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Alarms and Traps
Setting Alarms
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Example 3 The following example configures an alarm on CRC/alignment error
packets. The alarm triggers when the data source detects a high level of
these error packets on the network, and rearms when the level drops
back to a more normal level.
Historical Statistics graphs indicate that the typical rate of CRC error
packets on this particular network segment is below 1 per second. Rarely
does the rate exceed 4 per second.
Lately, however, you’ve been seeing evidence of brief spikes of CRC
errors. To narrow down the problem, you configure an alarm on a Lan-
Probe to start a packet capture when the error rate reaches 4 per second,
then stop capture when the rate drops back to 1 per second.
In addition, you’ll configure a trap to notify you when the alarm triggers
and rearms. You’ve already defined a trap destination group, called
“admin,” that includes your OpenView NNM management station.
You’ve also created a script, TrapEmail.sh, that sends you electronic
mail with the particulars of the alarm event.
To configure this alarm with packet capture, follow these steps:
1 Use Protocol Analyzer to configure a packet capture instance called
“CRC errors/alarm” on the LanProbe. Define a filter that captures
CRC/alignment error packets (status(crc) in the filter expression
window).
2 To make the packet capture instance available to the Alarms applica-
tion (without actually starting the instance), arm the instance in the
Protocol Analyzer by choosing Instance➤Arm.
3 Open the Alarms application for the LanProbe, and configure the
basics of a new alarm: description, monitored object of CRC/Alignment
Errors, and threshold of 4 units per second for 5 seconds. Set the trap
destination group to admin, which was defined earlier.
4 Push the Options… button to display the advanced alarm parameters.
Set the rising and falling thresholds at 4 and 1, respectively.
5 Configure the other advanced options as appropriate.
- The New World of 3
- Network Management 3
- 5967–9446 5 6
- Reporter—At a Glance 7
- 5967–9446 7 8
- 8 5967–9446 9
- 5967–9446 9 10
- Load Monitor—At a Glance 11
- 5967–9446 11 12
- Protocol Analyzer—At a Glance 13
- 5967–9446 13 14
- 5967–9446 15 16
- Applications and Agents 17
- 5967–9446 17 18
- 5967–9446 19 20
- In This Book 22
- 22 5967–9446 23
- Contents 24
- Component Health Graphs 114 26
- Scheduling Reports 125 26
- Setting Up Report Output 132 26
- Exception Reporting 139 26
- Launching Other Tools 212 28
- Traffic Profile Modeling 217 28
- Printing and Saving Data 237 28
- Load Monitor 245 29
- Running Load Monitor 247 29
- Displaying Load 258 29
- Changing Properties 284 29
- 5967–9446 29 30
- Protocol Decodes 407 32
- Alarms and Traps 417 32
- Configuring Traps 419 32
- Setting Alarms 430 32
- Token Ring Applications 491 34
- Protocol Distribution 503 34
- RMON Log Table 515 34
- RMON Status 523 34
- Graphs and Tables 527 35
- Working with Graphs 528 35
- Working with Data Tables 537 35
- Index 541 35
- Introduction 40
- 40 5967–9446 41
- Graph Data Type 44
- Manager is installed 44
- Temporary Files 45
- 5967–9446 45 46
- Reporter’s Web Interface 47
- Baselines 48
- Running Reporter 51
- HP NetMetrix Demonstration➤ 52
- Internetwork Reporting… 52
- To start Reporter 53
- ➤Display Now… 55
- To print a displayed report 56
- To modify selected reports 57
- Specify the report file name 58
- To create a new, blank report 59
- To remove selected reports 59
- To exit Reporter 61
- Creating Reports 62
- ➤Display Now… to check the 63
- To select data sources 65
- Choose File➤Save As… 67
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- To generate the report 70
- To save a report 70
- ➤New Report… 71
- ➤Display Now… to view the 71
- ➤Save… to save 71
- Manipulating Graphs 72
- To add graphs to a report 73
- To modify selected graphs 74
- To remove a graph 74
- Protocol Distribution Graphs 79
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- To configure a Top N graph 81
- Top N Graphs 82
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- Network Health Graphs 84
- Graph parameters as needed 85
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- Reporter 101
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- 102 5967–9446 103
- 104 5967–9446 105
- Response Profile Graphs 106
- Important 107
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- Target Names 113
- 5967–9446 113 114
- 5967–9446 115 116
- Component Health Graphs 118
- 118 5967–9446 119
- 120 5967–9446 121
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- 5967–9446 123 124
- Scheduling Reports 126
- ➤Schedule/Output Setup… 127
- Select Generate Report Daily 128
- To set a custom schedule 130
- 130 5967–9446 131
- Figure 23 Schedule: Custom 131
- To suspend a report 132
- Setting Up Report Output 133
- To send output to a printer 134
- Select Output to Screen 135
- Indicate the X display 135
- To save output in a file 136
- Select Output to Mail 137
- Select Output to Command 138
- 138 5967–9446 139
- Figure 28 Output to a Command 139
- Valid report configurations 143
- 5967–9446 143 144
- Choose Exception parameters 146
- Choose Disabled 146
- 5967–9446 149 150
- 5967–9446 151 152
- To change the graph settings 154
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- 156 5967–9446 157
- To specify the graph style 159
- To select a font 161
- Internetwork Monitor 162
- Running Internetwork Monitor 164
- To access live data 165
- To access archive files 167
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- To view the error log 170
- To exit Internetwork Monitor 170
- Viewing the Internetwork 171
- 5967–9446 171 172
- 174 5967–9446 175
- Traffic Placement 176
- ➤View Properties… 177
- 180 5967–9446 181
- Choose Report➤Data Report… 183
- 184 5967–9446 185
- 186 5967–9446 187
- Color and Line Styles 188
- To pause the view 191
- Choose Time 192
- Choose the Time Mode to use 192
- Choose Traffic 195
- To set the threshold 196
- Manipulating the View 201
- To select items 202
- To display labels 203
- To remove labels 204
- To display information boxes 204
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- 5967–9446 205 206
- To rotate a segment ring 208
- To move nodes 209
- Type Network Address Format 212
- Launching Other Tools 213
- 5967–9446 213 214
- ● you are viewing a model 214
- To create a model 219
- To manipulate a model 220
- Traffic Profile Modeling 223
- 222 5967–9446 223
- 5967–9446 223 224
- To save a model 226
- To load a model 227
- Node-to-Segment Assignments 228
- Address Placement 229
- Nodes on Unmonitored Segments 230
- Interconnect Devices 230
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- Routed Traffic 234
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- Printing and Saving Data 238
- 2 Specify Graph output 239
- To print graph(s) in color 241
- 2 Specify Text output 242
- Working with Properties Files 243
- To save properties in a file 244
- To load a properties file 244
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- Load Monitor 246
- Running Load Monitor 248
- To access extended RMON data 249
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- To access standard RMON data 252
- Give the command: 255
- To view a different instance 257
- To exit Load Monitor 258
- Displaying Load 259
- 5967–9446 259 260
- To use Zoom 263
- Zoom Elements and Paths 265
- Zoom Pop-Up Menus 266
- Useful Zoom Paths 267
- ➞Destination➞Time 268
- ➞Source➞ 268
- 5967–9446 269 270
- ➤Properties➤Graph… 273
- To rotate a segment graph 274
- To search for a data point 275
- Protocol Search Window 276
- Time Search Window 276
- Size Search Window 276
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- Figure 61 Effects of Expand 279
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- Figure 62 Effects of Contract 281
- Changing Properties 285
- Graph Properties 287
- ➤Data… from any Zoom pop-up 289
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- 5967–9446 291 292
- To sort data 294
- To set the Zoom layout 299
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- 5967–9446 313 314
- 5967–9446 315 316
- ● A detected AIS defect 316
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- Size graph 320
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- 5967–9446 331 332
- Working with Collected Data 334
- ➤Print… from the view window 335
- To load an archive file 337
- Availability of Features 338
- Extended RMON Data 339
- Standard RMON Data 339
- Protocol Analyzer 340
- Running Protocol Analyzer 342
- To run Protocol Analyzer 343
- 5967–9446 343 344
- To exit Protocol Analyzer 347
- 5967–9446 347 348
- ➤Start to 350
- To remove an instance 353
- To start an instance 354
- To stop an instance 355
- To arm an instance 356
- ➤Interface… menu to select 359
- 5967–9446 359 360
- Filter Expression Language 362
- To filter by host 363
- Building a Filter 364
- To filter by protocol 367
- 5967–9446 367 368
- To filter by packet status 370
- 370 5967–9446 371
- Choose Filter➤Pattern… 372
- AND), 375
- 5967–9446 375 376
- ::= num 378
- Description of Terms 380
- Working with Captured Packets 381
- To view packets 382
- 382 5967–9446 383
- Window Panes 384
- Scrolling 384
- Navigation 385
- Error and Information Packets 386
- To mark packets 387
- To unmark packets 387
- To search for a packet 388
- To tailor the Summary pane 390
- To load a trace file 395
- Choose Instance➤Post Filter 396
- Choose View➤Traffic Trend… 397
- 5967–9446 397 398
- To load a filter/settings file 401
- ➤Save Filter/ 402
- Protocol Decodes 409
- 408 5967–9446 409
- 410 5967–9446 411
- 412 5967–9446 413
- 414 5967–9446 415
- 416 5967–9446 417
- Alarms and Traps 418
- Configuring Traps 420
- To manage trap groups 421
- 5967–9446 421 422
- Network Trap Destinations 424
- HP Probe-Specific Events/Traps 430
- Setting Alarms 431
- To manage alarms 432
- Thresholds 437
- 5967–9446 437 438
- Push the Options… button 440
- Examples 445
- 5967–9446 445 446
- 5967–9446 447 448
- 5967–9446 449 450
- Trap Handling 452
- To display an alarm’s log 453
- 5967–9446 453 454
- Live Statistics 456
- Multi-Segment Statistics 458
- ➤RMON Statistics➤Live 459
- ➤Multi-Segment… 459
- ➤Node Graph… 463
- 5967–9446 463 464
- ➤Node Table… 466
- This data source’s 467
- Host table shows 467
- To export statistics to a file 468
- Traffic Matrix 469
- ➤Traffic Matrix Graph… 470
- ➤Traffic Matrix Table… 473
- Traffic Matrix table, as 474
- Table is sorted by the 474
- Octets column 474
- Historical Statistics 476
- Displaying Statistics 478
- Available Statistics 479
- Interpreting Data Loss 480
- To display the hourly study 481
- ➤RMON Statistics➤ Historical 483
- ➤Hourly… 483
- To display the daily study 484
- To display the monthly study 485
- Using Baselines 486
- High and Low Baselines 487
- Cumulative Averages 488
- ➤Monthly Baseline… 489
- ➤Monthly Baseline…, NetMetrix 489
- ➤Yearly Baseline… 491
- ➤Yearly Baseline…, NetMetrix 491
- Token Ring Applications 492
- To display token ring status 494
- ➤RMON Statistics➤ Token 499
- ➤Remove Station… 499
- Token Ring Remove Station 500
- ➤RMON Statistics➤Token Ring 501
- ➤Ring Entry Errors Table… 501
- ➤Save As… and specifying the 502
- Token Ring Entry Errors 503
- 502 5967–9446 503
- Protocol Distribution 504
- ➤Protocol Distribution… 506
- To pause the application 509
- To select the graph units 510
- To exit Protocol Distribution 511
- LanProbe IP Address 512
- Tracking 512
- LanProbe IP Address Tracking 513
- To display the IP Table 514
- RMON Log Table 517
- To display the log table 518
- To sort the log table 519
- To filter by event 520
- Filtering by Event 521
- 520 5967–9446 521
- To exit RMON Log Table 522
- 522 5967–9446 523
- RMON Status 524
- RMON group 526
- To exit RMON Status 527
- Graphs and Tables 528
- Working with Graphs 530
- Choose View➤Time Intervals… 533
- 5967–9446 533 534
- The View menu’s 536
- ➤Show/Hide 537
- ➤Show Legend 537
- ➤Show Grid 537
- Working with Data Tables 538
- To sort a table 539
- To print a table 540
- To save a table 540
- 540 5967–9446 541
- 5967–9446 541 542
- User’s Guide 544
- 544 5967–9446 545
- 546 5967–9446 547
- 548 5967–9446 549
- Software License Agreement 551
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