Cisco Cisco Content Switching Module 技术手册

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VPN Load Balancing on the CSM in Directed Mode
Configuration Example
Document ID: 63390
Contents
Introduction
 Prerequisites
      Requirements
      Components Used
      Conventions
 Configure
      Network Diagram
      Configurations
 Verify
 Troubleshoot
 Related Information
Introduction
This document provides a sample configuration for VPN load balancing on a Content Switching Module
(CSM). VPN load balancing is a mechanism that intelligently distributes VPN sessions along a set of VPN
concentrators or VPN head−end devices. VPN load balancing is implemented for these reasons:
to overcome performance or scalability limitations on VPN devices; for example, packets per second,
connections per second, and throughput
• 
to provide redundancy (remove a single point of failure)
• 
Prerequisites
Requirements
Ensure that you meet these requirements before you attempt this configuration:
Implement Reverse Route Injection (RRI) at the head−end devices, to propagate the routing
information from the spokes automatically.
• 
Enable VLAN 61 and 51 to share the same subnet.
• 
Components Used
The information in this document is based on these software and hardware versions:
Cisco Catalyst 6500 with CSM
• 
Cisco 2621 Router
• 
Cisco 7206
• 
Cisco 7206VXR
• 
Cisco 7204VXR
• 
Cisco 7140
•