... IDPROCESSRestrictedproxyLocal IDPROCESSRestrictedproxyKerberosticket (4 ) CommunicationSite A(Kerberos)Site C(Kerberos)Site B(Unix)Storagesystem (5 ) Remote file access requestor retrieval of proxy credentialfrom ... (1 992) IEEE Communications Magazine, 3 0(4 ), 36.9. Catlett, C. (1 992) IEEE Communications Magazine, 42.10. DeFanti, T. et al. (1 996) International Journal of Supercomputing Applications, 1 0(2 ), ... AAL5 (the ATM adaptation layerfor framed traffic) when using the Internet or ATM. The MPICH library (a portable imple-mentation of the Message Passing Interface (MPI) standard) and CAVEcomm (networkingfor...