AR100-S, AR110-S, AR120-S, AR150-S, AR160-S, AR200-S, AR1200-S, AR2200-S, and AR3200-S Web-based Typical Configuration Examples

Example for Configuring QoS to Limit the Total Bandwidth of an Interface and Bandwidth of Each Service

Specifications

Networking Requirements

The router is deployed at the egress of the enterprise network, and enterprise users access the Internet through the router, as shown in Figure 12-1.

Basic QoS functions need to be configured to limit the outbound bandwidth to 2000 kbit/s and allocate different percentages of bandwidth to different services, as shown in Table 12-1.

Figure 12-1 Configuring QoS to limit the total bandwidth of an interface and bandwidth of each service

Table 12-1 Bandwidth percentage of each service

Class	Bandwidth (%)
CS7	5
CS6	5
EF	15
AF4	15
AF3	5
AF2	25
AF1	5
BE	24
Others	1

Procedure

Configure WAN-side interface bandwidth.
1. Choose Configuration Wizard > QoS Configuration Wizard, as shown in Figure 12-2.
  Figure 12-2 QoS Configuration Wizard page
2. Set parameters to configure WAN-side interface rate limiting, as shown in Figure 12-3. After the configuration is complete, click Next.
  Figure 12-3 Configuring WAN-side interface bandwidth
Configure service bandwidth of a WAN interface.
Configure bandwidth for each class, as shown in Figure 12-4. The class refers to the DSCP value and is used to differentiate priorities of data packets. The bandwidth cannot be empty and the sum of the bandwidth cannot exceed 99% of the rate limit. At least 1% of the bandwidth is allocated to the default flow queue. After the configuration is complete, click Next.
Figure 12-4 Configuring service bandwidth of a WAN interface
Confirm the configuration.
You can see that the outbound interface of GE3/0/0 is 2000 kbit/s and each service is allocated bandwidth as required, as shown in Figure 12-5. Click Finish.

Figure 12-5 Confirming the configuration