Huawei quidway s7700 - Example for Configuring Policy-Based Routing

port trunk allow-pass vlan 300
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1.6.3 Example for Configuring Policy-based Routing
After packet redirection based on complex traffic classification is configured, the S7700 redirects
packets with different IP priorities to different interfaces so that the S7700 provides different
bandwidth services.
Networking Requirements
The Layer 2 switch of a company is connected to the ISP device through the Switch; one is a 1-
Gbit/s link with the gateway as 20.20.20.1/24 and the other is a 10-Gbit/s link with the gateway
as 20.20.30.1/24. The company requires that the 10 Gbit/s links send only the packets with
priorities as 4, 5, 6, and 7 and 1 Gbit/s links send packets of lower priorities to the ISP. See
Figure 1-3.
Figure 1-3 Policy-based routing networking
Core
network
GE 3/0/1
GE 3/0/2
GE 2/0/1
20.20.20.2/24
20.20.20.1/24
20.20.30.2/24
20.20.30.1/24
Company
Switch
Router
Configuration Roadmap
The configuration roadmap is as follows:
1. Create VLANs and configure interfaces so that the Switch can ping the ISP device.
2. Create ACL rules to match the packets with priorities as 4, 5, 6, and 7 and priorities as 0,
1, 2, and 3.
3. Create traffic classifiers to match the preceding ACL rules.
4. Create traffic behaviors to redirect matching packets to 20.20.20.1/24 and 20.20.30.1/24.
5. Create a traffic policy, bind traffic classifiers to traffic behaviors in the traffic policy, and
apply the traffic policy to an interface.
Data Preparation
To complete the configuration, you need the following data:
l VLAN 20 and VLAN 30 that all of GE1/0/1, GE1/0/2 and GE2/0/1 are added to
l ACL rules 3001 and 3002
l Traffic classifiers c1 and c2
l Traffic behaviors b1 and b2
l Traffic policy p1
Quidway S7700 Smart Routing Switch
Configuration Guide - QoS 1 Class-based QoS Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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