background image

MeshLinx MWI-5000 User Guide 

 

MESHLINX CONFIDENTIAL 

8

7.1.10 Diversity 

Diversity controls the use of antennas on the MWI-5000. Each wireless interface has a 
primary antenna (Antenna 1, default) and a secondary antenna (Antenna 2). Either of 
these antennas can be selected manually for an interface. The setting applies to both 
receive and transmit operations. 
 
Setting Diversity to Both causes the device driver to alternately try each antenna, 
eventually settling on the antenna that yields the best performance. 
 
For transmit (using Both), the preferred antenna setting is maintained on a per-station 
basis and attempts to transmit to a station are tried first using the preferred antenna from 
the last transmission. 
 
For receive (using Both), the antenna setting is mostly driven by the transmit diversity 
algorithm (transmit diversity trumps receive diversity). When there is little transmit 
activity to drive diversity, the receive diversity algorithm selects an antenna that has the 
highest RSSI for all stations combined. Typically, it is not the case that traffic will be 
mostly receive traffic and most of the time, diversity will be driven by the transmit 
algorithm. 
 
The need to modify this parameter is site-dependent. Some users may find that setting 
Diversity to Both yields better overall performance for all stations. Other users may find 
that best performance is achieved by selecting a particular antenna. The best way to 
establish this is to experiment with the three settings, measure the performance yield of 
each setting and make a decision based on those results. 
 

7.1.11 Header (preamble) 

The Header parameter determines the default preamble type that the MWI-5000 MAC 
will use to transmit in 11B mode. It has no meaning in OFDM modes (11G or 11A). 
 
In 11B mode, a longer preamble allows the receiving side greater time to synch-up on the 
incoming frame (144 microseconds for long, 72 microseconds for short). The MWI-5000 
will receive 11B frames that are transmitted by a station with 

either

 long or short 

preamble and will respond to (acknowledge) received frames using the same preamble 
length as the received frame. To summarize: 
 

 

The header parameter is specific to 11B mode 

 

It determines only how the MWI-5000 will transmit 11B frames 

 

It takes 72 microseconds longer to transmit a 11B frame with a long preamble  

 

Using long preamble may achieve greater interoperability with legacy 11B 
stations 

Summary of Contents for MWI-5000

Page 1: ...nx Inc All rights reserved The information contained in this document including design text and graphics is the property of MeshLinx Inc Time Based Auto Recognition TBAR is a registered trademark of M...

Page 2: ...s 7 4 0 Configuration and Operation 8 4 1 Default Settings 8 4 2 Command Line Interface 13 4 2 1 Command Conventions 13 4 2 2 Getting Started 13 4 2 3 Commands 13 4 2 4 Firmware Update 37 4 3 Web Inte...

Page 3: ...Rate 87 7 1 10 Diversity 88 7 1 11 Header preamble 88 7 1 12 Beacon Interval 89 7 1 13 Fragmentation 89 7 1 14 RTS CTS 89 8 0 Glossary 90 1 0 Scope This User guide is the primary document for installa...

Page 4: ...nation using the three sector SDMA antenna provided Alternately omni directional antennas can be used for a dual band AP with continuous monitoring In either mode the MWI 5000 Listen Learn protocol si...

Page 5: ...istribution Because configuration and reconfiguration of the sectors is so simple and MeshLinx s Listen Learn software can help with interference mitigation and load balancing this consideration for s...

Page 6: ...000 System but they do tend to be severe attenuators and you should expect reduced range on the other side 3 2 Power and Network Connections The ideal location must also provide for power and network...

Page 7: ...e into the MWI 5000 System External Power Supply connector The unit will begin its initialization This will take approximately one minute 3 2 4 Changing the Factory Default MAC Address The MWI 5000 s...

Page 8: ...ion and Operation This section discusses the configuration and operation of the MWI 5000 System 4 1 Default Settings The table below displays the settings contained in the defaults configuration file...

Page 9: ...pen System 802 1X Authentication Off Shared Key Authentication Off Shared Key 802 1X Authentication Off 802 1X Authentication Off WPA Authentication Off WEP Key Length 64 WEP Key Select 1 WEP Key 1 31...

Page 10: ...asic Rates 1 2 5 5 11 1 2 5 5 11 1 2 5 5 11 RTS Off Off Off RTS Threshold 2346 2346 2346 Self CTS Off Off Off Fragmentation Off Off Off Fragmentation Threshold 2346 2346 2346 Txpower 7 7 7 Auto Transm...

Page 11: ...0 DHCP Client Off Ethernet Parameter Setting Port Status Started Speed Auto Auto Negotiation On Full Duplex Mode Auto Flow Control On VLAN 802 1Q Tagged Off DHCP Parameter Setting Subsystem Status St...

Page 12: ...eauthentication Status Disabled Authentication Retries 2 Authentication Retry Interval 60 Key Cache Time Secret Key HTTP Server Parameter Setting HTTP Server Enabled WLAN Access Enabled Ethernet Acces...

Page 13: ...ces Boldface indicates commands and keywords that are entered exactly as shown Italics indicate values that must be supplied by you Examples Examples show screen displays and the command line in the s...

Page 14: ...tations stats radius switch http snmp version log autoconfig dfs tpc rrm help list help load help reset help save help set bootconfig ethernet tcpip ap sector radius switch http snmp autoconfig dfs tp...

Page 15: ...get wif 1 2 3 channel Get channel number and AICS get wif 1 2 3 maxrate Get sector max rate get wif 1 2 3 basicrate Get sector basic rate setting get wif 1 2 3 sensitivity get sector RX sensitivity ge...

Page 16: ...2 3 mode 11B 11BG 11G 11A Set the sector s radio band For 2 4Ghz band select the type s of stations allowed to associate set wif 1 2 3 channel channel_number auto fixed Set channel number and AICS on...

Page 17: ...ng both Set header set wif 1 2 3 allofdmbasic enable disable enable or disable all OFDM rates as basic rate set wif 1 2 3 diversity antenna1 antenna2 both Set antenna diversity per wif basis set wif 1...

Page 18: ...IP address for the AP Ex 10 1 4 85 get tcpip mac Get MAC address for wifX get tcpip netmask Get the subnet mask for the AP Ex 255 255 255 0 get tcpip gateway Get gateway router address used by AP Ex 1...

Page 19: ...tus Port Status Started Auto Negotiation On Speed Auto Full Duplex Mode Auto Flow Control On VLAN 802 1Q Tagged Off Link Status Link Up Linked Speed 100 Linked Duplex Full STP Root Path Cost 10 get et...

Page 20: ...enable disable Set Ethernet duplexing to full half This is dependant on the type of Ethernet network you will be connecting to set ethernet auto enable disable Set Ethernet auto negotiation enable dis...

Page 21: ...s ip addr2 Set DNS server IP addresses to be used by DHCP maximum two minimum one When specifying two addresses the addresses must be separated by a space set dhcp domain domain name or ip Set domain...

Page 22: ...1 configure channel selection metric policy setting 1 Sum RSSI based set autoconfig LnL config 1 configure channel configuration policy setting 1 Pre defined sequence rotation based channel configurat...

Page 23: ...t the channel scanning policy setting in SDMA mode get autoconfig LnL roguemitigation Returns the current status of the rogue detection and mitigation start autoconfig LnL start Autoconfig LnL on the...

Page 24: ...ds display and modify the global security settings for the AP set ap security legacy clear legacy encrypt wpa wpa2 wpa wpa2 tsn Sets the global security mode for the AP The following table shows the t...

Page 25: ...address set radius port int set RADIUS port set radius key set RADIUS secret key CLI prompts user for the key The key is displayed as set radius keycachetime set RADIUS key cache time set radius timeo...

Page 26: ...e To setup a wireless bridge mesh network configure a number of MeshLinx AP s in the following way In this example the network can have up to 5 AP s however a user could select up to 16 set wif3 chann...

Page 27: ...sg ssid mapwifs 1 2 3 Maps the service group onto the specified WIFs set sg ssid unmapwifs 1 2 3 Unmaps the service group from the specified WIFs set sg ssid activate Activates this service group on...

Page 28: ...e VLAN priority used by the service group 4 2 3 24 SNMP Server get snmp display SNMP configuration settings get snmp wlanaccess display wlan access get snmp ethaccess display Ethernet access get snmp...

Page 29: ...the channel switch is to take place set wif 1 2 3 quiet count duration causes a wif to stop transmitting including beacons and count is the number of Target Beacon Transmission Times until the quiet i...

Page 30: ...tations in seconds set dfs measurement remote duration duration set the duration for which the measurement should be carried out by the station in seconds set dfs measurement remote starttime start ti...

Page 31: ...ddress issue noise histogram measurement request and retrieves report Station Address is optional It can be Unicast broadcast multicast address If station address is not given then it is considered to...

Page 32: ...set rrm beacon duration duration set the measuremet duration set rrm beacon period period m s t set the measurement period m msec s seconds t TU Default is TU set rrm beacon measurement_interval inte...

Page 33: ...terval set rrm hiddennode duration duration set the measurement duration get rrm hiddennode get the current values set rrm statistics interval interval set the randomization interval set rrm statistic...

Page 34: ...ge set txop limit for different mode for best effort class of service set qos be default set all parameters for best effort class of service to default settings get qos be displays all parameters for...

Page 35: ...vice to default settings get qos vo displays all parameters for voice class of service Admission Control set qos acm enable disable enable disable Admission Control for 802 11 Qos get qos acm displays...

Page 36: ...diate enable disable set reset Immediate Block Ack get qos blockack immediate Displays whether immediate Blockack is enabled or not set qos blockack delayed enable disable set reset Delayed Block Ack...

Page 37: ...ixp425 le gnu_redboots bin l X890 ixp425 le gnu_redboots bin 192 168 1 1 Once the file has been transferred use the dd command to load it into the flash dd if tmp redboot file of dev mtdblock0 The out...

Page 38: ...terface Setup a TFTP server on either a Linux or Windows system and connect it to the network Copy three image files XXX_ixp425 le gnu_waps jffs2 XXX_ixp425 le gnu_rootfs jffs2 and XXX_ixp425 le gnu_k...

Page 39: ...XXX is the build number to the TFTP server directory tftpboot on Linux Reboot the AP and press Control C immediately to get in the RedBoot screen Type flash l local IP address h TFTP server IP address...

Page 40: ...168 1 x where x is a number between 2 and 255 so that the full IP address does not conflict with another device in the subnet Open a Web browser and enter the address of the MWI 5000 System e g http...

Page 41: ...ange the configuration files and contains controls for starting and stopping all system interfaces as well as a system reset button While the MWI 5000 System is in operation statistics are being captu...

Page 42: ...in the log represents the time since the last power on in days hours minutes seconds hundredths Figure 4 4 shows a typical message log shortly after system startup Table 4 1 Message Log Information Ca...

Page 43: ...d to connect to radius server IP Address information Link established on ethernet port at X speed warning Link lost on ethernet port information Access point started warning Access point failed to sta...

Page 44: ...ide MESHLINX CONFIDENTIAL 4 4 3 2 Configure Menu The Configure menu has fourteen submenus that group system configuration into logical categories System SSID Security VLAN Filter Password TCP IP DHCP...

Page 45: ...nfigure System Window Top Portion The Configure System menu includes the auto configuration setting and all of the authentication and security settings The Mode menu includes selections for Range or C...

Page 46: ...s with no security enabled WEP authenticate only stations with WEP enabled WPA Only authenticate only stations with WPA enabled WPA2 WPA WPA2 authenticate only stations with WPA or WPA2 enabled or TSN...

Page 47: ...er Guide MESHLINX CONFIDENTIAL 4 4 3 4 Configure SSID Security VLAN Figure 4 7 Configure SSID Security VLAN Window The Configure SSID Security VLAN window includes all of the settings used for setting...

Page 48: ...MeshLinx MWI 5000 User Guide MESHLINX CONFIDENTIAL 4 4 3 5 Configure Filter Figure 4 8 Configure Filter Window...

Page 49: ...eshLinx MWI 5000 User Guide MESHLINX CONFIDENTIAL 4 The Configure Filter window allows you to select MAC addresses to allow or to disallow 4 3 6 Configure Password Figure 4 9 Configure Password Window...

Page 50: ...assword window allows you to change the default password 4 3 7 Configure TCP IP Figure 4 10 Configure TCP IP Window The Configure TCP IP window contains the settings for the system IP addresses and th...

Page 51: ...MeshLinx MWI 5000 User Guide MESHLINX CONFIDENTIAL 5 4 3 8 Configure DHCP Figure 4 11 Configure DHCP Window...

Page 52: ...MeshLinx MWI 5000 User Guide MESHLINX CONFIDENTIAL 5 The Configure DHCP window includes all of the settings for DHCP hosting 4 3 9 Configure HTTP Figure 4 12 Configure HTTP Window...

Page 53: ...HTTP Interface allows you to configure WLAN Access Enable Ethernet Access Enable and also to change the HTTP port 4 3 10 Configure RADIUS Figure 4 13 Configure RADIUS Window The Configure RADIUS wind...

Page 54: ...MeshLinx MWI 5000 User Guide MESHLINX CONFIDENTIAL 5 4 3 11 Configure SNMP Figure 4 14 Configure SNMP Parameters...

Page 55: ...SNMP Interface contains the Access Points SNMP Server Parameters 4 3 12 Configure Ethernet Figure 4 15 Configure Ethernet Window The Configure Ethernet menu includes the link speed with duplex and fl...

Page 56: ...rfaces Figure 4 16 Configure Wireless Interfaces Window The Configure Wireless Interface menu has submenus for the individual WIFs These menus contain all of the AP settings for the selected WIF 4 3 1...

Page 57: ...ure Basic Settings includes the basic parameters such as Broadcast SSID and Enabling or Disabling Spectrum Management and Radio Measurement and the working Channel of each wif 4 3 15 Configure Advance...

Page 58: ...ide MESHLINX CONFIDENTIAL 5 The Configure Advanced Settings include all the advanced parameters that can be configured for each WIF 4 3 16 Configure Spectrum Management Figure 4 19 Configure WIFs Spec...

Page 59: ...MeshLinx MWI 5000 User Guide MESHLINX CONFIDENTIAL 5 The Configure Spectrum Management contains the parameters to be set for Spectrum Management...

Page 60: ...000 User Guide MESHLINX CONFIDENTIAL 6 4 3 17 Configure Backhaul Settings Figure 4 20 Configure WIFs Backhaul Settings The Configure Backhaul Settings is used to configure the Backhaul settings on a p...

Page 61: ...nx MWI 5000 User Guide MESHLINX CONFIDENTIAL 6 4 3 18 Configure Listen and Learn Figure 4 21a Configure Listen and Learn Features Top Portion Figure 4 21b Configure Listen and Learn Features Bottom Po...

Page 62: ...n and Learn menu provides a convenient interface to all Listen and Learn features These features apply to the AP as a whole and allow automatic configuration and adaptation to the wireless environment...

Page 63: ...MeshLinx MWI 5000 User Guide MESHLINX CONFIDENTIAL 6 Figure 4 22b Configure QoS Parameters Bottom Portion...

Page 64: ...hLinx MWI 5000 User Guide MESHLINX CONFIDENTIAL 6 The Configure QoS contains the standard QoS configurations 4 3 19 1 Configure QoS EDCA Parameters Figure 4 23a Configure QoS EDCA Parameters Top Porti...

Page 65: ...MeshLinx MWI 5000 User Guide MESHLINX CONFIDENTIAL 6 Figure 4 23b Configure QoS EDCA Parameters Bottom Portion...

Page 66: ...MESHLINX CONFIDENTIAL 6 The Config EDCA Parameters configures the QoS parameters for different types of Data streams 4 3 19 2 Configure QoS Frame Classification Parameters Figure 4 24 Configure QoS Fr...

Page 67: ...Guide MESHLINX CONFIDENTIAL 6 The configure Frame classification parameters configures the IP protocol attributes for different types of data streams 4 3 19 3 Configure QoS QoS Frames Figure 4 25 Con...

Page 68: ...MeshLinx MWI 5000 User Guide MESHLINX CONFIDENTIAL 6 The configure QoS Frames configures the BlockAck configurations for a MAC Address 4 3 20 Configure DFS Figure 4 26 Configure DFS Control Parameters...

Page 69: ...e MESHLINX CONFIDENTIAL 6 The Configure DFS menu provides a convenient interface to all 802 11h DFS process control parameters These features apply to each WIF 4 3 21 Configure RRM Figure 4 26 Configu...

Page 70: ...INX CONFIDENTIAL 7 The Configure RRM menu provides a convenient interface to all 802 11k Remote Radio Measurement requests Measurement requests may be issued on any WIF 4 3 22 Configure TPC Figure 4 2...

Page 71: ...MeshLinx MWI 5000 User Guide MESHLINX CONFIDENTIAL 7 The Configure TPC menu provides an interface to Transmit Power Capabilities These capabilities apply to the AP as a whole on a per channel basis...

Page 72: ...3 23 Configure Date and Time Figure 4 28 Configure Date and Time The Configure Date and Time can be used to configure the system Date and Time Commands Menu The Commands menu includes three submenus...

Page 73: ...ns Figure 4 29 Command Configuration Window Use the Commands Configurations menu to manage the configuration files Management includes creating a new configuration file displaying the contents of curr...

Page 74: ...DENTIAL 7 4 3 24 1 Commands Start Stop Interface Figure 4 30 Command Start Stop Interface Window The Commands Start Stop Interface window allows you to directly start and stop all of the system interf...

Page 75: ...uide MESHLINX CONFIDENTIAL 7 4 3 24 2 Commands Reset Figure 4 31 Command Reset Window The Commands Reset window allows you to perform a system reset It does not change the configuration but does close...

Page 76: ...e Command Flash Update is used to update the Firmware Image on the Access Point 4 3 25 Statistics Window The Statistics window includes five submenus Ethernet WLAN Interfaces System Each of the window...

Page 77: ...MeshLinx MWI 5000 User Guide MESHLINX CONFIDENTIAL 7 4 3 25 1 Statistics Ethernet Figure 4 33 Ethernet Statistics Window...

Page 78: ...inx MWI 5000 User Guide MESHLINX CONFIDENTIAL 7 4 3 25 2 Statistics Wireless Interfaces Figure 4 34a Sector 1 of 3 Statistics Window Top Portion Figure 4 35b Sector 1 of 3 Statistics Window Bottom Por...

Page 79: ...MeshLinx MWI 5000 User Guide MESHLINX CONFIDENTIAL 7...

Page 80: ...3 25 3 Statistics System Figure 4 36 System Statistics Window 4 3 26 The Support Page The support page provides important links to the MeshLinx Web site online Help files and to the firmware update s...

Page 81: ...via the MeshLinx Web site At www meshlinx com click Technical Support After supplying your username and password click Ticket to fill out a trouble ticket or the email address support meshlinx com to...

Page 82: ...ut Power 10 watts Mechanical Connectors SMB Female 12 Material Reflector Aluminum Radome n a Overall Dimensions 10 33 H 16 0 Diameter 26cm 40 6cm Weight Indoor Version 4 55 lbs 2 1 kg 6 1 Reference De...

Page 83: ...5000 product represents a wireless interface consisting of radio base band and MAC components Wireless sector and wireless interface are used interchangeably to describe the same thing The MWI 5000 pr...

Page 84: ...is enabled see discussion of this parameter below If radar signatures are detected the MWI 5000 will switch to a radar free channel The process of switching channels may disrupt the quality of time se...

Page 85: ...ce and congestion in that default channel it may or may not yield optimal performance Manually selecting a new channel is experimental at best You can simply try another channel and see if your throug...

Page 86: ...mit Power Adjustment parameter determines behavior of the MWI 5000 device driver with respect to transmit power limitation It defaults to a setting of Max54 which ensures that the device driver will n...

Page 87: ...e interfaces on your MWI 5000 board 7 1 9 Maximum Data Rate The maximum data rate parameter limits the data rate used on a MWI 5000 interface It defaults to the maximum rate allowed for an operating m...

Page 88: ...f the time diversity will be driven by the transmit algorithm The need to modify this parameter is site dependent Some users may find that setting Diversity to Both yields better overall performance f...

Page 89: ...iate fragmentation although there may be extreme cases where better throughput could be achieved using fragmentation Users in this situation probably have a serious problem in their network that needs...

Page 90: ...ns Authentication The process of establishing the identity of another unit client user device prior to exchanging sensitive information Bluetooth An open specification for short range wireless voice a...

Page 91: ...ive to the TCP IP suite of protocols which are the basis for information exchange on the Internet HTTP is an application protocol Hub In data communications a hub is a place of convergence where data...

Page 92: ...everal narrowband channels at different frequencies The technology was first conceived in the 1960s and 1970s during research into minimizing interference among channels near each other in frequency I...

Page 93: ...twork point the data should be sent to In general a switch is a simpler and faster mechanism than a router which requires knowledge about the network and how to determine the route Relative to the lay...

Page 94: ...WLANs TKIP provides per packet key mixing a message integrity check and a re keying mechanism thus fixing the flaws of WEP WEP Wired Equivalent Privacy is the built in baseline security protocol that...

Reviews: