed on Windows Servers, ensure that the LiveQoS NDIS 6 Filter Driver is disabled in the adapter settings (Figure 10). To disable the LiveQoS NDIS 6 Filter Driver: 1.
Installations HP thin client installation Figure 10. Setting adapter properties 7. Click OK. HP thin client installation HP Velocity is preinstalled on select HP thin client images as of March 2012. HP Velocity updates may be available as an add-on. For more information, visit http://www.hp.com/ support.
HP Velocity management This section covers the following information: • HP Velocity Management Application modes • Identifying the HP Velocity operational mode on Windows • Setting the HP Velocity operational mode HP Velocity Management Application modes HP Velocity supports two Management Application display modes on Windows: Basic and Advanced. • Basic mode is launched by clicking the HP Velocity Management Application icon in the taskbar. By default, the Basic mode is enabled for HP thin clients.
HP Velocity management Setting the HP Velocity operational mode Table 1. HP Velocity icon color codes Icon Color Mode Description Green Protect HP Velocity is protecting one or more flows. Blue Protect HP Velocity is protecting, but flows have not been established. Orange Monitor HP Velocity is profiling present and trending network conditions. In this mode, HP Velocity does not protect flows. Gray HP Velocity is disabled.
HP Velocity management Setting the HP Velocity operational mode To set the HP Velocity operational mode: 1. Click the HP Velocity icon in the Windows taskbar (Figure 11). 2. On the HP Velocity Mode slider, select an operational mode (Figure 12). Figure 12. HP Velocity Mode slider NOTE: Windows administrator privileges are required to change the HP Velocity mode of operation.
HP Velocity group policy HP Velocity is installed with a default configuration suitable for most deployments. This chapter describes how to create a custom HP Velocity configuration: • • • • HP Velocity Policy Engine Configuring HP Velocity using Group Policy About the HP Velocity Administrative Template Registry keys used in HP Velocity configuration NOTE: The information in this chapter is intended for the IT staff administrating HP Velocity.
HP Velocity group policy Configuring HP Velocity using Group Policy Configuring HP Velocity using Group Policy This section provides instructions on how to add the Administrative Template to the GPO and update the HP Velocity configuration using the Group Policy Editor. Adding the HP Velocity Administrative Template to a GPO Choose the Group Policy Editor for the GPO to be edited: • For local group policy administration, use gpedit.msc. • For domain group policy administration, use gpmc.
HP Velocity group policy Configuring HP Velocity using Group Policy Updating the HP Velocity configuration using the Group Policy Editor Once the Administrative Template has been added to the GPO, configuration changes for HP Velocity can be made as required. HP recommends that HP Velocity settings be changed on all systems in an organizational unit (OU). This ensures that all installations in the OU use the same settings. To change HP Velocity settings on all systems in an OU: 1.
HP Velocity group policy About the HP Velocity Administrative Template NOTE: If the HP Velocity Management Application is not running, changes using Group Policy are applied after a system reboot or the next time the Management Application is restarted. About the HP Velocity Administrative Template The Administrative Template (Figure 15) consists of policies that allow administrators to create a custom configuration for HP Velocity.
HP Velocity group policy About the HP Velocity Administrative Template • LiveTCP - Latency Mitigation • Logging NOTE: For more information about HP Velocity settings, see “Registry keys used in HP Velocity configuration” on page 39. Management Application Mode The Advanced Management Application provides a toolset for monitoring and debugging network flows using HP Velocity, as well as the ability to temporarily override configuration settings. Table 2.
HP Velocity group policy About the HP Velocity Administrative Template Setting Default Options LiveQ - Packet Loss Protection Enabled Enable or disable LiveQ - Packet Loss Protection. Protects application flows from packet loss by automatically adapting the amount of added redundancy. LiveTCP - Latency Mitigation Enabled Enable or disable LiveTCP - Latency Mitigation. Provides latency mitigation for RDP, RGS, and ICA protocols.
HP Velocity group policy About the HP Velocity Administrative Template Boot Settings HP Velocity system boot settings specify the number of protected flows and whether the collection of local and remote system information is enabled or disabled. Table 4. Boot settings Setting Default Options Number of protected flows Thin Client: 16 Set the maximum number of simultaneously protected flows. HP Velocity supports 16 to 1024 protected flows.
HP Velocity group policy About the HP Velocity Administrative Template Setting Default Options Special TCP Ports 554 1720 5060 1723 Special Port Filter for TCP and UDP: Special UDP Ports 554 5060 The special port filter allows administrators to enable or disable support for specific protocols. By default, the special port filter is preconfigured to include ports that provide special protocol support, such as RTSP (554), H.323 (1720), PPTP (1723), and SIP (5060).
HP Velocity group policy Setting About the HP Velocity Administrative Template Default IP Address Whitelist Filter Options Whitelist IP filter: The whitelist IP filter is evaluated after the blacklist IP filter. It applies only to those IP addresses that pass through the blacklist IP filter. The whitelist IP filter allows administrators to specify a list of destination IP addresses to which HP Velocity protection will be applied. The whitelist filter is exclusive.
HP Velocity group policy About the HP Velocity Administrative Template LiveTCP - Protocol Latency Mitigation Policy Filters LiveTCP - Latency Mitigation policy filters can be enabled or disabled for RDP, RGS, and ICA protocols. Table 7. LiveTCP - Protocol Latency Mitigation Policy Filter settings Setting Default Options RDP Port 3389 Specify the port number used for RDP. RDP Policy Enabled Enable or disable LiveTCP latency mitigation for the RDP protocol.
HP Velocity group policy About the HP Velocity Administrative Template Setting Default Options Congestion Avoidance Enabled Enable or disable congestion avoidance. HP Velocity Congestion Avoidance automatically adjusts HP Velocity protection to accommodate detected bandwidth constraints. When Congestion Avoidance is active and bandwidth constraints are detected, the bandwidth and default TLR settings described in this table are overridden to ensure the best network performance possible.
HP Velocity group policy About the HP Velocity Administrative Template LiveTCP - Latency Mitigation HP Velocity LiveTCP - Latency Mitigation optimizes TCP throughput and provides latency mitigation for RDP, RGS, and ICA protocols. Table 9. LiveTCP - Latency Mitigation settings Setting Default Options Latency Threshold 20 ms Set the latency threshold in milliseconds. Latency mitigation is activated once this threshold is exceeded.
HP Velocity group policy About the HP Velocity Administrative Template Logging HP Velocity logs provide detailed endpoint statistics on a per-flow and per-flow-record basis. HP Velocity maintains the statistics history for up to seven days. Logs are stored in the temporary folder for the current user. For example, C:\Users\\AppData\Local\Temp. The log filename format is HPVelocity_logtype_yymmdd.log. Table 10.
HP Velocity group policy Registry keys used in HP Velocity configuration Registry keys used in HP Velocity configuration The following sections list the registry keys (grouped by category) used by HP Velocity.
HP Velocity group policy Registry keys used in HP Velocity configuration Management Application key Registry key Parameter Software\Policies\IPQ\CurrentVersion\AdvancedMgmtAppMode Advanced Management Application mode System Settings keys Registry key Parameter Software\Policies\IPQ\CurrentVersion\Protection Protection configuration Software\Policies\IPQ\CurrentVersion\LiveQMode Loss protection configuration Software\Policies\IPQ\CurrentVersion\LiveTCPMode Latency mitigation mode Software\Polic
HP Velocity group policy Registry keys used in HP Velocity configuration Policy Filters (Port and IP) keys Registry key Parameter Software\Policies\IPQ\CurrentVersion\IPBlacklistFilters Blacklist IP filter configuration Software\Policies\IPQ\CurrentVersion\IPWhitelistFilters Whitelist IP filter configuration Software\Policies\IPQ\CurrentVersion\TCPTransparentFilters Transparent TCP filter configuration Software\Policies\IPQ\CurrentVersion\UDPTransparentFilters Transparent UDP filter configuration
HP Velocity group policy Registry keys used in HP Velocity configuration LiveQ - Target Loss Rate (TLR) Policy Filters keys Registry key Parameter Software\Policies\IPQ\CurrentVersion\DefaultTLRIPFilters Default-level TLR IP filter configuration Software\Policies\IPQ\CurrentVersion\DefaultTLRTCPFilters Default-level TLR filters, TCP configuration Software\Policies\IPQ\CurrentVersion\DefaultTLRUDPFilters Default-level TLR filters, UDP configuration Software\Policies\IPQ\CurrentVersion\HighTLRIPFilt
HP Velocity group policy Registry keys used in HP Velocity configuration LiveTCP - Protocol Latency Mitigation Policy Filters keys Registry key Parameter Software\Policies\IPQ\CurrentVersion\LiveTcpRdpPort RDP port Software\Policies\IPQ\CurrentVersion\LiveTcpRdpEnabled RDP enabled by default Software\Policies\IPQ\CurrentVersion\LiveTcpRgsPort RGS port Software\Policies\IPQ\CurrentVersion\LiveTcpRgsEnabled RGS enabled by default Software\Policies\IPQ\CurrentVersion\LiveTcpIcaPort ICA port Softw
HP Velocity group policy Registry keys used in HP Velocity configuration Logging keys Registry key Parameter Software\Policies\IPQ\CurrentVersion\DefaultStatisticsLogging Sets network statistics logging time interval Software\Policies\IPQ\CurrentVersion\DefaultFlowLogging Sets flow logging time interval Software\Policies\IPQ\CurrentVersion\DefaultFlowRecords Enables or disables flow records HP Velocity Server Side Deployment Guide 44
Using the Management Application The HP Velocity Management Application is a Windows application that provides a toolset for monitoring and troubleshooting HP Velocity-protected flows. For more information, see “HP Velocity management” on page 23.
Using the Management Application Network Statistics Statistics view The Statistics view provides basic information on how the network is performing (Table 11). The statistics are accumulated in time-incremented bins (Figure 16). The Total column represents the accumulated statistics since either the system was started or statistics were last cleared. Figure 16. Network Statistics view Table 11.
Using the Management Application Network Statistics Statistic name Description Collection Time The amount of time that the Management Application has been collecting statistics. Units are HH:MM:SS. NOTE: Collection time is reset when the statistics are cleared. Advanced Statistics view The Statistics view displays a subset of the total statistic counters available. Select the Advanced Statistics check box (Figure 17) to view more detailed information (Table 12).
Using the Management Application Network Statistics Statistic name Description Packets Encoded The number of IP packets that were encoded by HP Velocity into segments. Segments Sent The number of encoded segments sent by HP Velocity to each remote HP Velocity-enabled endpoint. Segments Received The number of encoded segments received by HP Velocity from each remote HP Velocity-enabled endpoint.
Using the Management Application Network Statistics Statistic name Description Non-accelerated Throughput (Rx) The bytes of all received non-protected IP packet data in Kbps for intervals or KB/MB for cumulative totals. Working with network statistics HP Velocity provides controls on the Network Statistics tab (Table 13) for working with the data available. Table 13.
Using the Management Application Network Monitor Network Monitor The Network Monitor tab displays information about endpoint network conditions—throughput and packet loss—as graphs (Table 14). Low corrected loss with Velocity is optimal when sufficient bandwidth is available (Figure 18). Figure 18. Network Monitoring graph Table 14. Network monitoring graphs Graph name Color Description Throughput Blue line The received throughput over the most recent interval.
Using the Management Application Flow Information Additional statistics (Table 15) are displayed to the left of each graph. Table 15. Additional network loss and network throughput data. Value Description Network Loss Peak The highest packet loss for the duration of the graph. Without Velocity The packet loss over the most recent interval. With Velocity The corrected loss over the most recent interval. Network Throughput Peak The highest received throughput for the duration of the graph.
Using the Management Application Flow Information NOTE: For Linux thin clients, flow information can be viewed from the virtual desktop or terminal services server they are connected to. Remote system statistics (Table 16) are displayed in the Protected Endpoints pane. Table 16. Remote system statistics Statistic name Description Remote Host The IP address of the remote host. Product The product name as defined in the System BIOS. CPU Usage The percentage of CPU in use.
Using the Management Application Flow Information Statistic name Description LiveQ Indicates whether HP Velocity is Protecting the flow or Monitoring the flow for packet loss. TLR The TLR applied to the protected flow as a percentage that HP Velocity will attempt to achieve. Encoding The encoding level applied to the protected flow.
Using the Management Application Flow Information The Flow Information tab also displays three types of graphs for protected endpoints and protected flows. Double-clicking an entry in either the Protected Endpoints or Protected Flows pane automatically displays a graph that shows one of the following: • Local throughput (Figure 22) • Remote throughput (Figure 23) • Latency (Figure 24) NOTE: System information and per-flow statistics are available in HP Velocity Release 1.5.0 and later. Figure 22.
Using the Management Application Flow Information Figure 23. Remote Rx throughput for an endpoint Figure 24.
Using the Management Application Configuration Configuration HP Velocity is installed with a default configuration suitable for most deployments. The Configuration tab enables administrators to view and temporarily modify the current HP Velocity configuration. After a system reboot, all modified settings revert to values configured in either the HP Velocity Group Policy, if applied, or the system default values. For more information, see “HP Velocity group policy” on page 26.
Using the Management Application Configuration Configuring global system settings Configure global system settings (Table 18) to set the HP Velocity operational mode; enable or disable optimizers, packet loss protection, latency mitigation, and beaconing; and set the network maximum transmission unit (MTU). Figure 25. System settings configuration dialog Table 18.
Using the Management Application Configuration option Description LiveTCP - Flow Control Optimizer Enable or disable LiveTCP - Flow Control Optimizer. LiveWiFi - Prioritization Enable or disable LiveWiFi Optimizer. Configuration Improves the throughput of applications like multimedia flowing and remote desktop access by modifying TCP flow control mechanisms to perform better in WiFi environments. Ensures that HP Velocity-protected flows experience lower latency, lower jitter, and higher throughput.
Using the Management Application Configuration Displaying system boot settings Boot system parameters (Table 19) specified when configuring HP Velocity using Group Policy can be viewed on the Boot Settings dialog (Figure 26). For information on configuring boot settings, see “HP Velocity group policy” on page 26. Figure 26. Boot Settings dialog Table 19. Boot Settings parameters Configuration option Description Protected Flows The maximum number of simultaneous protected flows.
Using the Management Application Configuration Configuring policy filters Policy filters can be used to specify the IP addresses and ports of flows to be protected by HP Velocity, and the level of protection applied to the filtered flows. For more information, see Table 5 on page 32. The following formats must be used when configuring the policy filters. Other formats will generate an error message: • IP Address: Use a space-separated list of CIDR-format IP addresses and subnet mask pairs.
Using the Management Application Configuration Policy filter precedence When configuring multiple HP Velocity policy filters, the filters are evaluated in the following order: 1. Blacklist IP 2. Whitelist IP 3. Whitelist port 4. Transparent port 5. Special port IP filters The IP blacklist and whitelist filters allow administrators to filter data flows received from the application by destination IP address. This tells HP Velocity whether to accelerate this flow.
Using the Management Application Configuration Whitelist IP filter The whitelist IP filter is evaluated after the blacklist IP filter. It applies only to IP addresses that are not matched in the blacklist IP filter. The whitelist IP filter allows administrators to specify a list of destination IP addresses where the data flows will be protected by HP Velocity. The whitelist filter is exclusive.
Using the Management Application Configuration Whitelist port filter If a port number is specified in a whitelist port filter field (White TCP Ports or White UDP Ports), only data flows meeting the following criteria are protected by HP Velocity. Transmitting packets: • The destination IP address for the data flow is not specified in the blacklist IP filter. • There are no addresses in the whitelist IP filter, or the destination IP address for the data flow is specified in the whitelist IP filter.
Using the Management Application Configuration NOTE: If a port that HP Velocity is not aware of is added to the special port filter, it will be ignored. IMPORTANT: Removing a port from the special port filter might cause applications to fail. LiveQ policy filters LiveQ policy filters allow administrators to specify the IP addresses and ports that are associated with a particular target loss rate (Table 20). Separate filters are provided for each supported target loss rate.
Using the Management Application Configuration Figure 28. LiveQ policy filter configuration dialog Table 20. LiveQ policy filter parameters Configuration option Description Target Loss Rate The loss rate that the HP Velocity will attempt to achieve for all active HP Velocity-protected flows. TLR options are: • 0.04% • 0.1% • 0.2% • 0.4% IP Address The list of IP addresses where the data flows will be protected by HP Velocity.
Using the Management Application Configuration LiveTCP policy filters HP Velocity LiveTCP - Latency Mitigation optimizes TCP throughput and provides latency mitigation for RDP, RGS, and ICA protocols. To configure LiveTCP policy filter parameters (Table 21), select LiveTCP under Policy Filters (Figure 29). NOTE: LiveTCP policy filters are also configurable from the LiveTCP link in the navigation tree. Figure 29. LiveTCP policy filter configuration dialog Table 21.
Using the Management Application Configuration Configuring LiveQ packet loss settings HP Velocity protects application flows from packet loss by automatically adapting the amount of added redundancy. Table 22 describes the configurable packet loss protection parameters. Figure 30. LiveQ - Packet Loss Protection configuration dialog NOTE: LiveQ policy filters are also configurable by selecting LiveQ under Policy Filters.
Using the Management Application Configuration Table 22. LiveQ configurable parameters Configuration option Description Global Target Loss Rate Specify the loss rate that HP Velocity will attempt to achieve for all active HP Velocity-protected flows. Available values are 0.04%, 0.1%, 0.2%, and 0.4%. The default is 0.04%. NOTE: Aggressive target loss rates might not be achievable in very highloss networks or bandwidth restricted environments.
Using the Management Application Configuration option Description Burst Loss Protection Set BLP to protect against correlated loss in the network. Configuration Available values are: • Off: Disables BLP for correlated loss. • On: Enables BLP for correlated loss. • Auto: Allows HP Velocity to determine if BLP is required and automatically turn the feature on if required. Auto is the default value. NOTE: BLP might degrade performance for highly latency-sensitive applications.
Using the Management Application Configuration NOTE: LiveTCP policy filters are also configurable by selecting LiveTCP under Policy Filters. Table 23. LiveTCP - Latency Mitigation parameters Configuration option Description Latency Threshold Set the latency threshold in milliseconds. Latency mitigation is activated once this threshold is exceeded. The default setting is 20 ms. Congestion Control Apply the degree of congestion control required.
Using the Management Application Configuration Table 24. Network simulator parameters Configuration option Description Transmit Loss Rate (%) Set the specified percentage of loss for the data flows being transmitted over the network. Receive Loss Rate (%) Set the specified percentage of loss for the data flows being received from the network. IMPORTANT: Always set the Loss Rate to 0 under normal operating conditions. The network simulator is intended for debugging and demonstration purposes only.
Using the Management Application Configuration HP Velocity configuration report The HP Velocity Configuration Report contains extensive information about HP Velocity, its settings, and the currently protected flows. To generate the HP Velocity Configuration Report, select Export Current Configuration To File. By default, the report is saved with the filename HPVelocityConfig.txt in the temporary folder for the current user (C:\Users\\AppData\Local\Temp).
Troubleshooting This chapter provides the following basic troubleshooting information for HP Velocity: • Why does the “Another version of this product is already installed” message appear? • Why does the “Do you want to allow the following program from an unknown publisher to make changes to your system” message appear? • Why does a message about a driver that has not passed Windows Logo Compatibility testing appear? • • • • Why are there multiple protected streams for one PCoIP or RGS connection? Is tr
Troubleshooting Why are there multiple protected streams for one PCoIP or RGS Why are there multiple protected streams for one PCoIP or RGS connection? A single RDP connection will only have one accelerated stream generated. However, for PCoIP or RGS, there will be multiple protected streams that come and go between client and server. This is an expected behavior.
