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Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, v5.3.1 8-1
8
Configuring DNS Client
Overview
This chapter provides an overview of the Domain Naming System
(DNS) Client support and procedures for configuring DNS client
support on the Avaya Multiservice switch.
DNS Client Support
Overview
DNS is a distributed database of name servers which supply name-
to-address translations for DNS clients. The DNS servers collectively
direct DNS Clients to the DNS Server responsible for a Name to
Address mapping; and that Server provides the specific mapping
being requested.
There are three types of DNS servers:
■ The root name server — Located at the top of the DNS
database tree. It contains pointers to the master name servers
for each of the top-level domains. The root name servers
handle the domains such as .COM, .EDU, .GOV, etc.
■ The master name server — Located in the middle of the DNS
database tree. It contains pointers to the individual name
servers for each of the subdomains within its top-level
domain.
■ The individual name server — Located at the bottom of the
DNS database tree. It contains detailed address information
for the local hosts in the subdomain.
Recursive vs. Iterative
The goal of DNS is to resolve a fully qualified domain name (FQDN)
to an IP address. This work can either be done by the DNS server or
the DNS client. These approaches are referred to as Recursive or
Iterative, respectively.
- Avaya P550R 1
- Multiservice Switch 1
- User Guide 1
- Version 5.3.1 1
- Produced in USA, July, 2002 4
- Table of Contents 5
- IndexIndex 1 16
- Overview of the Contents 17
- Technical Support 19
- Conventions 20
- Related Documentation 22
- Online Help 23
- Document Files 25
- Documentation 26
- Terminology 26
- Documentation Feedback 27
- Introduction 29
- Hardware Components 30
- 1.76 Gb/s 32
- 22.88 Gb/s 32
- Chapter 1 34
- 50-Series Modules 35
- Layer 3 36
- Supervisor 36
- Redundant Supervisor 37
- Media Modules 38
- Layer 2 and 39
- Layer 3 Gigabit 39
- ATM Uplink 40
- 80-Series Modules 41
- Software Features 42
- Flood Pruning Using VLANs 43
- Hunt Groups 44
- OpenTrunk Technology 44
- Load MIB 45
- Spanning Tree Modes 45
- Port Settings 48
- Spanning Tree Design 48
- Extensive Fault Tolerance 49
- Buffer and Queue Management 49
- New Software Features 50
- Routing Overview 56
- Initialize and Setup 59
- Setting up an 60
- Establishing a 60
- Telnet Session 60
- Terminating a 61
- Telnet session 61
- Troubleshootin 61
- Connecting to 66
- 10/100Base-T 66
- Opening the Web Agent 67
- Moving through the Web Agent 69
- Creating a Custom Access Type 72
- Custom Access 73
- Types with the 73
- Deleting a Custom Access Type 74
- Setting Up User Accounts 75
- Disabling User Accounts 77
- Setting Up SNMP Communities 78
- Configuring User Accounts 81
- (RADIUS) Client Support 82
- Realms & 83
- Login Order of 85
- Operations 85
- RADIUS Client 85
- File settings 85
- Sample Client 86
- Configuring a 87
- Serial Console 90
- Port as a TTY 90
- Console Using 90
- Connecting a 93
- &D0 Disable DTR 96
- Regaining 98
- Configuration 98
- Access to the 98
- PPP Serial Port 98
- Using Dial-Up 100
- Networking 100
- Serial Port 100
- Overview 101
- Chapter 2 102
- Starting a Telnet Session 103
- Managing Configuration Files 104
- Copying Configuration Files 105
- Using the Web 106
- Copying Files 107
- Parameter Description Options 108
- Configuring System 113
- Information 113
- Chapter 3 114
- Web Agent 115
- Procedure 115
- Setting Summer Time Hours 116
- Configuration dialog box 119
- Parameter Definition 119
- Setting the System Clock 122
- Performing a Reset 128
- ProminetMib.txt 129
- Using VLANs, Spanning Tree 131
- What is a VLAN? 132
- Ingress Rules 134
- Forwarding Rules 135
- Binding a Port 136
- Egress Rules 137
- VLAN Considerations 137
- Creating a VLAN 138
- Configuring VLAN Parameters 141
- Assigning Ports to VLANs 143
- Chapter 4 144
- Problems with 145
- Single Spanning 145
- Tree Instance 145
- IEEE 802.1D 145
- Managing 146
- Spanning Tree 146
- Bridge Port The bridge port 151
- (Figure 4-13) 152
- Parameter Explanation 152
- Hunt Group 158
- Hunt Group Terminology 159
- How Hunt Groups Load Share 160
- 50 Series 161
- Forwarding 161
- Engines and 161
- Fabric Ports 161
- Load Share 162
- Function 162
- Optimizing 164
- Throughput 164
- Creating Hunt Groups 166
- Adding Switch 169
- Ports to the 169
- Creating Hunt 171
- Groups Using 171
- Viewing Hunt Group Members 172
- Snooping 174
- Configuring Port 181
- Parameters 181
- Physical Port Features 182
- Configuring Port Parameters 183
- Switch Port Features 185
- Chapter 5 186
- Automatic VLAN Creation 210
- Configuring Fast Start Mode 213
- GBIC Identification 218
- Enabling NEDR 222
- Enabling IEDR 225
- Enabling IEDR for Hunt Groups 225
- Viewing IEDR Settings 226
- Error Messages 227
- System Messages 227
- Managing the Address 231
- Forwarding Table 231
- Table Sizes 232
- Chapter 234
- AFT Default Settings 237
- Increment and Threshold 237
- Trigger 238
- (Multiplier) 238
- Threshold 238
- Age Timers 239
- Instance Table Information 240
- ■ APPLY to save your changes 244
- Searching the Switch AFT 245
- Parameter Defines the 250
- Adding Entries 252
- Manually Using 252
- Option 82 for DHCP 253
- Source Addresses 254
- Configuring Redundancy 259
- Contents 261
- Installing Redundant Hardware 264
- Enabling Redundant Hardware 264
- ■ An event log message 267
- Replacing an Element 268
- Ethernet Console IP Addresses 269
- Synchronizing Process 272
- Configuring DNS Client 277
- Using the Web Agent 282
- Using the CLI 284
- CLI Example 284
- Configuring IP Routing 287
- Display Existing 290
- IP interfaces 290
- Parameter Allows you to 293
- Enabling IP 297
- Routing Using 297
- Creating a 301
- Multinet 301
- Interface 301
- Access Control List Overview 303
- Conventions for 304
- Network Configuration 306
- Creating Access Lists 307
- Creating 310
- Extended 310
- Access Rules 310
- Activating Access Lists 314
- Important 318
- Terms used in 318
- Recognize 320
- Performance 320
- Evaluate System Performance 321
- Enable Routing at the Module 323
- Design Safe, Efficient ACLs 323
- Identify the Ports 325
- Configuring Hash Mode 327
- Managing F-chip Memory 327
- Creating IP Static Routes 329
- Creating IP 330
- Static Routes 330
- Static ARP 331
- Entries Using 331
- IP Multicast 336
- Configuring IGMP 337
- Globally 338
- Enabling IGMP 338
- Modifying IGMP 341
- Interfaces Using 341
- Routing Protocol (DVMRP) 343
- Modifying a DVMRP Interface 345
- Statistics 347
- Displaying 348
- Global IP 348
- Routing 348
- Statistics Using 348
- Statistic Defines the 349
- Displaying the 356
- IP Routing Table 356
- IP Multicast Statistics 358
- Displaying IGMP 359
- Global Statistics 359
- Display the 364
- Multicast group 364
- DVMRP Global 365
- Statistics by 365
- Statistics using 369
- Neighbor 370
- DVMRP Routing 372
- Table, using the 372
- Globally Enabling VRRP 379
- Enabling VRRP on an Interface 380
- Displaying VRRP Statistics 386
- Non-Address 390
- Owner Features 390
- Assigning 390
- Priorities to 390
- Virtual Routers 390
- Enabling IRDP on an Interface 392
- Protocol (LDAP) 395
- Viewing LDAP Statistics 399
- Console} 404
- Configuring the Routing 405
- Information Protocol (RIP) 405
- Configuring RIP 406
- Modifying RIP Interfaces 408
- V1 is the default setting 409
- Trusted RIP 412
- Neighbors 412
- Key Chains on 413
- Multiservice 413
- Configuring the 414
- Key Chain using 414
- Viewing RIP Statistics 416
- Viewing RIP 417
- NBMA IP Interfaces 418
- Configuring the OSPF 419
- Routing Protocol 419
- Configuring 421
- OSPF Globally 421
- Creating OSPF Areas 423
- Deleting OSPF Areas 425
- Modifying OSPF Areas 426
- Modifying OSPF Interfaces 427
- OSPF Passive-Interface 431
- Creating OSPF Virtual Links 432
- Deleting OSPF Virtual Links 434
- Modifying OSPF Virtual Links 435
- Creating OSPF Summaries 436
- Deleting OSPF Summaries 438
- Modifying OSPF Summaries 438
- Parameter Displays the 440
- Displaying OSPF Links 442
- Displaying OSPF Neighbors 443
- Searching the 445
- OSPF Link State 445
- Database Using 445
- Parameter Displays 448
- Using Web 452
- Setting Up NBMA Neighbors 453
- Removing NBMA Neighbors 454
- CLI Commands 455
- Configuring IPX Routing 457
- IPX Datagram Structure 458
- Hardware Requirements 459
- Configuring IPX Interfaces 461
- Creating IPX Static Routes 465
- Deleting IPX Static Routes 468
- Modifying IPX Static Routes 469
- Creating IPX Static Services 469
- Deleting IPX Static Service 472
- Modifying IPX Static Service 473
- Searching the IPX Route Table 476
- Configuring IPX RIP 483
- Protocol 483
- Configuring IPX RIP Protocol 485
- Creating and 489
- Modifying IPX 489
- RIP Filters Using 489
- Interpreting IPX 491
- RIP Interface 491
- Configuring IPX SAP 493
- Creating IPX SAP Filters 495
- Creating IPX SAP Name Filters 496
- Creating IPX 499
- SAP Name 499
- Filters Using the 499
- SAP Network 500
- Default value is outbound 502
- Configuring IPX SAP Protocol 503
- SAP Interface 505
- Configuring AppleTalk 507
- Configuring AppleTalk Routing 509
- Editing AppleTalk Interfaces 514
- Viewing AppleTalk Statistics 530
- Parameter Number of 531
- Managing Intelligent 543
- Multicasting 543
- Dissemination 546
- Process, LGMP 546
- Displaying Router Ports 550
- Creating Static Client Ports 560
- Deleting Static Client Ports 561
- (IGMP) Snooping 562
- Enabling IGMP Snooping 564
- Protocol (LGMP) Server 565
- Configuring the LGMP Server 568
- 4. Click: 571
- Protocol (LGMP) Client 572
- Enabling the LGMP Client 574
- (CGMP) Snooping 578
- — APPLY to save your changes 579
- Viewing CGMP Snooping 580
- Monitoring the Avaya 581
- Checking Active Alarms 585
- Using the Event Subsystem 586
- Viewing Event Statistics 595
- Setting Log Size 596
- Monitoring and Configuring 601
- Parameters continued 608
- Parameter Defines 611
- By Using RMON and Ethernet 613
- Statistic Indicates Actions 616
- Setting Up Port Mirroring 620
- Setting Up Port 633
- Mirroring 633
- Removing Port 634
- Unknown Source Addresses 635
- SNMP MIB 637
- MIB MIB Object OID 638
- Managing Buffers and 639
- Queues on 50-Series Modules 639
- Managing Buffers and Queues 640
- Parameter Definition 643
- Buffers and 645
- Queues Using 645
- 80-Series QoS 647
- Why implement QoS? 648
- How Does QoS Work? 649
- Diagram of QoS Process 652
- Classification of Traffic 653
- Using a Default 655
- ACL Rule 655
- Diffserv 656
- Precedence of Priorities 657
- Supported Number of Queues 658
- Examples 660
- <mod-num> 665
- Displaying the DiffServ Table 668
- Setting Up an ACL Rule 669
- Keywords 670
- Arguments, and 670
- arguments are 1 671
- Keyword, Argument 671
- Definition 671
- 10.10.60.0 0.0.0.255 673
- 10.10.80.0 0.0.0.255 673
- 199.93.239.168 673
- Examples: 674
- Extended ACL 674
- To . . . Enter . . 675
- Setting Up a Default ACL Rule 676
- Ingress Policing 677
- Setting Up Policing 678
- Queue-Servicing Algorithms 681
- Strict Priority Queueing 682
- Management Traffic 684
- Setting Up WFQ 685
- Setting Up CBQ 687
- Setting Up CBWFQ 688
- QoS Statistics 693
- Statistic Explanation 694
- Egress Port 695
- Statistics for 10/ 695
- 100 Modules 695
- Statistics for 696
- Gigabit 696
- Buffer Statistics 697
- Displaying QoS Statistics 699
- Resetting the QoS Statistics 700
- Upgrading the Application 703
- Software 703
- Appendix A 706
- Setting the Startup Image 708
- Supervisor Modules 709
- Verifying the Upgrade 712
- Upgrading from v4.x to v5.x 712
- Boot Mode 715
- Password Recovery 716
- Appendix B 718
- Supported MIB Groups 719
- Appendix C 720
- IP Interface 721
- IP Version 4.0 and Services 721
- IP Forwarding/Route Table 722
- AppleTalk 722
- FCC Notice 723
- Avertissement! 724
- Numerics 725
- Index 11 735
- Index 13 737
- Index 15 739
- Index 17 741
- Index 19 743
- Index 21 745
- Index 23 747
- Index 25 749
- Index 27 751
- Index 29 753
- Index 31 755
- Index 33 757
- Index 35 759
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