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Port Mirroring
D-Series CLI Reference 4-31
Port Mirroring
TheD‐Seriesdeviceallowsyoutomirror(orredirect)thetrafficbeingswitchedonaportforthe
purposesofnetworktrafficanalysisandconnectionassurance.Whenportmirroringisenabled,
oneportbecomesamonitorportforanotherportwithinthedevice.
Mirroring Features
TheD‐Seriesdevicesupportsthefollowingmirroringfeatures:
• Mirroringcanbeconfiguredinamany‐to‐oneconfigurationsothatonetarget(destination)
portcanmonitortrafficonupto8sourceports.
•Bothtransmitandreceivetrafficwillbemirrored.
•Adestinationportwillonlyactasamirroringport
whenthesessionisoperationallyactive.
•Whenaportmirroriscreated,themirrordestinationportisremovedfromtheegresslistof
VLAN1afterareboot.
•MACaddresseswillbelearnedforpacketstaggedwiththemirrorVLANID.Thiswill
preventtheabilitytosnooptrafficacrossmultiple
hops.
Purpose
Toreviewandconfigureportmirroringonthedevice.
Commands
show port mirroring
Usethiscommandtodisplaythesourceandtargetportsformirroring,andwhethermirroringis
currentlyenabledordisabledforthoseports.
Syntax
show port mirroring
Parameters
None.
Caution: Port mirroring configuration should be performed only by personnel who are
knowledgeable about the effects of port mirroring and its impact on network operation.
Caution: Traffic mirrored to a VLAN may contain control traffic. This may be interpreted by the
downstream neighbor as legal control frames. It is recommended that you disable any protocols
(such as Spanning Tree) on inter-switch connections that might be affected .
For information about... Refer to page...
show port mirroring 4-31
set port mirroring 4-32
clear port mirroring 4-33
- Enterasys 1
- D-Series 1
- Contents 7
- Chapter 4: Port Configuration 9
- Chapter 5: SNMP Configuration 11
- About This Guide 25
- Related Documents 26
- Getting Help 27
- Introduction 29
- Factory Default Settings 30
- D-Series CLI Reference 1-3 31
- 1-4 Introduction 32
- Starting a CLI Session 33
- Logging In 34
- CLI Command Modes 35
- Performing Keyword Lookups 35
- Displaying Scrolling Screens 36
- Basic Line Editing Commands 37
- 1-10 Introduction 38
- Basic Configuration 39
- 2-4 Basic Configuration 42
- D-Series CLI Reference 2-5 43
- 2-6 Basic Configuration 44
- D-Series CLI Reference 2-7 45
- D-Series CLI Reference 2-9 47
- D2(rw)->clear ip address 48
- D2(su)->show ip protocol 49
- D-Series CLI Reference 2-13 51
- D-Series CLI Reference 2-15 53
- D2(su)->show time 54
- THU SEP 05 09:21:57 2002 54
- D2(su)->set time 7:50:00 54
- D-Series CLI Reference 2-17 55
- 2-18 Basic Configuration 56
- 02:00 60 57
- D2(su)->clear summertime 57
- 2-20 Basic Configuration 58
- D-Series CLI Reference 2-21 59
- 2-22 Basic Configuration 60
- D-Series CLI Reference 2-23 61
- 2-24 Basic Configuration 62
- D2(su)->set width 50 63
- D2(su)->set length 50 63
- D2(su)->set logout 10 64
- Activating Licensed Features 65
- D-Series CLI Reference 2-29 67
- 2-32 Basic Configuration 70
- Downloading a Firmware Image 71
- 2-34 Basic Configuration 72
- D-Series CLI Reference 2-35 73
- Reverting to a Previous Image 74
- 2-38 Basic Configuration 76
- D-Series CLI Reference 2-41 79
- 2-42 Basic Configuration 80
- 2-44 Basic Configuration 82
- D-Series CLI Reference 2-45 83
- 2-46 Basic Configuration 84
- D-Series CLI Reference 2-47 85
- D2(rw)->set tftp retry 3 86
- Clearing and Closing the CLI 87
- Resetting the Switch 88
- Using and Configuring WebView 89
- D2(rw)->show ssl 91
- SSL status: Enabled 91
- Switchcommand,read‐write 92
- Configuring CDP 93
- D-Series CLI Reference 3-3 95
- D2(su)->clear cdp state 97
- Parameters 100
- Defaults 100
- D-Series CLI Reference 3-9 101
- Port Configuration 105
- Examples 106
- Reviewing Port Status 107
- Port ge.3.14 enabled 108
- D2(su)->show port ge.3.14 108
- Commands 111
- 4-8 Port Configuration 112
- Setting Speed and Duplex Mode 113
- 4-10 Port Configuration 114
- D-Series CLI Reference 4-11 115
- D-Series CLI Reference 4-13 117
- D-Series CLI Reference 4-15 119
- 4-16 Port Configuration 120
- 121
- Setting Flow Control 122
- 4-20 Port Configuration 124
- D-Series CLI Reference 4-21 125
- 4-24 Port Configuration 128
- D-Series CLI Reference 4-25 129
- 4-26 Port Configuration 130
- D-Series CLI Reference 4-27 131
- D-Series CLI Reference 4-29 133
- 4-30 Port Configuration 134
- Port Mirroring 135
- 4-32 Port Configuration 136
- D-Series CLI Reference 4-33 137
- LACP Operation 138
- LACP Terminology 138
- D-Series Usage Considerations 139
- D-Series CLI Reference 4-37 141
- 4-38 Port Configuration 142
- D-Series CLI Reference 4-39 143
- 4-40 Port Configuration 144
- D-Series CLI Reference 4-41 145
- 4-42 Port Configuration 146
- forportge.1.12: 147
- Configuring Protected Ports 151
- 4-48 Port Configuration 152
- D-Series CLI Reference 4-49 153
- 4-50 Port Configuration 154
- SNMP Configuration 155
- SNMP Configuration Summary 156
- 5-2 SNMP Configuration 156
- Reviewing SNMP Statistics 157
- 5-6 SNMP Configuration 160
- D-Series CLI Reference 5-7 161
- 5-10 SNMP Configuration 164
- 5-12 SNMP Configuration 166
- D-Series CLI Reference 5-13 167
- 5-14 SNMP Configuration 168
- 5-18 SNMP Configuration 172
- Configuring SNMP MIB Views 173
- D-Series CLI Reference 5-21 175
- 5-24 SNMP Configuration 178
- About SNMP Notify Filters 182
- D-Series CLI Reference 5-29 183
- 5-30 SNMP Configuration 184
- 5-32 SNMP Configuration 186
- D-Series CLI Reference 5-33 187
- 5-34 SNMP Configuration 188
- D-Series CLI Reference 5-35 189
- 5-36 SNMP Configuration 190
- D-Series CLI Reference 5-37 191
- 5-38 SNMP Configuration 192
- Spanning Tree Configuration 193
- Spanning Tree Features 194
- Loop Protect 194
- D-Series CLI Reference 6-3 195
- D-Series CLI Reference 6-7 199
- Force Version is mstp 200
- BPDU forwarding is disabled 201
- D-Series CLI Reference 6-11 203
- D-Series CLI Reference 6-13 205
- D-Series CLI Reference 6-15 207
- D-Series CLI Reference 6-17 209
- D-Series CLI Reference 6-19 211
- D-Series CLI Reference 6-21 213
- D-Series CLI Reference 6-23 215
- Spanguard is disabled 217
- Spanguard timeout: 300 218
- D-Series CLI Reference 6-27 219
- D-Series CLI Reference 6-29 221
- Legacy Path Cost is disabled 222
- D-Series CLI Reference 6-33 225
- D-Series CLI Reference 6-35 227
- D-Series CLI Reference 6-37 229
- D-Series CLI Reference 6-41 233
- D-Series CLI Reference 6-43 235
- D-Series CLI Reference 6-45 237
- D-Series CLI Reference 6-47 239
- D-Series CLI Reference 6-49 241
- Switchcommand,read‐only 243
- 802.1Q VLAN Configuration 245
- Viewing VLANs 246
- D2(su)->set vlan create 3 249
- D2(su)->clear vlan 9 250
- D2(su)->clear vlan name 9 250
- 7-8 802.1Q VLAN Configuration 252
- D-Series CLI Reference 7-9 253
- D-Series CLI Reference 7-11 255
- D-Series CLI Reference 7-13 257
- D-Series CLI Reference 7-15 259
- Setting the Host VLAN 261
- D2(su)->set host vlan 7 262
- D2(su)->clear host vlan 262
- Overview 263
- How It Works 263
- Purpose 264
- D-Series CLI Reference 7-21 265
- D-Series CLI Reference 7-23 267
- D-Series CLI Reference 8-1 269
- D-Series CLI Reference 8-5 273
- D-Series CLI Reference 8-11 279
- D-Series CLI Reference 8-13 281
- D-Series CLI Reference 8-17 285
- Configuring Policy Profiles 287
- D-Series CLI Reference 9-3 289
- D-Series CLI Reference 9-9 295
- D-Series CLI Reference 9-13 299
- D-Series CLI Reference 9-15 301
- D-Series CLI Reference 9-17 303
- D-Series CLI Reference 9-19 305
- D-Series CLI Reference 9-21 307
- D-Series CLI Reference 9-23 309
- [type {drop}]} 311
- D-Series CLI Reference 9-27 313
- D-Series CLI Reference 9-29 315
- D-Series CLI Reference 9-31 317
- D-Series CLI Reference 10-1 319
- Configuring Port Priority 320
- D-Series CLI Reference 10-3 321
- D-Series CLI Reference 10-5 323
- D-Series CLI Reference 10-7 325
- IGMP Configuration 329
- Configuring IGMP at Layer 2 330
- D-Series CLI Reference 11-3 331
- 11-4 IGMP Configuration 332
- D-Series CLI Reference 11-5 333
- 11-6 IGMP Configuration 334
- D-Series CLI Reference 11-7 335
- 11-8 IGMP Configuration 336
- 11-10 IGMP Configuration 338
- Configuring System Logging 339
- D-Series CLI Reference 12-5 343
- Table 12-38 344
- D-Series CLI Reference 12-9 347
- D-Series CLI Reference 12-13 351
- [-d] [-n] [-v] host 355
- D2(su)->show mac agetime 358
- Aging time: 300 seconds 358
- D2(su)->clear mac agetime 359
- D-Series CLI Reference 12-23 361
- D2(su)->clear sntp client 365
- D-Series CLI Reference 12-29 367
- Configuring Node Aliases 369
- D-Series CLI Reference 12-33 371
- RMON Configuration 373
- 13-2 RMON Configuration 374
- Statistics Group Commands 375
- 13-4 RMON Configuration 376
- History Group Commands 377
- 13-6 RMON Configuration 378
- Alarm Group Commands 379
- D-Series CLI Reference 13-11 383
- Event Group Commands 384
- 13-14 RMON Configuration 386
- Filter Group Commands 387
- 13-16 RMON Configuration 388
- "capture all" 389
- 13-18 RMON Configuration 390
- D-Series CLI Reference 13-19 391
- Packet Capture Commands 392
- Example 393
- 13-22 RMON Configuration 394
- DHCP Server Configuration 395
- Configuring a DHCP Server 396
- D2(rw)->set dhcp enable 398
- D-Series CLI Reference 14-5 399
- D-Series CLI Reference 14-7 401
- D-Series CLI Reference 14-9 403
- Configuring IP Address Pools 404
- D-Series CLI Reference 14-13 407
- D-Series CLI Reference 14-15 409
- D-Series CLI Reference 14-17 411
- D-Series CLI Reference 14-19 413
- D-Series CLI Reference 14-21 415
- D-Series CLI Reference 14-23 417
- D-Series CLI Reference 14-25 419
- D-Series CLI Reference 14-27 421
- D-Series CLI Reference 14-29 423
- Security Configuration 425
- Filter-ID Attribute Formats 426
- Configuring RADIUS 427
- 15-6 Security Configuration 430
- D-Series CLI Reference 15-7 431
- D-Series CLI Reference 15-13 437
- D-Series CLI Reference 15-15 439
- D-Series CLI Reference 15-17 441
- D2(su)->set eapol enable 442
- 15-22 Security Configuration 446
- D-Series CLI Reference 15-23 447
- 15-24 Security Configuration 448
- D-Series CLI Reference 15-25 449
- 15-26 Security Configuration 450
- D-Series CLI Reference 15-27 451
- 15-28 Security Configuration 452
- D-Series CLI Reference 15-29 453
- D-Series CLI Reference 15-31 455
- 15-32 Security Configuration 456
- D-Series CLI Reference 15-33 457
- 15-34 Security Configuration 458
- D-Series CLI Reference 15-35 459
- 15-36 Security Configuration 460
- D-Series CLI Reference 15-37 461
- 15-38 Security Configuration 462
- D-Series CLI Reference 15-39 463
- 15-40 Security Configuration 464
- D-Series CLI Reference 15-43 467
- 15-44 Security Configuration 468
- D-Series CLI Reference 15-45 469
- Configuring MAC Locking 470
- 15-50 Security Configuration 474
- D-Series CLI Reference 15-51 475
- 15-52 Security Configuration 476
- D-Series CLI Reference 15-53 477
- 15-54 Security Configuration 478
- D-Series CLI Reference 15-55 479
- 15-56 Security Configuration 480
- About PWA 481
- 15-60 Security Configuration 484
- D2(su)->clear pwa banner 485
- 15-62 Security Configuration 486
- D-Series CLI Reference 15-63 487
- Guest Password: ********* 488
- D-Series CLI Reference 15-65 489
- 15-66 Security Configuration 490
- D-Series CLI Reference 15-67 491
- D2(su)->show ssh status 493
- SSH Server status: Disabled 493
- D2(su)->set ssh disable 493
- Dynamic policy profile 495
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