Changes in Site Configuration Options and Methods

In SMS 1.2 In SMS 2.0 Notes
You configure the site in the Sites window. You change the settings for each site in the SMS Administrator console.  
You create helper servers on Windows NT Server computers to perform some SMS server-side tasks. You can assign a number of clearly defined roles to a variety of computers, including servers, shares, NetWare bindery volumes, or NetWare NDS volumes. A computer that is assigned one or more of these roles is a site system

To support NetWare clients, you must assign client access point and distribution point roles to NetWare servers or volumes.

Attaching sites to create a site hierarchy requires connecting the sites by a LAN, WAN, or by modem and the Remote Access Service (RAS). All SMS 1.2 senders (except SNA Sender) are still available. But you can also use Courier Sender to copy package distribution information onto removable media and exchange information between otherwise inaccessible sites. SMS 2.0 Standard Sender replaces the SMS 1.2 LAN Sender.
SNA Sender is available for intersite communications. SMS 2.0 SNA RAS Sender replaces the SMS 1.2 SNA Sender. You must have RAS installed on your server and have Microsoft SNA Server configured to use RAS over SNA before you can use the SNA over RAS sender.
Multi-site software distribution requires that packages be sent from the originating site to all subordinate sites — one by one. You can specify that a package sent to a child primary site be replicated and passed on to the child's own child sites without intervention from the originating site. This process is called package routing.  
For each address, the administrator can provide an estimated network bandwidth. The sender for each address automatically calculates effective throughput and adjusts its sending demand accordingly.  

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SMS 1.2 to SMS 2.0 Changes