Experience and Results from the Implementation of an ATM
Richard Black and Simon Crosby
University of Cambridge Computer Laboratory
Pembroke Street, Cambridge, CB2 3QG, U.K.
This paper describes the implementation of an ATM protocol stack as a
protocol family within a 4.3 BSD derived Unix. A novel approach to
the implementation of the management and control functions for the ATM
protocol stack has been adopted. The data path is implemented within
the kernel but all control and management functions are implemented by
a user space daemon. An encapsulation of IP on the ATM protocol is
provided by means of a logical IP interface. The mapping of IP
addresses to ATM addresses is performed by the user space daemon.
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