Cisco Catalyst 2960-XR Configuration Guide

EtherChannel Modes
You can configure an EtherChannel in one of these modes: Port Aggregation Protocol (PAgP), Link Aggregation
Control Protocol (LACP), or On. Configure both ends of the EtherChannel in the same mode:
•
When you configure one end of an EtherChannel in either PAgP or LACP mode, the system negotiates
with the other end of the channel to determine which ports should become active. If the remote port
cannot negotiate an EtherChannel, the local port is put into an independent state and continues to carry
data traffic as would any other single link. The port configuration does not change, but the port does not
participate in the EtherChannel.
•
When you configure an EtherChannel in the on mode, no negotiations take place. The switch forces all
compatible ports to become active in the EtherChannel. The other end of the channel (on the other switch)
must also be configured in the on mode; otherwise, packet loss can occur.
Related Topics
Configuring Layer 2 EtherChannels, on page 123
EtherChannel Configuration Guidelines, on page 120
Default EtherChannel Configuration, on page 119
Layer 2 EtherChannel Configuration Guidelines, on page 122
Catalyst 2960-XR Switch Layer 2 Configuration Guide, Cisco IOS Release 15.0(2)EX1
OL-29424-01 107
Configuring EtherChannels
EtherChannel Overview

Cisco Catalyst 2960-XR Specifications

General

Stacking Bandwidth	80 Gbps
Layer Support	Layer 2 and Layer 3
Jumbo Frame Support	9198 bytes
RAM	512 MB
Input Voltage	100-240V AC
Model	Catalyst 2960-XR
Uplink Interfaces	4 x 1G SFP or 2 x 10G SFP+
Downlink Interfaces	24 or 48 x Gigabit Ethernet ports
Power Supply	Internal
MAC Address Table Size	16, 000 entries
PoE	Available on PoE models
Weight	4.5 kg
Features	energy efficiency
Stacking	Up to 8 switches
Operating Temperature	0 to 45°C