BBN Communications Corp duly launched the T/100 Host-End Processor as the newest member of its BBN Integrated SNA Networks line (CI No 1,056). The T/100 is a high-speed communications processor that links IBM SNA hosts and 37XX front-end processors to a BBN private packet network, supporting SNA links via X25 at up to 256Kbps. The network uses BBN’s proprietary Virtual Domain Architecture, designed to simplify SNA network configuration and operations – the T/100 looks to the SNA host or 37XX as a Physical Unit 4/5, accessing applications through cross-domain connections, and any user device, such as a 3270, can communicate over the network backbone via an SNA packet assembler disassembler. The user is connected to a T/100, which accesses the desired host application via the cross-domain facility; this cuts out individual device polling from the 37XX, reducing its workload and enabling many low-speed lines to be replaced with a high-speed packet backbone. The T/100 uses a multi-processor hardware design with redundancy and modular growth. It starts at $50,000, out in 90 days.