{"id":"https://openalex.org/W4254003290","doi":"https://doi.org/10.1109/glocom.2014.7417304","title":"LRB: An Efficient Fast Local Rerouting Algorithm for Fat-Tree Networks","display_name":"LRB: An Efficient Fast Local Rerouting Algorithm for Fat-Tree Networks","publication_year":2014,"publication_date":"2014-12-01","ids":{"openalex":"https://openalex.org/W4254003290","doi":"https://doi.org/10.1109/glocom.2014.7417304"},"language":"en","primary_location":{"id":"doi:10.1109/glocom.2014.7417304","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2014.7417304","pdf_url":null,"source":{"id":"https://openalex.org/S4363607712","display_name":"2015 IEEE Global Communications Conference (GLOBECOM)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE Global Communications Conference (GLOBECOM)","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100327327","display_name":"Xin Zhang","orcid":"https://orcid.org/0000-0001-5647-2777"},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Xin Zhang","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, PRC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, PRC","institution_ids":["https://openalex.org/I889458895"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063949030","display_name":"Chunzhi He","orcid":null},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Chunzhi He","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, PRC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, PRC","institution_ids":["https://openalex.org/I889458895"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102962414","display_name":"Kwan L. Yeung","orcid":"https://orcid.org/0000-0003-4590-8760"},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Kwan L. Yeung","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, PRC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, PRC","institution_ids":["https://openalex.org/I889458895"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100370053","display_name":"Zhiyong Chen","orcid":"https://orcid.org/0000-0002-2033-4249"},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Zhiyong Chen","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, PRC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, PRC","institution_ids":["https://openalex.org/I889458895"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I889458895"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10829","display_name":"Interconnection Networks and Systems","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10829","display_name":"Interconnection Networks and Systems","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10714","display_name":"Software-Defined Networks and 5G","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10847","display_name":"Advanced Optical Network Technologies","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/network-packet","display_name":"Network packet","score":0.736743688583374},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6997932195663452},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.46991387009620667},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4600401520729065},{"id":"https://openalex.org/keywords/path","display_name":"Path (computing)","score":0.4418294131755829},{"id":"https://openalex.org/keywords/packet-loss","display_name":"Packet loss","score":0.42855218052864075},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.4206174910068512}],"concepts":[{"id":"https://openalex.org/C158379750","wikidata":"https://www.wikidata.org/wiki/Q214111","display_name":"Network packet","level":2,"score":0.736743688583374},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6997932195663452},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.46991387009620667},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4600401520729065},{"id":"https://openalex.org/C2777735758","wikidata":"https://www.wikidata.org/wiki/Q817765","display_name":"Path (computing)","level":2,"score":0.4418294131755829},{"id":"https://openalex.org/C54108766","wikidata":"https://www.wikidata.org/wiki/Q391064","display_name":"Packet loss","level":3,"score":0.42855218052864075},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.4206174910068512},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/glocom.2014.7417304","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2014.7417304","pdf_url":null,"source":{"id":"https://openalex.org/S4363607712","display_name":"2015 IEEE Global Communications Conference (GLOBECOM)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE Global Communications Conference (GLOBECOM)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W1556064538","https://openalex.org/W2029407480","https://openalex.org/W2042876290","https://openalex.org/W2100135368","https://openalex.org/W2123016589","https://openalex.org/W2157116979","https://openalex.org/W2157614013","https://openalex.org/W2158800303","https://openalex.org/W2162984079","https://openalex.org/W3152000407","https://openalex.org/W4238465620","https://openalex.org/W6683330524"],"related_works":["https://openalex.org/W2389214306","https://openalex.org/W4235240664","https://openalex.org/W2965083567","https://openalex.org/W1838576100","https://openalex.org/W2095886385","https://openalex.org/W2889616422","https://openalex.org/W2089704382","https://openalex.org/W2027014711","https://openalex.org/W3199712142","https://openalex.org/W2134402536"],"abstract_inverted_index":{"A":[0,43,137],"fat-tree":[1,15],"network":[2,9,65,90,226],"is":[3,22,40,110,135,140,152,200],"scalable,":[4],"but":[5],"the":[6,14,64,95,117,122,150,169,204,220],"probability":[7],"of":[8,27,97,172,188,196],"faults":[10],"also":[11],"increases":[12],"with":[13,209],"size.":[16],"Faulttolerant":[17],"routing":[18],"in":[19,71,112,165],"fat":[20],"tree":[21],"thus":[23],"particularly":[24],"important.":[25],"Instead":[26],"relying":[28],"on":[29],"a":[30,35,99,132,141,192],"time-consuming":[31],"centralized":[32],"recovery":[33,81],"process,":[34],"fast":[36,46],"local":[37,47,101],"rerouting":[38,48,102],"algorithm":[39],"highly":[41],"desirable.":[42],"deflection":[44],"based":[45],"algorithm,":[49,103,191],"which":[50,83],"we":[51,211],"call":[52],"it":[53],"Local":[54,105],"Rerouting":[55,106],"by":[56,107,213,225],"Deflection":[57],"(LRD),":[58],"was":[59],"recently":[60],"proposed":[61,111],"to":[62,77,126,149,202],"handle":[63],"fault":[66,182],"locally":[67],"and":[68,88,176],"dynamically.":[69],"However,":[70],"LRD,":[72,98,210],"all":[73],"rerouted":[74],"packets":[75,124,179],"need":[76],"follow":[78],"an":[79,145],"elongated":[80],"path,":[82],"incurs":[84],"extra":[85],"propagation":[86],"delay":[87],"additional":[89],"congestion.":[91],"Aiming":[92],"at":[93],"addressing":[94],"inefficiency":[96],"new":[100],"called":[104],"Backtracking":[108],"(LRB),":[109],"this":[113],"paper.":[114],"With":[115],"LRB,":[116],"faultdetecting":[118],"switch":[119,134,139,142,205],"immediately":[120],"reroutes":[121],"affected":[123],"back":[125],"where":[127,144],"they":[128],"came":[129],"from":[130,143],"until":[131],"V-turn":[133,138],"found.":[136,153],"alternate":[146],"minimal":[147],"path":[148,166],"destination":[151],"We":[154],"show":[155,212],"that":[156,215],"LRB":[157,190,217],"can":[158,218],"minimize":[159,219],"packet":[160],"loss,":[161],"incur":[162],"no":[163],"penalty":[164],"length":[167],"(except":[168],"small":[170],"amount":[171],"backtracked":[173,178],"in-flight":[174],"packets),":[175],"treat":[177],"as":[180],"implicit":[181],"notification.":[183],"To":[184],"ensure":[185],"efficient":[186],"implementation":[187],"our":[189,216],"simple":[193],"self-routing":[194],"(instead":[195],"table":[197],"lookup)":[198],"mechanism":[199],"devised":[201],"simplify":[203],"operation.":[206],"As":[207],"compared":[208],"simulations":[214],"TCP":[221],"performance":[222],"degradation":[223],"caused":[224],"faults.":[227]},"counts_by_year":[],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}