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B. SNMP MIBs and Traps, and RMON Alarm Defaults
9128-A2-GB20-80 September 2002
B-11
Table B-6. linkUp and linkDown Variable-Bindings (1 of 2)
Interface Variable-Bindings Possible Cause
Physical Sublayer
T1 Network,
DSX-1,
PRI
(Supported by the
media-specific DS1
MIB.)
ifIndex (RFC 1573)
ifAdminStatus (RFC
1573)
ifOperStatus (RFC 1573)
devLastTrapString
(devHealthAndStatus.-
mib)
linkDown – One or more alarm
conditions are active on the
interface.
Alarm conditions include:
– Loss of Signal (LOS) or
far-end loss of signal
– Out of Frame (OOF)
– Alarm Indication Signal
(AIS)
– Excessive Error Rate (EER)
– Yellow Alarm
Strings:
‘$ifString down.’ No alarms
exist. (e.g., ‘Network T1 down
due to yellow alarm.’)
‘$ifString administratively
shutdown.’ (Due to an
intentional shutdown.)
linkUp – No alarms on the
interface.
String:
‘$ifString up.’
Synchronous Data
Port
(Supported by the
media-specific
RS232-like MIB.)
ifIndex (RFC 1573)
ifAdminStatus
(RFC 1573)
ifOperStatus (RFC 1573)
devLastTrapString
(devHealthAndStatus.-
mib)
linkDown – One or more alarm
conditions are active on the
port.
Alarm conditions include:
– DTR off
1
– RTS off
2
–‘ ’ – Not DTR or RTS, but
link is down.
String:
‘$ifString $alarmString down.’
(e.g., ‘Sync Data Port S01P1
DTR and RTS down.’)
‘$ifString administratively
shutdown.’ (Due to an
intentional shutdown.)
linkUp – No alarms on the port.
String:
‘$ifString up.’
1
The DTR alarm condition will only generate a linkUp/linkDown trap if the DTE
supports the DTR lead state.
2
The RTS alarm condition will only generate a linkUp/linkDown trap if the DTE
supports the RTS lead state.
3
If the LMI Protocol is not configured, a linkUp/linkDown trap is based solely upon
whether the interface is enabled or disabled.
- FrameSaver 1
- 3 Configuration Procedures 4
- 4 Configuration Options 4
- 6 Security and Logins 6
- 7 Operation and Maintenance 6
- 8 Troubleshooting 7
- Activating SLM Features 8
- A Menu Hierarchy 9
- Contents 10
- F Technical Specifications 12
- G Equipment List 12
- About This Guide 13
- Technical Manuals 14
- Technical Glossary 14
- Product-Related Documents 15
- Conventions Used 16
- About the FrameSaver SLV 17
- CSU/DSU-Specific Features 18
- Router-Specific Features 18
- 1. About the FrameSaver SLV 19
- FrameSaver SLM Feature Set 20
- OpenLane SLM System 27
- Logging On 30
- Screen Work Areas 33
- Navigating the Screens 34
- Function Keys 35
- Selecting from a Menu 36
- Selecting a Field 37
- Entering Information 37
- Screen Contents 37
- Navigating the Router’s CLI 38
- Configuration Procedures 39
- Setting Up Auto-Configuration 40
- Options 40
- Configuration Option Areas 41
- Saving Configuration Options 44
- System Information 49
- Setting Up the Modem 50
- Frame Relay Discovery Mode 53
- Automatically 54
- Removing a Circuit 54
- Setting Up Dial Backup 56
- Configuring the 59
- Criteria for Automatic Backup 59
- Modifying ISDN Link Profiles 60
- Management and Communications 62
- SNMP Traps 62
- Changing Operating Mode 63
- Configuration Option Tables 64
- Code Point Definitions 71
- Configuring Service 72
- Level Verification Options 72
- ASCII Text Entry 81
- Data Ports 82
- Physical 82
- Setting Up ISDN Link Profiles 93
- For a BRI DBM: 94
- For a PRI DBM: 94
- Clearing Assignments 104
- For a user data port link: 105
- For a network link: 105
- Display Conditions 105
- Main Menu 108
- Configuration 108
- DLCI Records 108
- For user data port DLCIs: 109
- For network interface DLCIs: 109
- Configuring PVC Connections 112
- ISDN Link Name 113
- Configuring the IP Path List 116
- 4. Configuration Options 117
- Management and Communication 118
- Configuring Management PVCs 121
- General 127
- SNMP Management 127
- Telnet and FTP Session 128
- Configuring SNMP NMS Security 131
- Communication Port 140
- Configuring the Modem Port 144
- Auto Backup Criteria 148
- IP Routing 153
- Address Resolution Protocol 153
- Proxy ARP 153
- Interface Configuration 154
- Network Address Translation 155
- NAT Configuration Example 156
- Procedure 157
- NAPT Configuration Example 158
- 02-17300 162
- DHCP Relay Agent 163
- Router Security 164
- IP Filtering 165
- Land Bug Prevention 165
- Smurf Attack Prevention 165
- Security and Logins 167
- Limiting Access 168
- 6. Security and Logins 170
- Controlling ISDN Access 171
- Limiting Telnet Access 172
- Limiting FTP Access 173
- Controlling SNMP Access 175
- Creating a Login 178
- Modifying a Login 179
- Deleting a Login 179
- Controlling Router CLI Access 180
- Changing Access Levels 181
- Operation and Maintenance 183
- 7. Operation and Maintenance 184
- Displaying System Information 185
- LED Descriptions 190
- (cont'd) 191
- 9128-II 191
- Control Lead Descriptions 193
- Device Messages 194
- (Seen at an FTP 197
- Upgrading System 197
- Software 197
- (FrameSaver SLV 198
- 9128-II only) 198
- Reset COM Port usage 198
- Status Information 200
- System and Test Status 201
- Health and Status Messages 202
- FrameSaver unit 202
- Message What It Indicates 202
- Chapter 8, Troubleshooting 209
- LMI Reported DLCIs 211
- IP Path Connection Status 213
- PVC Connection Status 215
- Time Slot Assignment Status 218
- Timeslot Assignment Status 219
- DBM Interface Status 220
- (continued) 222
- Link Name: 222
- IP Routing Table 230
- Column What It Indicates 231
- Performance Statistics 232
- Service Level Verification 234
- Statistic What It Indicates 235
- DLCI Performance Statistics 239
- Configuring Class of 241
- Service Definitions 241
- Configuration Options 241
- Frame Relay 242
- ESF Line 246
- Clear All Statistics 249
- Ethernet 250
- Trap Event Log 251
- Modem Operation 252
- Verifying Modem Operation 253
- ISDN DBM Operation 254
- Verifying ISDN Lines 256
- FTP File Transfers 257
- Upgrading System Software 259
- Changing Software 261
- Transferring Collected Data 262
- Troubleshooting 265
- Problem Indicators 266
- LMI Packet Capture Utility 270
- Display LMI Trace Log 270
- Viewing the Trap Event Log 278
- Troubleshooting Tables 278
- Restoring 279
- Communication with an 279
- Improperly Configured Unit 279
- Frame Relay PVC Problems 280
- ISDN DBM Problems 281
- Tests Available 282
- Test Timeout Feature 283
- DBM Tests 283
- Starting and Stopping a Test 284
- Aborting All Tests 285
- PVC Tests 286
- PVC Loopback 287
- Send Pattern 288
- Monitor Pattern 288
- Connectivity 289
- Test Call 289
- Physical Tests 290
- Line Loopback 291
- CAUTION: 291
- Payload Loopback 292
- Repeater Loopback 293
- DTE Loopback 294
- Send Line Loopback 295
- Send Remote Line Loopback 297
- IP Ping Test 299
- IP Ping Test – Procedure 1 303
- Lamp Test 304
- Setting Up FrameSaver Support 307
- The Activation Certificate 309
- Scheduling Activations 312
- FrameSaver Devices 315
- Preparation 316
- NetScout Probe User Guide 317
- Verifying Domains and Groups 319
- Correcting Domains and Groups 320
- NetScout Manager/Plus & 321
- Editing Alarms 323
- Adding SLV Alarms Manually 324
- Administrator Guide 324
- Configuring Alarms in 326
- Creating History Files 327
- Statistical Windows Supported 334
- Grouping Elements for Reports 339
- About Service Level Reports 340
- About At-a-Glance Reports 340
- About Trend Reports 341
- Printed Reports 341
- Network Health Reports Guide 344
- Menu Hierarchy 345
- Auto-Configuration 347
- A. Menu Hierarchy 348
- Alarm Defaults 349
- MIB Support 350
- System Group (mib-2) 351
- Interfaces Group (mib-2) 351
- Trap: warmStart 357
- Trap: authenticationFailure 357
- Traps: linkUp and linkDown 358
- Strings: 359
- Traps: enterprise-Specific 361
- Traps: RMON-Specific 364
- Trap: dialControl 365
- RMON Alarm and Event Defaults 366
- Object ID (OID) 375
- Item MIB/Tag 375
- Object ID (OID) Item MIB/Tag 380
- Designations 383
- Pager Command 385
- Access Control Commands 385
- Configuration Commands 386
- Interface Commands 387
- IP Routing Commands 390
- Bridge Commands 391
- out-access-list-200num 392
- ARP Commands 393
- NAT Commands 394
- DHCP Server Commands 397
- DHCP Relay Agent Commands 400
- Filter (access-list) Commands 401
- Diagnostic Commands 405
- Show Commands 407
- Ethernet Type Codes 411
- ICMP Designations 413
- TCP Port Designations 415
- UDP Port Designations 416
- Shortcuts 417
- Show Command Summary 418
- Command Function 419
- CLI Command Summary 420
- CLI Command Default Settings 422
- Connectors, Cables, and Pin 423
- Assignments 423
- 02-17141 424
- 00-16840 424
- 00-16850 425
- COM Port Connector 426
- 98-16166 427
- 98-16167 428
- COM Port-to-Router Cables 429
- Gender Adapter/Changer 432
- DTE Port Connector 433
- Standard V.35 Crossover Cable 434
- DSX-1 Connector 435
- Ethernet Port Connector 438
- Modem Connector 439
- ISDN DBM Connector 439
- Technical Specifications 441
- Specification Criteria 442
- Equipment List 449
- Description 450
- Model/Feature 450
- Numerics 455
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