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Observer Suite: SNMP Management
level of activity, or other condition. SNMP Extension collects incoming trap messages
constantly.
“Trap” and “trap message” are used interchangeably.
To receive trap messages with SNMP Management Console, SNMP Management
Console's IP address must be included in the trap configuration table of the SNMP agent.
Trap configuration is usually separate from general SNMP configuration.
If you configure one but not the other, you may be able to poll the SNMP
agent, but receive no trap messages.
The SNMP agent doesn’t expect confirmation for trap messages. If the message doesn’t
reach its destination, SNMP Management Console has no way of knowing the message
was sent, and the agent has no way of knowing whether a message was received.
Under normal circumstances most of the trap messages do reach their
destinations. The limitation of traps comes from the lack of verification
capabilities built into the relevant RFC specifications.
The MIB Editor
The MIB Editor is where MIBs are compiled and MIB objects are placed in requests to
create SNMP Management Console lists, charts, tables, forms, and traps.
• MIB—a MIB is a text file in Abstract Syntax Notation One (ASN.1) format, which
describes in a structured way the objects an SNMP device supports.
• Compiled MIBs—a compiled MIB is a binary file created from a MIB file in
preparation for creating requests to be submitted to an SNMP agent.
Request
files
Compiled
MIBs
- Observer Reference Guide 1
- Limited Warranty—Software 3
- Limited Warranty—Hardware 3
- Trademark Notices 3
- Technical Support 4
- End User License Agreement 4
- Table of Contents 5
- Introduction 10
- Installing Observer 11
- Quick Installation Overview 12
- Running Observer or a Probe 13
- Probe Installation 14
- Installation 14
- 5. Click Next 18
- NIC Analyzer Driver 21
- Main Observer Display 23
- Observer Basics 24
- View Menu 25
- Capture Menu 26
- Statistics Menu 26
- Trending/Analysis Menu 28
- Tools Menu 28
- Options Menu 30
- Window Menu 31
- Observer Toolbars 32
- Settings Toolbar 33
- Actions Toolbar 33
- Toolbar Setup 34
- Customizing Toolbars 35
- Customizing the Probe Map 37
- Uninstalling Observer 39
- The Capture Menu 41
- Options > Selected Probe 42
- Packet Capture Mode 43
- Packet Capture-Graph View 44
- *.enc—for Ethernet captures 49
- *.trc—for Token Ring captures 49
- *.fdc—for FDDI captures 49
- *.cap—for CAP formats 49
- Printing the Decode 50
- RINT button 51
- PostFilter 53
- EFORE button 57
- FTER button 57
- *.cap—for CAP files 76
- Bandwidth Utilization 79
- Efficiency History 81
- Matrix, IP Subprotocols) 84
- Internet Patrol Tab 86
- IP Pairs (Matrix) Tab 91
- IP Subprotocols Tab 94
- Network Activity Display 96
- List View 100
- Menu Path 101
- Available Views 101
- The Statistics Menu 102
- Network Vital Signs Mode 103
- Setup Properties 104
- Plot View 107
- Summary List View 107
- Collision Expert Analysis 108
- 3D Chart View 112
- Pie View 112
- Pair Statistics (Matrix) Mode 113
- Pair Circle View 116
- 3D Column Chart View 119
- Protocol Tree View 121
- 3D Pie Chart View 122
- Settings 122
- RMON Tables 123
- Router Observer 123
- List and Dials View 125
- Access Points Load Monitor 127
- Top Talkers Statistics Mode 133
- Top Talkers Setup Properties 134
- Utilization History Mode 140
- 3D Line Chart View 143
- Dial View 144
- Utilization Summary View 144
- 3D Step Chart View 144
- Utilization Thermometer Mode 145
- Web Observer 145
- Purpose 149
- Setup and Display Properties 151
- Wireless Site Survey 152
- General Information Tab 153
- Frame Type Tab 153
- Control Frames Tab 153
- Management Frames Tab 154
- Data Frames Tab 154
- Speeds Tab 154
- Signal Tab 155
- Channel Scan Tab 155
- Triggers and Alarms Mode 156
- LEAR icon 157
- Trigger Settings 158
- Bad IP Checksum 159
- Duplicate IP Addresses 160
- Ethernet Frame Errors 160
- Fragmented IP Packets 161
- IPX Server Busy 162
- Number of Packets 163
- Sequence of Bytes at Offset 164
- Unknown IP Addresses 164
- Utilization 165
- Wireless Frame Errors 165
- FDDI Network Vital Signs 170
- Wireless Vital Signs 171
- Network Summary 173
- Trending and Analysis Menu 175
- Network Trending 177
- Network Trending Setup 179
- DIT or ADD button 180
- Network Trending Viewer 183
- The Statistics Toolbar 185
- IEW ALL STATIONS button off 189
- Network Trending Mode 191
- WAN Delay Analysis 194
- Apply IP Mapping 197
- Application Analysis 200
- Graph View 201
- The Tools Menu 205
- Discover Network Names Mode 207
- Graphical Station List View 208
- Discover Using: Selections 209
- IP Discovery Setup 209
- The Tools Menu 210
- Resolve IP 211
- Import Aliases 211
- Multiple Address Tables 212
- Ping/Trace Route 213
- Tools > Ping/Trace Route 214
- Replay Packet Buffer 215
- SNMP Trending Data Manager 216
- SNMP MIB Editor 217
- SNMP MIB Walker 217
- Switch Station Locator 219
- Traffic Generator 222
- Tools > Traffic 223
- Generator 223
- Enterprise Licensing 224
- Edit Switch Scripts 225
- Import/Export Filters 226
- Register Custom Decode DLLs 226
- Switch Setup Dashboard 227
- Filtering by Address 230
- Filtering for Errors 230
- Filtering by Packet Length 231
- Filtering by Port 233
- Filtering by WAN DLCI 234
- Filtering by WAN Port 234
- Conditions) 234
- Filter Shortcuts 237
- Applying Multiple Filters 239
- The Options Menu 241
- Observer General Options 242
- Paging Server Settings 243
- Configure Voice Settings 249
- Advanced Pager Settings 250
- Pager Service Tray Icon 251
- Paging Server Log 252
- Send Page 253
- Observer General Options 255
- About Probe Instances 256
- Creating a Probe Instance 257
- Instances 262
- Edit Probe Entry Tab 266
- Probe Parameters Tab 267
- Adapter Speed Tab 268
- Wireless 802.11a/b Tab 269
- Web Reporting Configuration 270
- Actions Menu 271
- Actions Menu 272
- RMON Conformance Tab 274
- Update Switch Scripts 275
- Real-Time Expert 277
- Configuring Real-Time Expert 278
- Expert Thresholds (OSI Model) 278
- Expert Threshold Profiles 279
- Expert Items 280
- Data Link Tab 281
- Real-Time Expert 282
- Network Tab 283
- Transport Tab 284
- Session Tab 285
- Presentation/Application Tab 287
- Using Real-Time Expert 289
- Real-Time Analysis 290
- Expert Global Settings 291
- Expert Displays 297
- Expert Button Bar 298
- Expert Summary 298
- Expert Events 299
- UDP Events 302
- ICMP Events 302
- IPX Events 303
- NetBIOS Events 304
- Wireless Events 304
- Expert Analysis 305
- ONNECTION 306
- Server Analysis 307
- What-If Analysis 308
- Voice Over IP Expert 311
- Switched Observer 313
- Technology Overview 314
- Switch SNMP Agents 315
- Port Mirroring 316
- Using the Switch Dashboard 317
- E)CONNECT AND 318
- NABLE SWITCH MANAGEMENT icon 318
- Switch Scripts 320
- Sections Headers 321
- Switched Observer 322
- Telnet Script Example 324
- SNMP Scripts 327
- SNMP Script Example 329
- Switched Modes 332
- Internet Observer – Switched 334
- Top Talkers – Switched 335
- SNMP Overview 337
- SNMP Management Station 341
- Getting Started 343
- Using SNMP Management Console 344
- Functional Overview 345
- Configuring SNMP Agents 346
- Adding an SNMP Agent 347
- Edit an SNMP Agent 350
- Delete an SNMP Agent 350
- SNMP Buttons 350
- Collecting Chart Information 352
- Customizing Charts 353
- Collecting List Information 355
- Read Values Display 356
- Collecting Forms Information 357
- Collecting Table Information 358
- The MIB Editor 360
- The MIB Editor Toobar 361
- Using the MIB Editor 362
- Compiling MIBs 363
- The Compile Process 364
- Building Requests 365
- Why Build Custom Requests? 366
- Building and Modifying Charts 367
- Building Expressions 372
- Building Trap Requests 374
- Designing and Building Forms 376
- Form Editor 377
- Form Designer 377
- Text Field Properties 381
- Edit Field Properties 382
- List Box Properties 384
- Combo Box Properties 385
- Group Box Properties 386
- Bitmap Properties 386
- Button Control Properties 387
- Drawing Control Properties 388
- Enumerated Bitmap Properties 389
- Dial Control Properties 391
- The MIB Walker 392
- ET VALUE 394
- Setting Values 395
- SNMP Technical Overview 396
- General Principles 397
- Types of SNMP MIB Objects 398
- Observer Suite: Web Reporting 403
- Statistics Available 404
- Web Server Options Tab 407
- Using Web Publishing Service 408
- Switch Trending 412
- Internet Trending 415
- SNMP Trending 419
- Creating Comparison Reports 421
- Observer Suite: RMON Console 423
- RMON Modes 424
- RMON Ethernet Triggers 428
- Broadcast Packets 429
- Collisions 430
- CRC & Alignment Errors 430
- Fragments 430
- ” or from the beginning of a 431
- 00 17 — port 23 in hex 435
- Soft Error Reports 436
- Token Errors 436
- RMON Table 436
- DICOM Extension 437
- Licensing 438
- 1. Start Observer 440
- DICOM Extension Decode Window 441
- DICOM Extension 442
- Troubleshooting 445
- Specific Issues 446
- Firewall? 447
- Troubleshooting 448
- Warranty 449
- Using the Custom Decode Kit 450
- Files Included 450
- StdAfx.cpp and StdAfx.h 451
- Overview 453
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