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Internet protocol suite
Application layer
Transport layer
Internet layer
Link layer

The Internet Link protocol or IL is a connection-based transport-layer protocol designed at Bell Labs originally as part of the Plan 9 operating system and is used to carry 9P. It is assigned the Internet Protocol number of 40. It is similar to TCP but much simpler.

Its main features are:

As of the Fourth Edition of Plan 9, 2003, IL is deprecated in favor of TCP/IP because it doesn't handle long-distance connections well.[1]

See also

References

  1. ^ "Plan 9 — Fourth Edition Release Notes". Lucent Technologies. June 2003. Retrieved August 3, 2018. We are phasing out the IL protocol since it doesn't handle long-distance connections well (and long-distance networks don't handle it well, either). IL is still used by fs(4) but TCP has become the standard protocol for all other services.

Further reading


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