CONTENTS Title Page Copyright Page Preface 1 Introduction to the MUXserver Network 1.1 Operating Principles 1.1.1 Operational Software 1.1.2 Local Area Networks 1.1.3 Terminal Servers 1.1.4 Wide Area Networks and Statistical Multiplexing 1.1.5 LAT Protocol 1.1.6 Internet Protocols 1.1.7 Ports, Users and Sessions 1.2 The MUXserver Product Family 1.2.1 Connections to the MUXserver 1.2.2 Connections to the DECmux 300 1.2.3 Compatibility 1.2.4 MUXserver Network Limitations 1.2.5 Typical Network Configurations 1.3 Installing a MUXserver Network 1.4 MUXserver Network Management Tasks 1.5 Databases 1.6 The DEChub Backplane 2 Management Tools 2.1 Physical Indicators and Controls 2.1.1 The MUXserver 320/380 2.1.2 The MUXserver 90 2.1.3 The DECmux 300 2.2 Local Mode Interface 2.2.1 User Interface 2.2.2 MUXserver Commands 2.2.3 User Access Levels (Privileges) 2.2.4 On-Line Help 2.2.4.1 Tutorial Help 2.2.4.2 Reference Help 2.2.5 Messages 2.2.6 Using Asynchronous Ports 2.2.7 Using a Remote Console 2.2.7.1 Setting Up RCF on a OpenVMS System 2.2.7.2 Setting Up CCR on an ULTRIX System 2.2.7.3 Using MUXserver Commands on a Remote Console 2.2.8 Using a LAT Command Service 2.2.8.1 Establishing a LAT Command Service 2.2.8.2 Enabling and Disabling Connections 2.2.8.3 LAT Command Service Example 2.2.9 Using a Telnet Command Port 2.2.9.1 Establishing a Telnet Command Port 2.2.9.2 Enabling and Disabling Connections 2.2.9.3 Requiring a Login Password 2.2.9.4 Telnet Command Port Example 2.3 Host-Based Management Tools 2.3.1 DSV$CONFIGURE 2.3.2 Terminal Server Manager (TSM) Software 2.3.3 Simple Network Management Protocol (SNMP) access 3 Initial Network Set-Up 3.1 Reading MUXserver Release Notes 3.2 Checking Network Installation 3.3 Checking Default Characteristics 3.3.1 Server Characteristics 3.3.2 Link Characteristics 3.3.3 Station Characteristics 3.3.4 Port Characteristics 3.3.5 Service Characteristics 3.3.6 Telnet Listener Port Characteristics 3.4 Enabling Privileged Status 3.5 Setting Up Server Characteristics for a LAT Network 3.6 Setting Up Server Characteristics for an Internet Network 3.7 Attaching to a Station 3.8 Setting up Characteristics for Links 3.9 Setting Up Characteristics for Terminals 3.9.1 Terminal Connecting to LAT Services 3.9.2 Terminal Connecting to Internet Resources 3.9.3 Terminal Connecting to One LAT Service (Dedicated Service) 3.9.4 Terminal Connecting to One Internet Host (Dedicated Service) 3.9.5 Terminal Connecting to Simultaneous LAT Sessions Using TD/SMP 3.9.6 Terminal Connecting to Simultaneous Telnet Sessions Using TD/SMP 3.10 Setting Up Characteristics for Printers 3.10.1 Printer Configured as an Unannounced LAT Service 3.10.2 Printer Configured as an Announced LAT Service 3.10.3 Printer Configured for Access Through a Telnet Listener 3.10.4 Printer Configured for LAT and Internet Access 3.10.5 Setting Up a LAT Remote Print Queue on an OpenVMS Host 3.10.6 Set Up a LAT Remote Print Queue on an ULTRIX System 3.10.7 Setting Up an Internet Remote Print Queue on an ULTRIX System 3.11 Setting Up Characteristics for Personal Computers 3.11.1 Personal Computer Configured as a LAT Service 3.11.2 Personal Computer Configured for Access Through a Telnet Listener 3.11.3 Personal Computer Configured as a LAT Service and in Terminal Emulation Mode 3.11.4 Personal Computer Configured in Terminal Emulation Mode and for Access Through a Telnet Listener 3.12 Setting Up Characteristics for Computers 3.12.1 Computer Configured as a LAT Service 3.12.2 Computer Configured for Access Through a Telnet Listener 4 Server Management 4.1 Security 4.1.1 Setting the Privileged Password 4.1.2 Login Password 4.1.3 Maintenance Password 4.1.4 Lock Passwords 4.1.5 Service Passwords 4.1.6 Forgotten Passwords 4.2 General Server Characteristics and Limits 4.2.1 Contact Name and Server Location 4.2.2 Broadcast 4.2.3 Heartbeat 4.2.4 Inactivity Timer 4.2.5 Settable Prompt 4.2.6 Session Limits 4.2.6.1 Port Session Limit 4.2.6.2 Server Session Limit 4.2.6.3 Gateway Session Limits 4.2.7 User Limit 4.2.8 Connection Queue Limit 4.3 LAT Network Characteristics 4.3.1 Server Name 4.3.2 Server Number 4.3.3 Server Identification 4.3.4 Multicasts 4.3.5 Circuit Timer 4.3.6 Keepalive Timer 4.3.7 Retransmit Limit 4.3.8 Node Limit 4.3.9 Service Groups 4.4 Internet Characteristics 4.4.1 Internet Subnet Mask and Internet Address 4.4.2 Domain Name Service 4.4.2.1 DOMAIN 4.4.2.2 TIME LIMIT 4.4.2.3 RETRY LIMIT 4.4.2.4 HOST LIMIT 4.4.2.5 MODE 4.4.3 Commonly-Used Internet Hosts 4.4.4 Internet Nameservers 4.4.5 Internet Gateway Addresses 4.4.6 Internet ARP Entries 4.4.7 Commonly Used Terminal Types 4.5 Configuring for SNMP Access 4.5.1 Configuring the MUXserver 4.5.1.1 Enabling and Disabling SNMP 4.5.1.2 Configuring Community Names 4.5.1.3 Configuring Community Names to Send Trap Messages 4.5.1.4 Verifying Configured TRAPs 4.5.1.5 Removing and Modifying Communities 4.5.2 Configuring the Internet Host 4.5.3 Accessing Information with SNMP 4.5.3.1 Permanent and Operational Databases 4.5.3.2 Access to DECmux Information 4.5.3.3 Implementation of Counters 4.5.4 Supported MIB Variables 4.6 Maintenance Characteristics 4.6.1 Software Dump 4.6.2 Software File Name 4.7 Initializing the MUXserver 4.7.1 Preparing for Network Initialization 4.7.1.1 Minimizing Disruption to Users 4.7.1.2 Warning Users 4.7.2 Network Initialization with the INITIALIZE Command 4.7.3 Network Initialization with the CRASH Command 4.7.4 Initialization using Power-Up 4.7.5 Initialization using the RESET/DUMP Button 4.7.6 Initialization with the LOAD Command 4.7.7 Initialization Using the TRIGGER Command 4.7.8 Monitoring Initialization 5 Synchronous Links and Remote Stations 5.1 Station Management 5.1.1 Using the ATTACH Command 5.1.2 Station Name 5.1.3 Station Identification 5.1.4 Station Console 5.1.5 Background Ports 5.1.6 Permanent Ports 5.2 Link Characteristics 5.2.1 Link State 5.2.2 Link Speed 5.2.3 Interface 5.2.4 Retransmit Timer 5.2.5 Station Address 5.2.6 Frame Limit 5.2.7 Disconnect Delay 5.2.8 Idle Delay 5.3 Initializing Links and Stations 5.4 Link Configuration Guidelines 5.4.1 Estimating Link Speed Requirements 5.4.2 Interface Specific Guidelines 5.4.2.1 A Direct (Null Modem or RS-422) Link 5.4.2.2 A V.24/EIA-232-D Link 5.4.2.3 A V.35 Link 5.4.2.4 An X.21 Data Leads Only Link 5.4.2.5 An RS-449 (V.36) Link 5.4.3 Performance Considerations 6 Setting Up Ports for Terminals and Similar Devices 6.1 Specifying How Users Access the MUXserver Network 6.1.1 Password 6.1.2 Security 6.1.3 Username 6.1.4 Port Name 6.2 Specifying User Access to Network Resources 6.2.1 Access 6.2.2 Protocols 6.2.3 Authorized LAT Groups 6.2.4 Limited View 6.2.5 Specifying Session Limits 6.2.6 Connecting Ports to Network Resources 6.2.7 Dedicated Service 6.2.7.1 LAT Protocol 6.2.7.2 Telnet Protocol 6.2.8 Preferred Service 6.2.8.1 LAT Protocol 6.2.8.2 Telnet Protocol 6.2.9 Autoconnect 6.2.10 Automatic Failover 6.2.11 Autoprompt 6.3 Matching Port and Device Characteristics 6.3.1 Autobaud 6.3.2 Character Size 6.3.3 Input and Output Speed 6.3.4 Alternate Speed 6.3.5 Parity 6.3.6 Type 6.3.7 Flow Control 6.3.7.1 XON and XOFF 6.3.7.2 DSR and DTR 6.3.7.3 CTS and RTS 6.3.7.4 No Flow Control 6.3.8 Flow Control Direction 6.3.9 Modem Control 6.3.9.1 Establishing a Connection 6.3.9.2 Responding to Momentary Loss of CTS 6.3.9.3 Disconnecting 6.3.10 DTR Wait 6.3.11 Dialup 6.4 Specifying Automatic Logout Characteristics 6.4.1 DSR Logout 6.4.2 Inactivity Logout 6.5 Setting Up Keys to Switch Between Sessions and Modes 6.5.1 Forward and Backward Switch Keys 6.5.2 Local Switch 6.5.3 Break 6.6 Specifying LAT Session Transparency 6.7 Specifying the Telnet Client Session Profile 6.8 Specifying Individual Telnet Client Session Characteristics 6.8.1 Echo Characteristics 6.8.2 Binary 6.8.3 Character Size 6.8.4 Mapping Keyboard Characters to Telnet Functions 6.8.5 Autoflush 6.8.6 Autosynch 6.8.7 Newline Characteristics 6.8.8 Data Forwarding 6.8.9 Flow Control 6.8.10 Switch Character 6.9 Session Management Terminals 6.10 Specifying if Users Receive Network Messages 6.10.1 Port Broadcast 6.10.2 Loss Notification 6.10.3 Message Codes 6.10.4 Verification 6.11 Specifying if Port Characteristics Can Be Modified Remotely 6.12 Example Configurations 6.12.1 A Terminal Connecting to Many LAT Services 6.12.2 A Terminal Connecting to Many Internet Hosts 6.12.3 A Session Management (TD/SMP) Terminal 6.12.4 A Terminal Using a Dedicated Service 6.12.5 A Terminal Using DSR/DTR Flow Control 6.12.6 A Dial-In Modem 6.12.7 A Multispeed Dial-In Modem 6.12.8 Notes to Tables 6-3 to 6-9 7 Setting Up Ports for Printers, Computers and Similar Devices 7.1 Specifying Access to the Network Port 7.1.1 Access 7.1.2 Interrupts 7.1.3 DSR Logout 7.1.4 Inactivity Logout 7.1.5 LAT Groups 7.1.6 Other Characteristics Relevant to Login Users 7.2 Matching Port and Device Characteristics 7.2.1 Autobaud 7.2.2 Signal Check 7.2.3 DTR Wait 7.2.4 Ring 7.2.5 Alternate Speed 7.3 Local Connection Queue 7.3.1 Overview of the Connection Queue 7.3.2 Managing the Queue Limit 7.3.3 Removing Entries from the Queue 7.4 Arranging Access from the LAT Network 7.4.1 Server Characteristics Affecting LAT Access 7.4.2 Access Using a Port Name 7.4.3 Access Using a Local Service 7.4.3.1 Identification 7.4.3.2 Connections 7.4.3.3 Queue 7.4.3.4 Service Password 7.4.3.5 Ports 7.4.3.6 Deleting Local Services 7.4.4 LAT Remote Modification of Port Characteristics 7.4.5 Verifying the Service 7.4.6 LAT Data Transparency 7.5 Arranging Access from the Internet Network 7.5.1 Telnet Listener Port Characteristics 7.5.1.1 Identification 7.5.1.2 Connections 7.5.1.3 Password 7.5.1.4 Ports 7.5.2 LAT Groups 7.5.3 TELNET SERVER Characteristics 7.5.3.1 Mapping Event Indications to Characters 7.5.3.2 Specifying New Line Characteristics 7.5.3.3 Specifying Character Size 7.6 Example Configurations 7.6.1 A Printer to be Accessed by LAT and/or Telnet 7.6.2 A Printer Using DSR/DTR Flow Control 7.6.3 A Printer/Terminal 7.6.4 A Dial-Out Modem 7.6.5 A Dial-In/Dial-Out Modem 7.6.6 Notes to Tables 7-1 to 7-5 8 Gateway Facilities 8.1 Setting up a LAT to Telnet Gateway 8.2 Setting up a Telnet to LAT Gateway 8.3 LAT to Telnet Session Characteristics 8.3.1 Session Transparency 8.3.2 Port Characteristics 8.3.3 Access Control 8.4 Limiting Gateway Sessions 9 Network Monitoring 9.1 Overview of Display Commands 9.2 Server and LAT operation 9.2.1 Server Characteristics 9.2.2 Server Counters 9.2.3 Server Status 9.2.4 Server Summary 9.3 LAT Services and Nodes 9.3.1 LAT Node Information 9.3.1.1 LAT Node Status Display 9.3.1.2 LAT Node Counters Display 9.3.1.3 LAT Node Summary Display 9.3.2 LAT Services Information 9.3.2.1 Service Characteristics 9.3.2.2 Service Status 9.3.2.3 Services Summary 9.3.3 Partial Name Matching 9.4 Internet Operation 9.4.1 Internet Address and Subnet Mask 9.4.2 Internet Gateways 9.4.3 Internet Hosts 9.4.4 Internet ARP Entries 9.4.5 Internet Name Resolution 9.4.5.1 Name Resolution Characteristics 9.4.5.2 Name Resolution Counters 9.4.6 Internet Counters 9.4.7 Telnet Terminal Types 9.4.8 Telnet Listener Ports 9.5 Connection Queue Entries 9.6 Ports 9.6.1 Port Characteristics 9.6.2 Telnet Client Characteristics 9.6.3 Telnet Server Characteristics 9.6.4 Port Counters 9.6.5 Port Status 9.6.6 Port Summary 9.7 Users 9.8 Sessions 9.8.1 Session Summary 9.8.2 Session Characteristics 9.8.3 Session Status 9.9 Synchronous Links 9.9.1 Link Characteristics Display 9.9.2 Link Counters Display 9.9.3 Link Status Display 9.9.4 Link Summary Display 9.10 Remote Stations 9.10.1 Station Characteristics Display 9.10.2 Station Summary Display 9.11 SNMP Details 9.11.1 System Characteristics Display 9.11.2 System Characteristics Display 9.11.2.1 SNMP STATUS 9.11.2.2 SHOW SNMP CHARACTERISTICS 9.11.2.3 SHOW SNMP COUNTERS 10 Network Troubleshooting 10.1 Problems Prior to Operational Software Running Correctly 10.1.1 Review of Operation 10.1.2 Instances of Problems 10.1.2.1 Power Supply, Cables and Circuit Breaker 10.1.2.2 Self Test Failure 10.1.2.3 Downline Load Failure 10.1.2.4 Console Port Problems 10.1.2.5 Non Volatile Memory Reset 10.2 Problems with LAN Communications 10.2.1 Review of Operation 10.2.2 Instances of LAN Communications Problems 10.2.2.1 LAN Communication Ceases 10.2.2.2 Abnormal LAN Error Counters 10.2.2.3 Ethernet Heartbeat Error 10.2.3 TEST LOOP Command 10.3 Problems with LAT Operations 10.3.1 Review of Operations 10.3.2 Instances of LAT Problems 10.3.2.1 Unable to Locate LAT Service 10.3.2.2 Service Not Available 10.3.2.3 Connection Timeout 10.3.2.4 LAT Protocol Problems 10.3.2.5 Unexpected Node 10.3.2.6 File Transfer Failure 10.3.2.7 Local Service Not Visible 10.3.2.8 Local Service Connections Denied 10.3.2.9 No Data Transfer to Local Service 10.3.2.10 Host Unable to Modify Device 10.3.3 TEST SERVICE Command 10.4 Problems with Internet Operations 10.4.1 Overview of Operation 10.4.2 Instances of Internet Problems 10.4.2.1 Telnet Connection Failure 10.4.2.2 Telnet Connection Terminated 10.4.2.3 Keyboard Problems with Telnet Connections 10.4.2.4 Telnet Characters Not Displayed 10.4.2.5 Telnet Session Hung 10.4.2.6 PC File Transfer Failure 10.4.2.7 Connection to Telnet Listener Port Refused or Terminated 10.4.2.8 Telnet Printer Newline Incorrect 10.4.3 TEST ICMP Command 10.5 Problems with Synchronous Links and Remote Stations 10.5.1 Overview of Operation 10.5.2 Instances of Link and Station Problems 10.5.2.1 Remote Station Power 10.5.2.2 Self Test Failure 10.5.2.3 Permanent Parameters Errors 10.5.2.4 Communication Failure Between DECmux 300 and MUXserver 10.5.2.5 DECmux 300's Synchronous Link Ready LED is OFF 10.5.2.6 DECmux 300's Synchronous Link On-Line LED is OFF 10.5.2.7 Link Status Not RUNNING 10.5.2.8 Address Conflict 10.5.2.9 No Interface Cable, or Interface Cable or Speed Not Recognized 10.5.2.10 Intermittent Link Failure or Abnormal Link Counters 10.5.3 TEST LINK and TEST STATION Commands 10.5.3.1 On-line Link Tests 10.5.3.2 Station Tests 10.5.3.3 Off-line Link Tests 10.6 Problems with Asynchronous Ports and their Users 10.6.1 Overview of Operation 10.6.2 Instances of Port and User Problems 10.6.2.1 Non Volatile Memory Reset 10.6.2.2 No Response at an Interactive Device 10.6.2.3 Meaningless Characters Appearing at Interactive Device 10.6.2.4 Command Recall and Command Line Editing Not Working 10.6.2.5 Printer Produces No Output 10.6.2.6 Meaningless Characters Appear on a Printer 10.6.2.7 Character Lost at Interactive Device or Printer 10.6.2.8 No Communication with Non-LAT/Telnet Host 10.6.2.9 Dial-In Modem, Does Not Answer 10.6.2.10 No Communications on Dial-In Modem 10.6.2.11 No Communications With Dial-Out Modem 10.6.2.12 Dial-Out Modem Unable to Connect 10.6.2.13 Logging Out Users 10.6.2.14 Disconnecting a Hung Session 10.6.2.15 Locked Port 10.6.3 TEST PORT Command 10.6.3.1 Display Port Tests 10.6.3.2 Loopback Port Tests 10.6.4 Problems with SNMP Operations 10.6.4.1 Problems Accessing the MUXserver 10.6.4.1.1 Checking that the Network is Configured Correctly 10.6.4.1.2 Checking Communications Established to Remote Internet Host 10.6.4.1.3 Checking Whether SNMP is Enabled 10.6.4.1.4 Checking that Community Names are correctly set 10.6.4.1.5 Checking that Operations are Enabled for the Community Name 10.6.4.2 MUXserver Not Responding with the Requested MIB Information 10.6.4.3 MUXserver Not Sending TRAP Messages 10.6.4.4 Authentication Failure TRAP Messages Reported 10.6.4.5 Authentication Failure TRAP Messages Not Reported 10.6.4.6 SNMP Reporting Not Consistent with the MIB 10.6.4.7 SNMP Reporting Not Consistent with the MUXserver 10.7 Crashed or Stopped MUXserver 10.7.1 Review of Operation 10.7.2 Instances of Problems with Crashed, Stopped MUXserver 10.7.2.1 Fatal Bugcheck 10.7.2.2 The MUXserver Resets 10.7.2.3 Frozen 7-Segment Display (MUXserver 320 and 380 only) 10.8 Digital Service Guidelines 10.8.1 Service Options 10.8.1.1 Digital On-Site Service 10.8.1.2 DECmailer 10.8.1.3 Installation Service 10.8.1.4 Software Product Service Agreements 10.8.1.5 Training 10.8.2 When Contacting Digital Equipment Corporation 10.8.3 Repackaging a MUXserver/DECmux 300 for Shipping 10.8.4 Forwarding Up-line Dump Data A MUXserver Commands A.1 Command Summary A.2 Common Variables B Status and Error Messages B.1 Local Messages B.2 Firmware Messages B.3 DECmux 300 Messages C Guide to MIB Implementation C.1 The MIB-II C.1.1 System Group C.1.2 Interfaces Group C.1.3 Address Translation Group C.1.4 IP Group C.1.4.1 IP Address Table C.1.4.2 IP Routing Table C.1.4.3 IP Address Translation table C.1.5 ICMP Group C.1.6 TCP Group C.1.7 TCP Connection Table C.1.8 UDP Group C.1.8.1 UDP Listener Table C.1.9 EGP Group C.1.10 SNMP Group C.2 The RS-232-Like MIB C.2.1 RS-232 Port Table C.2.2 Asynchronous Port Table C.2.3 Synchronous Port Table C.2.4 Input Signal Table C.2.5 Output Signal Table C.3 The Character MIB C.3.1 Character Port Table C.3.2 Character Session Table C.4 The LAPB MIB C.4.1 LAPB Administration Table C.4.2 LAPB Operational Table C.4.3 LAPB Flow Table C.5 The DECmux MIB C.5.1 DECmux Table C.5.2 DECmux TRAPs Glossary FIGURES 1-1 Local Area Network Principles 1-2 Generalised MUXserver User Architecture 1-3 MUXserver Network Configuration Principles 1-4 Typical Network Configuration 1 1-5 Typical Network Configuration 2 1-6 Typical Network Configuration 3 1-7 Typical Network Configuration 4 1-8 MUXserver Network Installation Activities 1-9 Example of Completed Network Identification Card 2-1 MUXserver 320 Indicators and Controls 2-2 MUXserver 380 Indicators and Controls 2-3 MUXserver 90 Indicators and Controls 2-4 DECmux 300 Indicators 2-5 Remote Management Console on an Ethernet 4-1 Sample SNMP Configuration 4-2 Server Manager Enters LOAD Command at HOST_1 4-3 Server JUNIOR Asks HOST_1 for a Downline Load 4-4 HOST_1 Loads Server JUNIOR 4-5 Server Manager Enters TRIGGER Command at HOST_1 4-6 Server JUNIOR Sends Multicast Message 4-7 First Load Host to Respond, HOST_3, Loads Server JUNIOR 5-1 Example Network 7-1 Network Processing Two Requests from Hosts for Same Service 7-2 Network Processing the Queue After Service/Port Becomes Available 10-1 Network Troubleshooting Structure 10-2 Direct Loop Test 10-3 Transmit Loop Test 10-4 Receive Loop Test 10-5 Full Loop Test 10-6 Default LAT Loopback 10-7 Internal Port Loopback 10-8 External Port Loopback 10-9 On-Line Tests 10-10 Station Tests 10-11 Internal Loopback Tests 10-12 External Loopback Tests with No Modem 10-13 External Loopback Tests with Local Modem 10-14 External Loopback Tests with Remote Modem 10-15 External Loopback Tests with Remote Station 10-16 Internal Port Loopback Tests 10-17 External Port Loopback Tests TABLES 1-1 MUXserver Databases 2-1 7-Segment Display Codes 2-2 MUXserver 90 Status LED Indicator Codes 2-3 DECmux 300 Status LED Indications 2-4 Remote Console Terminal Characteristics 3-1 Default Server Characteristics 3-2 Default Link Characteristics 3-3 Default Station Characteristics 3-4 Default Port Characteristics 3-5 Default Service Characteristics 3-6 Default Telnet Listener Characteristics 4-1 SET and GET/GETNEXT operations 4-2 Implemented MIB Variables 4-3 Methods of Initiating a Downline Load 5-1 Link Frame Size Limits 5-2 Example of User Requirements at Location C 5-3 Example User Requirements at Location B 6-1 Telnet Client Session Characteristics Assigned to Profiles 6-2 Local Mode Session Management Restrictions 6-3 Port Settings for a LAT User's Terminal 6-4 Port Settings for a Telnet User's Terminal 6-5 Port Settings for a Session Management Terminal 6-6 Port Settings for a Dedicated Service Terminal 6-7 Port Settings for a DSR/DTR Terminal 6-8 Port Settings for a Dial-In Modem 6-9 Port Settings for a Multispeed Modem 7-1 Port Settings for a Printer 7-2 Port Settings for a Printer Using DSR/DTR Flow Control 7-3 Port Settings for a Printer/Terminal 7-4 Port Settings for a Dial-Out Modem 7-5 Port Settings for a Dial-In/Dial-Out Modem 9-1 Display Command Verbs 9-2 General Server Characteristics 9-3 Server Ethernet Counters 9-4 MUXserver LAT Counters 9-5 Server Status General and Error Descriptions 9-6 Network Status Operational Headings 9-7 Network Status Resources 9-8 Server Summary Display Fields 9-9 Node Status Display Screen 9-10 Node Counters Display Screen 9-11 Node Summary Display Screen 9-12 Services Characteristics 9-13 Services Status 9-14 Services Summary 9-15 Internet Name Resolution Characteristics 9-16 Internet Name Resolution Counters 9-17 Internet Counters 9-18 Queue Headings 9-19 Port Characteristics 9-20 Port Telnet Client Characteristics 9-21 Port Telnet Server Characteristics 9-22 Port Counters 9-23 Port Status 9-24 Port Summary 9-25 User Display Information 9-26 Session (Summary) Display 9-27 Telnet Session Status 9-28 Synchronous Link Characteristics 9-29 Synchronous Link Counters 9-30 Synchronous Link Status 9-31 Synchronous Link Summary Characteristics 9-32 Station Characteristics 9-33 Synchronous Station Summary Characteristics 9-34 SNMP Counters 10-1 On-Line Link Test Counters 10-2 Off-Line Link Test Counters A-1 MUXserver Command Summary A-2 MUXserver Port Characteristics Summary A-3 Common Variables B-1 Local Message Types B-2 Connection Failure Messages B-3 Firmware Message Types C-1 System Group C-2 Interfaces Group C-3 Address Translation Group C-4 IP Group Atomics C-5 IP Group Address Table C-6 IP Group Routing Table C-7 IP Group Address Translation (Net to Media) Table C-8 ICMP Atomics C-9 TCP Group Atomics C-10 TCP Group Connection Table C-11 UDP Group Atomics C-12 UDP Group Listener Table C-13 SNMP Group C-14 Signal Values, Descriptions C-15 RS-232-like Port Table C-16 RS-232-like Asynchronous Port Table C-17 RS-232-like Synchronous Port Table C-18 RS-232-like Input Signal Table C-19 RS-232-like Output Signal Table C-20 Character Port Table C-21 Character Session Table C-22 LAPB Administration Table C-23 LAPB Operational Table C-24 LAPB Flow Table C-25 DECmux Table