Administrator Guide

Overview of Layer Modes...................................................................................................................................... 353
Conguring Layer 2 (Data Link) Mode..................................................................................................................353
Conguring Layer 2 (Interface) Mode.................................................................................................................. 354
Conguring Layer 3 (Network) Mode...................................................................................................................354
Conguring Layer 3 (Interface) Mode.................................................................................................................. 355
Automatic recovery of an Err-disabled interface.......................................................................................................355
Conguring an automatic recovery for an Err-disabled interface......................................................................356
Egress Interface Selection (EIS)..................................................................................................................................356
Important Points to Remember..............................................................................................................................357
Conguring EIS........................................................................................................................................................ 357
Management Interfaces................................................................................................................................................357
Conguring Management Interfaces.....................................................................................................................357
Conguring a Management Interface on an Ethernet Port............................................................................... 359
VLAN Interfaces............................................................................................................................................................ 359
Loopback Interfaces......................................................................................................................................................360
Null Interfaces................................................................................................................................................................ 360
Port Channel Interfaces.................................................................................................................................................361
Port Channel Denition and Standards..................................................................................................................361
Port Channel Benets..............................................................................................................................................361
Port Channel Implementation................................................................................................................................. 361
Interfaces in Port Channels.................................................................................................................................... 362
Conguration Tasks for Port Channel Interfaces.................................................................................................362
Creating a Port Channel..........................................................................................................................................362
Adding a Physical Interface to a Port Channel.....................................................................................................363
Reassigning an Interface to a New Port Channel................................................................................................364
Conguring the Minimum Oper Up Links in a Port Channel.............................................................................. 365
Adding or Removing a Port Channel from a VLAN............................................................................................. 365
Assigning an IP Address to a Port Channel...........................................................................................................367
Deleting or Disabling a Port Channel..................................................................................................................... 367
Load Balancing Through Port Channels................................................................................................................367
Load-Balancing Method..........................................................................................................................................367
Changing the Hash Algorithm................................................................................................................................368
Bulk Conguration......................................................................................................................................................... 369
Interface Range....................................................................................................................................................... 369
Bulk Conguration Examples..................................................................................................................................370
Dening Interface Range Macros................................................................................................................................. 371
Dene the Interface Range..................................................................................................................................... 371
Choosing an Interface-Range Macro..................................................................................................................... 371
Monitoring and Maintaining Interfaces........................................................................................................................372
Maintenance Using TDR......................................................................................................................................... 373
Link Dampening..............................................................................................................................................................373
Important Points to Remember..............................................................................................................................374
Conguration Example of Link Dampening...........................................................................................................374
Enabling Link Dampening........................................................................................................................................ 376
Link Bundle Monitoring..................................................................................................................................................377
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