Chapter 10. Migration Strategies

This chapter covers the following topics:

• Topics to consider for inclusion in RFP documents

• Turning the RFP into a joint planning document for implementation with selected vendors

• Defining the SLAs

• Training network operations staff on the new network

• Planning site installation

• Site handover requirements

• Case study selections

Having examined the options available for implementing provider-provisioned Layer 3 virtual private networks (VPNs) and how the technology affects the enterprise network after it's implemented, we now consider how migrating from a traditional WAN to a Layer 3 VPN WAN can be managed. The procedures, mechanisms, and forms provided in this chapter are very similar to those used to successfully migrate the Cisco internal network from Frame Relay connectivity to a Layer 3 VPN with only the planned outages affecting end user service.