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PT-7728 User’s Manual

Featured Functions

3-19

Turbo Ring with even number of switches

If the number of Ethernet switches in the
Turbo Ring is 2N (an even number), the
backup segment is one of the two segments
connected to the (N+1)st switch (i.e., the unit
directly opposite the master).

Turbo Ring with odd number switches

If the number of Ethernet switches in the
Turbo Ring is 2N+1 (an odd number), the
backup segment is the (N+1)st segment
counting counterclockwise.

For the example shown here, N=1, so that
N+1=2.

Master

Segment N+1

Содержание PT-7728 Series

Страница 1: ...PT 7728 User s Manual www moxa com product First Edition February 2008 Moxa Inc Tel 886 2 8919 1230 Fax 886 2 8919 1231 Web www moxa com Moxa Technical Support Worldwide support moxa com The Americas...

Страница 2: ...ent on the part of Moxa Moxa provides this document as is without warranty of any kind either expressed or implied including but not limited to its particular purpose Moxa reserves the right to make i...

Страница 3: ...Trunking 3 12 The Port Trunking Concept 3 12 Configuring Port Trunking 3 13 Configuring SNMP 3 14 SNMP Read Write Settings 3 15 Trap Settings 3 16 Private MIB information 3 17 Using Communication Red...

Страница 4: ...ype 3 56 Email Setup 3 57 Configuring Relay Warning 3 58 Event Setup 3 59 Warning List 3 60 Using Line Swap Fast Recovery 3 60 Configuring Line Swap Fast Recovery 3 60 Using Set Device IP 3 60 Configu...

Страница 5: ...rTrans PT 7728 a managed redundant Gigabit Ethernet switch designed especially for connecting Ethernet enabled devices for industrial field applications The following topics are covered in this chapte...

Страница 6: ...representative for assistance y 1 PowerTrans PT 7728 y Hardware installation guide y CD ROM with user s manual and SNMP MIB file y Warranty statement y RJ45 to DB9 console port cable y Protective cap...

Страница 7: ...sole If you do not know the PT 7728 s IP address you can open the serial console by connecting the PT 7728 to a PC s COM port with a short serial cable You can open the Telnet or web console over an E...

Страница 8: ...onfiguration NOTE We recommend using PComm Terminal Emulator when opening the serial console This software can be downloaded free of charge from the Moxa website Before running PComm Terminal Emulator...

Страница 9: ...t that is being used for the console connection Set the other fields as follows 115200 for Baud Rate 8 for Data Bits None for Parity and 1 for Stop Bits 4 On the Terminal tab select VT100 for Terminal...

Страница 10: ...PT 7728 s serial console Key Function Up down right left arrow keys Tab Move the onscreen cursor Enter Display and select options Space Toggle options Esc Previous menu Configuration by Telnet Console...

Страница 11: ...s follows 1 Click Start Run from the Windows Start menu Telnet to the PT 7728 s IP address from the Windows Run window You may also issue the Telnet command from a DOS prompt 2 In the terminal window...

Страница 12: ...inal Preferences window should appear Make sure that VT100 Arrows is checked 7 Use the following keys on your keyboard to navigate the PT 7728 s Telnet console Key Function Up down right left arrow ke...

Страница 13: ...e of PT 7728 s Ethernet ports to your Ethernet LAN or directly to your PC s Ethernet port You may use either a straight through or cross over Ethernet cable NOTE The PT 7728 s default IP address is 19...

Страница 14: ...t pages of configuration options Disabling Telnet and Browser Access If you are connecting the PT 7728 to a public network but do not intend to manage it over the network we suggest disabling both the...

Страница 15: ...most user friendly way to configure PT 7728 In this chapter we use the web console interface to introduce the functions There are only a few differences between the web console serial console and Teln...

Страница 16: ...is useful for differentiating between the roles or applications of different units Example Factory Switch 1 Managed Redundant Switch Serial no of this switch Switch Location Setting Description Facto...

Страница 17: ...gned you will be required to enter the password when you open the serial console Telnet console or Web console Account Setting Description Factory Default Admin This account can modify the PT 7728 s c...

Страница 18: ...nly y Grant access to any host on a specific subnetwork For example enter IP address 192 168 1 0 with netmask 255 255 255 0 to allow access to all IPs on the subnet defined by this IP address subnet m...

Страница 19: ...ss Enabled ATTENTION If a connected device or sub network is wreaking havoc on the rest of the network the Disable option under Advanced Settings Port gives the administrator a quick way to shut off a...

Страница 20: ...port s Speed is set to Auto The final result will be determined by the Auto process between the PT 7728 and connected devices Setting Description Factory Default Enable This enables flow control for...

Страница 21: ...type of network to which the PT 7728 is connected e g 255 255 0 0 for a Class B network or 255 255 255 0 for a Class C network 255 255 255 0 Default Gateway Setting Description Factory Default IP addr...

Страница 22: ...here is no NTP server on the LAN or Internet connection Current Time Setting Description Factory Default User specified time This allows configuration of the local time in local 24 hour format 00h 00m...

Страница 23: ...automatically correct the current time Make sure to set the time zone before setting the time Time Server IP Name Setting Description Factory Default IP address or name of time server This is the IP o...

Страница 24: ...the PT 7728 s configuration file on the TFTP server None Firmware Files Path and Name Setting Description Factory Default Max 40 characters This specifies the path and file name of the PT 7728 s firm...

Страница 25: ...pgrade Firmware To import a new firmware file onto the PT 7728 click Browse to select the firmware file that is saved on your computer The upgrade procedure will proceed automatically after clicking I...

Страница 26: ...ince the bandwidth of a link can be doubled tripled or quadrupled y Redundancy if one link is broken the remaining trunked ports share the traffic within this trunk group y Load sharing MAC client tra...

Страница 27: ...tocol Static LACP This selects LACP IEEE 802 3ad Link Aggregation Control Protocol Static Available Ports Member Ports Setting Description Factory Default Member available ports This lists the ports i...

Страница 28: ...can also enable data encryption to enhance data security Supported SNMP security modes and levels are shown in the following table Select the security mode and level that will be used to communicate b...

Страница 29: ...ing to authenticate the SNMP agent for read only access The SNMP agent will access all objects with read only permissions using this community string Public V1 V2c Write Read Community Setting Descrip...

Страница 30: ...cifies that data will not be encrypted No User Auth Type for SNMP V1 V2c V3 and V3 only Setting Description Factory Default No Auth This allows the admin account and user account to access objects wit...

Страница 31: ...dundant loops in the network to provide a backup data transmission route in the event that a cable is inadvertently disconnected or damaged This is a particularly important feature for industrial appl...

Страница 32: ...omatically readjusts the ring so that the part of the network that was disconnected can reestablish contact with the rest of the network Initial setup for Turbo Ring or Turbo Ring V2 1 For each switch...

Страница 33: ...the backup segment is one of the two segments connected to the N 1 st switch i e the unit directly opposite the master Turbo Ring with odd number switches If the number of Ethernet switches in the Tur...

Страница 34: ...onvenient to connect all devices in the system in a single redundant ring since some devices could be located in a remote area For these systems Ring Coupling can be used to group devices into smaller...

Страница 35: ...t the ring coupling settings for a Turbo Ring V2 are different from a Turbo Ring For Turbo Ring V2 ring coupling is enabled by configuring the Coupling Port Primary on Switch B and the Coupling Port B...

Страница 36: ...rating connection and the backup path is a back up connection that is activated in the event that the primary path connection fails Dual Homing for Turbo Ring V2 Primary Path Ring A Master Master Ring...

Страница 37: ...ontrol Port The Ports Status indicators show Forwarding for normal transmission Blocking if the port is part of a backup path that is currently blocked and Link down if there is no connection Settings...

Страница 38: ...ption Factory Default Coupling Port This specifies which port on the PT 7728 will be used as the coupling port None Coupling Control Port Setting Description Factory Default Coupling Control Port This...

Страница 39: ...e which segment serves as the backup path Ring 1 2 1st Ring Port Status Ring 1 2 2nd Ring Port Status The Ports Status indicators show Forwarding for normal transmission Blocking if this port is conne...

Страница 40: ...None Enable Ring Coupling Setting Description Factory Default Enable This specifies that this PT 7728 will be a ring coupler Disable This specifies that this PT 7728 is not a ring coupler Not checked...

Страница 41: ...STP 802 1D and RSTP 802 1w can operate on different ports of the same PT 7728 This feature is particularly helpful when PT 7728 ports connect to older equipment such as legacy switches You get essent...

Страница 42: ...tected As shown in next figure the STP process reconfigures the network so that traffic from LAN segment 2 flows through Bridge B STP will determine which path between each bridged segment is most eff...

Страница 43: ...rform calculations During this stage each bridge on the network transmits BPDUs The following items will then be calculated y The bridge that will act as the Root Bridge The Root Bridge is the central...

Страница 44: ...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...

Страница 45: ...18 18 This means that both VLANs are now subdivided VLAN 1 on Switch units A and B cannot communicate with VLAN 1 on Switch C and VLAN 2 on Switch units A and C cannot communicate with VLAN 2 on Swit...

Страница 46: ...STP mode It indicates whether or not this PT 7728 is the Root of the Spanning Tree the root is determined automatically At the bottom of this page the user can configure the Settings for the selected...

Страница 47: ...self as a root When two or more devices on the network are recognized as a root the devices will renegotiate to set up a new Spanning Tree topology 20 Enable STP per Port Setting Description Factory D...

Страница 48: ...o get the upper limit for Max Age Step 3 Assign a value to Forwarding Delay that satisfies the conditions in Eq 3 and Eq 4 Using Traffic Prioritization The PT 7728 s traffic prioritization capability...

Страница 49: ...ediately follows the destination MAC address and Source MAC address The IEEE Std 802 1D 1998 Edition priority marking scheme assigns an IEEE 802 1p priority level between 0 and 7 to each frame This de...

Страница 50: ...ith it If it does not then it is given a default 802 1p tag which is usually 0 Alternatively the packet may be marked with a new 802 1p value which will result in all knowledge of the old 802 1p tag b...

Страница 51: ...Description Factory Default Weight Fair PT 7728 has 4 priority queues In the weight fair scheme an 8 4 2 1 weighting is applied to the four priorities This approach prevents the lower priority frames...

Страница 52: ...r disables the PT 7728 to inspect the 802 1p COS tag in the MAC frame to determine the priority of each frame Enable CoS Mapping Setting Description Factory Low Normal Medium High This maps different...

Страница 53: ...is a group of devices that can be located anywhere on a network but which communicate as if they are on the same physical segment With VLANs you can segment your network without being restricted by p...

Страница 54: ...gardless of whether or not they need it VLANs increase the efficiency of your network because each VLAN can be set up to contain only those devices that need to communicate with each other VLANs and t...

Страница 55: ...on it is known as a tagged frame To carry multiple VLANs across a single physical backbone trunk link each packet must be tagged with a VLAN identifier so that the switches can identify which packets...

Страница 56: ...s a single untagged device and assigns it to VLAN 4 it should be configured as Access Port with PVID 4 After proper configuration y Packets from Device A will travel through Trunk Port 3 with tagged V...

Страница 57: ...gle devices without tags Trunk Select Trunk port type to connect another 802 1Q VLAN aware switch or another LAN that combines tagged and or untagged devices and or other switches hubs Access ATTENTIO...

Страница 58: ...rformance of networks that carry multicast traffic This section explains multicasts multicast filtering and how multicast filtering can be implemented on your PT 7728 The Concept of Multicast Filterin...

Страница 59: ...Ethernet use multicast These industrial Ethernet protocols use publisher subscriber communications models by multicasting packets that could flood a network with heavy traffic IGMP Snooping is used t...

Страница 60: ...up Management Protocol Snooping GMRP GARP Multicast Registration Protocol and adding a static multicast MAC manually to filter multicast traffic automatically IGMP Internet Group Management Protocol S...

Страница 61: ...gistration Protocol The PT 7728 supports IEEE 802 1D 1998 GMRP GARP Multicast Registration Protocol which differs from IGMP Internet Group Management Protocol GMRP is a MAC based multicast management...

Страница 62: ...Factory Default Enable Disable This enables or disables the IGMP Snooping function per VLAN Enabled if IGMP Snooping Enabled Globally Querier Setting Description Factory Default Enable Disable This e...

Страница 63: ...st MAC If required the PT 7728 also supports adding multicast groups manually Add New Static Multicast Address to the List Setting Description Factory Default MAC Address Input the multicast MAC addre...

Страница 64: ...MRP groups that were detected Setting Description Fixed Ports This multicast address is defined by static multicast Learned Ports This multicast address is learned by GMRP Using Bandwidth Management I...

Страница 65: ...st Storm Protection for unknown broadcast packet globally Enable Enable Disable This enables or disables Broadcast Storm Protection for unknown multicast packets globally Disable Traffic Rate Limiting...

Страница 66: ...responds to the requests from the switch Authentication server The server that performs the actual authentication of the supplicant Authenticator Edge switch or wireless access point that acts as a p...

Страница 67: ...chanism is EAP MD5 Local Radius Local Select this option to make using an external RADIUS server as the authentication database the first priority The authentication mechanism is EAP MD5 The first pri...

Страница 68: ...ed 3600 802 1X Setting Description Factory Default Enable Disable Click the checkbox under the 802 1X column to enable IEEE 802 1X for one or more ports All end stations must enter usernames and passw...

Страница 69: ...l Ethernet 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 an industrial Ethernet switch that conne...

Страница 70: ...8 s Event Types and Email Setup you can use the Test Email function to see if your e mail addresses and mail server address have been properly configured Event Type Event Types can be divided into two...

Страница 71: ...is surpassed during that time period NOTE The Traffic Overload Traffic Threshold and Traffic Duration sec Port Event items are related If you Enable the Traffic Overload event then be sure to enter a...

Страница 72: ...st Email After finishing with the email settings you should first click Activate to activate those settings and then press the Send Test Email button to verify that the settings are correct NOTE Auto...

Страница 73: ...rt Events Warning e mail is sent when Link ON The port is connected to another device Link OFF The port is disconnected e g the cable is pulled out or the opposing device shuts down Traffic Overload T...

Страница 74: ...n disabled access either the Console utility s Line Swap recovery page or the Web Browser interface s Line Swap fast recovery page as shown below Configuring Line Swap Fast Recovery Enable Line Swap F...

Страница 75: ...me idea of what to look for You also need to decide which of PT 7728 s ports your Ethernet enabled devices will be connected to You will need to set up each of these ports separately as described in t...

Страница 76: ...ither the Console utility or Web Browser interface You will need to configure three settings Monitored Port Select the port number of the port whose network activity will be monitored Mirror Port Sele...

Страница 77: ...t selection bar Monitor by System allows the user to view a graph that shows the combined data transmission activity of all of PT 7728 s 18 ports Click one of the four options Total Packets TX Packets...

Страница 78: ...ves up or down so that the user can view the change in the rate of packet transmission The blue colored bar shows Uni cast packets the red colored bar shows Multi cast packets and the orange colored b...

Страница 79: ...based on how the current date is set in the Basic Setting page Time The time is updated based on how the current time is set in the Basic Setting page System Startup Time The system startup time rela...

Страница 80: ...IP Address Enter the IP address of 1st Syslog server used by your network None Port Destination 1 to 65535 Enter the UDP port of 1st Syslog server 514 Syslog Server 2 Setting Description Factory Defau...

Страница 81: ...Log table and will then be sent to the specified Syslog Server y Cold start y Warm start y Configuration change activated y Power 1 2 transition Off On Power 1 2 transition On Off y Authentication fa...

Страница 82: ...3 MIB II The standard MIB groups that the PT 7728 supports are as follows MIB II 1 System Group sysORTable MIB II 2 Interfaces Group ifTable MIB II 4 IP Group ipAddrTable ipNetToMediaTable IpGroup IpB...

Страница 83: ...ble dot1dStp dot1dStpPortTable dot1dTp dot1dTpFdbTable dot1dTpPortTable dot1dTpHCPortTable dot1dTpPortOverflowTable pBridgeMIB dot1dExtBase dot1dPriority dot1dGarp qBridgeMIB dot1qBase dot1qTp dot1qFd...

Страница 84: ...PT 7728 utility CD ROM Public Traps y Cold Start y Link Up y Link Down y Authentication Failure y dot1dBridge New Root y dot1dBridge Topology Changed Private Traps y Configuration Changed y Power On...

Страница 85: ...3ad for Port Trunk with LACP Flow control IEEE 802 3x flow control back pressure flow control Protocols IGMP V1 V2 V3 device GMRP GVRP SNMP V1 V2c V3 DHCP Server Client DHCP Option 82 BootP TFTP SNTP...

Страница 86: ...x TX 4 dBm 3 dBm 1 dBm 5 dBm Min TX 9 5 dBm 9 5 dBm 4 dBm 0 dBm RX Sensitivity 18 dBm 20 dBm 24 dBm 24 dBm Link Budget 8 5 dB 10 5 dB 20 dB 24 dB Typical Distance 550 ma 275 mb 1100 mc 550 md 10 kme 4...

Страница 87: ...tion Present Mechanical Casing IP30 protection Dimensions W x H x D 440 x 44 x 325 mm 17 32 x 1 73 x 12 80 in Installation 19 inch rack mounting Environmental Operating Temp 40 to 85 C 40 to 185 F Col...

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