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About the SNMP DSU

1-4

7610-A2-GB20-00

November 1996

Alarm Indication. Activates front panel LEDs and provides the capability of
attaching an ASCII terminal or printer to display/print alarm messages.

Diagnostics. Provides the capability to diagnose device and network
problems and perform tests, including digital loopbacks, pattern tests, and
self-test.

Device and Test Monitoring. Provides the capability of tracking and
evaluating the unit’s operation, including health and status, and error-rate
monitoring.

Two Customer-Specified Configuration Storage Areas. Allows quick
access to alternate sets of configuration options.

Security. Provides multiple levels of security, which prevents unauthorized
access to the DSU.

SNMP Management Capabilities

The DSU supports SNMP Version 1, and has the capability of being managed by
any industry-standard SNMP manager and accessed using SNMP protocol by
external SNMP managers.

MIB Support

The following MIBs are supported:

MIB II (RFC 1213 and RFC 1573) – Defines the general objects for use with
a network management protocol in TCP/IP internets and provides general
information about the DSU. MIB II is backward-compatible with MIB I.

RS-232-Like MIB (RFC 1659) – Defines objects for managing RS-232-type
interfaces (e.g., V.35, RS-422, RS-423, etc.) and supports synchronous data
ports and management communication ports on the DSU.

Enterprise MIB – Supports configuration, status, statistics, and tests on the
DDS network interface.

Supported Link-Layer Protocols

The DSU supports two link-layer protocols for connection to an external SNMP
manager or network device:

Point-to-Point Protocol (PPP)

Serial Line Internet Protocol (SLIP)

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Содержание 7610

Страница 1: ...E CHANGE Please note that the area code for Paradyne Corporation in Largo Florida has changed from 813 to 727 For any Paradyne telephone number that appears in this manual with an 813 area code dial 727 instead ...

Страница 2: ...MODEL 7610 SNMP DSU USER S GUIDE Document No 7610 A2 GB20 00 November 1996 ...

Страница 3: ...es the right to revise this publication and to make changes from time to time in the contents hereof without obligation of Paradyne Corporation to notify any person of such revision or changes Changes and enhancements to the product and to the information herein will be documented and issued as a new release to this manual Trademarks All products and services mentioned herein are the trademarks se...

Страница 4: ...ce Types 1 2 Rear Panel Interface Connections 1 2 Front Panel LED Status Indicators 1 3 SNMP DSU Features 1 3 SNMP Management Capabilities 1 4 MIB Support 1 4 Supported Link Layer Protocols 1 4 2 User Interface Screens User Interface Access 2 1 Main Menu 2 1 Screen Format Types 2 2 What Affects Screen Displays 2 3 Screen Work Areas 2 3 Navigating the Screens 2 4 Keyboard Keys 2 4 Screen Function K...

Страница 5: ...all Setup 3 6 Call Directories Screen 3 6 Call Setup Screen 3 8 4 Security Security Overview 4 1 Creating a Login 4 2 Deleting a Login 4 3 ATI Access 4 4 Effective Access Level 4 4 Controlling SNMP Access 4 6 Assigning SNMP Community Names and Access Levels 4 6 Limiting SNMP Access through the IP Addresses of the Managers 4 6 5 IP Addressing Selecting an IP Addressing Scheme 5 1 IP Addressing Sche...

Страница 6: ...etwork Tests 7 2 CSU or External Network Loopback 7 3 DSU or Internal Network Loopback 7 3 Send V 54 Up Down Sequences 7 3 511 Test Pattern for the Network 7 4 Data Port Tests 7 4 Local Loopback 7 4 511 Test Pattern for the DTE 7 4 Lamp Test 7 4 Ending an Active Test 7 5 Test Status Messages 7 5 Loopbacks 7 6 Device Reset 7 7 8 Messages and Troubleshooting Messages and Troubleshooting 8 1 Alarm Me...

Страница 7: ...ation Options Menu A 22 Communication Protocol Options A 22 General SNMP Management Options A 24 SNMP NMS Security Options A 25 SNMP Traps Options A 27 ASCII Characters A 29 B Worksheets Overview B 1 Configuration Worksheets B 1 C MIB Descriptions MIB Description Overview C 1 MIB II RFC 1213 and RFC 1573 C 1 RS 232 Like MIB RFC 1659 C 2 Enterprise MIB Objects C 2 System Group C 3 RS 232 Like MIB R...

Страница 8: ...nts Cabling Overview E 1 Terminal Port EIA 232 Connector E 2 Management Port EIA 232 Connector E 2 V 35 User Data Port Connector E 3 Standard EIA 232 D Crossover Cable E 4 LAN Adapter Converter and Cable E 5 Modular RJ48S DDS Network Interface Cable E 5 Glossary Index ...

Страница 9: ... interface and navigating the screens Chapter 3 Start Up Provides procedures for setting up the user interface device information call setup and DSU configuration steps Chapter 4 Security Presents procedures for creating a login setting the effective access levels and controlling SNMP access Chapter 5 IP Addressing Provides details regarding IP addresses with examples Chapter 6 Monitoring the DSU ...

Страница 10: ...the DSU Appendix D Standards Compliance for SNMP Traps Contains SNMP trap compliance details Appendix E Cables and Pin Assignments Contains connector and interface details Glossary Defines acronyms and terms used in this document Index Lists key terms acronyms concepts and sections in alphabetical order Product Related Documents Document Number Document Title 7610 A2 GN10 Model 7610 SNMP DSU Start...

Страница 11: ...ties include Management connectivity SNMP NMS Enterprise specific MIBs Diagnostic functions Pattern tests Loopback tests Device Tests Power up self test Lamp test Typical DSU Configuration The following illustration shows a typical LAN WAN interconnection application for the DSU The routers connected to the DSU at each location provide the LAN interconnection Network 496 15084 SNMP DSU SNMP DSU Ro...

Страница 12: ...ion Provides the capability to access the DSU via an SNMP management system connected to the Management port or remotely through the in band management channel IMC connection Refer to IP Addressing Chapter 5 Front panel LED status indicators Refer to Monitoring the DSU Chapter 6 Rear Panel Interface Connections D T E TERMINAL MANAGEMENT NETWORK POWER Network Router LAN Adapter or Modem ASCII Termi...

Страница 13: ...ble interface for configuring and managing the DSU locally or remotely by Telnet session or External Modem Local Management Provides local management via an Async terminal connection through the Terminal port NMS connection through the Management port Remote Management Provides remote management Out of band using an external modem through the Terminal port or Management port Via Telnet through the...

Страница 14: ...gement Capabilities The DSU supports SNMP Version 1 and has the capability of being managed by any industry standard SNMP manager and accessed using SNMP protocol by external SNMP managers MIB Support The following MIBs are supported MIB II RFC 1213 and RFC 1573 Defines the general objects for use with a network management protocol in TCP IP internets and provides general information about the DSU...

Страница 15: ... Telnet session Main Menu Entry to all of the DSU s tasks begins at the Main Menu screen which has four menus or branches Select To Status View diagnostic tests network status of interfaces statistics LEDs and DSU identity information Test Select and cancel tests for the DSU s interfaces Configuration Display and edit the configuration options Control Control the user interface for call setup devi...

Страница 16: ...l SNMP Management SNMP NMS Security SNMP Traps Control Call Setup Call Directories Device Name Administer Logins Reset Device MAIN MENU Status Test Configuration Control 496 14999 01 Screen Format Types Three types of screen formats are available on the ATI Use the screen format To Menu selection Display a list of available functions for user selection Input Add or change information on a screen I...

Страница 17: ...functions available below the dotted line based upon screen selection and access level Refer to the Switching Between Screen Work Areas section ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ...

Страница 18: ...ition to the left Ctrl k Select the next valid value for the field Spacebar Delete character that the cursor is on Delete Del Move cursor up one field within a column on the same screen Up Arrow or Ctrl u Move cursor down one field within a column on the same screen Down Arrow or Ctrl d Move cursor one character to the right if in edit mode Right Arrow or Ctrl f Move cursor one character to the le...

Страница 19: ...ield will appear Continue pressing the spacebar to scroll through other valid values Screen Function Keys All screen function keys located below the dotted line operate the same way upper or lowercase throughout the screens For the screen function Select And press Return to MainMenu M or m Return to the Main Menu screen Exit E or e Terminate the async terminal session New N or n Enter new data Mod...

Страница 20: ...the last line as shown below 2 Select either the function s designated underlined character or press the tab key until you reach the desired function key Example To leave the current screen enter e or E Exit 3 Press Return The function is performed 4 To return to the screen area above the dotted line press Ctrl a again main configuration edit user mgmt Device Name Model 7610 MANAGEMENT PORT OPTION...

Страница 21: ...ttings refer to Terminal Port Options Table A 4 Initiating the ATI You can communicate with the ATI using one of the following methods Direct connection through the Terminal port Dialing in through an external modem to the Terminal port Telnet session through the Management port locally or via an external modem Telnet session through the In band Management Channel IMC NOTE Only one async user inte...

Страница 22: ...y printable ASCII characters are valid entries for all the Device Name screen inputs Refer to the ASCII Characters section in Appendix A The Device Name field is alphanumeric and provides for an input of 20 characters The Device Name entry appears on all ATI screens The input on this screen is displayed on the Identity screen Refer to the Identity Information section System Fields The three System...

Страница 23: ...he left or right arrow To access the Identity screen follow this menu selection sequence Main Menu Status Identity main status identity Device Name NE815378 Model 7610 IDENTITY System Name lllQJ98 001 System Location Bldg A412 2nd Floor Left cabinet System Contact Joe Smith 800 555 5555 pager 888 555 5555 Serial Number 1234567 Model Number 7610 A1 201 Software Revision 01 00 00 Hardware Revision 2...

Страница 24: ...ffers four sets of configuration option settings located in the following areas The first three sets match the Default Factory Configuration options set until modified and saved by the user If the factory default settings do not support your network s configuration customize the configuration options for your application Configuration Option Area Configuration Option Set Current Configuration The ...

Страница 25: ...guration From screen reads Access Level is n Configuration is read only The Save prompt will not appear on any screens Refer to Security Chapter 4 Saving Configuration Options When changes are made to the configuration options the changes must be saved to take effect The Save key and Save Configuration To screen appear when the user has an effective access level of 1 All other effective access lev...

Страница 26: ...en entries the phone numbers need to be entered on the Call Directories screen Call Directories Screen Use the Call Directories screen to enter or change the phone numbers used to H Send out an ASCII alarm message to an ASCII terminal or printer H Send out an SNMP trap message H Connect to an NMS for dial in management To access the Call Directories screen follow this menu selection sequence Main ...

Страница 27: ...ect Save and press Return Table 3 1 Call Directory Phone Number Entries Characters Use B Blind dialing do not wait for dial tone P Pulse dialing unless preceded by a B T Tone dialing unless preceded by a B W Wait for dial tone before dialing comma Two second pause do not use in dial string space Readability character ignored during automatic dial out hyphen Readability character ignored during aut...

Страница 28: ...ll Directories screen To access the Call Setup screen follow this menu selection sequence Main Menu Control Call Setup main control setup Device Name Model 7610 CALL SETUP Directory Primary Phone Number xxxxxxx Dial Disconnect Ctrl a to access these functions ESC for previous menu MainMenu Exit Select Primary Alternate Î ÎÎ After completing call setup the Management port can be used to send out AS...

Страница 29: ...e Management port or the IMC Limit the access Port Access Level option of 1 2 or 3 for the Terminal port Session Access Level option of 1 2 or 3 for the Telnet Session Disable the access Telnet Session option Management Port Use option In Band Management Channel Rate bps option for the IMC Dial In Access option for an External Device Refer to Effective Access Levels Table 4 1 SNMP security is hand...

Страница 30: ...he login by entering the following fields For valid entries in the first two fields refer to the ASCII Characters section of Appendix A On the Administer Logins screen for the Enter Login ID 1 to 10 ASCII printable characters Password 1 to 10 ASCII printable characters Access Level Level 1 Level 2 or Level 3 NOTE Assign at least one Level 1 Access Level Full access is necessary to make configurati...

Страница 31: ...d line 3 Select PgUp or PgDn and press Return to page through login pages records until you find the one to be deleted 4 Once the correct record is displayed select Delete and press Return 5 To complete the delete action select Save and press Return When the deletion is complete Command Complete appears at the bottom of the screen The number of login pages records reflects one less record and the ...

Страница 32: ...he Management port and IMC from supporting a Telnet session Set the Port Use option to None or Alarms Refer to Management Port Options Table A 5 Disable the IMC using the In Band Management Channel Rate bps option in Table A 2 Effective Access Level The ATI effective access level is the more restrictive between the Port Session access level and the Access level associated with the Login ID For exa...

Страница 33: ...n Required option set to Enable See Table A 4 You are prompted for a login ID and password If Invalid Password appears re enter the password After three tries with an invalid password contact the system administrator See Table A 4 The Main Menu screen appears if the login ID is not configured yet Select a menu option to begin your session Terminal port and the ATI is already in use with a Telnet s...

Страница 34: ...SNMP Management Refer to General SNMP Management Options Table A 10 to Enable SNMP Management Assign the SNMP community names of the SNMP Managers that are allowed to access the DSU s Management Information Base MIB Specify read or read write access for each SNMP community name Limiting SNMP Access through the IP Addresses of the Managers The DSU provides an additional level of security through va...

Страница 35: ... Management Port Options Table A 5 However verify that a route to the subnet s is set in the NMS s or local router s routing table This equipment will not automatically receive routing information due to the proprietary protocol The gateway to subnet s is through the DSU connected to The LAN using a LAN adapter or A router terminal server or NMS via PPP or SLIP link layer protocols Each DSU s rout...

Страница 36: ...rganization The following illustrations and examples apply to IP management traffic only The subnet mask shown for these examples is 255 255 255 000 IMC Connection Same Subnet In this example DSU A is connected to The NMS at the central site via a LAN adapter A remote unit DSU B through the proprietary IMC NOTE Interconnected DSUs will automatically pass routing information between each other usin...

Страница 37: ...en the routers The illustration shows each DSU with its own subnet This subnet is independent of the subnet on the LAN which is supported by the local router This enables the router to distinguish the data destined for the DSU from the data for the LAN DDS Network NMS Host 496 15086 135 18 1 2 Management Port 135 18 4 2 Subnet 135 18 1 0 Subnet 135 18 5 0 Management Port 135 18 5 2 Subnet 135 18 2...

Страница 38: ...ort IP address and subnet mask Refer to Communication Protocol Options Table A 9 The IMC Assign the IP address and subnet mask Refer to Network Interface Options Table A 2 The SNMP NMS Security Options screen provides options to perform security checking on the IP address of the SNMP management system attempting to communicate to the DSU Refer to SNMP NMS Security Options Table A 11 Choosing a Def...

Страница 39: ... Network Interface Status screen on the ATI Network Performance Statistics screen on the ATI NMS via SNMP MIB objects Refer to MIB Descriptions Appendix C for the SNMP MIBs supported by the DSU DSU LEDs The DSU LEDs can be viewed on the Display LEDs Status screen This ATI status screen is available locally and remotely The 12 LEDs are organized in three groups System LEDs display the status of the...

Страница 40: ...atus display screen is updated approximately every 5 seconds Use Refresh to obtain a current status of all LEDs System LEDs OK ON DSU is operational OFF DSU is performing a power up self test has detected a system failure or there is no power ALARM ON DSU has detected an alarm condition locally or from the network Refer to the Troubleshooting section in Chapter 8 TEST ON Test in progress Test can ...

Страница 41: ...OFF DDS network interface is receiving CMI codes OOS Out of Service ON DSU is receiving out of service code from the remote unit Refer to Health and Status Messages Table 6 1 OOF Out of Frame ON DSU is detecting an out of frame condition Refer to Health and Status Messages Table 6 1 NS No Signal ON DDS network interface detects no signal Refer to Health and Status Messages Table 6 1 ...

Страница 42: ...ata ON Sending all 1 s to the DTE OFF Sending all 0 s to the DTE Blinking User data is being transferred RTS Request to Send ON DTE is activating a control signal to indicate readiness to transmit data CTS Clear to Send ON DSU is activating a control signal to indicate to the DTE that it can start sending data DTR Data Terminal Ready ON DTE is activating a control signal to indicate readiness for ...

Страница 43: ...s on the bottom right The messages are listed from high to low priority in Table 6 1 Table 6 1 Health and Status Messages 1 of 2 Message What Message Indicates What To Do Cross Pair Detection The DDS Receive RX and Transmit TX pairs are crossed on the network interface Alarm LED is on Reverse the RX and TX pair at the punchdown block or other termination point No Signal hhh mm ss1 No signal is bei...

Страница 44: ...unit has IMC set at the same rate 2 Contact network provider if problem persists User Data Port DTR Off The DTE is not ready to transmit or receive data This message will not appear unless Monitor DTR is enabled Check on the DTE status Verify that the DTE is powered up and asserting DTR Net Mgmt Link Down Communications between the DSU and an NMS are not possible and the Management Port Use is set...

Страница 45: ... operating line and the Line Rate Kbps shows Autobaud and does not change to a line rate within about 15 seconds Line Rate Kbps may have to be reconfigured manually Refer to Network Interface Options Table A 2 Loop Loss dB The loop loss is the loss of signal strength of the receive line signal from the local loop To view the Network Interface Status follow this menu selection sequence Main Menu St...

Страница 46: ... 26 33 08 Out of Service Count 0 0 00 00 Out of Frame Count 621 8 53 49 Excessive BPV Count 99830 144 28 11 Invalid BPV Count 87409 ESC for previous menu MainMenu Exit Refresh ClrStats Î Î ÎÎ ÎÎ All counts show the number of occurrences since the last reset of the counters Invalid BPV is a raw count of the number of invalid Bipolar Violations In the last column hhh mm ss indicates the amount of ti...

Страница 47: ...rm Condition Indications The following table shows the available indicators of alarm conditions on the network interface and the User Data port Alarm Condition SNMP Trap ATI Status Screen ASCII Alarm if configured Alarm LED Specific LED Crossed Pairs Y1 Y Y Y N No Signal NS Y1 Y Y Y Y Out of Service OOS Y1 Y Y Y Y Out of Frame OOF Y1 Y Y Y Y Excessive Bipolar Violations BPV Y1 Y Y Y N Inband Frami...

Страница 48: ...ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ main test network Device Name Model 7610 NETWOR...

Страница 49: ...y the user via ATI or by the NMS DSU CSU DTE Interface Aggregate DTE Port DDS Network Port 496 15160 DSU Loopback Send V 54 Up Down Sequences The local DSU can send an ITU T V 54 Up or Down sequence to request the activation or termination of a DSU digital loopback of a remote unit This is the same as the DSU Loopback shown above except the test is activated remotely The DSU can send In band V 54 ...

Страница 50: ...cated as close as possible to the User Data Port DTE interface DSU CSU DTE Interface Aggregate DDS Network Port 496 15145 DTE Port Local Loopback 511 Test Pattern for the DTE This test sends or monitors a 511 test pattern over the User Data Port interface The 511 monitor expects the external equipment to provide the clock for the 511 pattern on the interchange circuit CT113 Transmit Signal Element...

Страница 51: ...all tests on all interfaces have been terminated Test Status Messages The Test Status Messages in Table 7 1 appear in the right most column of the System and Test Status screen For additional information on loopbacks refer to Loopbacks Table 7 2 Table 7 1 Test Status Messages 1 of 2 Test Status Message Meaning CSU Loopback Active A CSU Loopback toward the network is currently active Only applies t...

Страница 52: ...opback is active that was initiated by the detection of a V 54 sequence originated by the remote unit This condition can only occur when V 54 Initiated DSU Loopback is enabled Refer to Network Interface Options Table A 2 Loopbacks Loopbacks can be started from a variety of points in the network Refer to Table 7 2 for further information Table 7 2 Loopbacks 1 of 2 Loopback Type Initiated By Notes B...

Страница 53: ... via CT140 can be disabled Refer to Data Port Options Table A 3 Device Reset The DSU can be reset locally or remotely From the Control menu select Reset Device and press Return The DSU reinitializes itself performing a Device Self Test Refer to Self Test Results Messages Table 6 2 Misconfiguring the DSU could make the user interface inaccessible leaving it in a state where an ATI session cannot be...

Страница 54: ...If entering yes to prompt Then all Reset Terminal Port Options Terminal port options are set to their factory default values Refer to Terminal Port Options Table A 4 Reload Factory Defaults Factory default settings contained in the Default Factory Configuration area are loaded in Current Customer 1 and Customer 2 configuration areas Any changes to configuration and control settings will be replace...

Страница 55: ...eshooting Alarm Messages Alarm messages and SNMP traps are unsolicited messages sent out from the DSU automatically when the DSU detects conditions set by the user ASCII Alarms Alarm messages are sent out to an ASCII terminal or printer via the Management port if Port Use is configured for Alarms Refer to Management Port Options Table A 5 Each ASCII Alarm Message to be generated has been enabled R...

Страница 56: ...tion of Chapter 3 for device name information Each ASCII alarm message is preceded by the device name and a time stamp The time stamp ddd hh mm represents the cumulative number of days hours and minutes since the DSU s last reset The time resets to zero on power up or reset An ASCII alarm message displays similar to this example NE815378 283 14 57 Crossed Pair condition has been detected on the DD...

Страница 57: ...manager specified H Select the type of SNMP traps to be sent from the DSU To configure SNMP Traps follow this menu selection sequence Main Menu Configuration Load Configuration From Edit SNMP Communication SNMP Traps Refer to SNMP Traps Options Table A 12 Dialing Out SNMP Traps Configure the SNMP traps before performing this procedure Procedure 1 Configure the phone directories to use when dialing...

Страница 58: ... entered access is denied Try again Contact your system administrator to verify your password Invalid Test Already Active Test can be a CSU DSU or DTE Local Loopback or a Send 511 or Monitor 511 The test was already in progress when another selection was made Allow test to continue Select another test Stop the test Invalid Test Combination A loopback or 511 pattern test was in progress when Start ...

Страница 59: ...arted from Troubleshooting This DSU is designed to provide you with many years of trouble free service If a problem occurs however refer to Table 8 2 for possible solutions Table 8 2 Troubleshooting 1 of 2 Symptom Possible Cause Solutions Alarm LED is on One of several alarm conditions exists Health and Status displays the alarm condition Refer to Health and Status Messages Table 6 1 for recommend...

Страница 60: ...esponding DDS line rate speed has changed Excessive BPVs causing DSU to become stuck in Autobaud mode Excessive Loop Loss causing DSU to become stuck in Autobaud mode 1 Verify that your subscriber loop is running at 56 or 64 CC kbps 2 If getting Excessive BPVs verify that you do not have a bad cable If the cable is good contact the network provider 3 If getting excessive Loop Loss dB indications i...

Страница 61: ...Port Options Table A 3 User data on DTE port User Interface Terminal Port Options Table A 4 Management Port Options Table A 5 External Device Options Table A 6 Telnet Sessions Options Table A 7 Access to the ATI Alarms Traps Alarms Traps Options Table A 8 ASCII alarms and SNMP traps initiated by the DSU SNMP Communication Communication Protocol Options Table A 9 General SNMP Management Options Tab...

Страница 62: ...m Options Menu For System Options refer to Table A 1 To access the System Options screen follow this menu selection sequence Main Menu Configuration Load Configuration From Edit System Table A 1 System Options 1 of 3 Operating Mode Possible Settings DDS LADS Default Setting DDS The unit s operating mode depends upon the DSU s application DDS Standard DDS network operation The operating rate is eit...

Страница 63: ...ADS Timing Possible Settings Internal External Receive Default Setting Receive Determines the timing source for the unit LADS Timing option appears when Operating Mode is set to LADS Internal Timing derived from the unit s local clock Use this setting for the LADS primary timing unit that establishes the timing for both point to point units External Timing is derived from the external clock provid...

Страница 64: ...hapter 7 NOTE Tests commanded by the DTE or network initiated tests are not affected by this test timeout Test Duration min Possible Settings 1 120 Default Setting 10 Number of minutes for a test to be active before automatically ending Test Duration min option appears when Test Timeout is enabled 1 to 120 Amount of time in minutes for a user initiated test to run before terminating Security Viola...

Страница 65: ...crambling is used to suppress the possible simulation of network initiated DSU latching loopback commands by application data Data Scrambling 64K CC option appears when Operating Mode is set to DDS in Table A 1 Enable Enables data scrambling The local and remote units must be set the same Disable No data scrambling V 54 Initiated DSU Loopback Possible Settings Enable Disable Default Setting Disabl...

Страница 66: ...5 Clear Clears the IMC Subnet Mask and sets to all zeros When the subnet mask is all zeros the device creates a default subnet mask based on the class of IP address Class A defaults to 255 000 000 000 Class B defaults to 255 255 000 000 Class C defaults to 255 255 255 000 IMC Routing Information Protocol Possible Settings None Proprietary Default Setting Proprietary The RIP routes IMC management i...

Страница 67: ...ce condition is detected Disable No ASCII alarm is generated NOTE Additional settings are required to send out an ASCII alarm Refer to the Alarm Messages section in Chapter 8 Out of Frame Alarm Possible Settings Enable Disable Default Setting Enable When an OOF condition is detected on the network interface an ASCII alarm is generated Enable Generates an ASCII alarm when an out of frame condition ...

Страница 68: ...ng condition is detected on the network interface an ASCII alarm is generated In Band Framing Alarm option does not appear when the In Band Management Channel Rate bps is disabled Enable Generates an ASCII alarm when a in band framing condition is detected Disable No ASCII alarm is generated NOTE Additional settings are required to send out an ASCII alarm Refer to the Alarm Messages section in Cha...

Страница 69: ...the Interchange Circuits specified by the V 54 standard NOTE Refer to the Loopbacks section of Chapter 7 Disable No local or remote loopbacks can be initiated by the DTE Local A local loopback can be controlled by the DTE via the Interchange Circuit LL CT141 as specified by V 54 The DTE port remains in loopback as along as LL remains on Aborting the loopback from the ATI has no effect Remote A rem...

Страница 70: ...S lead without delay regardless of alarms and tests Forced On CTS is always forced on after the unit is powered up with a successful self test Circuit Assurance With circuit assurance CTS operates the same as the Standard option except that CTS will also be deasserted when CMI codes are being received RLSD Control Possible Settings Standard Forced On Default Setting Standard Specifies the operatio...

Страница 71: ...erface Options Menu The User Interface Options Menu includes the following Terminal Port Options Table A 4 Management Port Options Table A 5 External Device Options Table A 6 Telnet Session Options Table A 7 Terminal Port Options To access the Terminal Port Options screen follow this menu selection sequence Main Menu Configuration Load Configuration From Edit User Interface Terminal Port Table A 4...

Страница 72: ...Terminal port Login IDs are created with a password and access level Enable Security is enabled When ATI access is attempted through the Terminal port a screen appears that requires a Login ID and password Disable Main menu appears with no Login required NOTE Refer to the Creating a Login section of Chapter 4 Port Access Level Possible Settings Level 1 Level 2 Level 3 Default Setting Level 1 The T...

Страница 73: ...tting 5 Number of minutes of inactivity before the ATI session terminates automatically Timeout is based on no keyboard activity Disconnect Time minutes option appears when Inactivity Timeout is enabled 1 to 60 The ATI user session is closed after the selected number of minutes Management Port Options To access the Management Port Options screen follow this menu selection sequence Main Menu Config...

Страница 74: ...t port is always defined as a DCE This option setting forces the Management port to use external transmit clocking XTXC or TT from a connected device DTE Data Rate Kbps Possible Settings 2 4 4 8 9 6 14 4 19 2 28 8 38 4 Default Setting 9 6 Specifies the Management port data rate in kbps Data Rate Kbps option does not appear when Port Type is set to Synchronous with Clock Source set to External 2 4 ...

Страница 75: ... control lead Disable DTR is ignored Some external device connections may require this setting Routing Information Protocol Possible Settings None Proprietary Default Setting None Specifies the routing protocol between devices through the Management port Routing Information Protocol appears when Port Use is set for Net Link None No routing protocol use None when the device connected to the Managem...

Страница 76: ...nal Device Commands is set to AT no other options in this table will appear Other Commands configured by the user are sent out the Management port Dial In Access Possible Settings Enable Disable Default Setting Disable Controls external device dial in access through the Management port Dial In Access option appears when External Device Commands is set to AT Enable Answers incoming calls from an ex...

Страница 77: ...en an external device connection is established the Escape Sequence can be used to switch an external device to command mode before sending the disconnect command Refer to Escape Sequence Delay sec for delay before and after the Escape Sequence Escape Sequence option appears when External Device Commands is set to Other ASCII Text Enter a maximum of 20 characters Refer to the ASCII Characters sect...

Страница 78: ...ion Options To access the Telnet Session Options screen follow this menu selection sequence Main Menu Configuration Load Configuration From Edit User Interface Telnet Session Table A 7 Telnet Session Options 1 of 2 Telnet Session Possible Settings Enable Disable Default Setting Disable Specifies if the DSU will respond to a Telnet session request from a Telnet client on an interconnected IP networ...

Страница 79: ...vel provides the effective access level and overrides the access level of a Login ID NOTE Refer to the ATI Access section of Chapter 4 for access level details Inactivity Timeout Possible Settings Enable Disable Default Setting Disable Provides automatic logoff of a Telnet session Enable The Telnet session terminates automatically after the Disconnect Time set in the next option Disable A Telnet s...

Страница 80: ...ready established via an external DCE If an external device is connected to the Management port with no active connection the message control is based on the next option Alarm Trap Dial Out External Device Commands must be configured for AT or Other in External Device Options Table A 6 Disable ASCII alarm messages are not generated or sent Alarm Trap Dial Out Possible Settings Enable Disable Defau...

Страница 81: ...lay Time min and Alternate Dial Out Directory affect the amount of time before a retry and the number of retries Disable No retry of an unsuccessful call Dial Out Delay Time min Possible Settings 1 2 3 4 5 6 7 8 9 10 Default Setting 5 This delay applies to both the number of minutes before a new call is initiated for a different alarm and the number of minutes between call retries Refer to the pre...

Страница 82: ...5 for the Management Port IP Address to be effective 000 000 000 000 223 255 255 255 Sets the Management port IP address The range for the first byte is 000 to 223 with the exception of 127 The range for the remaining three bytes is 000 to 255 Clear Clears the IP address and sets to all zeros NOTE This IP address is also used if the Alternate Directory Phone Number is attempted and the Alternate M...

Страница 83: ...ar Default Setting 000 000 000 000 Specifies the alternate subnet mask used to access the Management port Used with the previous option Alternate Management Port IP Address 000 000 000 000 255 255 255 255 Sets the management port alternate subnet mask The range for each byte is 000 to 255 Clear Clears the alternate subnet mask and sets to all zeros The device creates a default alternate subnet mas...

Страница 84: ...ccess a MIB object Level of access is set in the next option Name 1 Access ASCII Text Enter a maximum of 255 ASCII printable characters Refer to the ASCII Characters section Clear Clears the Community Name 1 field Name 1 Access Possible Settings Read Read Write Default Setting Read Set the access level for the Community Name 1 created in the previous option Read Allows a read only access i e SNMP ...

Страница 85: ...Configuration From Edit SNMP Communication SNMP NMS Security Table A 11 SNMP NMS Security Options 1 of 2 NMS IP Validation Possible Settings Enable Disable Default Setting Disable Determines if security checks are performed on the IP address of any SNMP management system that attempts to access the node Enable Performs security checking Allows access only if the sending manager s IP address has be...

Страница 86: ...henticationFailure trap is generated 000 000 000 000 223 255 255 255 Sets the NMS IP address The range for the first byte is 000 to 223 with the exception of 127 The range for the remaining three bytes is 000 to 255 Clear Clears the IP address and sets to all zeros Access Level Possible Settings Read Read Write Default Setting Read Set the access level for each IP address created in the previous o...

Страница 87: ...etting 1 Sets the number of SNMP management systems that will receive SNMP traps 1 to 6 Number of trap managers An NMS IP address is required for each manager Trap Manager n IP Address Possible Settings 000 000 000 000 223 255 255 255 Clear Default Setting 000 000 000 000 Specifies the Internet Protocol address used to identify each SNMP trap manager n represents the number of the manager from 1 t...

Страница 88: ...his option is used to determine if SNMP traps are generated for link up and link down for one of the communication interfaces Disable No linkUp or linkDown SNMP traps are generated Up A linkUp trap is generated when the DSU recognizes that one of the communication interfaces is operational Down A linkDown trap is generated when the DSU recognizes a failure in one of the communication interfaces Bo...

Страница 89: ...n Refer to the Entering Device and System Information section in Chapter 3 Device Name field System Name field System Location field System Contact field Call Directories screen Refer to the Call Setup section in Chapter 3 Phone Number field Administer Logins screen Refer to the Creating a Login section in Chapter 4 Login ID field Password field External Device Options Table A 6 Connect Prefix opt...

Страница 90: ...n Connects Indication String option Escape Sequence option Disconnect String option Table A 13 ASCII Non Printable Characters Sequence ASCII Hex Sequence ASCII Hex A or a SOH 0x01 Q or q DC1 0x11 B or b STX 0x02 R or r DC2 0x12 C or c ETX 0x03 S or s DC3 0x13 D or d EOT 0x04 T or t DC4 0x14 E or e ENQ 0x05 U or u NAK 0x15 F or f ACK 0x06 V or v SYN 0x17 G or g BEL 0x07 W or w ETB 0x17 H or h BS 0x...

Страница 91: ...ossible menu selections are displayed with the default settings and the possible settings Configuration Worksheets System Configuration Option Settings Default in Bold Operating Mode DDS LADS DDS Line Rate Kbps 56 64CC Autobaud LADS Timing Internal External Receive LADS Line Rate Kbps 56 64 Test Timeout Enable Disable Test Duration min 1 120 10 Security Violation Alarm Enable Disable ...

Страница 92: ...tocol None Proprietary Cross Pair Detection Alarm Enable Disable No Signal Alarm Enable Disable Out of Service Alarm Enable Disable Out of Frame Alarm Enable Disable Excessive BPV Alarm Enable Disable In Band Framing Alarm Enable Disable Data Port Configuration Option Settings Default in Bold Invert Transmit Clock Enable Disable Port DTE Initiated Loopbacks Disable Local Remote Both Bilateral Loop...

Страница 93: ...nchronous Clock Source Internal External Data Rate Kbps 2 4 4 8 9 6 14 4 19 2 28 8 38 4 Character Length 7 8 Parity None Even Odd Stop Bits 1 1 5 2 Monitor DTR Enable Disable Routing Management Protocol None Proprietary External Device External Device Commands Disable AT Other Dial In Access Enable Disable Connect Prefix ASCII Text Connects Indication String ASCII Text Escape Sequence ASCII Text E...

Страница 94: ...000 000 223 255 255 255 Alternate Mgmt Port Subnet Mask 000 000 000 000 255 255 255 255 Default Network Destination None Mgmt IMC General SNMP Management SNMP Management Disable Enable Community Name 1 ASCII Text Public Name 1 Access Read Read Write Community Name 2 ASCII Text Name 2 Access Read Read Write SNMP NMS Security NMS IP Validation Enable Disable Number of Managers 1 2 3 4 5 6 7 8 9 10 N...

Страница 95: ...bjects Table C 1 Interfaces Group Objects Supported for the DDS network interface User Data DTE port Terminal port Management port and the IMC as defined in RFC 1573 the Evolution of the Interfaces Group Interfaces Group Objects Table C 2 Extension to Interface Table ifXTable Table C 3 Interface Stack Group Objects Table C 4 Interface Test Group Objects Table C 5 IP Group Objects Table C 6 ICMP In...

Страница 96: ...s Table C 10 Not supported for the Terminal port Input Signal Table Objects Table C 11 Not supported for the Management port or Terminal port Output Signal Table Objects Table C 12 Not supported for the Management port or Terminal port Enterprise MIB Objects The following Paradyne Enterprise MIB Objects are supported by the unit Device Configuration Variable Table C 13 Port Usage Table attp devPor...

Страница 97: ...anaged unit 1 ASCII character string as set by the user sysName system 5 Provides an administratively assigned name for this managed unit 1 ASCII character string as set by the user sysLocation system 6 Provides the physical location for this managed unit 1 ASCII character string as set by the user sysServices system 7 Functionality supported physical 1 Layer 1 functionality for all interfaces dat...

Страница 98: ...her tables as well When an unsupported index is entered e g 3 and 5 noSuchName is returned Indexes and values 1 Management port 2 Terminal port 4 DDS network interface 6 User Data DTE port 7 In band Management Channel ifDescr ifEntry 2 Supplies text for each Interface Management Terminal DDS Network User Data Port In band Management Channel Text Strings for each interface Management Port PARADYNE ...

Страница 99: ...ink v35 45 Used for the User Data port ifMtu ifEntry 4 Identifies the largest datagram that can be sent or received on an interface Management port or IMC Number of octets ifSpeed ifEntry 5 Provides the current bandwidth for the interface in bits per second Management port Configured data rate for the port Terminal port Configured data rate for the port DDS Line rate of 56 000 or 64 000 bps reflec...

Страница 100: ...sed on the current state of the physical and link layer protocols up 1 Operational and no active test on the DDS network interface down 2 Not operational or disabled testing 3 Test active on DDS network interface ifLastChange ifEntry 9 Indicates the amount of time the interface has been up and running Contains the value of sysUpTime object at the time the interface entered its current operational ...

Страница 101: ...Supports only the following objects Table C 3 Extension to Interface Table ifXTable Object Description Setting Contents ifName ifXEntry 1 Provides name of the interface Interface text strings Management Port Terminal Port DDS Network User Data Port In band Management Channel ifLinkUpDown TrapEnable ifXEntry 14 Indicates whether the link is up or down or enterprise specific traps should be generate...

Страница 102: ...t Channel is set to the ifIndex of the DDS network interface All other ifStackLowerLayer objects will have a value of zero ifStackStatus ifStackEntry3 Specifies the stack group s status compared to the interface s ifOperStatus Supported as a read only variable When ifStackStatus set to active maps to ifOperStatus set to up 1 or testing 3 When ifStackStatus set to not in service maps to ifOperStatu...

Страница 103: ...s the test in progress on the interface testLoopDTE ifTestType 2 Starts a Local Loopback DTE on the interface testMon511 ifTestType4 Starts a Monitor 511 test on the interface testSend511 ifTestType6 Starts a Send 511 test on the interface ifTestCode ifTestEntry 5 Contains a code which is more specific about the test results Supports the following values none ifTestCode 1 No further information is...

Страница 104: ...or each IP address supported by the device If the same IP address is configured for multiple interfaces or for default IP addresses the ipAddrTable will not display all of the interfaces that support a particular IP address ipAdEntIfIndex ipAddrEntry 2 If this object has a greater value than the ifNumber then it refers to a proprietary interface not currently implemented by the MIB II Interface Gr...

Страница 105: ... Defaults to 1 hop ipRouteType Defaults to indirect ipRouteMask Defaults to what is specified in the MIB description Objects that are not used by this unit ipRouteMetric2 ipRouteMetric3 ipRoutemetric4 ipRoutemetric5 Default to 1 ipRouteNextHop Defaults to 0 0 0 0 ipRouteNextHop Defaults to 0 0 0 0 Do not specify the following read only objects in the Set PDU used to add a route ipRouteProto Set to...

Страница 106: ...d through other Internet standard MIB definitions rather than within MIB II Table C 7 Transmission Group Objects Object Description rs232 transmission 33 Supported on the User Data port Management port and Terminal port Defined by the RS 232 like MIB RFC 1659 enterprise transmission 22 Supported on the DDS network interface by Paradyne Enterprise MIB SNMP Group The SNMP Group objects that apply to...

Страница 107: ... User Data port which is compatible with the V 35 standard rs232PortInSig Number rs232PortEntry 3 Contains the number of input signals in the input signal table that can be detected The value is 2 for synchronous user data port and 0 for both the Management port and Terminal port rs232PortOutSig Number rs232PortEntry 4 Contains the number of output signals in the output signal table that can be as...

Страница 108: ...gured for asynchronous operation The following are not supported rs232PortInFlowType rs232PortEntry 7 rs232PortOutFlowType rs232PortEntry 8 Asynchronous Port Table Objects The Asynchronous Port Table Objects contains an entry for the Management port when the port is configured for asynchronous operation and for the Terminal port For this unit entries in the table that are counters rs232AsyncPortEn...

Страница 109: ...low Table C 10 Synchronous Port Table Objects 1 of 2 Object Description Setting Contents rs232SyncPort ClockSource rs232Sync PortEntry 2 Specifies the clock source for the port Supports only the following values internal 1 The port uses an internal clock split 3 The port uses an external transmit clock and internal receive clock rs232SyncPort Role rs232Sync PortEntry 8 Specifies whether this devic...

Страница 110: ...attern rs232SyncPortEntry 13 rs232SyncPortMinFlags rs232SyncPortEntry 14 Input Signal Table Objects The Input Signal Table Objects contains entries for the input signals that can be detected by the unit for the synchronous user data port Clarification for objects contained in this table as it applies to the unit is provided below Table C 11 Input Signal Table Objects Object Description Setting Con...

Страница 111: ...e rs232OutSigEntry 2 Contains the identification of a hardware output signal Supports only the following values cts 2 Clear To Send dsr 3 Data Set Ready dcd 6 Received Line Signal Detector rs232OutSigState rs232OutSigEntry 3 Contains the current signal state Supports only the following values on 2 The signal is asserted off 3 The signal is deasserted rs232OutSigChanges rs232OutSigEntry 4 Indicates...

Страница 112: ... 1 area customer2 to customer1 7 Copy from factory area to active area There is only one factory area for the unit factory1 to active 8 Copy from factory area to customer 1 area factory1 to customer1 9 Copy from factory area to customer 2 area factory1 to customer2 10 Port Usage Table pdn devPortUsage pdn interfaces 3 The Port Usage Table specifies whether the Management port is configured for ASC...

Страница 113: ...everal enterprise specific traps authenticationFailure warmStart linkUp linkDown Trap authentificationFailure SNMP Trap Description Possible Cause authenticationFailure Failed attempts to access the unit SNMP message not properly authenticated Three unsuccessful attempts were made to enter a correct login password combination IP address security is enabled and a message was received from SNMP mana...

Страница 114: ...ossible Cause Physical Sublayer Represented by the entry in the MIB II Interfaces Table DDS network Supported by the media specific DDS Enterprise MIB ifIndex RFC 1573 ifAdminStatus RFC 1573 ifOperStatus RFC 1573 ifType RFC 1573 ddsStatus DDS Enterprise MIB linkDown One or more alarm conditions are active on the interface Alarm conditions include No Signal Out of Service Out of Frame Crossed Pair ...

Страница 115: ...enterpriseDeviceFail 3 An internal device failure Operating software has detected an internal device failure enterpriseTestStart 5 A test is running At least one test has been started on an interface enterpriseConfigChange 6 The configuration changed via the user interface or an SNMP manager The trap is sent after 60 seconds have elapsed without another change This suppresses the sending of numero...

Страница 116: ...layer DDS network ifIndex RFC 1573 ifAdminStatus RFC 1573 ifOperStatus RFC 1573 ifType RFC 1573 ddsTestType DDS Enterprise MIB enterpriseTest Start Any one of the following tests is active on the interface DSU Loopback CSU Loopback Send 511 pattern Monitor 511 pattern enterpriseTest Stop No longer has any tests running on the interface Synchronous User Data Ports ifIndex RFC 1573 ifAdminStatus RFC...

Страница 117: ...bling Overview The following sections provide pin assignments Terminal Port EIA 232 Connector Management Port EIA 232 Connector V 35 User Data Port Connector Standard EIA 232 D Crossover Cable LAN Adapter Converter and Cable Modular RJ48S DDS Network Interface Cable ...

Страница 118: ...r Detect CD From DSU Out 8 Data Terminal Ready DTR To DSU In 20 Management Port EIA 232 Connector The following table shows the signals and pin assignments for the Management port connector Signal Direction Pin Transmit Data TXD To DSU In 2 Received Data RXD From DSU Out 3 Request to Send RTS To DSU In 4 Clear to Send CTS From DSU Out 5 Data Set Ready DSR From DSU Out 6 Signal Ground SG 7 Carrier ...

Страница 119: ...ta Set Ready DSR 107 From DSU Out E Received Line Signal Detector RLSD or LSD 109 From DSU Out F Data Terminal Ready DTR 108 1 2 To DSU In H Remote Loopback RL 140 To DSU In N Local Loopback LL 141 To DSU In L Transmitted Data TXD 103 To DSU In P A S B Received Data RXD 104 From DSU Out R A T B Transmitter Signal Element Timing DTE Source XTXC or TT 113 To DSU In U A W B Receiver Signal Element Ti...

Страница 120: ...ent port to an external modem Pin 1 Pin 14 Pin 13 Pin 25 Pin 1 Pin 14 Pin 13 Pin 25 P2 Plug Chassis Ground TXD RXD RTS DSR Signal Ground CD RLSD RXC DTR XTXC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Pin 496 15180 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 P1 Chassis Ground TXD RXD RTS DSR Signal Ground CD RLSD RXC DTR XTXC Pin P2 P1 Plug ...

Страница 121: ...me Ground Unused Plug to Modular Jack Plug to LAN Adapter 496 15179 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Tx Clock Rx Data Signal Ground Tx Data DTR CD RTS Rx Clock Management Port DB25 Plug 8 Position Modular Jack 15 3 7 2 20 8 4 17 1 2 3 4 5 6 7 8 Plug to Modular Jack Converter Cable Modular RJ48S DDS Network Interface Cable Network access is via a 14 foot modular cable with an RJ48S keyed plug connec...

Страница 122: ... a valid DDS network signal is detected The auxiliary communications port on a router Bipolar Violation A modified bipolar signaling method in which a control code is inserted Circuit Card Assembly A printed circuit board to which separate components are attached Consultative Committee on International Telegraphy and Telephony See ITU Carrier Detect A signal indicating that energy exists on the tr...

Страница 123: ...rical communication systems that originate from the United States A switching interface that is designed to get frames from one part of the network to another as quickly as possible The capability to transmit in two directions simultaneously High Level Data Link Control A communications protocol defined by the International Standards Organization ISO Internet Control Management Protocol Internet p...

Страница 124: ...he original MIB I A method for interleaving several access channels onto a single circuit for transmission over the network Network Management System A computer system used for monitoring and controlling network devices A connection or switching point on the network A non latching loopback can only be initiated or terminated by the 56 kbps network service provider No Signal A network reported cond...

Страница 125: ... In a subnetted network the host portion of an IP address is split into a subnet portion and a host portion using a subnet address mask This allows a site to use a single IP network address for multiple physical networks An integer used with the IP address of the host to determine which bits in the host address are used in the subnet address Data transmission that is synchronized by timing signals...

Страница 126: ...ommunication protocol options A 1 A 22 community names for SNMP 4 6 configuration example 1 1 menu 2 1 2 2 option areas 3 4 3 5 option tables A 1 A 26 option worksheets B 1 B 4 connectors rear panel E 1 E 5 control menu 2 1 2 2 create login ID 4 2 crossover EIA 232 cable E 4 CTS clear to send LED 6 4 customer configuration areas 3 4 D data port See DTE data port options A 1 A 9 A 11 data port test...

Страница 127: ...P interfaces 4 1 4 6 5 2 K keyboard functions 2 4 L LADS connection distances See Start Up Instructions lamp test 7 4 LAN adapter 5 1 5 4 adapter and cable E 5 LEDs 6 1 6 4 front panel 1 3 link layer protocols 1 4 5 1 5 4 login ID 4 1 4 3 loopbacks 7 3 7 7 M main menu 2 1 2 2 A 1 A 2 management of SNMP DSU 1 3 port access 4 1 4 5 port options A 1 A 13 A 17 messages alarm and device 8 1 8 6 health ...

Страница 128: ...twork interface cable E 5 router management data 5 3 routing information protocol See RIP RS 232 Like MIB C 2 RTS request to send LED 6 4 RXD received data LED 6 4 S safety instructions See Start Up Instructions saving option changes 3 5 3 6 screens for user interface 2 1 2 6 security 4 1 4 6 self test results 6 7 session telnet access 4 1 4 5 SNMP access 4 6 features 1 2 1 4 setup traps 8 3 syste...

Страница 129: ...nection 3 1 options A 1 A 11 A 13 reset 7 7 test DTE 7 4 LED 6 2 menu 2 1 2 2 network 7 2 status messages 7 5 testing 7 1 7 8 traps SNMP 8 3 D 1 D 4 troubleshooting 8 5 TXD transmitted data LED 6 4 U user interface 1 2 access 2 1 async terminal 3 1 configuration options A 1 V V 35 connector E 3 V 54 sequences 7 3 VT100 compatible terminal See async terminal W worksheets option configuration B 1 B ...

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