When making decisions on which TCP/IP features to implement for ClearPath systems, one of the key factors is the TCP/IP strategy developed by the TCP/IP engineering staff and ClearPath Product Management. The ClearPath Enterprise Server is positioned as a host end-node within an IP network. The strategy is to implement RFCs that are relevant to this positioning and that have the greatest impact for the client base. From an Internet Engineering Task Force (IETF) model, this could preclude various network layer (routing) protocols and some transport layer protocols that are not relevant to the general ClearPath markets.

The TCP/IP engineering staff and ClearPath Product Management review functional requirements on an on-going basis as part of the software development cycle. Sources of these requirements come from our customers, usually via new feature suggestions (NFSs), our sales and marketing force (driven by target market requirements), as well as engineering research.

The selection of the implementation approach is done on a feature by feature basis. Performance, ease-of-use, and time-to-market are all considered when determining an implementation.

Network Services Capabilities and TCP/IP Capabilities - Host Services in this section divide TCP/IP capabilities into Network Services and Host Services. For each category, TCP/IP related features and attributes of the feature are listed, along with Support and Release stream indications, related Unisys Product Information, and the applicable industry RFCs, if any. If an RFC is not listed, you can assume that it has not been implemented. See “Network Services Related Documentation” after Network Services Capabilities for the list of documents associated with the numbers in the Related Documentation column of the table. See “Host Services Related Documentation” after TCP/IP Capabilities - Host Services for the list of documents associated with the numbers in the Related Documentation column of the table.

Unless otherwise noted, all features are available in the MCP environment of the ClearPath servers.