EtherChannel and Switch Stacks 118
Switch Stacks and PAgP 119
Switch Stacks and LACP 119
Default EtherChannel Configuration 119
EtherChannel Configuration Guidelines 120
Layer 2 EtherChannel Configuration Guidelines 122
Layer 3 EtherChannel Configuration Guidelines 123
How to Configure EtherChannels 123
Configuring Layer 2 EtherChannels 123
Configuring Layer 3 EtherChannels 126
Creating Port-Channel Logical Interfaces 126
Configuring the Physical Interfaces 127
Configuring EtherChannel Load-Balancing 129
Configuring the PAgP Learn Method and Priority 130
Configuring LACP Hot-Standby Ports 132
Configuring the LACP System Priority 132
Configuring the LACP Port Priority 133
Monitoring EtherChannel, PAgP, and LACP Status 135
Configuration Examples for Configuring EtherChannels 136
Configuring Layer 2 EtherChannels: Examples 136
Configuring Port-Channel Logical Interfaces: Example 136
Configuring EtherChannel Physical Interfaces: Examples 137
Additional References for EtherChannels 137
Feature Information for EtherChannels 138
CHAPTER 6
Configuring Link-State Tracking 139
Finding Feature Information 139
Restrictions for Configuring Link-State Tracking 139
Understanding Link-State Tracking 140
How to Configure Link-State Tracking 143
Monitoring Link-State Tracking 144
Configuring Link-State Tracking: Example 144
Additional References for Link-State Tracking 145
Feature Information for Link-State Tracking 146
Catalyst 2960-XR Switch Layer 2 Configuration Guide, Cisco IOS Release 15.0(2)EX1
viii OL-29424-01
Contents