LigoPTP User’s Guide Revision 1.4 February 1, 2013 Copyright © 2005-2010 LigoWave www.ligowave.
FCC Warning CE Mark Warning This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
List of additional approval antenna: RSS (Category I Equipment): 1:Omni Directional （External ,black）RPSMA-J connector 3dBi ,impedance is50ohm This device complies with Industry Canada licenceexempt RSS standard(s). Operation is subject to the following two conditions: 2:MCX 5GHz 23 dBi directional antenna, impedance is50ohm (1) This device may not cause interference, and 3:ARC EXSITETM Parabolic Dual-Pol Dish Antenna 4.94-5.
Contents Warning ............................................................................................................................................... 2 FCC Caution ............................................................................................................................................... 2 IMPORTANT NOTE .................................................................................................................................... 2 CE Mark Warning ........................
System Functions...................................................................................................................................... 39 OLED Control............................................................................................................................................ 40 Firmware Upgrade .................................................................................................................................... 41 Tools...........................................
About This Guide Purpose This document provides information and procedures on installation, setup, configuration, and management of the PTP unit. Definitions, Acronyms and Abbreviations The following typographic conventions and symbols are used throughout this document: Additional information that may be helpful but which is not required. Important information that should be observed.
Introduction The PTP link consists of two units, one on each end: Master and Slave. Master unit operates as an access point; therefore the Slave connects to the Master and operates as a client. Figure 1 – Point-to-Point Link Elements From the point of view of the administrator the Local unit is the one with the direct connection to the Web management interface and the Remote unit is the one which is connected to the Local unit in PTP link.
Application Examples Building to Building Connectivity Use the PTP for building to building connectivity in the private networks such as campus building connections, corporate building connections, universities and schools that wish to own and manage their own networks and eliminate the costly recurring charges from service providers. The same connectivity is perfect to build backup/failover connections.
Figure 3 – PTP Backhaul PTP Features Technical Features High throughput; Flexible Channel Sizes (20MHz and 40MHz); Flexible center frequency selection (allows selecting center frequency in 5MHz step); Robust MAC layer: Selective repeat ARQ with block ACK Only lost packets are retransmitted Highly efficient in noisy environments Low throughput loss over long distance Forward error correction (recovers packets with errors without retransmit) Dynamic TDD (see the Figure 4 – Point to Point
Accessing the PTP Unit’s Web Management The default IP address of the PTP unit is 192.168.2.66 with a subnet mask of 255.255.255.0. Step 1. Configure your PC with a static IP address on the 192.168.2.0 subnet with mask 255.255.255.0. Step 2. Connect the PTP unit in to the same physical network as your PC. Step 3. Open the Web browser and browser, type the default IP address of the PTP unit https://192.168.2.66/ to load the login page. Step 4.
Default Settings The default settings of the PTP unit configuration parameters are listed in the table below: Parameter Default value IP address 192.168.2.66 Netmask 255.255.255.0 Login admin Password admin01 Link ID Link name Encryption None Ethernet configuration auto SNMP R/O community public SNMP R/O user public SNMP R/O password password Quick Setup Guide Step 1. Login in to the PTP unit web management.
Figure 6 – Specify Unit's Operating Mode Step 3. Specify a Link ID. Link ID must be identical for each unit of the same link. For instructions on changing this setting refer to the Radio section in the Web management chapter. Figure 7 – Specify PTP Link ID Step 4. Choose the Country in which the PTP link will operate. PTP unit will automatically adjust Radio settings to meet country/region specific regulations.
Figure 8 – Specify Country Step 5. Set Frequency at which PTP link will operate on Master unit. Change Frequency applies only for Master units. The Slave unit will choose the frequency automatically after the Master unit will be found. For instructions on changing this setting refer to the Radio section in the Web management chapter. Figure 9 – Specify Frequency Step 6. Set Channel width at which PTP link will operate.
Figure 10 – Specify Channel Width Step 7. Set link encryption for secure data transfer between PTP units. The security settings (encryption and passphrase) must be the same on each side of the link otherwise the link will not establish. For instructions on changing this setting refer to the Radio section in the Web management chapter. Figure 11 – Set the Encryption Step 8. Reduce Transmit Power before testing the units placed on a table.
Step 9. Change web management login password. This is strongly recommended for security reasons. For instructions on changing the administrator’s password refer to the corresponding section Administrative Account. Figure 12 – Change Administrator's Password Step 10. Save configuration and Reboot the device. Figure 13 – Save Configuration Step 11. LigoWave Setup the second unit of the PTP link in the same way and check if configured units established a Link.
Verify PTP Link Connection After the both units of the PTP Link are configured, verify the PTP link quality: Step 1. Connect to the unit’s web management interface. Step 2. Check the Signal Indicator bar located at the bottom of the web management interface: Figure 14 – Signal Indicator Bar Step 3.
Figure 15 – iperf Results (TCP) LigoWave Page 17
Figure 16 – iperf Results (UDP) Step 4. LigoWave If test results are meeting the requirement and are no configuration will be done Transmit power should be increased, before mounting PTP units outside. Note that if the distance between the units is short, do not set Transmit Power to the maximum value. Observe the Signal Indicator bar – if it is red, decrease the Transmit Power.
Align Antenna Avoid standing directly in front of an operating antenna while aligning. The PTP units are equipped with two signal strength feedback systems: antenna alignment tool on the Web management interface and antenna alignment tool on the OLED screen. Follow the steps to establish a radio link between the two PTP units and align the units for the best signal strength. Step 1. Ensure that power is supplied to both PTP link units. Step 2.
Web Management PTP products are designed to provide superior performance at long range distances. With a proprietary wireless driver that was written for the sole purpose of optimizing wireless point to point links, one can achieve much higher throughput, especially at longer links, than standards based products. General Operation This section provides information about concepts used in PTP unit’s Web management interface.
Warning messages are displayed in red and contain PTP unit’s system cautions: Figure 21 – Warning Message The PTP unit contains built in validation for configuration settings in the web management interface. If a user sets an incorrect value in the entry field, its frame turns red, and if the user tries to save such incorrect configuration, an error message appears at the end of the page: Figure 22 – Error Message Signal Indicator The PTP web management interface has a PTP link signal indicator.
The color of the Signal indicator will change according to the signal level quality of the unit. The green color means excellent link quality while the red color of the indicator means that link quality is poor. The red circle beside full filled red indicator switches on immediately when the signal level becomes too high and overload is detected.
Status Use the Status menu to check the current status of the PTP unit and established link (this is the default page when accessing the device’s web management interface). The Information page displays generic information and status of the PTP unit. The page is divided into three main categories: System, Network and Wireless. The System section displays the identification information of the PTP unit. The Wireless section presents main wireless settings.
Product name – displays the product name. Link name – displays the link name which is used to identify the PTP unit on the network. Link location – displays the link location, which is used to identify the PTP unit on the network. Latitude – displays the latitude coordinates of the device. Longitude – displays the longitude coordinates of the device. Firmware version – displays the device hardware and software version.
Transmit power, dBm – displays TX power value of the local PTP unit. Remote transmit power, dBm – displays TX power value of the remote PTP unit. Statistics The statistics page displays detailed statistics of the PTP link performance. The Statistics page is divided into the two sections: Networks statistics and W-Jet statistics.
Remote – statistics of the Remote unit. Rx bytes – number of transmitted bytes. The number in brackets (+xx) displays the data change since the last page refresh. Tx bytes – number of the received bytes. The number in brackets (+xx) displays the data change since the last page refresh. Rx packets – number of received data packets The number in brackets (+xx) displays the data change since the last page refresh. Tx packets – number of transmitted data packets.
Figure 29 – RSSI Graph Traffic diagram displays Incoming and Outcoming traffic statistical data: Figure 30 – Traffic Statistics Graph RX/TX errors diagram displays statistical data of RX drop of the Local and Remote units, TX try of the Local and Remote units: LigoWave Page 27
Figure 31 – RX/TX Errors Statistics Graph Memory diagram displays memory usage data: Figure 32 – Memory Status Graph CPU load diagram displays device CPU load in appropriate time basis: Figure 33 – CPU Load Graph LigoWave Page 28
Frequency diagram displays device operating frequency in GHz: Figure 34 – Frequency Graph at which PTP Link is Operating LigoWave Page 29
Configuration The Configuration page is subdivided into following pages: Network – to set main network configuration for PTP device. Radio – to setup radio settings of the PTP link. System – to setup system date, administrator's access settings, configure system log feature. Services – to setup SNMP, RCMS settings and configure device alerts. Maintenance – for device firmware update, reboot, reset device to factory defaults, troubleshooting file download and to view system log messages.
Restrict management to – select interfaces on which management access will be restricted. Radio Use the Configuration | Radio menu to set up radio settings for the PTP link: Figure 36 – Radio Settings Operating mode – specify the operating mode of the local device to create PTP link [Master/Slave]. The device mode depends on the network topology. Master – in this mode local device is the controlling PTP link unit. Slave – in this mode local device connects to the Master unit.
The available Frequencies list varies depending on the selected Country and Channel width. Channel width – choose the channel width in MHz [20/40]. Both sides (Master and Slave) of a link must have the same Link ID, Channel width and Encryption specified. Encryption – select the security level for the PTP link: None – means no security on link. AES – means encryption with passphrase. Passphrase – specify passphrase of the AES security [8-63 characters].
System The System page is subdivided into 4 sections: Link settings – to specify PTP link settings. System date – to setup system date and time of the PTP unit. Administrative account – to change administrator's password. System log – to configure logging of the system messages. Link Settings Figure 37 – Link Settings Link name – specify name of the PTP link that is used to identify the unit on the network [maximum 255 ASCII characters].
Figure 38 – System Date: NTP Configuration Configuration – choose the system clock configuration mode [NTP/Manual]. Timezone – select the timezone. Time zone should be specified as a difference between local time and GMT time. Save last known time – select to recall the timestamp that was saved on last reboot. When NTP is enabled, this option will set system clock to last reboot time if no NTP servers are available.
Administrative Account We recommend changing the default administrator password as soon as possible. The Administrative Account menu is for changing the administrator’s password. Figure 40 – Changing the Administrator's Password Old password – enter the old administrator password. New password – enter the new administrator password for user authentication. Verify password – re-enter the new password to verify its accuracy.
Message level – specify system's message tracing level. The level determines the importance of the message and the volume of messages generated by the PTP unitThe levels are in increased importance order [emergency, alert, critical, error, warning, notice, information, debug]. Default: info. The PTP unit can be configured to send system log messages to a remote server: Syslog forward – select to enable remote system logging.
Name – displays an administratively assigned name. System location – displays the physical location of the PTP unit [string]. R/O community – specify the read-only community name for SNMP version 1 and version 2c [string]. The read-only community allows a manager to read values, but denies any attempt to change values. R/O user – specify the user name for read-only SNMPv3 access [string]. The read-only community allows a manager to read values, but denies any attempt to change values.
Figure 44 – System Alerts Configuration Enable alerts – select to enable alert notifications on the system. System check interval, s – specify interval in seconds at which the device will send notifications of unexpected system behavior. System alerts: Wireless link status change – system will send notification on Wireless link status change. Ethernet link status change – system will send notification on Ethernet link status change.
Use inform – select to wait for an acknowledgment from SNMP manager that trap was received. Retry count – specifies maximum number of times to resend an inform request [1-10]. Default: 5. Retry timeout – specifies number in seconds to wait for an acknowledgment before resending request [1-10]. Default: 1. SMTP Settings Server address – specify the IP address or hostname of the networked SMTP server. Server port – specify the SMTP Port Number is the port number used by the networked SMTP server.
Restore configuration from file - click to upload an existing configuration file to the device. View system log - click to view current trace messages. The Syslog viewer utility provides debug information about the system services and protocols. If the device's malfunction occurs recorded messages can help operators to locate misconfiguration and system errors. The syslog capability can help operators to locate misconfiguration and system errors.
Figure 47 – OLED Control Enable OLED – select to enable or disable OLED on the PTP unit. PIN required – select to enable or disable OLED protection with PIN. PIN – enter 4 digits for OLED protection. Firmware Upgrade To update your device firmware use the Firmware upgrade section under the Maintenance menu, select the firmware file and click the Upload button: Figure 48 – Firmware Upload on the System Current version – displays version of the current firmware.
Tools Use the Tools menu to use the following device applications: Site survey – to view the list of wireless networks in the surrounding area. Antenna alignment – to align device antenna. Link test – to check quality of the established PTP link. Antenna Alignment The antenna alignment test measures signal quality between the Master and Slave units.
Figure 51 – Site Survey Tool Start scan – click to perform the Site Survey test. Show only W-Jet AP – select this option to sort Site Survey results. Link Test We recommend to ensure that there is no traffic on the link before running the Link Test as results may not be completely accurate. Use the Link test tool to check the quality of the established PTP link. This tool tests the throughput at selected packet sizes and iterations. Link test can be run from either the Remote unit or Local unit.
Figure 52 – Link Test Tool Iterations – specify number of test iterations. Packet sizes – specify packet sizes in bytes at which the test will be performed. Start – click to start the throughput test. Stop – click to stop the throughput test.
Logout Click the Logout link on the top right corner of the main menu to leave the Web management interface: Figure 53 – Logout Page Logout – click to leave the PTP unit Web management. When the Logout button is clicked, the administrator is redirected to the login page of the PTP unit.
Appendix A) Run PTP Link in Small Distance Follow up the steps to run the PTP link for testing it in small distances (e.g. testing on a table) and achieve throughput up to 70 Mbps. Step 1. Power-up both units: Master and Slave. Step 2. PTP units must be placed at least a distance of 2 meters from each other. Step 3.
Mode: MIMO 2x2 Data rate: 300 Mbps ACK timeout: Distance 0 km/miles Click Apply button for configuration to take effect. Step 4. Observe the Signal Indicator bar at the bottom of the screen. If it is green the quality of the link is excellent whereas the red color indicates a poor quality of the link. If results do not meet the requirements increase or decrease the Transmit Power on Radio page depending on the status of the Signal Indicator bar. The Signal must be approximately 25-30dBm. Step 5.
Figure 56 – iperf Results (UDP) Step 6. If the result meets the requirements, before mounting PTP units outside, increase the Transmit Power.
B) Resetting Unit to Factory Defaults PTP units have the capability of being reset to defaults by pinging the device with a certain packet size when the radio is booting. During the startup of the device, when the drivers of the ethernet interfaces are loaded, the discovery daemon is started. The daemon suspends startup process for 3 seconds and waits for ICMP "echo request" packet of length 369 bytes. If the packet received, the discoveryd resets the device to default configuration.
