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HP ProLiant xw2x220c Remote Graphics Software 5.2.5 User Guide - Page 173

Configuring your network for optimal performance, named Link Speed & Duplex.

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11-4 Configuring your network for optimal performance RGS depends on low network latency and reasonably high network bandwidth. There are several methods to test and measure the network bandwidth, latency, and the number of hops between Sender and Receiver computers: • Use the ping command to measure network latency. From a command prompt on Windows or a terminal window on Linux, execute ping hostname. This will report the network latency. Be sure the ping protocol (ICMP) is not blocked by a firewall. Windows may be set up with IPSec filters-be sure there is no IPSec filter policy disabling ICMP traffic. • Use Traceroute (Linux) or tracert (Windows) to measure the network latency between two computers. Traceroute will report the number of hops it takes to reach a computer in addition to the network latency. • Use ttcp to measure the network bandwidth. ttcp is available at: www.pcausa.com/Utilities/pcattcp.htm Once you've characterized your network performance, you can decide if improvement is required. Several possible steps are described below. The computer NIC will auto-negotiate the network speed with the network switches on the local network. The negotiated speed can vary from 10 Mb/sec half duplex to 10 Gb/sec full duplex. Most modern NICs and switches will negotiate the highest possible speed available. However, unless the network has been carefully designed for maximum throughput, the NICs and switches may auto-negotiate to a sub-optimal speed. If the NIC and switches are configured to auto-negotiate properly, you can leave the settings to auto-negotiate. If you want to force the network to operate at a particular speed, the settings in the NIC and switches can be hardcoded. You must be careful with these settings, however. If the NIC and switch settings don't complement each other, the network will have poor performance. • Configuring the NIC on Windows-You can change the link speed and duplex mode on Windows by opening the Device Manager. Click Control Panel>System>Hardware Tab>Device Manager. Once the Device Manager is open, click the + next to Network adapters. Then, right-click on the network adapter that you want to change, and select Properties. Click the Advanced tab. Each network adapter has its own properties/settings that can be changed. The property that affects the link speed and duplex is usually named "Link Speed & Duplex". Click that property. If you want auto-negotiation, select the Auto Detect entry in the Value box. If you want to hard-code the speed and duplex, always choose the fastest link your network can support, and always choose full duplex. • Configuring the NIC on Linux-On Linux systems, the ethtool tool can be used to configure networking. Perform the following steps to obtain and set the network characteristics on Linux. To obtain the LAN characteristics for interface 0, as root, type: $ /usr/local/sbin/ethtool eth0 To set the LAN characteristics for a 100 Mb/sec connection running full-duplex mode, as root, type: $ /usr/local/sbin/ethtool -s eth0 speed 100 duplex full autoneg off If you are not satisfied with your network performance, look at the log files on your network switch (if the Local Computer is connected to one). A significant number of errors on the switch port may indicate that the computer or network is not configured correctly. Work with your IT organization to optimize your computer and network configuration. Optimizing RGS performance 173

Section	Page
Introduction to HP Remote Graphics Software	11
Typical RGS configuration	12
RGS Sender and Receiver	13
RGS features	14
Additional RGS features	14
Tabloid-size page	15
Obtaining HP technical support	15
RGS overview	16
Supported computers and operating systems	17
RGS version numbering	18
RGS licensing	18
RGS products	19
Sender and Receiver interoperability	21
Application support	21
Networking support	21
Connection topologies	21
The Remote Computer frame buffer	21
One-to-one connection	22
Many-to-one connection	23
One-to-many connection	23
Establishing an RGS connection using Standard Login	24
Single Sign-on and Easy Login	25
RGS operating modes	26
Multi-monitor configurations	27
Remote Computer monitor blanking overview	28
Video overlay surfaces	28
Image quality	29
Remote USB overview	30
USB session switching	30
Isochronous USB support	30
Install-time configuration of remote USB	31
Unique smartcard handling	32
Computers supporting remote USB	34
Supported USB devices	34
Remote audio overview	34
Remote audio on Windows	35
Remote audio on Linux	36
Support of sound recording devices on Windows	37
Computers and operating systems which support RGS audio	38
Remote Clipboard overview	39
Interoperability of RGS and Microsoft Remote Desktop Connect	41
Using RGS with desktop virtualization	41
Remote Computer power saving states	42
Supported keyboard locales	42
RGS security features	43
Installing RGS	44
Installing RGS on Windows	44
Installing the Receiver on Windows	44
Manual installation of the Receiver on Windows	44
Automatic installation of the RGS Receiver on Windows	46
Receiver installation log file	47
Uninstalling the RGS Receiver on Windows	47
Installing the Sender on Windows	48
Manual installation of the Sender on Windows	48
Using the RGS Diagnostics Tool on Windows	50
Starting the Sender on Windows	51
The Sender GUI on Windows	52
Manually starting and stopping the Sender on Windows	52
Setting the Windows Sender process priority	53
Setting the Sender process priority using regedit	54
Setting the Sender process priority using PTF	55
Using the rgadmin tool	56
Installing and enabling Single Sign-on	58
1. Enabling Single Sign-on during installation	58
2. Using the rgadmin tool to enable Single Sign-on	59
3. Manually enabling Single Sign-on	59
Setting the local security policy	60
Disabling Single Sign-on	60
1. Using the rgadmin tool to disable Single Sign-on	60
2. Manually disabling Single Sign-on	60
Installing and Enabling Easy Login	61
1. Enabling Easy Login during installation	61
2. Using the rgadmin tool to enable Easy Login	61
3. Manually enabling Easy Login	61
Chaining custom GINA modules for Easy Login	62
1. Install time specification of the custom GINA module	62
2. Using the rgadmin tool to specify a custom GINA module	62
3. Manually enabling hprgina.dll to load a custom GINA modul	62
Setting the Local Security Policy	63
Disabling Easy Login	63
1. Using the rgadmin tool to disable Easy Login	63
2. Manually disabling Easy Login	63
Automatic installation of the RGS Sender on Windows	64
Sender installation log file on Windows	65
Uninstalling the RGS Sender on Windows	65
Installing RGS on Linux	66
Installing the Receiver on Linux	66
Uninstalling the Receiver on Linux	67
Installing audio on the Linux Receiver	67
Audio Requirements	67
System Preparation	67
Customized Audio Installation	67
Installing the Sender on Linux	69
Starting the Sender on Linux	71
Disabling the Sender GUI on Linux	72
Uninstalling the Sender on Linux	72
Pre-connection checklist	73
Local Computer (Receiver) checklist	73
Remote Computer (Sender) checklist	73
NIC binding on the Sender	75
Manual NIC reconfiguration	75
NIC reconfiguration using the NIC binding properties	77
Using RGS through a firewall	78
Using RGS	79
Using RGS in Normal Mode	79
Receiver Control Panel	81
Setup Mode	81
Remote Display Window Toolbar	84
Remote Computer monitor blanking operation	85
Linux connection considerations	86
Full-screen crosshair cursors	86
Gamma correction on the Receiver	86
Black or blank connection session with the Linux Sender	86
RGS login methods	87
Standard Login	87
Easy Login	89
Single Sign-on	90
Changing your password	91
Collaborating	92
Creating a collaboration session	92
Collaboration notification dialog	93
Advanced capabilities	95
General options	96
Remote audio operation	97
Configuring audio on the Sender	97
Calibrating audio on the Sender	100
Disabling audio on the Sender	102
Using audio	103
Potential audio issues	104
Remote USB operation	105
Attaching a local USB device to a Remote Computer	106
USB session switching	108
Supported remote USB devices	108
Remote USB Access Control List	109
Determining USB device information	111
Determining USB device information for Windows	111
Determining USB device information for Linux	111
Verifying the USB data	111
Troubleshooting remote USB	112
Computers supporting remote USB	112
Supported USB devices	112
Check USB cable connections	112
Reset the USB device	112
Enable Remote USB	113
HP Remote Virtual USB Driver	114
USB device drivers and program support	115
Network timeouts	116
Network timeouts	116
Receiver network timeouts	117
Sender network timeout	119
Network timeout issues	120
Dialog timeouts	121
Hotkeys	122
Changing the Setup Mode hotkey sequence	123
Remote Clipboard operation	124
Remote Clipboard data transfers	125
Remote Clipboard filtering	127
Using the RGS log to detect clipboard problems	128
Receiver and Sender logging	131
Receiver logging	131
Sender logging	132
Statistics	133
Using Directory Mode	134
Directory file format	134
Starting the Receiver in Directory Mode	135
RGS properties	136
Property syntax	136
Setting property values in a configuration file	136
Setting properties on the command line	137
Authenticator properties	137
RGS Receiver properties	138
Receiver property hierarchy	138
Properties set using the Receiver Control Panel	138
Receiver command line properties	138
rgreceiverconfig file properties	138
Archive file properties	138
Receiver default properties	138
Receiver property groups	139
Receiver general properties	142
Receiver browser properties	147
Receiver audio properties	148
Receiver microphone property	148
Receiver USB properties	148
Receiver network properties	149
Receiver hotkey properties	149
Receiver Remote Clipboard properties	150
Receiver logging properties	151
Receiver image codec properties	152
Windows placement and size properties	153
RGS Sender properties	154
Sender command line properties	154
rgsenderconfig file properties	154
Sender default properties	154
Sender property groups	154
Sender general properties	155
Sender microphone property	156
Sender network timeout properties	157
Sender USB access control list properties	157
Sender NIC binding properties	157
Sender clipboard property	158
Sender event logging on Windows	159
The HPRemote log	159
Usages of the HPRemote log	161
Additional information on event logging	162
Remote Application Termination	163
RGS connection and user status	163
HPRemote log format	163
Sample agent	165
Agent design issues	169
Desktop session logout	169
Selective environment shutdown	169
Wrapping applications of interest	169
Administrator alerts	170
Anticipating user disconnects and reconnects	170
General agent design guidelines	170
Additional safeguard features for Windows systems	170
RGS Sender Service Recovery Settings	170
Microsoft Remote Desktop Recovery	171
Optimizing RGS performance	172
Performance tuning for all platforms	172
Performance tuning for Windows	172
Troubleshooting graphics performance	172
Configuring your network for optimal performance	173
Troubleshooting RGS	174
Potential RGS issues and troubleshooting suggestions	174
RGS error messages	175
Receiver error messages	175
Appendix A: Using RGS with HP VDI	178
A-1 VMware ESX networking considerations	179
A-2 Using RGS with static HP VDI	179
A-2-1 Create a new virtual machine	179
A-2-2 Modify the VMware ESX configuration (.vmx file)	180
A-2-3 Installing the RGS Sender on the virtual machine	182
A-3 Using RGS with dynamic HP VDI (based on VMware View)	182
A-3-1 Create a new virtual machine	183
A-3-2 Install the RGS Sender on View Master/Parent VM and mo	183
A-3-3 Install View Agent on View Master/Parent VM	183
A-3-4 Install the RGS Receiver and View Client on the client	183
A-4 Running RGS diagnostics	184
A-5 Disabling the RGS warning popup	184
A-6 RGS operating modes available with VDI	184
A-7 Using HP Session Allocation Manager with HP VDI	184
Appendix B: USB devices supported by RGS	185

Match case Limit results 1 per page

Optimizing RGS performance 173

11-4 Configuring your network for optimal performance

RGS depends on low network latency and reasonably high network bandwidth. There are several methods to test

and measure the network bandwidth, latency, and the number of hops between Sender and Receiver computers:

•

Use the ping command to measure network latency. From a command prompt on Windows or a terminal

window on Linux, execute

ping hostname

. This will report the network latency. Be sure the ping protocol

(ICMP) is not blocked by a firewall. Windows may be set up with IPSec filters—be sure there is no IPSec

filter policy disabling ICMP traffic.

•

Use

Traceroute

(Linux) or

tracert

(Windows) to measure the network latency between two computers.

Traceroute will report the number of hops it takes to reach a computer in addition to the network latency.

•

Use

ttcp

to measure the network bandwidth.

ttcp

is available at:

www.pcausa.com/Utilities/pcattcp.htm

Once you’ve characterized your network performance, you can decide if improvement is required. Several

possible steps are described below.

The computer NIC will auto-negotiate the network speed with the network switches on the local network. The

negotiated speed can vary from 10 Mb/sec half duplex to 10 Gb/sec full duplex. Most modern NICs and

switches will negotiate the highest possible speed available. However, unless the network has been carefully

designed for maximum throughput, the NICs and switches may auto-negotiate to a sub-optimal speed.

If the NIC and switches are configured to auto-negotiate properly, you can leave the settings to auto-negotiate. If

you want to force the network to operate at a particular speed, the settings in the NIC and switches can be hard-

coded. You must be careful with these settings, however. If the NIC and switch settings don’t complement each

other, the network will have poor performance.

•

Configuring the NIC on Windows—

You can change the link speed and duplex mode on Windows by

opening the

Device Manager. Click

Control Panel>System>Hardware Tab>Device Manager

Once the

Device Manager is open, click the

next to Network adapters.

Then, right-click on the network adapter that

you want to change, and select

Properties

Click the

Advanced

tab.

Each network adapter has its own

properties/settings that can be changed.

The property that affects the link speed and duplex is usually

named "Link Speed & Duplex".

Click that property.

If you want auto-negotiation, select the Auto Detect

entry in the

Value

box.

If you want to hard-code the speed and duplex, always choose the fastest link your

network can support, and always choose full duplex.

•

Configuring the NIC on Linux—

On Linux systems, the

ethtool

tool can be used to configure networking.

Perform the following steps to obtain and set the network characteristics on Linux. To obtain the LAN

characteristics for interface 0, as root, type:

$ /usr/local/sbin/ethtool eth0

To set the LAN characteristics for a 100 Mb/sec connection running full-duplex mode, as root, type:

$ /usr/local/sbin/ethtool -s eth0

speed 100

duplex full autoneg off

If you are not satisfied with your network performance, look at the log files on your network switch (if the Local

Computer is connected to one). A significant number of errors on the switch port may indicate that the computer

or network is not configured correctly. Work with your IT organization to optimize your computer and network

configuration.