{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/20438"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/20438","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Nonblocking packet switching with shift-register rings","abstract":"This research investigates packet switching with gigabit-per-second ports for integrated broadband services. The Pulsar switch design is based on a fast word-parallel shift-register ring, and it is a platform for studying the fundamentals of packet switching.","abstract_html":"This research investigates packet switching with gigabit-per-second ports for integrated broadband services. The Pulsar switch design is based on a fast word-parallel shift-register ring, and it is a platform for studying the fundamentals of packet switching.","abstract_has_math":false,"creators":["Murakami, Gary James"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Computer Science","degree_department":null,"school":null,"contributors":["Campbell, Roy H."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-05-07T12:39:12Z","date_published":"2011-05-07T12:39:12Z","updated_at":"2026-07-22T22:25:16Z","subjects":["Computer Science"],"languages":["eng"],"rights":["Copyright 1991 Murakami, Gary James"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9210928","(UMI)AAI9210928"],"render_values":[{"text":"AAI9210928","href":null,"code":true},{"text":"(UMI)AAI9210928","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/20438","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Campbell, Roy H."]},{"key":"dc:creator","label":"Author","values":["Murakami, Gary James"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-05-07T12:39:12Z","10000-01-01","1991"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Computer Science"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Computer Science"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 1991 Murakami, Gary James"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9210928","(UMI)AAI9210928","http://hdl.handle.net/2142/20438"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["This research investigates packet switching with gigabit-per-second ports for integrated broadband services. The Pulsar switch design is based on a fast word-parallel shift-register ring, and it is a platform for studying the fundamentals of packet switching.","With simple First-Come-First-Served (FCFS) input queues, the phenomenon of Head-Of-Line (HOL) blocking lowers throughput. Simulation and analysis of several design alternatives illuminate the problem. A spectrum of queue configurations is constructed from the preliminary studies. Results confirm that non-blocking throughput can be reached with output queueing or with non-FCFS input queueing. Per-destination subqueues at each input port achieve non-blocking throughput with minimal queue memory bandwidth.","With a trivial queue service discipline, a flood of best-effort data traffic can obstruct bandwidth-sensitive video traffic. The Pulsar bandwidth accounting algorithm adjusts the priority of each stream based on whether it is below or above its allocation. A multiple-token medium-access-control mechanism implements prioritized round-robin service, and it can be extended to order traffic classes sensitive to delay or jitter. These developments form a service discipline for distributed queues that guarantees allocated bandwidth.","The Pulsar switch can be implemented easily with existing technology, and it compares favorably with other high-throughput switch designs. The design can be applied to both network switches and computer backplanes which require low latency and feedback control paths.","The research covers the fundamentals of high-speed packet switching including queue configurations for non-blocking throughput, and queue service discipline and medium-access control for allocated bandwidth. The research breaks new ground by combining non-blocking throughput and allocated bandwidth into a switch design for integrated broadband services.","Made available in DSpace on 2011-05-07T12:39:12Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9210928.pdf: 3979743 bytes, checksum: cbcc7d29939c22b5f43e1ec8fa9f7a66 (MD5) Previous issue date: 1991","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:43:54Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:19:15-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only"]},{"key":"dc:title","label":"Title","values":["Nonblocking packet switching with shift-register rings"]}]}],"canonical_facts":{"dc:contributor":["Campbell, Roy H."],"dc:creator":["Murakami, Gary James"],"dc:date":["2011-05-07T12:39:12Z","10000-01-01","1991"],"dc:description":["This research investigates packet switching with gigabit-per-second ports for integrated broadband services. The Pulsar switch design is based on a fast word-parallel shift-register ring, and it is a platform for studying the fundamentals of packet switching.","With simple First-Come-First-Served (FCFS) input queues, the phenomenon of Head-Of-Line (HOL) blocking lowers throughput. Simulation and analysis of several design alternatives illuminate the problem. A spectrum of queue configurations is constructed from the preliminary studies. Results confirm that non-blocking throughput can be reached with output queueing or with non-FCFS input queueing. Per-destination subqueues at each input port achieve non-blocking throughput with minimal queue memory bandwidth.","With a trivial queue service discipline, a flood of best-effort data traffic can obstruct bandwidth-sensitive video traffic. The Pulsar bandwidth accounting algorithm adjusts the priority of each stream based on whether it is below or above its allocation. A multiple-token medium-access-control mechanism implements prioritized round-robin service, and it can be extended to order traffic classes sensitive to delay or jitter. These developments form a service discipline for distributed queues that guarantees allocated bandwidth.","The Pulsar switch can be implemented easily with existing technology, and it compares favorably with other high-throughput switch designs. The design can be applied to both network switches and computer backplanes which require low latency and feedback control paths.","The research covers the fundamentals of high-speed packet switching including queue configurations for non-blocking throughput, and queue service discipline and medium-access control for allocated bandwidth. The research breaks new ground by combining non-blocking throughput and allocated bandwidth into a switch design for integrated broadband services.","Made available in DSpace on 2011-05-07T12:39:12Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9210928.pdf: 3979743 bytes, checksum: cbcc7d29939c22b5f43e1ec8fa9f7a66 (MD5) Previous issue date: 1991","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:43:54Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:19:15-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only"],"dc:identifier":["AAI9210928","(UMI)AAI9210928","http://hdl.handle.net/2142/20438"],"dc:language":["eng"],"dc:rights":["Copyright 1991 Murakami, Gary James"],"dc:subject":["Computer Science"],"dc:title":["Nonblocking packet switching with shift-register rings"],"dc:type":["text"],"thesis:degree_discipline":["Computer Science"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:16Z"}