AR300 and AR700 Web-based Typical Configuration Example
Example for Configuring QoS to Limit the Total Network Access Bandwidth
Networking Requirements
In Figure 2-283, Router serves as the egress gateway of the enterprise and connects to the Internet through GE0/0/9. GE0/0/9 uses a static IP address 10.1.1.110/24; the gateway address of Router is 10.1.1.1; the DNS server addresses of Router are 203.10.1.150 and 203.1.1.148. Intranet users access the Internet after address translation through the network address translation (NAT) service deployed on Router. The customer wants to limit the uplink bandwidth of Internet access traffic to 20 Mbit/s and the downlink bandwidth to 50 Mbit/s.
Configuration Roadmap
- Complete basic network configurations. (If basic network configurations have been completed, skip this step and go to step 2. You only need to perform rate limit configurations.)
Set parameters, such as the interface IP address and gateway address on GE0/0/9.
Create VLAN 10 and VLANIF 10 and use VLANIF 10 as the gateway of the network segment 192.168.10.0/24. Create VLAN 20 and VLANIF 20 and use VLANIF 20 as the gateway of the network segment 192.168.20.0/24. Add the Layer 2 Ethernet interface GE0/0/7 connecting to Switch to VLAN 10 and VLAN 20 as a trunk interface.
- Configure rate limit by interface on GE0/0/9.
Procedure
- Configure GE0/0/9, add the Layer 2 Ethernet interface GE0/0/7 to VLANs, and create VLANIF interfaces.
- Configure GE0/0/9.Choose . Set the parameters in the Ethernet Interface Settings area, and click OK, as shown in Figure 2-284.
- Choose . Set the parameters in the VLAN Settings area, and click Add, as shown in Figure 2-285.
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Select GE0/0/7 and add it to VLAN 10 as a trunk interface.
- Choose . In the VLANIF Settings area, select VLANIF 10 and click Modify. Set the parameters in the Modify VLANIF area, and click OK, as shown in Figure 2-286.
- Configure VLAN 20. The procedure is similar to that for configuring VLAN 10.
- Configure GE0/0/9.
- Configure rate limit by interface on GE0/0/9.On the web platform, choose . As shown in Figure 2-287 and Figure 2-288, set the parameters in the Interface Rate Limit Settings area, and click Apply.
Precautions
- In this example, rate limit is configured on an extranet interface. Typically, rate limit on the entire intranet is configured on an extranet interface, and rate limit by intranet user or network segment is configured on an intranet interface.
- In this example, Inbound indicates the downlink direction, and Outbound indicates the uplink direction.
Set Direction to Inbound or Outbound based on the direction of the traffic to be limited.
- On an intranet interface, Inbound indicates traffic passing through the intranet interface to the router. The traffic is sent by a PC to the Internet, so the limited rate is the upload rate or uplink bandwidth. Similarly, Outbound indicates traffic passing out of the intranet interface of the router. The traffic is sent by the Internet to a PC, so the limited rate is the download rate or downlink bandwidth.
- On an extranet interface, Inbound indicates traffic passing through the extranet interface to the router. The traffic is sent by the Internet to a PC, so the limited rate is the download rate or downlink bandwidth. Similarly, Outbound indicates traffic passing out of the extranet interface of the router. The traffic is sent by a PC to the Internet, so the limited rate is the upload rate or uplink bandwidth.