Cisco 10000 Series User Manual

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Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 9 Shaping Traffic
Interfaces Supporting Traffic Shaping
that is making the guarantees. Retaining the data in the router allows the router to prioritize traffic
according to the guarantees it is making. (Packet loss can result in detrimental consequences for
real-time and interactive applications.)
Interfaces Supporting Traffic Shaping
The following describes interface support for traffic shaping:
Interfaces Supporting Traffic Shaping
• Physical
• Multilink PPP and multilink Frame Relay
• ATM variable bit rate (VBR) and constant bit rate (CBR) PVCs, and point-to-point subinterfaces
• Label-controlled ATM (LC-ATM) subinterfaces *
• Frame Relay permanent virtual circuits (PVCs), point-to-point subinterfaces, and map classes **
• Ethernet VLANs **
* Requires a specific type of hierarchical policy or a policy map with only the class-default class defined.
The class-default class must have the shape command configured.
** Requires a specific type of hierarchical policy. For more information, see Chapter 13, “Defining QoS
for Multiple Policy Levels.”
Note The router supports traffic shaping only on outbound interfaces.
Interfaces Not Supporting Traffic Shaping
• ATM unspecified bit rate (UBR) PVCs and point-to-point subinterfaces
• IP tunnel
• Virtual-access (See the “VAI QoS Inheritance” section on page 4-24.)
Note The router does not support traffic shaping on inbound interfaces.
Configuring Traffic Shaping
To configure traffic shaping, perform the following configuration tasks:
• Shaping a Traffic Class, page 9-14
• Shaping Traffic at the VC-Level and Virtual Path-Level, page 9-15

Cisco 10000 Series Specifications

General

Brand	Cisco
Model	10000 Series
Category	Network Router
Language	English