TCP Offload to the Rescue

Author:

Currid Andy1

Affiliation:

1. iReady

Abstract

In recent years, TCP/IP offload engines, known as TOEs, have attracted a good deal of industry attention and a sizable share of venture capital dollars. A TOE is a specialized network device that implements a significant portion of the TCP/IP protocol in hardware, thereby offloading TCP/IP processing from software running on a general-purpose CPU. This article examines the reasons behind the interest in TOEs and looks at challenges involved in their implementation and deployment.

Publisher

Association for Computing Machinery (ACM)

Subject

General Computer Science

Reference6 articles.

1. 2 . Foong A. P. Huff T. R. Hum H. H. Patwardhan J. P. and Regnier G. J. TCP Performance Re-Visited; http:// www.cs.duke.edu/~jaidev/papers/ispass03.pdf. (Provides a quantitative analysis of TCP performance bottlenecks including CPU and memory subsystem factors.) 2. Foong A. P. Huff T. R. Hum H. H. Patwardhan J. P. and Regnier G. J. TCP Performance Re-Visited; http:// www.cs.duke.edu/~jaidev/papers/ispass03.pdf. (Provides a quantitative analysis of TCP performance bottlenecks including CPU and memory subsystem factors.)

2. 3 . IETF IPS (IP Storage) Working Group: see http:// www.ietf.org/html.charters/ips-charter.html. The IPS Working Group is chartered with defining protocols to encapsulate existing storage protocols such as SCSI and Fibre Channel over IP-based transports. Notable output of the working group includes the iSCSI iFCP (Internet Fibre Channel Protocol) and related Internet drafts and FCIP (Fibre Channel over IP) RFC 3643. 3. IETF IPS (IP Storage) Working Group: see http:// www.ietf.org/html.charters/ips-charter.html. The IPS Working Group is chartered with defining protocols to encapsulate existing storage protocols such as SCSI and Fibre Channel over IP-based transports. Notable output of the working group includes the iSCSI iFCP (Internet Fibre Channel Protocol) and related Internet drafts and FCIP (Fibre Channel over IP) RFC 3643.

3. 4 . The RDMA (Remote Direct Memory Access) Consortium: see http://www.rdmaconsortium.org. This industry collaborative has published specifications for RDMA (DDP) over TCP/IP; the SDP (Sockets Direct Protocol) which enables sockets applications to take advantage of DDP transports; and iSCSI Extensions for RDMA (iSER). 4. The RDMA (Remote Direct Memory Access) Consortium: see http://www.rdmaconsortium.org. This industry collaborative has published specifications for RDMA (DDP) over TCP/IP; the SDP (Sockets Direct Protocol) which enables sockets applications to take advantage of DDP transports; and iSCSI Extensions for RDMA (iSER).

4. 5 . The RDDP (Remote Direct Data Placement) Working Group: see http://www.ietf.org/html.charters/rddp-charter.html. This group is chartered to define a suite of protocols enabling remote direct data placement over arbitrary network transports with SCTP and TCP being of primary interest. 5. The RDDP (Remote Direct Data Placement) Working Group: see http://www.ietf.org/html.charters/rddp-charter.html. This group is chartered to define a suite of protocols enabling remote direct data placement over arbitrary network transports with SCTP and TCP being of primary interest.

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