Cisco WS-C2960-24LC-S Software Configuration Manual page 688

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Feature Behavior Incompatibilities

The Catalyst 2960 switch uses different port hardware than the Catalyst 2950 switch, and more QoS

features are offered on the Catalyst 2960 switch. For example, the Catalyst 2950 switch supports

WRR scheduling, whereas the Catalyst 2960 switch supports SRR scheduling. Also, you must

enable QoS globally on the Catalyst 2960 switch, whereas QoS is enabled by default on the Catalyst

2950 switch. For more information, see

The Catalyst 2950 switch uses an extra port, called the reflector port, for its RSPAN

implementation. This is not necessary in the Catalyst 2960 switch RSPAN implementation. The

Catalyst 2960 switch also supports VLANs as SPAN sources and can forward received packets on

SPAN destination ports.

The multicast forwarding decisions on the Catalyst 2960 switch are based on IP addresses. Some

Catalyst 2950 switch workarounds to address platform limitations (such as the ip igmp snooping

source-only-learning global configuration command) are not required on the Catalyst 2960 switch.

Catalyst 2960 Switch Software Configuration Guide

Recommendations for Upgrading a Catalyst 2950 Switch to a Catalyst 2960 Switch

Chapter 28, "Configuring QoS."

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