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AR Router Troubleshooting Guide

This Product Documentation provides guidance for maintaining AR Enterprise Router, covering common information collection and fault diagnostic commands, typical fault troubleshooting guide, and troubleshooting.
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How Do I Limit the Maximum Upload Rate of Each Intranet User (Using the Web Platform)?

How Do I Limit the Maximum Upload Rate of Each Intranet User (Using the Web Platform)?

Networking Requirements

In Figure 29-48, Router serves as the egress gateway of the enterprise and connects to the Internet through GE0/0/1. GE0/0/1 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 201.10.1.150 and 202.1.1.148. Intranet users access the Internet after address translation through the network address translation (NAT) service deployed on Router. The customer wants to limit the upload rate of each user (by IP address) in the network segment 192.168.10.0/24 to 64 Kbit/s and each user (by IP address) in the network segment 192.168.20.0/24 to 128 Kbit/s.

Figure 29-48  Networking diagram for configuring traffic policing

Configuration Roadmap

The configuration roadmap is as follows:
  1. 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 GE0/0/1.

    • 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 Eth0/0/2 connecting to Switch to VLAN 10 and VLAN 20 as a trunk interface.

  2. Configure per-IP rate limit on VLANIF 10 and VLANIF 20 respectively.

Procedure

  1. Configure GE0/0/1, add the Layer 2 Ethernet interface Eth0/0/2 to VLANs, and create VLANIF interfaces.

    1. Configure GE0/0/1.
      Choose WAN Access > Ethernet Interface and click Create. In the displayed dialog box, set parameters according to Figure 29-49 and click OK.
      Figure 29-49  Creating an Ethernet interface

    2. Choose LAN Access > LAN > VLAN Interface and click Create. In the displayed dialog box, set parameters according to Figure 29-50 and click OK. Figure 29-50 shows the settings for VLANIF 10. The settings for VLANIF 20 are similar, and are not mentioned here.
      Figure 29-50  Creating a VLAN interface

    3. Configure VLANIF 20 by referring to the settings in the previous step.

  2. Configure per-IP rate limit by source IP address on the VLANIF interfaces.

    On the web platform, choose QoS > Interface Rate Limit and click Create. In the displayed dialog box, set parameters according to Figure 29-51 and Figure 29-52 and click OK.
    Figure 29-51  Configuring rate limit on VLANIF 10

    Figure 29-52  Configuring rate limit on VLANIF 20

Precautions

  1. This example uses an AR1220 running V200R007C00SPCb00.
  2. To specify a bandwidth for each intranet user, Type must be set to Exclusive. If Type is set to Shared, all the users in the network segment specified by Start source IP and End source IP share the specified bandwidth. Therefore, each user can use only a limited bandwidth. If Type is set to Exclusive, each IP address in the network segment uses the specified bandwidth independently.
  3. In this example, rate limit is configured on an intranet interface (a router interface connecting to the intranet). Typically, rate limit by intranet user or network segment is configured on an intranet interface. As the NAT service is deployed on an extranet interface, configuring rate limit for intranet users on the same extranet interface will increase the device cost and reduce the device performance due to complex configurations.
  4. 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.
  5. If the web platform of the EasyOperation edition is displayed after your login, as shown in Figure 29-53, click in the upper right corner to switch to the web page of the Classics edition.
    Figure 29-53  Login page of the web platform of the EasyOperation edition

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Updated: 2019-05-10

Document ID: EDOC1000079719

Views: 449281

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