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Figure 325: T1600 Router Cooling System and Airflow

The cooling system has redundant components, which are controlled by the host

subsystem. If one of the fans fails, the host subsystem increases the speed of the

remaining fans to provide sufficient cooling for the router indefinitely.

The host subsystem monitors the temperature of the router components. When the

router is operating normally, the fans function at lower than full speed. If a fan fails, the

speed of the remaining fans is automatically adjusted to keep the temperature within

the acceptablerange. Cooling system components can be removed and replaced without

powering down or disconnecting power to the router. Figure 326 on page 640 shows the

T1600 router cooling system components.

Chapter 31: Monitoring Redundant Cooling System Components

Default Chapter1
- Series and T Series Routers1
- Table of Contents3
- About the Documentation39
- Junos Documentation and Release Notes39
- Objectives39
- Audience40
- Supported Routing Platforms40
- About the Documentation41
- Document Conventions41
- Table 1: Notice Icons41
- Table 2: Text and Syntax Conventions41
- Using the Index41
- Documentation Feedback42
- Requesting Technical Support43
  - Self-Help Online Tools and Resources43
  - Opening a Case with JTAC43
- Juniper Networks M Series and T Series Routers45
  - M Series Multiservice Edge Routers45
  - T Series Core Routers45
Chapter 1 M Series Multiservice Edge Routers47
- M5 and M10 Internet Router Overview48
- Figure 1: M5 and M10 Routers48
- M5 and M10 Router Components49
- Table 3: M5 and M10 Router Major Hardware Components49
- M7I Multiservice Edge Router Overview50
- Figure 2: M7I Router50
- M7I Router Components51
- Table 4: M7I Router Major Hardware Components51
- M10I Multiservice Edge Router Overview52
- Figure 3: M10I Router52
- M10I Router Components53
- Table 5: M10I Router Major Hardware Components53
- M20 Internet Router Overview54
- M20 Router Components55
- Figure 4: M20 Router55
- Table 6: M20 Router Major Hardware Components56
- M40 Router Overview57
- Figure 5: M40 Router57
- M40 Router Components58
- Table 7: M40 Router Major Hardware Components58
- M40E Multiservice Edge Router Overview59
- Figure 6: M40E Router59
- M40E Router Major Hardware Components60
- Table 8: M40E Router Major Hardware Components60
- M120 Multiservice Edge Router Overview61
- Figure 7: Front View of an M120 Router61
- Figure 8: Rear View of an AC M120 Router62
- M120 Router Major Hardware Components63
- Figure 9: Rear View of a DC M120 Router63
- Table 9: M120 Router Major Hardware Components63
- M160 Internet Router Overview65
- Figure 10: M160 Router65
- M160 Router Major Hardware Components66
- Table 10: M160 Router Major Hardware Components66
- M320 Multiservice Edge Router Overview67
- M320 Router Major Hardware Components68
- Figure 11: M320 Router68
- Table 11: M320 Router Major Hardware Components69
Chapter 2 T Series Core Routers71
- T320 Core Router Overview71
- Figure 12: Front View of the T320 Router72
- Figure 13: Rear View of the T320 Router73
- T Series Core Routers73
- T320 Router Major Hardware Components74
- Table 12: T320 Router Major Hardware Components74
- T640 Core Router Overview75
- Figure 14: T640 Router76
- T640 Router Major Hardware Components77
- Table 13: T640 Router Major Hardware Components77
- T1600 Core Router Overview78
- Figure 15: Front View of the T1600 Router79
- Figure 16: Rear View of the T1600 Router80
- T1600 Router Major Hardware Components81
- Table 14: T1600 Router Major Hardware Components82
- TX Matrix Router Overview83
- Figure 17: Front View of a TX Matrix Router84
- Figure 18: Rear View of a TX Matrix Router85
- TX Matrix Router Major Hardware Components86
- Table 15: TX Matrix Router Major Hardware Components86
- TX Matrix Plus Router Overview87
- Figure 19: Front View of a TX Matrix Plus Router88
- TX Matrix Plus Router Major Hardware Components89
- Figure 20: Rear View of a TX Matrix Plus Router89
- Table 16: TX Matrix Plus Router Major Hardware Components89
- Methodology and Tools for Monitoring Router Components93
  - Method and Tools for Monitoring Router Components93
Chapter 3 Method and Tools for Monitoring Router Components95
- Basic Router Component Monitoring Method95
- Figure 21: Basic Method for Monitoring Router Components95
- Basic Router Component Monitoring Tools96
- Table 17: Basic Tools for Monitoring Router Components96
- Common Operational Mode Commands to Monitor Router Components100
- Table 18: Operational Mode Commands for Router Monitoring101
- Using the Basic Monitoring Method103
- Check the Router Component Status104
- Gather Component Alarm Information111
- Verify the Component Problem158
- Fix the Problem158
- Contact JTAC159
- Return the Failed Component160
- Monitoring Key and Common Router Components161
  - Monitoring Key Router Components161
Chapter 4 Monitoring Key Router Components163
- Understanding Key Router Components163
- Packet Forwarding Engine164
- Figure 22: Router Architecture164
- Table 36: Packet Forwarding Engine Forwarding Rate and Aggregate Throughput Characteristics Per Routing Platform164
- Table 37: Router Packet Forwarding Engine Components Per Routing165
- Data Flow through the Router Packet Forwarding Engine166
- Routing Engine181
Chapter 5 Monitoringtherouterchassis186
- Router Chassis Overview186
- Figure 36: M5 and M10 Router Chassis and Components187
- Figure 37: M7I Router Chassis and Components187
- Figure 38: M10I Router Chassis and Components188
- Figure 39: M20 Router Chassis and Components188
- Figure 40: M40 Router Chassis and Components189
- Figure 41: M40E Router Chassis and Components189
- Figure 42: M120 Router Chassis and Components190
- Figure 43: M160 Router Chassis and Components191
- Figure 44: M320 Router Chassis and Components191
- Figure 45: Front View of the T320 Router192
- Figure 46: Front View of the T320 Router193
- Figure 47: T640 Router and Components194
- Figure 48: Front View of the T1600 Router195
- Figure 49: Rear View of the T1600 Router196
- Figure 50: Front View of the TX Matrix Router197
- Figure 51: Rear View of the TX Matrix Router198
- Figure 52: Front View of the TX Matrix Plus Router199
- Figure 53: Rear View of the TX Matrix Plus Router200
- Check the Router Chassis Component Status200
  - Display the Hardware Components Installed in the Router Chassis200
  - Check the Component Environmental Status201
  - Check the Component Status from the Craft Interface202
- Check Router Alarms203
  - Display Component Error Messages in the System Log File205
  - Display Component Errors in the Chassis Daemon Log File205
- Verify Router Component Failure206
- Replace a Failed Component206
- Table 39: Checklist for Monitoring the Routing Engine209
Chapter 6 Monitoringtheroutingengine212
- Understanding the Routing Engine212
  - Routing Engine Types and Characteristics213
  - Table 40: Routing Engine Characteristics Per Routing Platform213
  - Figure 54: M7I and M10I Router Routing Engine214
  - Figure 55: M5, M10, M20, M40, M40E, M120 and M160 Router Routing214
  - Figure 56: M320 Router Routing Engine215
  - Figure 57: T320, T640, T1600, and TX Matrix Router Routing Engine215
  - Figure 58: TX Matrix Plus Router Routing Engine216
  - Routing Engine Locations216
  - Figure 59: M5, M10, and M20 Router Routing Engine Location216
  - Figure 60: M7I and M10I Router Routing Engine Location217
  - Figure 61: M40 Router Routing Engine Location217
  - Figure 62: M40E and M160 Router Routing Engine Location218
  - Figure 63: M120 Routing Engine Location219
  - Figure 64: M320 Router Routing Engine Location219
  - Figure 65: T320, T640, and T1600 Routing Engine Location220
  - Routing Engine Redundancy220
  - Table 41: Redundant Routing Engines221
- Monitor the Routing Engine Status222
- Check the Detailed Routing Engine Status223
- Check the Routing Engine Leds224
  - Check the M7I Routing Engine Leds224
  - Figure 66: M10I Routing Engine Leds225
  - Table 42: M7I Router Routing Engine LED States225
  - Check the M10I Router Routing Engine Leds225
  - Table 43: M10I Router Routing Engine Leds and Buttons225
  - Check the M20 Router Routing Engine Leds226
  - Figure 67: M20 Router Craft Interface Routing Engine Leds and Buttons226
  - Table 44: M20 Router Routing Engine Leds and Buttons226
  - Figure 68: M20 Router Routing Engine Panel227
  - Table 45: Routing Engine Panel Leds227
  - Check the M40 Router Routing Engine Leds227
  - Figure 69: M40 Routing Engine Panel228
  - Table 46: M40 Router Routing Engine Leds228
  - Check the M120 Router Routing Engine Leds228
  - Figure 70: Front Panel of the M120 Craft Interface229
  - Figure 71: M40E and M160 Router Redundant Host Module Leds229
  - Table 47: M120 Routing Engine LED229
  - Figure 72: M320 Router Redundant Host Module Leds230
  - Check the M320 Router Routing Engine Leds230
  - Table 48: M40E and M160 Router Host Module Leds230
  - Table 49: M320 Router Host Subsystem Leds230
  - Figure 73: T320 Router Redundant Host Module Leds231
  - Table 50: T320 Router Host Subsystem Leds231
  - Figure 74: T640 Router Redundant Host Module Leds232
  - Figure 75: T1600 Router Redundant Host Module Leds232
  - Check the T1600 Router Routing Engine Leds232
  - Table 51: T640 Router Host Subsystem Leds232
  - Figure 76: TX Matrix Router Redundant Host Module Leds233
- Check the Tx Matrix Router Routing Engine Leds233
- Table 52: T1600 Router Host Subsystem Leds233
- Table 53: TX Matrix Router Host Subsystem Leds233
- Check the Tx Matrix Plus Router Routing Engine Leds234
- Figure 77: TX Matrix Plus Router Routing Engine RE-C2600 Leds234
- Table 54: TX Matrix Plus Routing Engine RE-C2600 Leds234
- Verify Routing Engine Failure239
- Check Core Files if the Routing Engine Reboots240
  - List the Core Files Generated after a Crash Occurs240
  - Display the Messages Log File after a Crash Occurs240
  - Display the Log File When Kernel Crash Core File Is Not Generated241
- Check for Compactflash Card and Hard Disk Failure241
  - When the Compactflash Card Is Removed from the Boot List242
  - Determine Why Compactflash Card DID Not Mount242
  - When the Hard Disk Is Removed from the Boot List243
  - Verify that the Hard Disk DID Not Mount243
  - Verify that the Hard Disk Is Missing from the Boot List244
  - View Alarms When Media Is Removed from the Boot List244
- Understand What Happens When Memory Failures Occur245
- Check the Router File System and Boot Disk245
- Table 55: Storage Media Device Names245
- Display the Current Routing Engine Alarms246
- Display Error Messages in the System Log File247
- Document the Events Prior to the Failure247
- Display Routing Engine Hardware Information248
- Locate the Routing Engine Serial Number ID Label248
- Figure 78: M10I Router Routing Engine Serial Number ID Label Location249
- Figure 79: Routing Engine Serial Number ID Label Location for All Routers250
- M40 Router Routing Engine Serial Number ID Label Location250
- Figure 80: M40 Router Routing Engine Serial Number ID Label251
- Figure 81: M120 Routing Engine Serial Number Label251
- Figure 82: M320 Router Routing Engine Serial Number ID Label Location252
- Figure 83: T320 Router and T640 Router Routing Engine Serial Number ID252
- Figure 84: T1600 Router Routing Engine Serial Number ID Label253
- Figure 85: TX Matrix Router Routing Engine Serial Number ID Label Location254
- Figure 86: TX Matrix Plus Router Routing Engine Serial Number ID Label254
- Removing a Routing Engine255
- Table 56: Checklist for Monitoring Fpcs257
Chapter 7 Monitoringfpcs259
- Understanding Fpcs259
- Table 57: FPC Characteristics Per Routing Platform259
- Figure 87: FPC Numbering260
- Checking the Fpc Status260
- Checking for Fpc Alarms264
- Verifying Fpc Failure268
- Display the Fpc Hardware Information272
- Locating the Fpc Serial Number ID Label272
- Figure 89: M20 Router FPC Serial Number ID Label273
- Figure 90: M40 Router FPC Serial Number ID Label273
- Figure 91: M40E and M160 Router FPC Serial Number ID Label274
- Figure 92: M120 FPC Serial Number Label274
- Figure 93: M320 FPC Serial Number ID Label275
- Figure 94: T320 Router FPC Serial Number ID Label276
- Figure 95: T640 Router FPC Serial Number Label277
- Figure 96: T1600 Router FPC Serial Number Label278
- Replace the Fpc278
- Table 60: Checklist for Monitoring Pics279
Chapter 8 Monitoringpics280
- Pics Overview280
- Table 61: PIC Characteristics Per Routing Platform280
- Figure 97: PIC Location, Row, and Slot Numbering282
- Checking the Pic Status283
- Checking Pic Alarms286
  - Checking the Current Chassis Alarms286
  - Display the Error Messages in the System Log File286
- Verifying Pic Failure287
Chapter 9 Monitoring the Craft Interface293
- Checklist for Monitoring the Craft Interface293
- Table 63: Checklist for Monitoring the Craft Interface294
- Figure 103: M5 and M10 Router Craft Interface296
- Figure 104: M20 Router Craft Interface296
- Understanding the Craft Interface296
- Figure 105: M40 Router Craft Interface297
- Figure 106: M40E and M160 Router Craft Interface297
- Figure 107: M120 Router Craft Interface297
- Figure 108: M320 Router Craft Interface298
- Figure 109: T320, T640 and T1600 Router Craft Interface298
- Figure 110: TX Matrix Router Craft Interface298
- Figure 111: TX Matrix Plus Router Craft Interface299
- Table 64: Router Craft Interface Characteristics Per Routing Platform299
- Monitoring the Craft Interface Status300
- Viewing Craft Interface Information from the Command Line302
- Verifying Craft Interface Failure303
  - Display Craft Interface Error Messages in the System Log File304
  - Displaying Craft Interface Messages in the Chassis Daemon Log File304
  - Displaying Craft Interface Hardware Information305
- Replacing the Craft Interface306
- Figure 112: Removing the Lower Impeller Tray307
- Figure 113: Removing the Front Upper Impeller Assembly307
- Figure 114: Removing the M120 Craft Interface308
- Figure 115: Removing the M320 Router Craft Interface309
- Figure 116: Removing the TX Matrix Router Craft Interface310
- Figure 117: Removing the TX Matrix Plus Router Craft Interface311
- Locating the Craft Interface Serial Number ID Label311
  - Figure 118: M20 Router Craft Interface Serial Number ID Label312
  - Figure 119: M40 Router Craft Interface Serial Number ID Label312
  - Figure 120: M40E and M160 Router Craft Interface Serial Number ID Label313
  - Figure 121: M120 Router Craft Interface Serial Number ID Label313
  - Figure 122: M320 Router Craft Interface Serial Number ID Label314
  - Figure 123: T320, T640, and T1600 Router Craft Interface Serial Number ID314
  - Figure 124: TX Matrix Router Craft Interface Serial Number ID Label315
  - Figure 125: TX Matrix Plus Router Craft Interface Serial Number ID Label315
  - Returning the Craft Interface315
  - Table 65: Checklist for Monitoring Power Supplies317
Chapter 10 Monitoringpowersupplies319
- Understanding Power Supplies319
- Table 66: M Series Routers Power Supply Characteristics320
- Table 67: T Series Routers Power Supply Characteristics320
- Figure 126: M5 and M10 Router Power Supplies321
- Figure 127: M7I Router Power Supplies322
- Figure 128: M10I Router Power Supplies323
- Figure 129: M20 Router Power Supplies324
- Figure 130: M40 Router Power Supplies325
- Figure 131: M40E Router Power Supplies326
- Figure 132: M120 Router AC Power Supply327
- Figure 133: M120 Router DC Power Supply328
- Figure 134: M160 Router Power Supplies329
- Figure 135: M320 Router Power Supplies330
- Figure 136: T320 Router Power Supplies Location331
- Figure 137: T640 Router Power Supplies332
- Figure 138: TX Matrix Router 160-A DC Power Supply333
- Table 68: Supported Power Supplies333
- Figure 139: TX Matrix Router 240-A DC Power Supply334
- Table 69: Supported Power Supplies334
- Figure 140: TX Matrix Plus Router Power Supply335
- Checking the Power Supply Cables335
- Checking the Power Supply Status336
  - Check the Power Supply Environmental Status336
  - Check the Power Supply Leds337
  - Table 70: M5 and M10 Router Power Supply LED and Self-Test Button338
  - Table 71: M7I and M10I Router AC/DC Power Supply LED338
  - Table 72: M20 Router Power Supply Leds338
  - Table 73: M40 Router Power Supply Leds338
  - Table 74: M40E Router AC Power Supply LED339
  - Table 75: M40E Router DC Power Supply Leds339
  - Table 76: M120 Router Power Supply LED339
  - Table 77: M160 Router Power Supply Leds340
  - Table 78: M320 Router AC/DC Power Supply LED340
  - Table 79: T320 Router DC Power Supply LED341
  - Table 80: T640 Router Power Supply Leds341
  - Table 81: T1600 Router DC Power Supply Leds341
  - Table 82: T1600 Router Delta AC Power Supply Leds342
  - Table 83: TX Matrix Router Two-Input 160-A DC Power Supply Leds343
  - Table 84: TX Matrix Router Three-Input 240-A DC Power Supply Leds343
  - Table 85: TX Matrix Plus Router Power Supply Leds344
- Checking for Power Supply Alarms345
  - Displaying Current Power Supply Alarms345
  - Table 86: Power Supply Alarms345
  - Display Power Supply Error Messages in the System Log File348
  - Display Power Supply Error Messages in the Chassis Daemon Log File348
- Verifying Power Supply Failure349
  - Test the Power Supply352
- Getting Power Supply Hardware Information352
  - Displaying the Power Supply Hardware Information352
  - Table 87: Power Supply Serial Number ID Label Locations on M Series and T353
  - Figure 141: M5 and M10 Router Power Supply Serial Number ID Label354
  - Figure 142: M7I Router Power Supply Serial Number ID Label354
  - Figure 143: M10I Router Power Supply Serial Number ID Labels355
  - Figure 144: M20 Router Power Supply Serial Number ID Label355
  - Figure 145: M40 Router Power Supply Serial Number ID Label356
  - Figure 146: M40E Router AC Power Supply Serial Number ID Label356
  - Figure 147: M40E and M160 Router DC Power Supply Serial Number ID Label357
  - Figure 148: M120 AC Power Supply Serial Number Label357
  - Figure 149: M120 DC Power Supply Serial Number Label358
  - Figure 150: M320 Router AC and DC Power Supply Serial Number ID Label358
  - Figure 151: T320 Router DC Power Supply Serial Number ID Label359
  - Figure 152: T640, T1600, and TX Matrix Router DC Power Supply Serial Number359
  - Figure 153: TX Matrix Plus Router DC Power Supply Serial Number Label360
- Replacing the Power Supplies360
- Table 88: Checklist for Monitoring the Cooling System361
Chapter 11 Monitoringthecoolingsystem362
- Understanding the Cooling System362
- Table 89: M Series Routers Cooling System Components Per Routing363
- Table 90: T Series Routers Cooling System Components Per Routing363
- Figure 154: M5 and M10 Router Cooling System and Airflow364
- Figure 155: M7I Router Cooling System and Airflow365
- Figure 156: M10I Router Cooling System and Airflow365
- Figure 157: M20 Router Cooling System Components366
- Figure 158: M20 Router Cooling System and Airflow366
- Figure 159: M40 Router Impeller Trays367
- Figure 160: M40 Router Air Filter and Fan Tray368
- Figure 161: M40 Router Cooling System and Airflow368
- Figure 162: M40E and M160 Router Cooling System Components370
- Figure 163: M40E and M160 Router Cooling System and Airflow371
- Figure 164: Airflow through the M120 Router Chassis372
- Figure 165: M120 Router Front Fan Tray372
- Figure 166: M120 Router Rear Fan Tray372
- Figure 167: M320 Router Cooling System and Airflow373
- Figure 168: M320 Router Cooling System and Airflow374
- Figure 169: T320 Router Cooling System Components375
- Figure 170: T320 Router Cooling System and Airflow375
- Figure 171: T640 Router Cooling System Components376
- Figure 172: T640 Router Cooling System and Airflow376
- Figure 173: Quiet Upper Front Fan Tray377
- Figure 174: Quiet Lower Front Fan Tray377
- Figure 175: T1600 Router Cooling System Components378
- Figure 176: T1600 Router Cooling System and Airflow378
- Figure 177: TX Matrix Router Cooling System Components380
- Figure 178: TX Matrix Router Cooling System and Airflow380
- Figure 179: TX Matrix Plus Router Cooling System Components382
- Figure 180: TX Matrix Plus Router Cooling System and Airflow382
- Checking the Cooling System Status383
- Checking the Cooling System Alarms389
  - Check the Alarm Indicators on the Craft Interface389
  - Display Current Cooling System Alarms390
  - Table 91: Cooling System Alarm Messages390
  - Display Cooling System Error Messages in the System Log File392
- Maintaining the Air Filter393
- Verifying a Fan Failure393
- Verifying an Impeller Failure393
- Replacing a Cooling System Component394
Chapter 12 Maintaining the Cable Management System, Cables, and Connectors395
- Understanding the Cable Management System, Cables, and Connectors396
- Figure 181: M5 and M10 Router Cable Management System397
- Figure 182: M10I Router Cable Management System398
- Figure 183: M20 Router Cable Management System398
- Figure 184: M40 Router Cable Management System and Cover399
- Figure 185: M40E and M160 Routers Cable Management System399
- Figure 186: M120 Router Cable Management System400
- Figure 187: M320 Router Cable Management System400
- Figure 188: T320 Router, T640 Router, and T1600 Router Cable Management401
- Figure 189: TX Matrix Router Cable Management System402
- Figure 190: TX Matrix Plus Rear Cable Management System403
- Maintaining the Pic Cables403
- Maintaining the Pic Fiber-Optic Cable404
- Cleaning the Transceivers405
- Checking the Pic Port Status405
  - Check the Pic or Fpc Led Status405
  - Table 93: M5, M10, and M20 Router PIC Leds405
  - Table 94: M40E, M160, T320, and T640 Router FPC Leds406
  - Display the Pic Media Type406
- Maintaining the Power Cables407
- Replacing the Cable Management System408
- Maintaining Routing Engine External Cables408
- Table 95: Checklist for Monitoring the Host Subsystem411
- Table 92: Checklist for Maintaining Cables and Connectors395
Chapter 13 Monitoring the Host Subsystem412
- Understanding the Host Subsystem412
- Figure 191: M120 Router Routing Engine Component413
- Figure 192: M320 Router Routing Engine Component413
- Figure 193: T320, T640, and T1600 Router Routing Engine Component414
- Figure 194: TX Matrix Router Routing Engine Component414
- Figure 195: TX Matrix Plus Router Routing Engine Component415
- Figure 196: M120 Router Control Board Component416
- Figure 197: M320 Router Control Board Component416
- Figure 198: T320 Router Control Board Component416
- Figure 199: T640 Router Control Board Component417
- Figure 200: T1600 Router Control Board Component417
- Figure 201: TX Matrix Router Control Board Component418
- Figure 202: TX Matrix Router Control Board Component419
- Checking the Host Subsystem Status419
- Figure 203: M120 Router Host Subsystem Craft Interface Leds420
- Figure 204: M320 Router Host Subsystem Craft Interface Leds420
- Table 96: M120 Router Host Subsystem Craft Interface Leds420
- Figure 205: T320, T640, and T1600 Router Host Subsystem Craft Interface421
- Table 97: M320 Router Routing Engine Craft Interface Leds421
- Table 98: T320, T640, and T1600 Router Host Subsystem Craft Interface421
- Figure 206: TX Matrix Router Host Subsystem Craft Interface Leds422
- Table 99: TX Matrix Router Host Subsystem Craft Interface Leds422
- Checking the Routing Engine Status422
- Checking the Control Board Status423
Chapter 14 Monitoring Control Boards425
- Checklist for Monitoring the Control Board425
- Table 100: Checklist for Monitoring the Control Board426
- Figure 207: M320 Router Control Board Component427
- Figure 208: T320 Router Control Board Component428
- Figure 209: T640 Router Control Board Component428
- Figure 210: T1600 T Series Control Board (T-CB)429
- Figure 211: T1600 Line-Card Chassis Control Board (LCC-CB)429
- Figure 212: TX Matrix Router Control Board (TX-CB)429
- Tx Matrix Plus Router Control Board430
- Figure 213: TX Matrix Plus Router Control Board (TXP-CB)430
- Figure 214: M320, T320, T640, and T1600 Router Control Board Location431
- Figure 215: TX Matrix Router and TX Matrix Plus Router Control Board432
- Monitor the Control Board Status432
  - Check the Control Board Status from the Craft Interface433
  - Table 101: T320, T640 and T1600 Router Host Subsystem Craft Interface434
  - Table 102: TX Matrix Router Host Subsystem Craft Interface Leds434
  - Table 103: Control Board Alarm Messages435
  - Display Control Board Alarms435
  - Check the Control Board Leds435
  - Table 104: Control Board Leds436
- Verify Control Board Failure437
- Figure 216: Component Fuses in the M320 Router Midplane438
- Locate the Control Board Serial Number ID Label440
- Figure 217: M320 Router Control Board Serial Number ID Label Location440
- Figure 218: T320 Router and T640 Router Control Board Serial Number ID441
- Figure 219: T1600 Router Control Board Serial Number ID Label441
- Figure 220: TX Matrix Router Control Board Serial Number ID Label442
- Figure 221: TX Matrix Plus Router Control Board Serial Number ID Label443
Chapter 15 Monitoring the Scgs445
- Checklist for Monitoring the Scg445
- Table 105: Checklist for Monitoring the SCG446
- Scg Overview446
- Figure 222: SCG Component447
- Figure 223: T320, T640, and T1600 Router SCG Location447
- Monitor the Scg Status448
- Determine Scg Mastership450
- Display Scg Alarms451
- Verify Scg Failure452
  - Check the Scg Connection453
  - Perform an Scg Swap Test453
- Get Scg Hardware Information454
Chapter 16 Monitoringthesibs457
- Monitoring the Sibs457
- Table 108: Checklist for Monitoring the Sibs458
- Understanding the Sibs458
- Monitoring the Sib Status465
- Displaying Sib Alarms468
- Verifying Sib Failure470
- Getting Sib Hardware Information472
- Returning the Sib475
- Monitoring M40E and M160 Router-Specific Components477
- Table 112: Checklist for Monitoring the Host Module479
Chapter 17 Monitoringthehostmodule479
- Host Module Overview479
- Figure 238: Routing Engine480
- Figure 239: Miscellaneous Control Subsystem480
- Figure 240: M40E and M160 Router Host Module Location481
- Check the Host Module Status481
- Figure 241: M40E and M160 Router Host Module Leds on the Craft Interface482
- Table 113: M40E and M160 Router Host Module Leds482
- Check the Routing Engine Status482
Chapter 18 Monitoring the Sfms485
- Checklist for Monitoring the Sfms485
- Table 114: Checklist for Monitoring the Sfms486
- Sfm Overview486
- Figure 242: SFM Component487
- Figure 243: M40E and M160 Router SFM Location487
- Monitor the Sfm Status488
- Table 115: SFM Leds490
- Display Sfm Alarms491
  - Display Current Sfm Alarms491
  - Figure 244: M40E M160 Router Fuses494
- Obtain Sfm Hardware Information495
  - Locate the Sfm Serial Number ID Label496
  - Figure 245: SFM Serial Number ID Label496
- Replace the Sfm496
Chapter 19 Monitoring the Mcs499
- Checklist for Monitoring the Mcs499
- Mcs Overview500
- Verifying Mcs Failure504
- Getting Mcs Hardware Information506
  - Locate the Mcs Serial Number ID Label507
  - Figure 250: MCS Serial Number ID Label507
- Returning the Mcs507
Chapter 20 Monitoring the Pcg509
- Checklist for Monitoring the Pcg509
- Table 119: Checklist for Monitoring the PCG510
- Figure 251: PCG Component511
- Pcg Overview511
- Figure 252: M40E and M160 Router PCG Location512
- Monitor the Pcg Status512
- Determine Pcg Mastership514
  - Display the Pcg Master in the Craft Interface Output514
  - Check the Pcg Led States for Pcg Mastership on the Faceplate515
- Display Pcg Alarms516
- Verify Pcg Failure518
- Obtain Pcg Hardware Information519
  - Locate the Pcg Serial Number ID Label520
  - Figure 254: PCG Serial Number ID Label520
- Replace the Pcg520
Chapter 21 Monitoring the Cip523
- Checklist for Monitoring the Cip523
- Table 121: Checklist for Monitoring the CIP524
- Cip Overview524
- Figure 255: CIP Component525
- Figure 256: M40E and M160 Router CIP Location526
- Monitor the Cip Status526
- Check for Cip Alarms527
- Verify Cip Failure528
  - Check the Cip Connection528
- Get Cip Hardware Information530
  - Display Cip Hardware Information530
  - Figure 257: CIP Serial Number ID Label531
- Replace the Cip531
- Monitoring M40 Router-Specific Components533
Chapter 22 Monitoring the Scb535
- Checklist for Monitoring the Scb535
- Scb Overview536
- Figure 258: SCB Component536
- Table 122: Checklist for Monitoring the SCB536
- Figure 259: M40 Router SCB Location537
- Monitor the Scb Status538
- Check for Scb Alarms540
  - Display Scb Error Messages in the System Log File540
  - Display Scb Error Messages in the Chassis Daemon Log File541
- Verify Scb Failure542
- Obtain Scb Hardware Information544
- Return the Scb545
- Monitoring M20 Router-Specific Components547
Chapter 23 Monitoring the Ssb549
- Checklist for Monitoring the Ssb549
- Table 124: Checklist for Monitoring the SSB550
- Ssb Overview550
- Figure 262: SSB Component551
- Figure 263: M20 Router SSB Location551
- Monitor the Ssb Status552
- Obtain Ssb Hardware Information557
- Monitoring M7I and M10I Router-Specific Components559
Chapter 24 Monitoring the Cfeb561
- Checklist for Monitoring the Cfeb561
- Table 126: Checklist for Monitoring the CFEB562
- Cfeb Overview563
- Figure 266: M7I Router CFEB564
- Figure 267: M7I Router CFEB with ASP-I564
- Figure 268: M10I Router CFEB Component565
- Figure 269: M7I and M10I Router CFEB Location565
- Monitor the Cfeb Status565
  - Display the Cfeb Detailed Status566
  - Table 127: CFEB Leds567
- Check for Cfeb Alarms567
- Verify Cfeb Failure570
  - Check the Cfeb Uptime570
- Obtain Cfeb Hardware Information573
- Return the Cfeb574
Chapter 25 Monitoring the Hcm575
- Checklist for Monitoring the Hcm575
- Table 129: Checklist for Monitoring the HCM576
- Hcm Overview576
- Obtain Hcm Hardware Information585
Chapter 26 Monitoring the Fic587
- Checklist for Monitoring the Fic587
- Figure 274: M7I Router FIC with Fast Ethernet Ports588
- Table 132: Checklist for Monitoring the FIC588
- Understanding the Fic588
- Monitor the Fic Status590
  - Display Fic Status at the Command Line590
  - Check Fic Leds590
- Display Fic Alarms591
- Display Fic Hardware Information592
  - Display the Fic Hardware Information592
  - Display the M7I Router Chassis Serial Number592
- Monitoring M5, M10 and M120 Router-Specific Components595
Chapter 27 Monitoring the Feb597
- Checklist for Monitoring the Feb597
- Table 134: Checklist for Monitoring the FEB598
- Feb Overview598
- Figure 278: FEB Component599
- Figure 279: M5 and M10 Router FEB Location599
- Monitor the Feb Status599
  - Display the Feb Environmental Status600
  - Display the Feb Detailed Status600
- Verify Feb Failure601
- Obtain Feb Hardware Information603
- Monitoring Redundant Router Components605
Chapter 28 Host Redundancy Overview607
- Checklist for Host Redundancy607
- Table 135: Checklist for Host Redundancy609
- Figure 281: M10I Router Redundant Routing Engines and Hcms610
- Figure 282: M20 Router Redundant Routing Engines and Ssbs610
- Figure 283: M40E and M160 Router Redundant Host Modules611
- M120 Router Redundant Host Subsystems611
- Figure 284: M120 Router Redundant Host Subsystems612
- Figure 285: M320 Router, T320 Router, T640, and T1600 Router Redundant613
- Tx Matrix and Tx Matrix Plus Redundant Host Subsystems613
- Figure 286: TX Matrix and TX Matrix Plus Router Redundant Host614
- Figure 287: Redundancy Connection for an M10I Router615
- Redundancy Connection for an M20 Router615
- Figure 288: Redundancy Connection for an M20 Router616
- Redundancy Connection for an M40E or M160 Router616
- Figure 289: Redundancy Connection for an M40E or M160 Router617
- Figure 290: Redundancy Connection for an M120 Router617
- Figure 291: Redundancy Connection for an M320 Router618
- Redundancy Connection for a T320 Router, T640 Router, and T1600 Router618
- Figure 292: Redundancy Connection for a T320 Router, T640 Router, or T1600619
- Determine Which Routing Engine You Are Logged in to619
  - Display Routing Engine Status619
  - Display the Router Hardware620
- Determining Routing Engine Mastership621
  - Determine the Routing Engine Mastership by Checking Status621
- Manually Configue Master and Backup Routing Engines622
- Manually Switching Routing Engine Mastership625
- Table 136: Logging Events626
- Determining Why Mastership Switched626
- Avoid Redundancy Problems630
  - Synchronize Configurations632
  - Copy a Configuration File from One Routing Engine to Another632
  - Use the Proper Shutdown Process on a Backup Routing Engine633
Chapter 29 Monitoring Redundant Routing Engines635
- Checklist for Monitoring Redundant Routing Engines635
- Redundant Routing Engine Automatic Failover Overview642
- Using the Redundant Routing Engine Configuration643
- Check the Default Routing Engine Redundancy Behavior644
- Display the Redundant Routing Engines Installed in the Router644
- Display Redundant Routing Engine Mastership and Backup646
- Displaying Redundant Routing Engine Errors647
- Manually Switch from Master to Backup Routing Engine647
- Table 139: Routing Engine Mastership Election648
- Replace a Redundant Routing Engine649
- Table 140: Checklist for Monitoring Redundant Power Supplies651
- Table 141: Router Power Supply Characteristics Per Routing Platform652
Chapter 30 Monitoringredundantpowersupplies652
- Understanding Redundant Power Supplies652
- Figure 299: M5 and M10 Router Redundant Power Supplies653
- Figure 300: M7I Router Redundant Power Supplies654
- Figure 301: M10I Router Redundant Power Supplies655
- Figure 302: M20 Router Redundant Power Supplies656
- Figure 303: M40 Router Redundant Power Supplies657
- Figure 304: M40E Router Redundant Power Supplies658
- Figure 305: M160 Router Redundant Power Supplies660
- Figure 306: T1600 Router Redundant Power Supplies661
- Figure 307: TX Matrix Router Redundant Power Supplies662
- Figure 308: TX Matrix Plus Router Redundant Power Supplies663
- Table 142: Checklist for Monitoring Redundant Cooling System Components667
- Table 143: M Series Router Redundant Cooling System Components668
- Table 144: T Series Routers Redundant Cooling System Components669
Chapter 31 Monitoringredundantcoolingsystemcomponents669
- M5 and M10 Router Redundant Cooling System Components669
- Figure 309: M5 and M10 Router Cooling System and Airflow670
- Figure 310: M7I Router Cooling System and Airflow671
- Figure 311: M10I Router Cooling System Components and Airflow671
- Figure 312: M20 Router Cooling System and Airflow672
- Figure 313: M20 Router Cooling System Components673
- Figure 314: M40 Router Impeller Trays674
- Figure 315: M40 Router Air Filter and Fan Tray674
- Figure 316: M40E and M160 Router Cooling System and Airflow675
- Figure 317: M40E and M160 Router Cooling System Components676
- Figure 318: M120 Router Cooling System and Airflow677
- Figure 319: M320 Router Cooling System and Airflow678
- Figure 320: M320 Router Cooling System Components678
- Figure 321: T320 Router Cooling System and Airflow679
- Figure 322: T320 Router Cooling System Components680
- Figure 323: T640 Router Cooling System and Airflow681
- Figure 324: T640 Router Cooling System Components682
- Figure 325: T1600 Router Cooling System and Airflow683
- Figure 326: T1600 Router Cooling System Components684
- Figure 327: TX Matrix Router Cooling System and Airflow685
- Figure 328: TX Matrix Router Cooling System Components685
- Figure 329: TX Matrix Plus Router Cooling System and Airflow686
- Figure 330: TX Matrix Plus Router Cooling System Components687
- Table 145: Checklist for Monitoring Redundant Sibs693
- Table 146: SIB Packet Forwarding Characteristics694
Chapter 32 Monitoringredundantsibs694
- Understanding Redundant Sibs694
- Figure 331: M320 Router, T320 Router, T640 Router, and T1600 Router SIB695
- Figure 332: TX Matrix Router and TX Matrix Plus Router SIB Location696
- Display Redundant Sib Hardware Information697
- Display Sib Redundancy Information697
Chapter 33 Monitoring Redundant Scgs701
- Checklist for Monitoring the Redundant Scg701
- Table 147: Checklist for Monitoring the Redundant SCG702
- Redundant Scgs Overview702
- Figure 333: T320 Router T640 Router, and T1600 Redundant SCG Location703
- Monitor Redundant Scg Status704
Chapter 34 Monitoring Redundant Control Boards709
- Checklist for Monitoring Redundant Control Boards709
- Table 149: Checklist for Monitoring Redundant Control Boards710
- Redundant Control Boards Overview710
- Figure 334: M320 Router, T320 Router, T640 Router, and T1600 Router Control712
- Figure 335: TX Matrix Router and TX Matrix Plus Router Control Board713
- Display Redundant Control Board Hardware Information713
- Display Redundant Control Board Mastership714
  - Check the Redundant Control Board Environmental Status714
  - Table 150: Control Board Leds716
- Switch Control Board Mastership716
- Check the Control Board Alarms716
- Replace a Control Board716
Chapter 35 Monitoring Redundant Mcss719
- Checklist for Monitoring Redundant Mcss719
- Table 151: Checklist for Monitoring Redundant Mcss720
- Redundant Mcss Overview720
- Figure 336: M40E and M160 Router Redundant Mcss721
- Monitoring Redundant Mcs Status722
- Switch Mcs Mastership724
- Perform a Swap Test on a Redundant Mcs725
Chapter 36 Monitoringredundantsfms727
- Monitoring Redundant Sfms727
- Table 153: Checklist for Monitoring Redundant Sfms728
- Figure 337: M40E and M160 Router SFM Location730
- Check M40E Router Redundant Sfm Configuration730
- Understand M40E Router Redundant Sfm Operation731
- Understand M160 Router Redundant Sfm Operation731
- Display Redundant Sfm Hardware Information731
- Monitor Redundant Sfm Status732
- Table 154: SFM Leds735
- Display M40E Router Redundant Sfm Mastership737
  - Display Sfm Mastership at the Command Line737
  - Display Sfm Mastership Information from the Craft Interface738
- Display Redundant Sfm Alarms739
- Control Redundant Sfms742
- Replace an Sfm744
Chapter 37 Monitoring Redundant Pcgs747
- Checklist for Monitoring Redundant Pcgs747
- Table 155: Checklist for Monitoring Redundant Pcgs748
- Redundant Pcgs Overview748
- Figure 338: M40E and M160 Router PCG Location749
- Display Redundant Pcg Hardware Information749
- Monitor Redundant Pcg Status750
- Determine Redundant Pcg Mastership752
  - Display the Pcg Master from the Craft Interface752
  - Check the Pcg Leds for Mastership on the Faceplate753
- Display Pcg Failure Alarms753
- Replace a Pcg754
- Bring the Replaced Pcg Online755
- Verify that the Replaced Pcg Is Online755
  - Display the Replaced Pcg Environmental Status755
  - Display Pcg Messages in the System Log File756
Chapter 38 Monitoring Redundant Ssbs759
- Checklist for Monitoring Redundant Ssbs759
- Table 157: Checklist for Monitoring Redundant Ssbs760
- Redundant Ssbs Overview761
- Figure 339: M20 Router Redundant SSB Location762
- Display Redundant Ssb Configuration762
- Displaying Redundant Ssb Hardware Information763
- Monitor Redundant Ssb Status763
- Displaying Redundant Ssb Mastership766
- Switch Ssb Mastership770
Chapter 39 Monitoring Redundant Cfebs773
- Checklist for Monitoring the Cfebs773
- Redundant Cfebs Overview774
- Table 159: Checklist for Monitoring the CFEB774
- Figure 341: M10I Router CFEB Location775
- Display Cfeb Mastership776
  - Display the Cfeb Status776
- Table 160: CFEB Leds776
Chapter 40 Monitoring Redundant Hcms779
- Checklist for Monitoring Redundant Hcms779
- Figure 342: Redundant Hcms780
- Table 161: Checklist for Monitoring Redundant Hcms780
- Redundant Hcms Overview780
- Display Redundant Hcm Hardware Information781
- Display Hcm Status and Mastership781
  - Check the Hcm Leds781
  - Table 162: HCM Leds782
- Verify Hcm Failure784

Brand	Juniper
Model	M Series
Category	Network Router
Language	English

Juniper M Series User Manual

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Juniper M Series Specifications

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