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AWK-5232

References

6-3

Differences between RSTP and STP

RSTP is similar to STP, but includes additional information in the BPDUs that allow each bridge to confirm that
it has taken action to prevent loops from forming when it decides to enable a link to a neighboring bridge.
Adjacent bridges connected via point-to-point links will be able to enable a link without waiting to ensure that
all other bridges in the network have had time to react to the change. The main benefit of RSTP is that the
configuration decision is made locally rather than network-wide, allowing RSTP to carry out automatic
configuration and restore a link faster than STP.

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Содержание airworks awk-5232

Страница 1: ...Moxa AirWorks AWK 5232 User s Manual First Edition October 2011 www moxa com product 2011 Moxa Inc All rights reserved ...

Страница 2: ... improvements and or changes to this manual or to the products and or the programs described in this manual at any time Information provided in this manual is intended to be accurate and reliable However Moxa assumes no responsibility for its use or for any infringements on the rights of third parties that may result from its use This product might include unintentional technical or typographical ...

Страница 3: ...ve mode only 3 22 Advanced Settings 3 22 Using Virtual LAN 3 23 Configuring Virtual LAN 3 24 DHCP Server for AP Client operation mode s AP mode only 3 25 Packet Filters 3 26 RSTP Settings for Master or Slave mode only 3 28 SNMP Agent 3 30 Storm Protection 3 31 Link Fault Pass Through for Client Slave mode only 3 32 Auto Warning Settings 3 32 System Log 3 32 Syslog 3 33 E mail 3 34 Relay 3 36 Trap ...

Страница 4: ...ng Telnet and Browser Access 5 5 6 References 6 1 Beacon 6 2 DTIM 6 2 Fragment 6 2 RTS Threshold 6 2 STP and RSTP 6 2 The STP RSTP Concept 6 2 Differences between RSTP and STP 6 3 7 Supporting Information 7 1 About This User s Manual 7 2 DoC Declaration of Conformity 7 2 Federal Communication Commission Interference Statement 7 2 R TTE Compliance Statement 7 3 Firmware Recovery 7 3 Technical Suppo...

Страница 5: ...rate at temperatures ranging from 0 to 60 C for standard models and 40 to 75 C for extended temperature models and is rugged enough for any harsh industrial environment The following topics are covered in this chapter Overview Package Checklist Product Features Product Specifications Functional Design LED Indicators Beeper Reset Button Relay Digital Output Antenna ...

Страница 6: ...any of these items is missing or damaged please contact your customer service representative for assistance 1 AWK 5232 4 Swivel type Antennas 2 dBi RP SMA 2 4 5 GHz 1 Quick Installation Guide 1 Software CD 1 Moxa Product Warranty Booklet 1 Cable Holder with a Screw Protective Caps NOTE The above items come with the AWK 5232 standard version The package contents may vary in a customized version Pro...

Страница 7: ... not being supplied via PoE FAULT Red Blinking Cannot get an IP address from the DHCP server interval 1 sec Off There is no error condition STATE Green Red Green Software Ready Blinking Green The AWK has been located by AWK Search Utility interval 1 sec Red Booting or Error condition WLAN1 Green Amber Green On WLAN1 functions in Client mode Blinking Green WLAN1 s data communication is running in C...

Страница 8: ... defaults by pressing the RESET button with a pointed object like a straightened paper clip System reboot Hold the RESET button down for under 5 seconds and then release Reset to factory default Hold the RESET button down for over 5 seconds until the STATE LED starts blinking green Release the button to reset the AWK 5232 Relay Digital Output The AWK 5232 has one relay output which consists of the...

Страница 9: ...ennae The AWK 5232 supports 802 11 a b g n with 2x2 MIMO technology and a dual RF solution Antennas 1A and 1B are the MIMO antennas associated with RF1 and 2A and 2B are the MIMO antennas associated with RF2 1A 2A 2B 1B units mm in ...

Страница 10: ... to quickly set up your wireless network and test whether the connection is running well With this function guide you will gain access to the functions you need easily The following topics are covered in this chapter First time Installation and Configuration Communication Testing Function Guiding Map ...

Страница 11: ...ight through cable or crossover cable to connect the AWK 5232 to a computer If the LED indicator on AWK 5232 s LAN port lights up it means the connection is established Step 3 Set up the computer s IP address Set an IP address on the same subnet as the AWK 5232 Since the AWK 5232 s default IP address is 192 168 127 253 and the subnet mask is 255 255 255 0 you should set the IP address of the compu...

Страница 12: ...test methods to make sure the network connection has been established Please refer to the following section for more details Communications Testing After installation you can run a sample test to make sure the AWK 5232 and wireless connection are functioning normally Two testing methods are explained in the following sections Use the first method if you are using only one AWK 5232 device and use t...

Страница 13: ...properly After setting up the testing environment open a DOS window on notebook B At the prompt type ping IP address of notebook A and then press Enter A Reply from IP address response means the communication was successful A Request timed out response means the communication failed In this case recheck the configuration to make sure the connections are correct Function Guiding Map The management ...

Страница 14: ...cation These advanced functions are all optional Application oriented device management functions to set up events traps and reactions via relay warning e mail and SNMP notification These functions are all optional Real time status information to monitor wired wireless network performance advanced services and device management functions Functions to maintain the AWK 5232 and diagnose the network ...

Страница 15: ...d Wireless Settings WLAN Certification Settings for EAP TLS in Redundant Client Client or Slave mode only Advanced Settings Using Virtual LAN Configuring Virtual LAN DHCP Server for AP Client operation mode s AP mode only Packet Filters RSTP Settings for Master or Slave mode only SNMP Agent Storm Protection Link Fault Pass Through for Client Slave mode only Auto Warning Settings System Log Syslog ...

Страница 16: ...n the management VLAN The Moxa AWK 5232 s default IP is 192 168 127 253 Follow the steps below to access the AWK 5232 s web based console management 1 Open your web browser ex Internet Explorer and type the AWK 5232 s IP address in the address field Then press Enter to establish the connection 2 The Web Console Login page will open Enter the password Username is set as admin the default password i...

Страница 17: ...ates the country code The country code represents the AWK 5232 version and which bandwidth it uses We use AWK 5232 US as an example in the following figures The country code of model name on the screen may vary if you are using a different version band AWK 5232 NOTE For security reasons you will need to log back into the AWK 5232 after the 5 minute time out Overview The Overview page summarizes th...

Страница 18: ...e role or application of different AWK 5232 units AWK 5232_ Serial No of this AWK 5232 Device location Setting Description Factory Default Max 31 Characters To specify the location of different AWK 5232 units None Device description Setting Description Factory Default Max 31 Characters Use this space to record more detailed description of AWK 5232 None Device name Setting Description Factory Defau...

Страница 19: ...NS server Setting Description Factory Default IP address of Primary Secondary DNS server The IP address of the DNS Server used by your network After entering the DNS Server s IP address you can input the AWK 5232 s URL e g http ap11 abc com in your browser s address field instead of entering the IP address The Secondary DNS server will be used if the Primary DNS server fails to connect None Time S...

Страница 20: ...t saving time also know as DST or summer time involves advancing clocks usually 1 hour during the summer time to provide an extra hour of daylight in the afternoon Disable When Daylight saving time is enabled the following parameters can be shown The Starts at parameter allows users to enter the date that daylight saving time begins The Stops at parameter allows users to enter the date that daylig...

Страница 21: ...ess connection between a redundant client device and a redundant AP device The redundant structure involves using the AWK 5232 s two RF modules to set up two independent wireless connections between the redundant client and redundant AP devices If either of the two wireless connections fails the other wireless connection will continue transmitting packets between the redundant client and redundant...

Страница 22: ...tion is based on the AP master and Client Slave concept Both sides of the connection must have the same RF type SSID and security settings For single RF mesh networks the conventional setup is to use WDS to establish a static bridge link In this case the APs at both ends of the WDS link must be configured manually with each other s MAC addresses The performance of a single RF bridge will be poor i...

Страница 23: ...ent AP Allow WLAN1 WLAN2 Some applications already have existing Clients in the environment The AWK 5232 not only can carry dual RF clients but also single RF or existing Clients to the Ethernet LAN This function is available in Wireless Redundancy mode s Redundant AP or Wireless Bridge mode s Master page Descriptions of other operation modes can be found in the Basic Wireless Settings section Ena...

Страница 24: ...asic Wireless Setting The following figure shows the Basic Wireless Settings page The parameters and options are described as follows RF type Setting Description Factory Default 2 4 GHz B Only supports the IEEE 802 11b standard B G N Mixed G Only supports the IEEE 802 11g standard B G Mixed Supports IEEE 802 11b g standards but 802 11g may operate at a slower speed if when 802 11b clients are on t...

Страница 25: ...AP mode only Setting Description Factory Default Available channels vary with RF type The AWK 5232 plays the role of wireless AP 6 in B G N Mixed mode Channel Width for any 11N RF type only Setting Description Factory Default 20 MHz Select your channel width If you are not sure which option to use select 20 40MHz Auto 20 MHz 20 40 MHz Channel bonding If 20 40 MHz is set the channel bonding 40 MHz ...

Страница 26: ...ing overview page Please click on Edit to modify WLAN security settings The AWK 5232 provides four standardized wireless security modes Open WEP Wired Equivalent Privacy WPA Wi Fi Protected Access and WPA2 Several types of security models are available in AWK 5232 by selecting Security mode and WPA type Open No authentication no data encryption WEP Static WEP Wired Equivalent Privacy keys must be ...

Страница 27: ...rmally Open or Open System authentication type is often used when WEP data encryption is run with authentication When WEP is enabled as a security mode the length of a key so called WEP seed can be specified as 64 128 bits which is actually a 40 104 bit secret key with a 24 bit initialization vector The AWK 5232 provides 4 entities of WEP key settings that can be selected to use with Key index The...

Страница 28: ...ected Access and WPA2 are significantly improved encryption methods of WEP WPA is a security standard based on 802 11i draft 3 while WPA2 is based on the fully ratified version of 802 11i The initial vector is transmitted encrypted and enhanced with its 48 bits twice as long as WEP The key is regularly changed so that true session is secured Even though AES encryption is only included in the WPA2 ...

Страница 29: ...Factory Default 60 86400 seconds 1 minute to 1 year Specifies the time period of group key renewal 3600 seconds NOTE The value for key renewal instructs the wireless AP how often it should change the encryption keys Usually the security level will be higher if you set this value shorter so that the encryption keys are changed more often Default value is 3600 seconds 6 minutes Longer time periods c...

Страница 30: ...RADIUS server Specifies the delegated RADIUS server for EAP None Primary Secondary RADIUS port Setting Description Factory Default Port number Specifies the port number of the delegated RADIUS server 1812 Primary Secondary RADIUS shared key Setting Description Factory Default Max 31 characters The secret key shared between AP and RADIUS server None Key renewal Setting Description Factory Default 6...

Страница 31: ... certificate status in Current Status if it is available Certificate issued to shows the certificate user Certificate issued by shows the certificate issuer Certificate expiration date indicates when the certificate gets invalid EAP TTLS It is usually much easier to re use existing authentication systems such as a Windows domain or Active Directory LDAP directory or Kerberos realm rather than crea...

Страница 32: ...dentity hiding in TTLS and PEAP TTL Inner Authentication Setting Description Factory Default PAP Password Authentication Protocol is used MS CHAP V2 CHAP Challenge Handshake Authentication Protocol is used MS CHAP Microsoft CHAP is used MS CHAP V2 Microsoft CHAP version 2 is used Anonymous Setting Description Factory Default Max 31 characters A distinct name used for outer authentication None User...

Страница 33: ...None User name Password Setting Description Factory Default User name and password used in inner authentication None Advanced Wireless Settings Additional wireless related parameters are presented in this section to help you set up your wireless network in detail Transmission Rate Setting Description Factory Default Auto The AWK 5232 senses and adjusts the data rate automatically Auto Available ra...

Страница 34: ...less signal coverage by automatically selecting the strength of Tx power Full Full Equivalent to maximum Tx power High 4 dB of full Tx power Medium 8 dB of full Tx power Low 12 dB of full Tx power NOTE Each antenna port s Tx power at Full US model 18 dBm EU model 16 dBm JP model 18 dBm RF type 5 GHz Setting Description Factory Default Auto Specifies wireless signal coverage by automatically select...

Страница 35: ...terference The user must carefully evaluate and measure the transmission power of the entire system to ensure it stays below the regulative limit In addition that RF type 802 11a mode cannot be used if this function is enabled Disable NOTE Make sure the same Transmission distance parameters are set in both AP and Client When this parameter is greater than 500 an optimal algorithm will be enabled t...

Страница 36: ...he corresponding password or key in the Certificate private password field Then click Submit to set the password 2 You can see the password displayed in the Certificate private password field Then click on the Browse button in Select certificate key file and select the certificate file 3 Click Upload Certificate File to import the certificate file If it succeeds you can see the information uploade...

Страница 37: ...lients roam without compromising security VLAN Workgroups and Traffic Management The AP assigns clients to a VLAN based on a Network Name SSID The AP can support up to 9 SSIDs per radio interface with a unique VLAN configurable per SSID The AP matches packets transmitted or received to a network name with the associated VLAN Traffic received by a VLAN is only sent on the wireless interface associa...

Страница 38: ... the AWK Yes WLAN This is a wireless port for the specific SSID This field will refer to the SSID that you have created If more SSIDs have been created new rows will be added Port PVID Setting Description Factory Default VLAN ID ranging from 1 to 4094 Set the port s VLAN ID for devices that connect to the port The port can be a LAN port or WLAN ports 1 VLAN Tagged Setting Description Factory Defau...

Страница 39: ...t IP addresses The AWK 5232 can act as a simplified DHCP server and easily assign IP addresses to your wireless clients by responding to the DHCP requests from the client ends The IP related parameters you set on this page will also be sent to the client You can also assign a static IP address to a specific client by entering its MAC address The AWK 5232 provides a Static DHCP mapping list with up...

Страница 40: ...ctory Default 1 10 days The lease time for which an IP address is assigned The IP address may go expired after the lease time is reached 10 days Packet Filters The AWK 5232 includes various filters for IP based packets going through LAN and WLAN interfaces You can set these filters as a firewall to help enhance network security MAC Filter The AWK 5232 s MAC filter is a policy based filter that can...

Страница 41: ...ange of IP addresses from 192 168 1 1 to 192 168 255 Remember to check the Active check box for each entity to activate the setting Enable Setting Description Factory Default Enable Enables IP protocol filter Disable Disable Disables IP protocol filter Policy Setting Description Factory Default Accept Only the packets fitting the entities on the list can be allowed Drop Drop Any packet fitting the...

Страница 42: ...ivated all packets are denied RSTP Settings for Master or Slave mode only AWK 5232 supports IEEE802 1D Spanning Tree Protocol and IEEE802 1w Rapid STP standards In addition to eliminating unexpected path looping STP RSTP can provide a backup path recovery if a wired wireless path fails accidentally The reliability and availability can increase because this fail over function AWK 5232 s STP RSTP fe...

Страница 43: ...work are recognized as a root the devices will renegotiate to set up a new Spanning Tree topology 20 seconds Enable RSTP Setting Description Factory Default Enable disable Enables or disables the port as a node on the Spanning Tree topology Disable unchecked Port priority Setting Description Factory Default Numerical value selected by user Increase this port s priority as a node on the Spanning Tr...

Страница 44: ... and level that will be used to communicate between the SNMP agent and manager Protocol Version Setting on UI web page Authentication Type Data Encryption Method SNMP V1 V2c V1 V2c Read Community Community string No Use a community string match for authentication V1 V2c Write Read Community Community string No Use a community string match for authentication SNMP V3 No Auth No No Use account with a...

Страница 45: ...in auth type for V1 V2c V3 and V3 only Setting Description Factory Default No Auth Use admin account to access objects No authentication No Auth MD5 Provide authentication based on the HMAC MD5 algorithms 8 character passwords are the minimum requirement for authentication SHA Provides authentication based on HMAC SHA algorithms 8 character passwords are the minimum requirement for authentication ...

Страница 46: ... events Link Fault Pass Through Setting Description Factory Default Enable Enables Link Fault Pass Through Disable Disable Disables Link Fault Pass Through Auto Warning Settings Since industrial grade devices are often located at the endpoints of a system these devices will not always know what is happening elsewhere on the network This means that these devices including wireless APs or clients mu...

Страница 47: ...orted to the AWK 5232 Console authentication failure An incorrect password is entered Firmware upgraded The AWK 5232 s firmware is updated Power events Event is triggered when Power 1 2 transition On Off The AWK 5232 is powered down in PWR1 2 PoE transition On Off The AWK 5232 is powered down in PoE Power 1 2 transition Off On The AWK 5232 is powered via PWR1 2 PoE transition Off On The AWK 5232 i...

Страница 48: ...nter the IP address of the 1st 2nd 3rd Syslog Server None Syslog port Setting Description Factory Default Port destination 1 to 65535 Enter the UDP port of the corresponding Syslog server 514 E mail E mail Event Types Check the box for Active to enable the event items All default values are deactivated unchecked Details for each event item can be found on the System log Event Types table on page 3...

Страница 49: ... page In addition a Send Test Mail button can be used to test whether the Mail server and e mail addresses work well More detailed explanations about these parameters are given after the following figure Mail server SMTP Setting Description Factory Default IP address The IP Address of your email server None User name Password Setting Description Factory Default User name and password used in the S...

Страница 50: ...ent does not occur the relay circuit will remain closed For safety reasons the relay circuit is kept open when the AWK 5232 is not powered Relay Event Types You can check the box for Active to enable the event items All default values are deactivated unchecked Details for each event item can be found in the System log Event Types table on page 3 31 Trap Traps can be used to signal abnormal conditi...

Страница 51: ...it is possible to convert between the two You can set the parameters for SNMP trap receivers through the web page 1st 2nd Trap version Setting Description Factory Default V1 SNMP trap defined in SNMPv1 V1 V2 SNMP trap defined in SNMPv2 1st 2nd Trap server IP name Setting Description Factory Default IP address or host name Enter the IP address or name of the trap server used by your network None ...

Страница 52: ...alues for 802 11 info may not appear with different operation modes For example Current BSSID and RSSI are not available in Redundant AP AP or Master modes It is helpful to use the continuously updated information option on this page such as RSSI to monitor the signal strength of the AWK 5232 in Redundant Client Client or Slave modes Associated Client List for Redundant AP AP or Master mode only A...

Страница 53: ...ved IP assignments You can click the Refresh button to refresh the list You can press Select all button to select all content in the list for further editing System Log Triggered events are recorded in System Log You can export the log contents to an available viewer by clicking Export Log You can use the Clear Log button to clear the log contents and the Refresh button to refresh the log ...

Страница 54: ...nds if the Auto refresh box is checked If an event is triggered it will be noted on this list System administrators can click Acknowledge Event when he has acknowledged the event and addressed it DI and Power Status The status of power inputs and digital inputs is shown on this web page The status will refresh every 5 seconds if the Auto refresh box is checked ...

Страница 55: ...ty we recommend you only allow access to the two secured consoles HTTPS and SSH Ping Ping helps to diagnose the integrity of wired or wireless networks By inputting a node s IP address in the Destination field you can use the ping command to make sure it exists and whether or not the access path is available If the node and access path are available you will see that all packets were successfully ...

Страница 56: ...r source is stable when you upgrade your firmware An unexpected power breakup may damage your AWK 5232 Config Import Export You can back up or restore the AWK 5232 s configuration with Config Import Export In the Config Import section click Browse to specify the configuration file and click Config Import button to begin importing the configuration In the Config Export section click the Config Expo...

Страница 57: ...ctory Default Always enable The AWK 5232 s Reset button works normally Always enable Disable after 60 sec The AWK 5232 s Reset button will become invalid 60 seconds after the AWK 5232 completes booting Save Configuration The following figure shows how the AWK 5232 stores the setting changes into volatile and non volatile memory All data stored in volatile memory will disappear when the AWK 5232 is...

Страница 58: ...a blinking string in the upper right corner of the screen After making all your changes click the Restart function in the left menu box One of two different screens will appear If you made changes recently but did not save you will be given two options Clicking the Restart button here will reboot the AWK 5232 directly and all setting changes will be ignored Clicking the Save and Restart button wil...

Страница 59: ...2 Web Console Configuration 3 45 Logout Logout helps users disconnect the current HTTP or HTTPS session and go to the Login page For security reasons we recommend you logout before quitting the console manager ...

Страница 60: ...4 4 Software Installation Configuration The following topics are covered in this chapter Overview AWK Search Utility Installing AWK Search Utility Configuring AWK Search Utility ...

Страница 61: ...Quick Installation Guide AWK Search Utility Installing AWK Search Utility 1 Click the INSTALL UTILITY button in the AWK Installation CD auto run window to install AWK Search Utility Once the program starts running click Yes to proceed 2 Click Next when the Welcome screen opens to proceed with the installation 3 Click Next to install program files to the default directory or click Browse to select ...

Страница 62: ...AWK 5232 Software Installation Configuration 4 3 5 Click Next to select additional tasks 6 Click Next to proceed with the installation The installer then displays a summary of the installation options ...

Страница 63: ...e same LAN as your computer After locating an AWK 5232 you will be able to change its IP address Since the Broadcast Search function searches by TCP packet and not IP address it doesn t matter if the AWK 5232 is configured as an AP or Client In either case APs and Clients connected to the LAN will be located regardless of whether or not they are part of the same subnet as the host 1 Start the AWK ...

Страница 64: ...uration 4 5 2 Open the AWK Search Utility and then click the Search icon The Searching window indicates the progress of the search 3 When the search is complete all AWKs that were located will be displayed in the AWK Search Utility window ...

Страница 65: ... device to beep Make sure your AWK is unlocked before using the search utility s icons setting The AWK will unlock automatically if the password is set to the default Otherwise you must enter the new password manually Go to Tools AWK login Options to manage and unlock additional AWKs ...

Страница 66: ...earch for the AWK again you will find that the AWK will unlock automatically ATTENTION For security purposes we suggest you can change the AWK search utility login password instead of using default To modify the configuration of the highlighted AWK click on the Web icon to open the web console This will take you to the web console where you can make all configuration changes Refer to Chapter 3 Usi...

Страница 67: ...tallation Configuration 4 8 Click on Telnet if you would like to use telnet to configure your AWKs Click Assign IP to change the IP setting The three advanced options Search Connection and Miscellaneous are explained below ...

Страница 68: ...et the waiting time for the Default Login Locate Assign IP Upload Firmware and Unlock to complete Upgrade timeout secs Use this option to set the waiting time for the connection to disconnect while the firmware is upgrading Use this option to set the waiting time for the Firmware to write to flash Misc Search on start Checkmark this box if you would like the search function to start searching for ...

Страница 69: ...hod which requires using a short serial cable to connect the AWK 5232 to a PC s COM port can be used if you do not know the AWK 5232 s IP address The other consoles can be used to access the AWK 5232 over an Ethernet LAN or over the Internet The following topics are covered in this chapter RS 232 Console Configuration 115200 None 8 1 VT100 Configuration by Telnet and SSH Consoles Configuration by ...

Страница 70: ...r the LAN ATTENTION Do not use the RS 232 console manager when the AWK 5232 is powered at reversed voltage ex 48VDC even though reverse voltage protection is supported If you need to connect the RS 232 console at reversed voltage Moxa s TCC 82 isolator is your best solution NOTE We recommend using Moxa PComm Lite Terminal Emulator which can be downloaded free of charge from Moxa s website Before r...

Страница 71: ...232 console with the login name default admin and password default root if no new password is set 6 The AWK 5232 s device information and Main Menu will be displayed Please follow the description on screen and select the administration option you wish to perform NOTE To modify the appearance of the PComm Terminal Emulator window select Edit Font and then choose the desired formatting options ...

Страница 72: ...twork settings of your PC host and then change the IP address to 192 168 127 xxx and subnet mask to 255 255 255 0 Follow the steps below to access the console utility via Telnet or SSH client 1 From Windows Desktop run Start Run and then use Telnet to access the AWK 5232 s IP address from the Windows Run window You may also issue the telnet command from the MS DOS prompt When using SSH client ex P...

Страница 73: ... HTTPS SSL You can see the protocol in URL is https Then you can use the menu tree on the left side of the window to open the function pages to access each of AWK 5232 s functions Disabling Telnet and Browser Access If you are connecting the AWK 5232 to a public network but do not intend to use its management functions over the network then we suggest disabling both Telnet Console and Web Configur...

Страница 74: ...d technologies The information in this chapter can help you administer your AWK 5232s and plan your industrial wireless network better The following topics are covered in this chapter Beacon DTIM Fragment RTS Threshold STP and RSTP The STP RSTP Concept Differences between RSTP and STP ...

Страница 75: ...etting determines how large a packet can be before the Access Point coordinates transmission and reception to ensure efficient communication This value should remain at its default setting of 2 346 When you encounter inconsistent data flow only minor modifications are recommended STP and RSTP The STP RSTP Concept Spanning Tree Protocol STP was designed to help reduce link failures in a network and...

Страница 76: ...n it decides to enable a link to a neighboring bridge Adjacent bridges connected via point to point links will be able to enable a link without waiting to ensure that all other bridges in the network have had time to react to the change The main benefit of RSTP is that the configuration decision is made locally rather than network wide allowing RSTP to carry out automatic configuration and restore...

Страница 77: ...You can also learn how to contact Moxa for technical support The following topics are covered in this chapter About This User s Manual DoC Declaration of Conformity Federal Communication Commission Interference Statement R TTE Compliance Statement Firmware Recovery Technical Support Contact Information ...

Страница 78: ...l 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 However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television ...

Страница 79: ...ned with the utmost care for the safety of those who install and use it However special attention must be paid to the dangers of electric shock and static electricity when working with electrical equipment All guidelines of this and of the computer manufacturer must therefore be allowed at all times to ensure the safe use of the equipment EU Countries Intended for Use The ETSI version of this devi...

Страница 80: ...TFTP server and press y to write the settings into flash memory AWK 5232 restarts and the Press Ctrl C to enter Firmware Recovery Process message will reappear Press Ctrl C to enter the menu and select 1 to start the firmware upgrade process Select 0 in the sub menu to load the firmware image via LAN and then enter the file name of the firmware to start the firmware recovery ...

Страница 81: ... of our products Moxa Internet Services has been set up to provide technical support driver updates product information certification status installation guide and user s manual updates The following services are provided E mail for technical support support moxa com Worldwide support usa moxa com The Americas World Wide Web WWW Site for product information http www moxa com ...

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