Information technology. Telecommunications and information exchange between systems. Local and metropolitan area networks. Specific requirements - Frame replicaton and elimination for reliability Ingestion-build-84997 Petroleum industry

Petroleum industry

PAS 221 is part of a series of PASs which tackle different elements of the food chain

The structure and content of this document have been brought in line with ISO 898-1

ISO 7971‑2 provides you with the test methods and procedures for determining the bulk density of cereals through the method of traceability for measuring instruments

BS 1363-2 Two categories of conversion plugs are specified

Information technology. Telecommunications and information exchange between systems. Local and metropolitan area networks. Specific requirements - Frame replicaton and elimination for reliability Ingestion-build-84997 Petroleum industryWhat is this standard about? This standard specifies procedures, managed objects, and protocols for bridges and end systems that provide identification and replication of packets for redundant transmission, identification of duplicate packets, and elimination of duplicate packets. It is not concerned with the creation of the multiple paths over which the duplicates are transmitted.