HP mt40 Mobile manual Beaconing, Handshaking, Protected state

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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). TCP flows can use TCP Option-based beacons (using an option value of 0x01 No-Operation and seven sets of End of Option Lists 00000000000000).

Once an HP Velocity-enabled endpoint processes enough beacons on a network flow to discover that another HP Velocity-enabled endpoint is at the other end, handshaking occurs.

NOTE: The use of TCP Option-based beacons for TCP flows and IP

Option-based beacons for UDP flows can be controlled through the

HP Velocity Policy Engine.

Figure 2. IPQ beaconing

Handshaking

An HP Velocity-enabled endpoint will initiate a three-way handshaking procedure with an HP Velocity-enabled endpoint discovered during beaconing. Once the handshake is completed, both HP Velocity-enabled endpoints enter the protected state.

Protected state

In the protected state, HP Velocity-enabled endpoints exchange information about current and trending network conditions. This information is then used to intelligently activate and adjust various optimizers.

HP Velocity Server Side Deployment Guide

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Contents HP Velocity Server Side Deployment Guide Page Contents Using the Management Application HP Velocity group policyTroubleshooting Intended audience About this documentPurpose Document styles and conventions Convention Description SamplenameOff mode Protect modeMonitor mode HP Velocity functional overviewEstablishing a connection InitializationHandshaking BeaconingProtected state Deployments Deployment configurationsVirtualization architecture Direct Example of a direct deploymentProxied Example of a proxied deploymentDirect and proxied Example of a direct and proxied deploymentTerminal services Example of a terminal services deploymentMaximum number of protected flows Deployment considerationsAbout HP Velocity beacons System requirements InstallationsRequirement Server OS Virtual desktop OS Server-side installation To install HP Velocity serverConfirm Installation screen appears Installing HP Velocity on Microsoft Hyper-V Microsoft Hyper-V network connectionsClick Change Adapter Settings HP thin client installation Setting adapter propertiesHP Velocity management Identifying the HP Velocity operational mode on WindowsHP Velocity Management Application modes Icon Color Mode Description Setting the HP Velocity operational modeHP Velocity icon color codes To set the HP Velocity operational mode Displaying the protected or monitored flow countHP Velocity Policy Engine HP Velocity group policyMicrosoft Group Policy Configuring HP Velocity using Group Policy Adding the HP Velocity Administrative Template to a GPOTo change HP Velocity settings on all systems in an OU Updating a policy configurationAbout the HP Velocity Administrative Template Management Application Mode Setting Default Options Management Application ModeSystem Settings System settings Setting Default OptionsSetting Default Options Policy Filters Port & IP settings Setting Default Options Boot SettingsBoot settings Setting Default Options Policy Filters Port & IPWhitelist filter for TCP and UDP Special Port Filter for TCP and UDPBlacklist IP filter Whitelist IP filter LiveQ Target Loss Rate FiltersTLR Filters LiveTCP Protocol Latency Mitigation Policy Filters LiveQ Packet Loss ProtectionAggressive encoding as soon as it detects LiveTCP Latency Mitigation settings Setting Default Options LiveTCP Latency MitigationLogging settings Setting Default Options LoggingRegistry keys used in HP Velocity configuration Management Application key System Settings keysBoot Settings keys Registry key ParameterPolicy Filters Port and IP keys LiveQ Target Loss Rate TLR Policy Filters keys LiveQ Packet Loss Protection keys LiveTCP Protocol Latency Mitigation Policy Filters keysLiveTCP Latency Mitigation keys Logging keys Using the Management Application Network StatisticsNetwork statistics Statistics viewStatistic name Description Advanced Statistics view Advanced statisticsPackets Encoded Working with network statistics Network statistics operations Operation DescriptionNetwork Monitor Graph name Color DescriptionAdditional network loss and network throughput data Flow InformationValue Description Remote system statistics Protected data flow statisticsUsing the Management Application Flow Information Local and remote system informationLocal Rx throughput for an endpoint Remote Rx throughput for an endpoint Configuration Configuring global system settings Configuration option Description Displaying system boot settings Configuring policy filters Policy Filters configuration dialogIP filters Policy filter precedenceBlacklist IP filter Whitelist IP filter Port filtersTransparent port filter Whitelist port filterSpecial port filter LiveQ policy filters Configuration option Description LiveTCP policy filters Configuring LiveQ packet loss settings LiveQ Packet Loss Protection configuration dialogLiveQ configurable parameters Configuring LiveTCP Latency Mitigation LiveTCP Latency Mitigation configuration dialogConfiguring the network simulator LiveTCP Latency Mitigation parametersGeneral settings Network simulator parametersHP Velocity configuration report Troubleshooting Procedure in this document doesn’t work Is traffic between two HP Velocity servers only monitored?

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