Example: Preparing to Upgrade the Cluster

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

An organization is upgrading their existing virtual private network (VPN) remote access solution. The existing solution has a VPN remote access server farm that supports Point-to-Point Tunneling Protocol (PPTP) and Layer Two Tunneling Protocol (L2TP). Currently the VPN remote access server farm is running WLBS on Windows NT 4.0. Figure 9.9 illustrates the organization’s network environment prior to preparing for the upgrade of the existing WLBS cluster that hosts the VPN remote access server farm.

Figure 9.9   Network Environment Before Preparing to Upgrading the Cluster

As the first step in upgrading the existing VPN remote access server farm, the organization installs any networking services required by the VPN remote access server farm. No networking infrastructure or networking services upgrades are required for the upgrade.

In the future, the organization plans to deploy Internet Authentication Service (IAS) servers to provide centralized management of remote access policies. However, the deployment of IAS is scheduled to occur after the upgrade to Windows Server 2003 to prevent any unnecessary complications during the upgrade process.