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TCP/IP Tutorial and Technical Overview

5.5 Continuously Executing Transfer Interface (CETI)

The CETI interface allows communication from S/370 and ESA/390 hosts to all other IEEE 802.3, Ethernet Version 2, and IEEE 802.5 LAN-attached hosts, controllers, workstations and devices where matching line protocols are available. This includes the attachment of non-IBM network controllers.

The CETI interface minimizes the use of SIO instructions and I/O interruptions in the S/370 and ESA/390 host processors.

For more details about the CETI and its relationship to the S/370 and ESA/390 software on the S/370 and ESA/390 channel command base, please refer to ES/9000 Token-Ring and IEEE 802.3 LAN Programming Information. Figure - CETI Connection shows an overview of the CETI environments.

Figure: CETI Connection

5.5.1 Implementations

TCP/IP for MVS supports the CETI.

For information about CETI support in TCP/IP for MVS, please refer to IBM TCP/IP Version 3 Release 1 for MVS: Customization and Administration Guide.

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