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Cisco MGX 8850 Routing Switch Command Reference
Release 2.0, Part Number 78-10467-04 Rev C0, October 2001
Chapter 9 Troubleshooting Commands
dncon
dncon
Down Connection
Temporarily deactivates (or downs) a connection so you can modify or troubleshoot it. The dncon
command applies to only an SPVC. Execute at the master endpoint of a connection. Subsequently, when
you view commands with dspconinfo or dspcon at the master endpoint, the display shows the
connection state as down. If you execute either of these commands at the slave endpoint, the state
appears as failed.
To reactivate the connection, use upcon.
Cards on Which This Command Runs
AXSM
Syntax
dncon <ifNum> <vpi> <vci>
Syntax Description
Related Commands
upcon
Attributes
ifNum
The logical port number. The range for AXSM is 1–60.
vpi Virtual path identifier in the range 1–255 for a UNI or 1–4095 for an NNI.
vci For a virtual connection (VCC), the VCI range is 0–65535. For a virtual path
connection (VPC), the VCI is always 0.
Log: log State: active Privilege: GROUP1
- Command Reference 1
- Cisco Reader Comment Card 3
- BUSINESS REPLY MAIL 4
- CONTENTS 5
- 4 ILMI Commands 4 - 1 9
- 5 PNNI Commands 5 - 1 10
- Contents 11
- 7 SPVC and SVC Commands 7 - 1 14
- About This Manual 23
- Organization 24
- Related Documentation 25
- Conventions 26
- Command Changes 27
- Changed Commands 28
- Removed Commands 28
- The Role of the CLI 31
- Command Line Prompt 32
- Command Syntax 32
- Notation 33
- List of Commands 37
- Display Command History 43
- Command History 50
- • 0=infinite 54
- • 3=default 54
- Present Working Directory 55
- • Current username 56
- Who Am I 57
- Shelf Management Commands 59
- Add Trap Manager 67
- Burn Boot Software 72
- Clock Operation 78
- Configuring a BITS Clock 80
- Configure Date 82
- • Up to 32 letters or numbers 83
- • No spaces 83
- Maximum Card Resets 84
- Required Fan Trays 85
- Option Values 85
- Configure Serial Interface 89
- <port#> <speed> 89
- Configure Time 92
- Configure Time Zone 93
- Commit Revision 97
- Delete Trap Manager 100
- Syntax Description 101
- Related Commands 101
- Attributes 101
- Examples 105
- Clock Status 109
- Reason for Status Change 109
- Type of Clock Source 109
- Possible Sources 109
- • in locking—wideband test 110
- • in locking—narrowband test 110
- • locked 110
- Display Disk 113
- Display IP Interface Cache 117
- Display Serial Interface 124
- Display Trap Manager 126
- Display Users 127
- Version Numbering Conventions 128
- Firmware Filenames 128
- Version Numbers 128
- Usage Guidelines 130
- Load Revision 133
- 2. 1. (6.0) P1 135
- Reset System 139
- Restore All Configurations 140
- Run Revision 141
- Command Entry 162
- Identifying the AXSM Models 162
- AXSM Format 163
- PNNI Format 164
- • Line 1 165
- APS Overview 166
- Add Controller 168
- Add Feeder 171
- Add Redundancy 178
- Add Resource Partition 179
- Clear Feeder Statistics 182
- Background 187
- Syntax for SONET Line 189
- Syntax Description (SONET) 189
- Syntax for T3/E3 Line 190
- Syntax Description (T3/E3) 190
- Delete APS Line 198
- Delete Controller 199
- Delete Feeder 200
- Delete Resource Partition 201
- Down Line 206
- Down Port 207
- Display APS Backplane 208
- Display APS Lines 211
- Display ATM Line 212
- PXM45 Attributes 215
- AXSM Attributes 215
- Example SCT 2 220
- Example SCT 3 222
- Display Connection 224
- PXM45 Example 230
- AXSM Example 230
- Display Controllers 231
- Display Feeder 232
- Display Feeder Statistics 234
- Display Line 235
- AXSM Syntax 247
- AXSM Syntax Description 247
- Examples SCT 2 248
- Syntax Description 258
- Switch APS Line 263
- Switch Redundancy Card 264
- Up Local Management Interface 265
- ILMI Commands 269
- Chapter 4 ILMI Commands 271
- Clear ILMI Counters 273
- Delete Prefix 283
- Display ILMI 285
- Display ILMI Counters 287
- Display Prefix 291
- PNNI Commands 295
- PNNI Addressing 296
- Address Field Descriptions 300
- ATM Address of the Node 301
- PNNI Logical Node Identifier 301
- Peer Group Identifier 302
- Chapter 5 PNNI Commands 304
- Example 308
- Aggregation Tokens 315
- Administrative Weight 315
- • The node is enabled 326
- • The node permits branching 326
- Background Routing Tables 329
- • Link verification 331
- • Path constraint checks 331
- • The node index is 1 346
- Display Contents 350
- Objects Displayed 354
- Example of MPG 377
- Example of SPG 380
- PTSE Types 388
- Granularity of the Output 388
- Nodal State IG Parameters 391
- Uplink IG Parameters 393
- • The node-index is 1 396
- • The PTSE ID is 28 396
- RCC table 411
- Types of Address 419
- Dot Notation in ATM Addresses 423
- Clear SSCOP Statistics 438
- Configure E.164 Justification 439
- Configure Nodal Frame Discard 441
- 1. addcontroller 469
- 2. cnfpnni-intf 469
- 3. cnfspvcprfx 469
- 4. dspspvcprfx 469
- Configure Trap IP 473
- Delete Filter Set 476
- Delete Port 477
- Delete Port Access 478
- Disable SSCOP 481
- Down PNNI Port 482
- Display Address 483
- Display Enhanced IISP 486
- Output Description 494
- Display Connection Statistics 501
- Display Control VC Parameters 504
- Display Port Call Control 508
- Display Port Range 511
- Display Port Resources 512
- ILMI States 513
- Display Signaling 521
- Display Signaling Parameter 524
- Display SPVC Prefix 528
- Display SSCOP Statistics 531
- Display Trap IP 533
- SPVC and SVC Commands 537
- Before Adding a Connection 542
- Adding a Connection 542
- Traffic Parameters 542
- Routing Parameters 544
- Frame Discard 544
- Local-Only Parameters 544
- Error Messages 549
- Usage Guidelines for cnfcon 560
- Delete Connection 567
- Display CDVT Default 572
- • Number of down connections 577
- • Total number of connections 577
- PXM45 Syntax 579
- PXM45 Syntax Description 579
- The VPI has the 580
- Display MBS Default 583
- Display OAM Segment Endpoint 584
- Non-ABR Call: 586
- ABR Call: 587
- Network Optimization Commands 595
- Troubleshooting Commands 619
- • Slot 1 622
- Abort Offline Diagnostics 623
- Tabulates 625
- Add Line Loop 626
- Clear Alarm Counters 628
- Clear Diagnostics Errors 633
- Clear Diagnostics Statistics 634
- Clear Error 635
- Clear Log 639
- Clear Port Counter 640
- Clear Port Counters 641
- Generic Syntax Description 644
- Thresholds for SONET Section 645
- Thresholds for SONET Line 645
- Thresholds for SONET Path 646
- Thresholds for DS3 646
- Thresholds for E3 647
- Thresholds for PLCP 647
- Online Diagnostics 649
- PXM45 Online Diagnostics 649
- AXSM Online Diagnostics 649
- Offline Diagnostics 650
- PXM45 Offline Diagnostics 650
- AXSM Offline Diagnostics 651
- Call Control Operations 660
- Delete Channel Loopback 664
- Delete Line Loop 665
- Display Alarm Counters 673
- Display Alarms 675
- • Cells from the QE 48 684
- • Errored RM cells 684
- Display Card Status 690
- Display Channel Counters 693
- Display Channel Loopbacks 694
- Display clock alarms 698
- AXSM Syntax 703
- Display Diagnostics Errors 716
- Display Diagnostics Status 719
- • A time stamp 726
- Display Crossbar Status 759
- Misc Error Bitmap: 0x0 760
- Off Diagnostics Statistics 762
- On Diagnostics Statistics 763
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