1. Information technology. International standardized profile RA. Relaying the connectionless-mode network service. Definition of profile RA51.51, relaying the connectionless-mode network service between CSMA/CD LAN subnetworks Part 5, (15th January 1995) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (16 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗