Configuration Examples; Example For Configuring Egress Link Load Balancing - Huawei S9700 Series Configuration Manual

S9700 Core Routing Switch
Configuration Guide - SPU

6.6 Configuration Examples

This section provides several load balancing configuration examples. A configuration example
includes the networking requirements, configuration roadmap, operation procedure, and
configuration files.

6.6.1 Example for Configuring Egress Link Load Balancing

This section describes how to configure egress link load balancing to improve service reliability.
Networking Requirements
As shown in
of ISP1 is 100 Mbit/s and the link bandwidth of ISP2 is 300 Mbit/s. The network delay of ISP2
is shorter than that of ISP1. The requirements are as follows:
l
l
l
The enterprise user is connected to GE 3/0/0 of the Switch and the SPU is installed in slot 5 of
the Switch.
RouterA is connected to GE 3/0/1 of the Switch and RouterB is connected to GE 3/0/2 of the
Switch.
The data flows entering the SPU pass through the primary CPU. That is, the data flows are
received and sent by GE 5/0/0.
The source IP address of the enterprise user is located on 192.168.1.1/24 and the destination IP
address of the external network that the enterprise user needs to visit is located on 60.60.60.1/24.
Issue 01 (2012-03-15)
No. Step
9 (Optional) Configure a
connection parameter profile.
10 (Optional) Configure an HTTP
parameter profile.
11 Configure a Layer 3 classifier.
12 Configure a load balancing
policy.
13 Apply the load balancing policy.
14 Check the configuration.
Figure 6-8, an enterprise leases two egresses: ISP1 and ISP2. The link bandwidth
The link is preferentially selected when an enterprise user accesses the external network.
Another link is automatically selected when a link becomes invalid or the link limit is
exceeded.
NAT for translating source IP addresses is enabled.
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6 Load Balancing Configuration
Reference
6.4.10 (Optional) Configuring a
Connection Parameter Profile
6.4.11 (Optional) Configuring an HTTP
Parameter Profile
6.4.12 Configuring a Layer 3 Classifier
6.4.13 Configuring a Load Balancing
Policy
6.4.14 Applying the Load Balancing
Policy (you need to run the mac-sticky
enable command to enable MAC address
stickiness)
6.4.15 Checking the Configuration
230