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IBM SC30-3681-08 PPP Data Link Layer Frame Structure

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PPP currently supports the following control protocols:

vAppleTalkControl Protocol (ATCP)

vDECnet Protocol Control Protocol (DNCP)

vBanyan VINES Control Protocol (BVCP)

vBridging protocols (BCP,NBCP, and NBFCP)

vInternet Protocol Control Protocol (IPCP)

vInternet Protocol Version 6 Control Protocol (IPv6CP)

vIPX Control Protocol (IPXCP)

vAPPN HPR Control Protocol (APPN HPRCP)

vAPPN ISR Control Protocol (APPN ISRCP)

vOSI Control Protocol (OSICP)

Each end starts by sending LCP packets to conﬁgure and test the data link. After

the link has been established, PPP sends NCP packets to choose and conﬁgure

one or more network layer protocols. After network layer protocols have been

conﬁgured, datagrams from each network layer can be sent over the link. The next

sections explain these concepts in more detail.

PPP Data Link Layer Frame Structure

PPP transmits data frames that have the same structure as High-level Data Link

Control (HDLC) frames. PPP uses a byte-oriented transmission method with a

single-frame format for all data and control exchanges. Figure 27on page 451

illustrates the PPP frame structure and is followed by a detailed description of each

ﬁeld.

Serial Communications Link

Point-to-Point Serial Link

between 2 Hosts

Point-to-Point Serial Links

among several Hosts

Host

Link 1 Link 2

Link3

Figure 26. Examples of Point-to-Point Links

Using PPP

450 MRS V3.2 Software User’s Guide

Contents

Main Page Page Page Contents Part 1. Understanding and Using the Software ................ 1 Part 2. Understanding, Conguring, and Using Base Services .........37 iv Page vi Page Part 3. Understanding, Conguring and Operating Interfaces..........221 viii Page x Page xii Page xiv Page xvi Page xviii Figures Syslog_user_alert Page Tables xxii Notices Page Notice to Users of Online Versions of This Book Page Trademarks Page Preface Who Should Read This Manual Conguration Program About the Software Conguration Program Users Guide for Nways Multiprotocol and Access Services Products, Conventions Used in This Manual IBM 2210 Nways Multiprotocol Router Publications xxx Page IBM 2210 Introduction and Planning Guide IBM 2210 Nways Multiprotocol Router Installation and Initial Conguration IBM 2210 Nways Multiprotocol Router Service and Maintenance Manual Summary of Changes for the IBM 2210 Software Library xxxii dont fragment Summary of Changes Editorial Changes Software Users Summary of Changes xxxiv Page Page Chapter 1. Getting Started IBM 2210 Nways Multiprotocol Router Installation and Initial Conguration Guide Migrating to the Current Release IBM 2210 Nways Multiprotocol Router Service and Maintenance Manual Accessing the Software Using Local and Remote Consoles Local Consoles IBM 2210 Nways Multiprotocol Router Service and Maintenance Manual 4 IBM 2210 Nways Multiprotocol Router Installation and Initial Conguration Guide Remote Consoles Telnet Connections Remote Login Names and Passwords Logging In Remotely or Locally Reloading or Restarting the Router Exiting the Router 6 Discussing the User Interface System Understanding the First-Level User Interface Quick Conguration Process System Security 8 Chapter 2. Using the Software Entering Commands Connecting to a Process Identifying Prompts Getting Help 10 Exiting a Lower Level Environment Getting Back to OPCON intercept character Some Conguration Suggestions Creating a First Conguration Basing a Conguration on an Existing Conguration Basing on an Existing Conguration 12 Conguration Program Users Guide for Nways Multiprotocol and Access Services Products Permanently Updating a Conguration Accessing the Second-Level Processes Accessing the Conguration Process, CONFIG (Talk 6) Entering the CONFIG Process 14 Quick Conguration Process: Restarting or Reloading the Router Accessing the Operating/Monitoring Process, GWCON (Talk 5) Entering the GWCON Command Process Accessing the Third-Level Processes Accessing Network Interface Conguration and Operating Processes Accessing the Network Interface Conguration Process 16 Displaying the Interface Conguration: Conguring the Network Interface: Table2. Network Architecture and the Supported Interfaces Accessing the Network Interface Console Process 18 Monitoring the Network Interface: Accessing Feature Conguration and Operating Processes Accessing the Feature Processes Accessing Protocol Conguration and Operating Processes Entering a Protocol Conguration Process Protocol Conguration and Monitoring Reference Entering a Protocol Operating Process 20 Command History for GWCON and CONFIG Command Line Repeating a Command in the Command History Repeating a Series of Commands in the Command History repeat sequence 22 repeat sequence Starting a Repeat Sequence As Commands Are Entered Starting a Repeat Sequence After All Commands Are Entered Page Chapter 3. The OPCON Process Page Chapter 4. Using OPCON Accessing the OPCON Process OPCON Commands Breakpoint Divert 28 tty1 pid tty# Flush tty# Halt Intercept character Logout Memory 30 Pause (EasyStart only) Reload Restart Status 32 Stop (EasyStart only) Talk Telnet 34 ip-address terminal-type 36 Page Page Chapter 5. The Conguration Process (CONFIG - Talk 6) and Commands What is CONFIG? IBM 2210 Nways Multiprotocol Router Service and Maintenance Manual Using EasyStart 40 Cong-Only Mode Automatic Entry Into Cong-Only Mode Manual Entry Into Cong-Only Mode Quick Conguration 42 Automatic Entry Into Quick Cong Mode Manual Entry Into Quick Cong Mode Exiting from Quick Cong Mode Conguring User Access Administration, Operation, spare interfaces Technical Support Access Conguring Spare Interfaces Restrictions for Spare Interfaces any null 46 Resetting Interfaces Restrictions for Resetting Interfaces 48 Page Page Chapter 6. Conguring and Monitoring the CONFIG Process Entering and Exiting CONFIG CONFIG Commands device_type 52 address-name network-dial-address network-subdial-address 54 Page Using and Conguring Features . Disable user Allows you to disable a user-prole. Valid values: yes, no Default value: no Example with ECP encryption: 56 tunnel-name network-dial-address 58 network-dial-address Boot NULL 60 Page 62 intfc# intfc#range 64 Users Environment Environment Commands 66 List: Hysteresis Event Feature feature-short-name feature# 68 device devicerange 70 Page Network Patch 72 Page Conguration and Monitoring Reference Volume 1 new value prot_name prot# Performance Protocol 74 Qcong sysContact type interface# interface# # of seconds 76 #_of_min interface# low_ #_of_receive_buffers settings sysLocation Low_#_of_receive_buffers 78 interface# max# Time IP_address minutes year month date hour minute second Unpatch variable_name 80 Update Page Page Chapter 7. The Boot CONFIG Process What is Boot CONFIG? Conguring Booting Using a Device as a Boot Server How the BOOTP Forwarding Process Works 84 BOOTP relay agent BOOTP client A Device as a BOOTP Relay Agent Enabling/Disabling BOOTP Forwarding bootpd This parameter is not commonly used. Conguring a BOOTP Server Using the Trivial File Transfer Protocol (TFTP) server 86 copy client Accessing Conguration Files From a Remote Host or Router image Filename Denitions for IBD IBD Considerations When Transferring a File Validating the Conguration Load 88 Magic Number Loading an Image at a Specic Time Conguring Dumping Add address. Add a dump entry. Enable dumping. Installing Software/Code 90 Page Page Chapter 8. Conguring Boot CONFIG Entering and Exiting Boot CONFIG Boot CONFIG Commands 94 Page 96 Page Copy host-ip-address 98 destination lename Source lename host-ip-address Describe 100 Erase bank-number 102 Page Load 104 Store Timedload YYYYMMDDHHMM 106 MM HH TFTP CONFIG address-remote-server path/lename 108 to from to from Page Page Chapter 9. Boot Options IBM 2210 Nways Multiprotocol Router Installation and Initial Conguration Guide Booting From the Integrated Boot Device Using a Console Terminal BOOTP Using a Console Terminal Unsuccessful BOOTP 112 Booting from a TFTP host server using a console terminal Boot Options Available Accessing the Boot Options Table14. Boot Options Boot Option Prompts 114 Table15. Boot Option Prompts B (Boot) BC (Boot in Cong-only Mode) 116 BM (Boot using console queries) 118 BN (Boot, But Do Not Run, Using Console Queries) BP (Boot using BOOTP) Unsuccessful BOOTP D (Dump using stored conguration) 120 DIAG (Execute IBM Extended Diagnostic Program) DM (Dump using Console Queries) UB (Display TFTP Boot Conguration) UC (Display Hardware Conguration) UG (Go execute at address in RAM) 122 LC (Load Conguration Memory) vIf you enter Token Ring, you will see the following: vIf you enter Ethernet, you see the following: vIf you enter WAN, you see the following: CC (Clear Conguration Memory) ZB (ZModem Boot) 124 ZC (ZModem conguration memory load) Conguring the 2210 Page Chapter 10. The Operating/Monitoring Process (GWCON - Talk 5) and Commands What is GWCON? Entering and Exiting GWCON GWCON Commands Table16. GWCON Command Summary Activate 128 activate Boot Use the boot command to display boot information for this device. Buffer Curr Low Alloc x Total Buffer Sizes: Conguration 130 Page Using and Conguring Features 132 no Environment Error 134 Event Fault Feature feature# feature-short-name Interface Log 136 octal_# Memory Free Low Fair Network 138 Performance Protocol prot# Queue 140 Reset Test complete 142 no Uptime Page Page Chapter 11. The Messaging (MONITR - Talk 2) Process IBM Nways Event Logging System Messages What is Messaging (MONITR)? Commands Affecting Messaging Entering and Exiting the Messaging (MONITR) Process Page Chapter 12. Using the Event Logging System (ELS) What is ELS? IBM Nways Event Logging Entering and Exiting the ELS Conguration Environment Event Logging Concepts 148 Causes of Events Interpreting a Message Subsystem Logging level individual subsystem Message Text Message Text 150 error_code network Using ELS IBM Nways Event Logging System Messages Guide Managing ELS Message Rotation local_le_name router_ip_addr Capturing ELS Output Using a Telnet Connection on a UNIX Host local_le_name router_ip_addr Conguring ELS So Event Messages Are Sent In SNMP Traps Using ELS to Troubleshoot a Problem Event Logging ELS Example 1 ELS Example 2 ELS Example 3 154 Protocol Conguration and Monitoring Reference Using and Conguring ELS Remote Logging Syslog Facility and Level syslog daemon Remote Workstation Conguration pathname 156 Conguring the 2210 for Remote Logging Figure 6. syslog.conf Conguration File source-ip-addr 158 Remote Logging Output Figure 8. Conguring Subsystems and Events for Remote Logging syslog_user_alert 160 syslog_user_alert Figure 12. Example of Setting Up a StaticARP Entry Additional Considerations ELS Messages Containing IP Addresses 162 Duplicate Logging syslog.conf Using ELS Message Buffering 164 Page Page Chapter 13. Conguring and Monitoring the Event Logging System (ELS) Accessing the ELS Conguration Environment ELS Conguration Commands group_name subsystem.event_number Advanced 168 Default Display Filter 170 subsystem Nodisplay Noremote 172 Page Notrap 174 Remote subsystem.event# syslog_facility syslog_level 176 level facility 178 off/on event id 180 Trap ELS Net Filter Conguration Commands Create queue 182 net#_end net#_start Delete Disable Enable lter# lter#. ELS Message Buffering Conguration Commands Log 184 Nolog Kbytes 186 Entering and Exiting the ELS Operating Environment ELS Monitoring Commands Table22. ELS Monitoring Command Summary Advanced advanced 188 Display Files host_IP_addr lename Filter 190 ELS Messages Nodisplay 192 Noremote subsystemname [logging-level] logging-level Notrap 194 subsystemname [logging-level] logging-level Packet Trace Remote 196 subsystem.name message_level syslog_facility syslog_level Restore Retrieve Save 198 level facility 200 event id off/on 202 last_event_numbe Trap View 204 hexstring Packet-trace Monitoring Commands Off On Reset Subsystems 206 Trace-Status View ELS Net Filter Monitoring Commands Create 208 Delete Disable Enable ELS Message Buffering Monitoring Commands Table25 describes the commands available at the ELS Config Advanced> prompt. Table25. ELS Message Buffering Monitoring Commands Flush flush buffer Nolog Mbytes 212 Tftp dest_ip_address dest_lename dest_lename, dest_ip_address dest_lename. 214 Chapter 14. Conguring and Monitoring Performance Performance Overview Performance Reporting Accuracy Accessing the Performance Conguration Environment Performance Conguration Commands 216 Accessing the Performance Monitoring Environment Performance Monitoring Commands Performance Conguration Commands (Talk 6) Report Performance Monitoring Commands (Talk5) 218 Page Page Page Page Chapter 15. Getting Started with Network Interfaces Before You Continue Network Interfaces and the GWCON Interface Command Accessing Network Interface Conguration and Console Processes Accessing Link Layer Protocol Conguration and Console Processes Dening Spare Interfaces 224 dynamic reconguration Getting Started with Network Interfaces Chapter 16. Conguring IEEE 802.5 Token-Ring Network Interfaces Accessing the Token-Ring Interface Conguration Process Token-Ring Conguration Commands Packet-Size 226 Source-routing Conguring Token-Ring Network Interfaces Speed speed-value 228 Token-Ring Interface Monitoring Commands Dump Conguring Token-Ring Network Interfaces Token-Ring Interfaces and the GWCON Interface Command Statistics Displayed for 802.5 Token-Ring Interfaces 230 <net#> Page 232 Page Page Chapter 17. Conguring and Monitoring LLC Interfaces LLC Conguration Commands 236 Page 238 LLC Monitoring Commands Clear-Counters 240 Page 242 Page 244 Page Page Chapter 18. Using the Ethernet Network Interface Displaying Ethernet Statistics through the Interface Command IBM Nways Using Ethernet Network Interfaces 248 Using Ethernet Network Interfaces Page Chapter 19. Conguring and Monitoring the Ethernet Network Accessing the Ethernet Interface Conguration Process Ethernet Conguration Commands Connector-Type IP-Encapsulation 252 Physical-Address Ethernet Conguration Commands (Talk6) Accessing the Ethernet Interface Operating Process Ethernet Interface Monitoring Commands Collisions Ethernet Conguration Commands (Talk 6) collisions Ethernet Interface Monitoring Commands (Talk5) 254 Chapter 20. Overview of LAN Emulation LAN Emulation Over ATM:Version 1.0 Specication LAN Emulation Benets LAN Emulation Components Simple LAN Emulation Network 256 Physical Network Logical Network Addressing in ATM ESI ATM Addresses of LAN Emulation Components 258 Overview of Related ILMI Functions Manual Conguration of the Signaling Version Locating the LECS Using ILMI Overview of the LECS Function 260 larger ANDed ELAN 1 Sample Situations for Use of the LECS Assignment Policies ATM Address Policy 262 Engineering Accounting More Information About TLVs Connecting to the LES 264 Address Registration Address Resolution Connecting to the BUS BUS Functions 266 Establishing Data Direct VCCs Overview of Extensions for LAN Emulation Broadcast Manager BCM Support for IP BCM Support for IPX 268 BCM IPX Server Farm Threshold BCM Support for NetBIOS BCM Support for Source Route Bridging adapter LAN Emulation Reliability 270 LAN Emulation Security Address Screening Key Conguration Parameters for LAN Emulation 272 Chapter 21. Using ATM ATM and LAN Emulation How to Enter Addresses ATM-LLC Multiplexing ATM Virtual Interface Concepts 274 Advantages of Using ATM Virtual Interfaces Conguring ATMand LAN Emulation Disadvantages of using ATM Virtual Interfaces on demand ATM Virtual Interface Conguration Concepts Page Chapter 22. Conguring and Monitoring ATM Accessing the ATM Interface Conguration Process qcong ATM Conguration Commands This section summarizes the ATMconguration commands. Enter the commands at the ATM config> prompt. 278 Table35. ATM Conguration Command Summary ATM Interface Conguration Commands Page QoS Conguration speed 280 Page 282 Page 284 Accessing the Virtual ATM Interface Conguration Process ATM Virtual Interface Conguration Commands Accessing the ATM Monitoring Process ATM Monitoring Commands 286 ATMVirtual Interface Conguration Commands (Talk 6) Interface ATM-LLC ATM Interface Monitoring Commands (ATM INTERFACE+ Prompt) ATM Monitoring Commands (Talk5) ATMInterface Monitoring Commands (Talk 5) 288 Wrap ATM Interface Monitoring Commands (Talk5) ATM-LLC Monitoring Commands ATM Virtual Interface Monitoring Commands 290 ATMInterface Monitoring Commands (Talk 5) Chapter 23. Using LAN Emulation Clients LAN Emulation Client Overview Page Chapter 24. Conguring and Monitoring LAN Emulation Clients Conguring LAN Emulation Clients Cong LE Client Cong> 294 Conguring an ATM Forum-Compliant LE Client ARP Conguration Add Cong 296 arp-entry-number Set: RIF-Timer (for Token-Ring Forum-compliant LEC only) Source-Routing (for Token-Ring Forum-Compliant LEC only) IP-Encapsulation (for Ethernet ATM Forum-Compliant LEC only) QoS 298 Page 300 Page initial-control-timeout 302 multiplier-control- control-timeout Page 304 Page recong-delay-max 306 recong-delay-max recong-delay-min Accessing the LEC Monitoring Environment interface 308 LEC Monitoring Commands 310 conguration Lists the LEC conguration. For Ethernet: For TokenRing: Chapter24. Conguring and Monitoring LAN Emulation Clients 311 312 statistics Lists LEC statistics. VCC table Lists VCC table. MIB 314 Page QoS Information 316 Chapter 25. Conguring Serial Line Interfaces Clocking and Cable Type Network Interfaces and the GWCON Interface Command Conguring Serial Line Interfaces 318 Chapter 26. Using the X.25 Network Interface Basic Conguration Procedures x.25-node-address protocol_name national enable Setting the National Personality Understanding the X.25 Defaults 320 set, national set Table46. Set Command (continued) Table47. National Enable Parameters Table48. National Set Parameters X.25 Support Over ISDN BRI D-Channel (X.31) Null Encapsulation Limitations Conguration Changes Conguring Null Encapsulation and Closed User Groups (CUG) Page Understanding Closed User Groups closed user group (CUG) 324 bilateral closed user group (BCUG) Bilateral Closed User Groups Conguring X.25 Closed User Groups Page Chapter 27. Conguring and Monitoring the X.25 Network X.25 Conguration Commands 328 DCE DTE GTE-Telenet 330 DDN speed-setting inbound two-way outbound value bit-rate off 332 lower-dtr off National Enable 334 National Disable National Set 336 passive active default 338 maximum Default window Page National Restore 340 Page 342 Page 344 Page default packet size 346 Page 348 Page prot-type Prot-type 350 cugs Lists the CUG and BI-CUG numbers for each X.25 interface in this device. 352 X.25 Monitoring Commands 354 Page physical Displays the statistics for the physical level. X.25 Network Interfaces and the GWCON Interface Command 356 Statistics Displayed for X.25 Interfaces Page 358 Page Page Chapter 28. Using XTP The X.25 Transport Protocol Conguration Information Remote routers 362 concentrator router two remote routers DTE Address Wildcards XTP Backup Peer Function Searching for a Remote DTE 364 Connection Request Timer Local XTP XTP and Closed User Groups Conguring XTP 366 Setting the Data Link Conguring the IP Interface one time only Interface 1 Conguring X.25 Interface 2 Software Users Guide 368 Setting the National Personality Dening the IP Address Setting the Internal IP Address Conguring XTP required 370 9. Add an XTP PVC to logically associate the local PVC to Server 1 with the remote DTE 301. Sample Conguration of Remote Routers Remote 1 router Remote 2 router 372 Page Page Chapter 29. Conguring and Monitoring XTP XTP Conguring Commands last 376 Page 378 Page 380 Page XTP Monitoring Commands 382 XTP Monitoring Commands (Talk 5) xtp-status Displays whether XTP is enabled/disabled, and the time specied for the Keepalive Timer. 384 local-dtes Displays all the interfaces congured for XTP. XTP Monitoring Commands (Talk 5) 386 Chapter 30. Using Frame Relay Interfaces Frame Relay Overview Data encryption Data compression Multiplexing protocols. Frame Relay Network 388 Frame Relay Switched Virtual Circuits Frame Relay Interface Initialization Orphan Circuits 390 Conguring PVC States to Affect the Frame Relay Interface State in each group Frame Relay Frame HDLC Flags 392 Data Link Connection Identier (DLCI) Command/Response (C/R) Extended Address Forward Explicit Congestion Notication (FECN) Backward Explicit Congestion Notication (BECN) Discard Eligibility (DE) Frame Forwarding over the Frame Relay Network Protocol Addresses Multicast Emulation and Protocol Broadcast 394 Frame Relay Network Management heartbeat polling keep alive Management Status Reporting Full Status Report Link Integrity Verication Report heartbeat polling Consolidated Link Layer Management (CLLM) Frame Relay Data Rates Committed Information Rate (CIR) Orphan Permanent Virtual Circuit CIR Committed Burst (Bc) Size excess burst (Be) size calculated time (Tc)interval committed burst (Bc) size Line Speed line speed maximum information rate minimum information rate (IR) Minimum Information Rate Variable Information Rate variable information rate Circuit Congestion CIR Monitoring Congestion Monitoring Congestion Notication and Avoidance 400 throttle-transmit-on-fecn XY throttle-transmit-on-fecn notify-fecn-source Ty Bandwidth Reservation over Frame Relay Displaying the Frame Relay Conguration Prompt 402 Frame Relay Basic Conguration Procedure Enabling Frame Relay PVC Management Page Chapter 31. Conguring and Monitoring Frame Relay Interfaces Frame Relay Conguration Commands PVC circuit number 406 Page 408 Page 410 Page 412 Page throttling down 414 throttling down 416 Page 418 Page 420 Page 422 Page 424 Page circuit-name pvc# 426 network down network up 428 physical-interface-link-type data-connection-type bc cir be increment-% decrement-% minimum-IR rate 430 Page Accessing the Frame Relay Monitoring Prompt Frame Relay Monitoring Commands 432 circuit number PVC data link circuit identier (DLCI) name or number 434 time interval 436 Page None 438 Page 440 Page 442 circuit# or name cirvol bcval beval increment-% decrement-% minimum-IR 444 Frame Relay Interfaces and the GWCON Interface Command Statistics Displayed For Frame Relay Interfaces 446 Page Page Chapter 32. Using Point-to-Point Protocol Interfaces PPP Overview PPP Data Link Layer Frame Structure 450 The PPP Link Control Protocol (LCP) 452 LCP Packets Link establishment packets Link maintenance packets Link termination packets Link Establishment Packets 454 Link Termination Packets Link Maintenance Packets PPP Authentication Protocols Password Authentication Protocol (PAP) 456 Challenge-Handshake Authentication Protocol (CHAP) Microsoft PPP CHAP Authentication (MS-CHAP) Shiva Password Authentication Protocol (SPAP) Conguring PPP Authentication Conguring a PPP Interface to Authenticate a Remote Device Conguring a PPP Interface to be Authenticated by a Remote Device 458 Conguring PPP Callback Using AAA with PPP The PPP Network Control Protocols 460 AppleTalk Control Protocol Protocol Conguration and Monitoring Reference Volume 2 Banyan VINES Control Protocol Bridging Protocols Callback Control Protocol IP Control Protocol IPv6 Control Protocol 462 IPX Control Protocol OSI Control Protocol APPN HPR Control Protocol APPN ISR Control Protocol Using and Conguring Virtual Connections Conguring a VC 464 Chapter 33. Conguring and Monitoring Point-to-Point Protocol Interfaces Accessing the PPP Interface Conguration Prompt Point-to-Point Conguration Commands 466 Page 468 [mandatory/optional] [stateless/stateful] Using and Conguring Features 470 Page 472 Page 474 Page Its usage is strongly discouraged list-of-algorithms 476 cable type ag mark 478 options parameters without 480 Page lowercase. 482 Point-to-Point Monitoring Commands 484 item 486 Page 488 Page 490 Page 492 Page 494 Page 496 Page 498 Page 500 Page 502 Page 504 Page Point-to-Point Protocol Interfaces and the GWCON Interface Command 506 Page 508 Chapter 34. Using the Multilink PPP Protocol virtual link MP Considerations 510 Multi-Chassis MP multi-chassis MP. Multi-chassis MP uses rhelm or user-based tunneling (see Using Local or Remote Authentication in ) to establish the MP endpoint destination. See Using Layer 2 Tunneling Protocol (L2TP) in for more information about L2TP. Conguring MP on PPP Serial Links Conguring MP on Layer-2-Tunneling Nets 512 Conguring Multi-Chassis MP username Page Chapter 35. Conguring and Monitoring Multilink PPP Protocol (MP) Accessing the MP Conguration Prompt MP Conguration Commands for Multilink PPP Interfaces Encapsulator 516 Max fragment size bundle 518 Max fragment size bundle Monitoring MP Interface Status Accessing the MP Monitoring Commands Multilink PPP Protocol Monitoring Commands 520 magic number 522 Page Page Chapter 36. Conguring SDLC Relay Add a number. Add a remote port. Add a local port. Accessing the SDLC Relay Conguration Environment SDLC Relay Conguration Commands 526 Page List (for network SRLY) 528 List (for protocol SDLC) 530 Page Accessing the SDLC Relay Monitoring Environment SDLC Relay Monitoring Commands 532 Clear-Port-Statistics interface# primary-or-secondary 534 SDLC Relay Interfaces and the GWCON Interface Command Page Chapter 37. Using SDLC Interfaces Conguring Switched SDLC Call-In Interfaces SDLC Conguration Requirements Using SDLC Interfaces 538 Chapter 38. Conguring and Monitoring SDLC Interfaces Accessing the SDLC Conguration Environment SDLC Conguration Commands 540 Page 542 Page link station name 544 full half Full-duplex Half-duplex half-duplex 546 leading ags inter-frame secondary multipoint point-to-point 548 Accessing the SDLC Monitoring Environment SDLC Monitoring Commands 550 Page link station name 552 Page 554 secondary 556 Test address #frames-to-send frame-size SDLC Interfaces and the GWCON Interface Command Statistics Displayed for SDLC Interfaces 558 Page Page Chapter 39. Using Binary Synchronous Relay (BRLY) BRLY Overview Sample BRLY Conguration 562 Notes: 1. The conguration for group 1 starts at 1. 2. The conguration for group 2 starts at 2. Figure 33. BRLYConguration for Router A (Commands entered at Router A) BRLY Considerations When conguring BRLY,keep the following in mind: Figure 34. BRLYConguration for Router B (Commands entered at Router B) Figure 35. BRLYConguration for Router C (Commands entered at Router C) 564 Page Page Chapter 40. Conguring and Monitoring BSC Relay BSC Relay Conguration Commands 568 Page 570 List (for network BSC) List (for protocol BRLY) 572 Page bps Accessing the BSC Relay Monitoring Environment 574 BSC Relay Monitoring Commands 576 Page BSC Relay Interfaces and the GWCON Interface Command 578 Chapter 41. Using the V.25bis Network Interface Adding V.25bis Addresses Network Dial Address. Address Name. Conguring the V.25bis Interface Optional V.25bis Parameters 580 Page 582 Chapter 42. Conguring and Monitoring the V.25bis Network V.25bis Conguration Commands V.25bisConguration Commands 584 V.25bis Conguration Commands rs232 dte V.25bis V.25bisConguration Commands 586 IBM Nways Event Logging V.25bis Monitoring Commands V.25bis Conguration Commands 588 Page 590 Page V.25bis and the GWCON Commands Statistics for V.25bis Interfaces and Dial Circuits 592 Page 594 Chapter 43. Using the V.34 Network Interface Adding V.34 Addresses Network Dial Address. Address Name. Conguring the V.34 Interface Optional V.34 Parameters 596 Page 598 Chapter 44. Conguring and Monitoring the V.34 Network V.34 Conguration Commands 600 Page # bits per second 602 IBM Nways Event Logging System Messages Guide V.34 Monitoring Commands 604 Page 606 V.34 and the GWCON Commands Statistics for V.34 Interfaces and Dial Circuits 608 Page Page Chapter 45. Using the ISDN Interface ISDN Overview ISDN Adapters and Interfaces Dial Circuits 612 Addressing Oversubscribing and Circuit Contention Cost Control Over Demand Circuits Caller ID and LIDS ISDN Cause Codes 614 ITU-T Recommendation Q.850 . Table79. ISDN Q.931 Cause Codes Sample ISDN Congurations Frame Relay over ISDN Conguration 616 WAN Restoral Conguration Channelized T1/E1 Requirements and Restrictions for ISDN Interfaces Router Switches/Services Supported 618 ISDN Interface Restrictions Dial Circuit Conguration Requirements Network Dial Address Adding ISDN Addresses Network Subdial Address Conguring ISDN Parameters 620 Optional ISDN Parameters Conguring the ISDN Interface T1/J1 PRI Interface 622 E1 PRI Interface Page 624 ISDN I.430 and I.431 Switch Variants Native I.430 Support Native I.431 Support X.31 Support 626 Chapter 46. Conguring and Monitoring the ISDN Interface ISDN Conguration Commands Block-Calls 628 Page 630 Page 632 directory number 0 directory number 1 none auto Cause Code 634 ISDN Monitoring Commands Block-Calls Channels 636 Page Dial-dump ciruitname L2_Counters L3_Counters TEI Use the statistics command to display the current statistics for this ISDN interface. statistics Example for BRI: Example for BRI using I.430: Example for PRI with T1 using I.431: 640 Example for Channelized T1: ISDN and the GWCON Commands Interface Statistics for ISDN Interfaces and Dial Circuits Nt ISDN and the GWCON Commands Conguration - Information on Router Hardware and Software ISDN and the GWCON Commands 642 Chapter 47. Conguring and Monitoring Dial Circuits Dial Circuit Conguration Commands Encapsulator 644 Page 646 kbps No inbound outbound 648 list of slots Dial Circuit Monitoring Commands Callback 650 Appendix A. Quick Conguration Reference Quick Conguration Tips Making Selections Integrated Modems Exiting and Restarting When Youre Done Conguring LAN Emulation 652 Conguring Interfaces Ethernet Token-Ring 654 Conguring Multilink PPP (MP) Interfaces 656 Conguring Dial-Circuits Conguring Dial-in Access to LANs (DIALs) Interfaces and DIALs Server Information 658 Page 660 Page Conguring Bridging 662 Conguring Protocols Conguring IP 664 Conguring IPX 666 Page Conguring DECnet (DNA) 668 Page Conguring Booting 670 TFTP Boot BOOTP Boot IBD Boot Enabling Console Modem-Control 672 Restarting the Router Page Page Appendix B. X.25 National Personalities GTE-Telenet DDN 676 Appendix C. Making a Router Load File from Multiple Disks Assembling a Load File Under DOS Assembling a Load File Under UNIX Disassembling a Load File Under DOS 678 Disassembling a Load File Under UNIX Page List of Abbreviations 682 Page 684 Page 686 Page 688 Page Page Glossary American National Standard Dictionary for Information Systems IBM Dictionary of Computing Fiber Optic Terminology Information TechnologyVocabulary 692 subnetwork mask digital broadcast address AppleTalkAddress Resolution Protocol (AARP) B multicast all-stations address C line switching 694 data service unit (DSU) noncanonical address D received line signal detector (RLSD) connection virtual level 696 physical level DCE ready spoong encapsulation segment data set ready (DSR) name server domain name Administrative Domain E no response 698 explorer packet denite response G H I Internet 700 RouTing update Protocol (RTP) IP address L circuit switching 702 token ring universally administered address remote bridging wide area network (WAN) M wide area network (WAN) MIB object MIB variable modulus N 704 Networking (APPN) network node destination virtual route (VR) pacing O P packet mode operation 706 circuit switching socket subarea PU peripheral PU R data carrier detect (DCD) explicit route (ER) path nonseed router S 708 destination service access point (DSAP) Internet Control Protocol (ICP) 710 address mask subnet RouTing update Protocol (RTP) subnetwork T multilink transmission group (MLTG) locally administered address physical circuit mixed-media multilink transmission group (MMMLTG) U V 712 data StreetTalk W pattern-matching character X Internetwork Packet Exchange (IPX) Z Page Index Numerics A B 716 C D 718 E 720 F G 722 H I K L 724 M N O 726 P Q R 728 S T 730 U V W X 732 Readers Comments Wed Like to Hear from You Readers Comments Wed Like to Hear from You IBMR ___________________________________________________________________________________________________ SC30-3681-08 BUSINESS REPLY MAIL