article · 2018

B-ISBN Onboard Processing Fast Packet Switch Developed

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Abstract

Future satellite communications applications will require a packet-switched onboard satellite processing system to route packets at very high speeds from uplink beams to different downlink beams. The rapid emergence of point-to-multipoint services, and the important role of satellites in a national and global information infrastructure, makes the multicast function essential to a fast packet switch (FPS). NASA Lewis Research Center's Digital System Technology Branch has been studying possible architectures for high-speed onboard-processing satellite systems. As part of this research, COMSAT Laboratories developed a broadband integrated services digital network (B-ISDN) fast packet switch for Lewis that was delivered on December 1994. The fast packet switch consists of eight inputs and eight outputs that can receive and transmit data, respectively, at a rate of 155 Mbps. The switch features multiple priorities (three) and multiple-size (three) satellite virtual cells that are similar to ATM cells in length (52 bytes). In addition, the fast packet switch features a congestion-control algorithm that allows users to set different thresholds for individual destination ports, thus throttling back the traffic from the transmitting port.

Cite this paper

APA 7

nasa. (2018). B-ISBN Onboard Processing Fast Packet Switch Developed.

MLA 9

nasa. “B-ISBN Onboard Processing Fast Packet Switch Developed.” 2018.

Chicago

nasa. 2018. “B-ISBN Onboard Processing Fast Packet Switch Developed.”

Harvard

nasa (2018) ‘B-ISBN Onboard Processing Fast Packet Switch Developed’.

BibTeX

@article{nasa2018isbn,
  title = {{B-ISBN Onboard Processing Fast Packet Switch Developed}},
  author = {nasa},
  year = {2018}
}

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