CSU or External Network Loopback | Paradyne SNMP DSU, 7610 specs

Testing

CSU or External Network Loopback

CSU loopback is an external loopback that is located as close as possible to the network interface. An active CSU loopback disrupts IP data going over the IMC.

DTE Port

	DSU	CSU
DTE	Aggregate

Interface

DDS

Network

Port

CSU Loopback

496-15144

DSU or Internal Network Loopback

DSU loopback is an internal loopback that is located as close as possible to the customer interface serving the DTE.

An active DSU loopback initiated from the network disrupts IP data going over the IMC. However, this test is not disruptive when initiated by the user (via ATI) or by the NMS.

DTE Port

DSU

CSU

Aggregate

DTE

Interface

DDS

Network

Port

DSU Loopback

496-15160

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:

HIn-band V.54 Up (activation) code to request a Remote DSU Loopback (V.54 Loop 2) at the remote DSU or

HIn-band V.54 Down (deactivation) code to request the termination of a Remote DSU Loopback (V.54 Loop 2) at the remote DSU

Refer to the Network Tests section for an example of the Network Tests screen. Select Send. Sending appears in the Status column followed (after 3 seconds) by Command Complete at the bottom of the screen.

7610-A2-GB20-10

November 1997

7-3

Image 48

Paradyne SNMP DSU, 7610 CSU or External Network Loopback, DSU or Internal Network Loopback, Send V.54 Up/Down Sequences

Contents

Model 7610 Snmp DSU Copyright 1996 Paradyne Corporation All rights reserved Contents Customizing the Snmp DSU Monitoring the DSU Configuration Option Tables Glossary Index About This Guide Document Purpose and Intended AudienceDocument Summary Product-Related Documents Appendix a Model 7610 Snmp DSU Features About the Snmp DSU Snmp Management Capabilities MIB Support Typical Snmp DSU Configurations Supported Link-Layer Protocols User Interface Types Rear Panel Interface ConnectionsModem Terminal Using the ATI Accessing the ATIConnecting to the Terminal Port Status Test Configuration Control Main MenuSelect Edit/Display Screen Format Types What Affects Screen DisplaysUse the screen format Screen Work Areas Menu Path Navigating the Screens Keyboard KeysPress Screen Function Keys For the screen function Select Press Return to Switching Between Screen Work Areas Ending a Session Customizing the Snmp DSU Entering Device and System Information Identity Information System Fields Configuring the DSU Configuration Option AreasConfiguration Option Area Configuration Option Set Accessing and Displaying Configuration Options Saving Configuration OptionsIf you select Then Establishing Call Setup Call Directories Screen Call Directory Phone Number Entries Characters Use Call Setup Screen Main Menu → Control → Call Setup Security Security Overview Creating a Login On the Administer Enter Logins screen, for Deleting a Login ATI Access Effective Access LevelEffective Access Levels ATI Access to Menu Functions User Interface Already Interface Idle appearsConnection Refused Controlling Snmp Access Assigning Snmp Community Names and Access Levels IP Addressing Selecting an IP Addressing Scheme IP Addressing Scheme Examples IMC Connection ± Same SubnetRemote Site Subnet Using Routers to Route DSU Management Data DDS Choosing a Default Network Destination If using ThenAssigning IP Addresses and Subnet Masks Monitoring the DSU What to MonitorDSU LEDs System LEDs Main Menu → Status → Display LEDs DM ± Data Mode OOS ± Out of ServiceNS ± No Signal Network LEDs Port LEDs Unit Status Viewing Health and StatusHhhmmss Yyyyyyyy Network Interface Status Self-Test Results Network Performance Statistics Network Performance Statistics Testing Detecting ProblemsAlarm Condition Trap ATI Status Ascii Alarm Screen If configured Tests Available Network Tests CSU or External Network Loopback DSU or Internal Network LoopbackSend V.54 Up/Down Sequences Data Port Tests Lamp TestTest Pattern for the Network Local Loopback Ending an Active Test Test Status MessagesTest Status Messages 1 Meaning Loopbacks Test Status Messages 2 MeaningLoopbacks 1 Loopback Type Initiated By Device Reset Loopbacks 2 Loopback Type Initiated By If entering yes to prompt Then all Messages and Troubleshooting Messages and TroubleshootingAlarm Messages Ascii Alarms Ascii Alarm Messages Configuring Snmp Traps Dialing Out Snmp Traps Device Messages Device Messages 1 What Message Indicates What To Do Troubleshooting Troubleshooting 1 Symptom Possible Cause SolutionsDevice Messages 2 What Message Indicates What To Do Troubleshooting 2 Symptom Possible Cause Solutions Tests Available section Configuration Option Tables Configuration Option Tables OverviewSelect To Access To Configure Operating Mode System Options MenuTable A-1. System Options 1 Edit/Display Status Lads Timing Possible Settings Internal, External, Receive Table A-1. System Options 2DDS Line Rate Kbps Lads Line Rate Kbps Test Timeout Security Violation AlarmTable A-1. System Options 3 Test Duration min Network Interface Options Menu Table A-2. Network Interface Options 1Network-initiated DSU Loopback 64K CC Data Scrambling 64K CC Cross Pair Detection Alarm Table A-2. Network Interface Options 2IMC Routing Information Protocol No Signal Alarm Out of Service AlarmOut of Frame Alarm Excessive BPV Alarm In-Band Framing Alarm Table A-2. Network Interface Options 4 Data Port Options Menu Table A-3. Data Port Options 1Invert Transmit Clock Bilateral Loopback Table A-3. Data Port Options 2 Carrier Control by RTSRlsd Control User Interface Options Menu Terminal Port OptionsTable A-3. Data Port Options 3 Table A-4. Terminal Port Options 1 Login Required Port Access Level Possible Settings Level 1, Level 2, LevelTable A-4. Terminal Port Options 2 Parity Management Port Options Table A-4. Terminal Port Options 3Table A-5. Management Port Options 1 Port Type Possible Settings Asynchronous, Synchronous Table A-5. Management Port Options 2Clock Source External Device Options for the Management Port Table A-5. Management Port Options 3Routing Information Protocol External Device Commands Dial-In AccessTable A-6. External Device Options 1 Connect Prefix Table A-6. External Device Options 2 Connect Indication StringEscape Sequence Telnet Session Options Table A-6. External Device Options 3Table A-7. Telnet Session Options 1 Disconnect String Table A-7. Telnet Session Options 2 Disconnect Time minutes Alarms & Traps Options Menu Table A-8. Alarms & Traps Options 1Ascii Alarm Messages Alarm & Trap Dial-Out Table A-8. Alarms & Traps Options 2 Snmp Trap DisconnectCall Retry Alternate Dial-Out Directory Snmp & Communication Options Menu Communication Protocol OptionsTable A-9. Communication Protocol Options 1 Default Network Destination Table A-9. Communication Protocol Options 2Management Port Link Protocol Name 1 Access General Snmp Management OptionsTable A-10. General Snmp Management Options 1 Snmp Management Name 2 Access Snmp NMS Security OptionsTable A-10. General Snmp Management Options 2 Table A-11. Snmp NMS Security Options 1 Access Level Table A-11. Snmp NMS Security Options 2 Snmp Traps Options Table A-12. Snmp Traps Options 1Snmp Traps Number of Trap Managers Link Traps Possible Settings Disable, Up, Down, Both Table A-12. Snmp Traps Options 2Enterprise Specific Traps Link Trap Interfaces Ascii Characters Table A-13. Ascii Non-Printable Characters Sequence Hex SequenceHex Configuration Worksheets Configuration Option SettingsWorksheets Overview Network Interface None, Proprietary Terminal Port Management PortExternal Device Enable, Disable Communication ProtocolGeneral Snmp Management Snmp NMS Security MIB Descriptions MIB Description OverviewMIB II ± RFC 1213 and RFC RS-232-Like MIB ± RFC Enterprise MIB Objects System Group Physical 1 ± LayerDatalink/subnetwork 2 ± Internet 4 ± Layer Interfaces Group InterfacesIfEntry Software Revision PPP Testing3 state Management port is Extension to Interface Table ifXTable IfXEntry Testing3 Interface Stack GroupInterface Test Table Down2 InSyncNoBitErrors ifTestCode 2 ± InSyncWithBitErrorsIfTestEntry2 Table C-6. IP Group Objects 1 Description Setting/Contents Generic Receive Address TableIP Group Table C-6. IP Group Objects 2 Description Setting/Contents Icmp Group TCP GroupUDP Group Transmission Group RS-232-Like MIB, RFC Number of RS-232-Like Ports ObjectGeneral Port Table Objects Rs232PortEntry Asynchronous Port Table Objects Rs232Async PortEntry Synchronous Port Table Objects Rs232AsyncRs232Sync Input Signal Table Objects Integer number ± representsRs232Sync PortEntry Rs232InSigEntry Output Signal Table Objects Rs232OutSigEntry Device Configuration Variable pdn-common Port Usage Table, pdn-devPortUsage pdn-interfacesDDS Interface Specific Definitions, pdn-dds pdn-interfaces Device Security, pdn-security pdn-common Standards Compliance for Snmp Traps Snmp Traps OverviewTrap authentificationFailure Snmp Trap Description Possible Cause Trap warmStart Traps linkUp and linkDownInterface LinkUp/Down Variable-Bindings Possible Cause Traps Enterprise Specific Trap What It Indicates Possible Cause 7610-A2-GB20-10 Cables and Pin Assignments Cabling Overview Terminal Port EIA-232 Connector Management Port EIA-232 ConnectorSignal Direction Pin # User Data Port Connector SignalDirection Pin Socket Connector Standard EIA-232-D Crossover Cable Pin LAN Adapter Converter and Cable Modular RJ48S DDS Network Interface CableRJ48S DDS Network Interface Cable Functions Circuit Pin # Cable Plug to Modular Jack LAN Adapter Glossary Factory defaults EIA-232Enterprise MIB Excessive BPV Reset Latching loopbackLink layer protocol Loopback Router RS-232Subnet Subnet address Index Numbers IN-2 IN-3