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- Network Working Group Stephen M. Wolfe
- Request for Comments: 38 UCLA CCN
- 20 March 1970
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- Comments on Network Protocol
- from NWG/RFC #36
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- The proposed protocol does not allow for the possible multiplexing of
- connections over links.
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- Generally, this presents no problem, but it might cause loading
- restrictions in the future. Two cases where routing multiple
- connections over the same link are apparent:
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- a) Where a user has several high speed connections, such as
- between processes that transmit files over the network.
- Assigning these connections to the same link limits the
- percentage of network resources that may be used by that
- user. This becomes particularly important when several
- store-and-forward IMP's are used by the network to effect
- the communication.
- b) When two hosts each have their own independent network and
- desire to allow access to the other hosts's network over
- the ARPA net, a shortage of links may develop. Again, the
- assignment of several connections to the same link could
- help solve the problem.
-
- The following changes in the protocol would make possible the future
- use of multiplexed links. It is not necessary to add the
- multiplexing, itself, to the protocol at this time.
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- a) The END and RDY must specify relevant sockets in addition to
- the link number. Only the local socket name need be
- supplied.
- b) Problems arise with the RSM and SPD commands. Should they
- refer to an entire link, or just to a given connection?
- Since there is a proposal to modify the RFNM to accommodate
- these commands, it might be better to add another set of
- commands to block and unblock a connection, but I am not
- convinced that that is the best solution.
- c) The destintation socket must be added to the header of each
- message on the data link. Presumably this would consist of
- 32 bits immediately after the header and before the marking.
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- [ This RFC was put into machine readable form for entry ]
- [ into the online RFC archives by Karl Reinsch 1/97 ]
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