CHAPT ER
37-1
Software Configuration Guide—Release 15.0(2)SG
OL-23818-01
37
Configuring Quality of Service
Note QoS functionality on Supervisor Engine 6-E, Supervisor Engine 6L-E, Catalyst 4900M, and Catalyst
4948E are equivalent.
This chapter describes how to configure quality of service (QoS) by using automatic QoS (auto-QoS)
commands or by using standard QoS commands on a Catalyst 4500 series switch. It describes how to
specify QoS configuration on different types of interfaces (access, Layer 2 trunk, Layer 3 routed,
EtherChannel) as well as VLANs. It also describes how to specify different QoS configurations on
different VLANs on a given interface (per-port per-VLAN QoS). This chapter describes QoS support on
Supervisor Engines II-Plus to V-10GE, Supervisor Engine 6-E, and Supervisor Engine 6L-E.
The QoS configuration model supported on Supervisor Engines II-Plus to V-10G is called the
switch qos model. However, Supervisor Engine 6-E and Supervisor Engine 6L-E support a different QoS
configuration model known as MQC (Modular QoS CLI). Refer to the appropriate configuration section
for the supervisor engine on which QoS will be configured. For more information about MQC, see the
“Modular Quality of Service Command-Line Interface” section of the
Cisco IOS Quality of Service Solutions Configuration Guide, Release 12.3.
This chapter includes of these sections:
• About QoS, page 37-2
• Configuring QoS on Supervisor Engines II-Plus, II+10GE, IV, V, V-10GE, 4924, 4948, and
4948-10GE, page 37-17
• Configuring Auto-QoS on Supervisor Engines II-Plus, II+10GE, IV, V, V-10GE, 4924, 4948, and
4948-10GE, page 37-56
• Configuring QoS on Supervisor Engine 6-E, Supervisor Engine 6L-E, Catalyst 4900M, and Catalyst
4948E, page 37-63
• Configuring Auto-QoS on Supervisor Engine 6-E, Supervisor Engine 6L-E, Catalyst 4900M, and
Catalyst 4948E, page 37-90