Reference Guide

Loopback Interfaces.............................................................................................................................................367
Null Interfaces...................................................................................................................................................... 368
Port Channel Interfaces........................................................................................................................................368
Port Channel Definition and Standards..........................................................................................................368
Port Channel Benefits.................................................................................................................................... 368
Port Channel Implementation.........................................................................................................................369
10/100/1000 Mbps Interfaces in Port Channels.............................................................................................. 369
Configuration Tasks for Port Channel Interfaces...........................................................................................370
Creating a Port Channel................................................................................................................................. 370
Adding a Physical Interface to a Port Channel.............................................................................................. 370
Reassigning an Interface to a New Port Channel..........................................................................................372
Configuring the Minimum Oper Up Links in a Port Channel...........................................................................373
Adding or Removing a Port Channel from a VLAN.........................................................................................373
Assigning an IP Address to a Port Channel................................................................................................... 374
Deleting or Disabling a Port Channel............................................................................................................. 374
Load Balancing Through Port Channels........................................................................................................ 374
Load-Balancing on the S4820T.......................................................................................................................374
Changing the Hash Algorithm........................................................................................................................ 375
Bulk Configuration................................................................................................................................................ 376
Interface Range..............................................................................................................................................376
Bulk Configuration Examples......................................................................................................................... 376
Defining Interface Range Macros........................................................................................................................ 377
Define the Interface Range............................................................................................................................ 378
Choosing an Interface-Range Macro.............................................................................................................378
Monitoring and Maintaining Interfaces................................................................................................................378
Maintenance Using TDR................................................................................................................................ 379
Splitting QSFP Ports to SFP+ Ports....................................................................................................................... 380
Link Dampening.................................................................................................................................................... 380
Important Points to Remember...................................................................................................................... 381
Enabling Link Dampening...............................................................................................................................381
Link Bundle Monitoring.........................................................................................................................................382
Using Ethernet Pause Frames for Flow Control....................................................................................................383
Threshold Settings......................................................................................................................................... 383
Enabling Pause Frames..................................................................................................................................384
Configure the MTU Size on an Interface.............................................................................................................. 384
Port-Pipes............................................................................................................................................................. 385
Auto-Negotiation on Ethernet Interfaces............................................................................................................. 385
Setting the Speed and Duplex Mode of Ethernet Interfaces......................................................................... 386
Set Auto-Negotiation Options........................................................................................................................ 387
View Advanced Interface Information................................................................................................................. 388
Configuring the Interface Sampling Size........................................................................................................389
Dynamic Counters.................................................................................................................................................390