Administrator Guide

Overview of Layer Modes.......................................................................................................................................324
Conguring Layer 2 (Data Link) Mode..................................................................................................................324
Conguring Layer 2 (Interface) Mode.................................................................................................................. 325
Conguring Layer 3 (Network) Mode...................................................................................................................325
Conguring Layer 3 (Interface) Mode.................................................................................................................. 326
Egress Interface Selection (EIS)..................................................................................................................................326
Important Points to Remember............................................................................................................................. 326
Conguring EIS.........................................................................................................................................................327
Management Interfaces................................................................................................................................................327
Conguring Management Interfaces.....................................................................................................................327
Conguring a Management Interface on an Ethernet Port................................................................................329
VLAN Interfaces............................................................................................................................................................ 329
Loopback Interfaces......................................................................................................................................................330
Null Interfaces................................................................................................................................................................ 330
Port Channel Interfaces................................................................................................................................................330
Port Channel Denition and Standards..................................................................................................................331
Port Channel Benets..............................................................................................................................................331
Port Channel Implementation................................................................................................................................. 331
Interfaces in Port Channels.................................................................................................................................... 332
Conguration Tasks for Port Channel Interfaces.................................................................................................332
Creating a Port Channel..........................................................................................................................................332
Adding a Physical Interface to a Port Channel.....................................................................................................333
Reassigning an Interface to a New Port Channel................................................................................................334
Conguring the Minimum Oper Up Links in a Port Channel.............................................................................. 335
Adding or Removing a Port Channel from a VLAN............................................................................................. 335
Assigning an IP Address to a Port Channel.......................................................................................................... 336
Deleting or Disabling a Port Channel..................................................................................................................... 337
Load Balancing Through Port Channels................................................................................................................337
Load-Balancing Method..........................................................................................................................................337
Changing the Hash Algorithm................................................................................................................................338
Bulk Conguration......................................................................................................................................................... 339
Interface Range........................................................................................................................................................339
Bulk Conguration Examples..................................................................................................................................339
Dening Interface Range Macros................................................................................................................................. 341
Dene the Interface Range..................................................................................................................................... 341
Choosing an Interface-Range Macro.....................................................................................................................341
Monitoring and Maintaining Interfaces........................................................................................................................342
Maintenance Using TDR......................................................................................................................................... 343
Link Dampening..............................................................................................................................................................343
Important Points to Remember..............................................................................................................................343
Enabling Link Dampening........................................................................................................................................344
Link Bundle Monitoring................................................................................................................................................. 345
Using Ethernet Pause Frames for Flow Control........................................................................................................ 346
Enabling Pause Frames........................................................................................................................................... 346
Congure the MTU Size on an Interface.................................................................................................................... 347
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Contents