Muchiitiko chekushandiswa kweNPB, dambudziko guru kune vatariri kurasikirwa nemapaketi kunokonzerwa nekuzara kwemapaketi ane mirror uye network dzeNPB. Kurasikirwa nemapaketi muNPB kunogona kukonzera zviratidzo zvinotevera zvezvishandiso zvekuongorora kumashure:
- Alarm inogadzirwa kana chiratidzo chekutarisa mashandiro ebasa reAPM chaderera, uye mwero wekubudirira kwekutengeserana waderera
- Alarm yekusashanda kweNPM network monitoring indicator inogadzirwa
- Sisitimu yekutarisa kuchengetedzeka inotadza kuona kurwiswa kwenetiweki nekuda kwekushaikwa kwezviitiko
- Kurasikirwa kwezviitiko zvekuongorora maitiro ebasa zvinokonzerwa nehurongwa hwekuongorora basa
... ...
Senzira yekubata nekugovera data yekutarisa Bypass, kukosha kweNPB kuri pachena. Panguva imwe chete, nzira yainoshandisa data packet traffic yakasiyana zvikuru nekuchinja kwenetwork, uye tekinoroji yekudzora kuzara kwetraffic yemasevhisi mazhinji e live network haishande kuNPB. Maitiro ekugadzirisa kurasikirwa kwepacket yeNPB, ngatitangei nekuongorora chikonzero chekurasikirwa kwepacket kuti tione!
Kuongororwa kweKurasikirwa kweNPB/TAP Packet Root Cause Ongororo
Chekutanga, tinoongorora nzira chaiyo yekufambisa zvinhu uye hukama hwemap pakati pesystem nekupinda nekubuda kwenetwork yeNPB yedanho rekutanga kana redanho rekutanga. Hazvina mhosva kuti rudzii rwenetwork NPB inoumbwa, senzira yekuunganidza zvinhu, kune hukama hwekupinda nekubuda kwezvinhu pakati pe "access" uye "output" yesystem yese.
Zvadaro tinotarisa maitiro ebhizinesi eNPB kubva pamaonero emachipisi eASIC pamudziyo mumwe chete:
Chinhu 1: "Muyero wekufambisa" uye "muyero wekushandisa wepanyama" weinterfaces dzekupinda nekubuda hauna kuenzana, zvichikonzera kuti huwandu hwakawanda hwema micro-bursts huve mhedzisiro isingadzivisike. Muzviitiko zvema many-to-one kana many-to-many traffic aggregation, muyero wekushandisa weinterface yekubudisa unowanzova mudiki pane muyero wekushandisa weinterface yekupinda. Semuenzaniso, ma channel gumi e10G collection uye 1 channel ye10G output; Mumamiriro ezvinhu e multilevel deployment, NPBBS dzese dzinogona kuonekwa sedzakazara.
Chinhu chechipiri: Zvishandiso zveASIC chip cache zvishoma. Kana tichitarisa chip chinoshandiswa zvakanyanya pari zvino, chip ine 640Gbps exchange capacity ine cache ye3-10Mbytes; Chip ine 3.2Tbps capacity ine cache ye20-50 mbytes. Kusanganisira BroadCom, Barefoot, CTC, Marvell nevamwe vagadziri veASIC chips.
Chinhu 3: Nzira yemazuva ano yekudzora kuyerera kwePFC kubva pamagumo kusvika pamagumo haishande kumasevhisi eNPB. Chinangwa chikuru chenzira yekutonga kuyerera kwePFC ndechekuwana mhinduro yekudzora kuyerera kwemagetsi kubva pamagumo kusvika pamagumo, uye pakupedzisira kuderedza kutumira mapaketi kune protocol stack ye endpoint yekutaurirana kuderedza kuzara kwemagetsi. Zvisinei, paki inobva kumasevhisi eNPB imapaketi akaenzaniswa, saka nzira yekugadzirisa kuzara kwemagetsi inogona kuraswa kana kuchengetwa chete.
Zvinotevera ndizvo zvinoonekwa ne micro-burst yakajairika pa flow curve:
Tichitora 10G interface semuenzaniso, mudhayagiramu yekuongorora mafambiro etraffic yedanho rechipiri, huwandu hwetraffic hunochengetwa pa3Gbps kwenguva yakareba. Pachati yekuongorora mafambiro emicro millisecond, kuwedzera kwetraffic (MicroBurst) kwakapfuura zvakanyanya chiyero chemuviri che10G interface.
Maitiro Akakosha Ekuderedza Kuputika kweNPB Microburst
Deredza kukanganisa kwekusawirirana kwehuwandu hwemashandisirwo emuviri akaenzana- Pakugadzira network, deredza asymmetric input uye output physical interface rates zvakanyanya sezvinobvira. Nzira yakajairika ndeyekushandisa high rate uplink interface link, uye kudzivirira asymmetric physical interface rates (semuenzaniso, kukopa 1 Gbit/s uye 10 Gbit/s traffic panguva imwe chete).
Gadzirisa mutemo wekuchengetedza cache weNPB service- Mutemo wekuchengetedza cache unoshanda kune sevhisi yekuchinja haushande kune sevhisi yekutumira data yeNPB. Mutemo wekuchengetedza cache we static guarantee + Dynamic sharing unofanirwa kushandiswa zvichibva pane zvinoitwa neNPB service. Kuitira kuderedza kukanganiswa kweNPB microburst pasi pemutemo wezvino we chip hardware environment.
Shandisa manejimendi yeinjiniya yetraffic yakarongwa- Shandisai nzira yekutarisira mabasa einjiniya yekufambisa zvinhu (priority traffic engineering classification management) zvichienderana nekupatsanurwa kwemafambiro emotokari. Ita shuwa kuti mhando yebasa remitsara yakasiyana-siyana yekufambisa zvinhu yakavakirwa pamiganhu yemitsara yenzvimbo, uye ita shuwa kuti mapaketi ekufambisa zvinhu anofambiswa nevashandisi anogona kutumirwa pasina kurasikirwa nemapaketi.
Mhinduro yakanaka yesystem inovandudza kugona kwekuchengetedza mapaketi uye kugona kugadzira traffic- Inobatanidza mhinduro kuburikidza nenzira dzakasiyana-siyana dzehunyanzvi kuti iwedzere kugona kwekuchengetedza mapaketi echipu cheASIC. Nekugadzira kuyerera kwemvura munzvimbo dzakasiyana, micro-burst inova micro-uniform flow curve mushure mekuumbwa.
Mhinduro yeMylinking™ Micro Burst Traffic Management
Chirongwa 1 - Nzira yekugadzirisa cache yakagadziriswa netiweki + manejimendi yekutarisira mhando yebasa rakarongwa netiweki yese
Maitiro ekutarisira cache akagadzirirwa network yese
Zvichibva pakunzwisisa kwakadzama kwehunhu hwebasa reNPB uye zviitiko zvebhizinesi zvinoshanda zvevatengi vakawanda, zvigadzirwa zveMylinking™ zvinounganidza traffic zvinoshandisa seti ye "static assurance + dynamic sharing" NPB cache management strategy ye network yese, iyo ine mhedzisiro yakanaka pakutarisira traffic cache kana paine akawanda asymmetric input uye output interfaces. Kushivirira kwe microburst kunowanikwa zvakanyanya kana ASIC chip cache iripo yakagadziriswa.
Tekinoroji yekugadzira Microburst - Kutungamira kwakavakirwa pazvinhu zvakakosha zvebhizinesi
Kana chikamu chekutarisa traffic chikashandiswa chakazvimiririra, chinogonawo kurongwa zvichienderana nekukosha kwechishandiso chekuongorora chemashure kana kukosha kwedata rebasa pacharo. Semuenzaniso, pakati pezvishandiso zvakawanda zvekuongorora, APM/BPC ine kukosha kukuru kupfuura zvishandiso zvekuongorora kuchengetedzwa/kuchengetedza nekuti inosanganisira kutarisa nekuongorora data rakasiyana-siyana rezviratidzo zvemabhizinesi akakosha. Saka, pachiitiko ichi, data rinodiwa neAPM/BPC rinogona kutsanangurwa serinonyanya kukosha, data rinodiwa nezvishandiso zvekuongorora kuchengetedzwa/kuchengetedza rinogona kutsanangurwa serinonyanya kukosha, uye data rinodiwa nezvimwe zvishandiso zvekuongorora rinogona kutsanangurwa serinonyanya kukosha. Kana mapaketi edata akaunganidzwa apinda muchiteshi chekupinda, zvinhu zvinokosha zvinotsanangurwa zvichienderana nekukosha kwemapaketi. Mapaketi ezvinonyanya kukosha anotumirwa zviri nani mushure mekunge mapaketi ezvinonyanya kukosha atumirwa, uye mapaketi ezvimwe zvinotarisirwa anotumirwa zviri nani mushure mekunge mapaketi ezvinonyanya kukosha atumirwa. Kana mapaketi ezvinonyanya kukosha akaramba achisvika, mapaketi ezvinonyanya kukosha anotumirwa zviri nani. Kana data rekupinda rikanyanya kupfuura kugona kwekutumira kwechiteshi chekuburitsa kwenguva yakareba, data rakawandisa rinochengetwa mucache yemudziyo. Kana cache yakazara, mudziyo unorasa mapaketi edanho repasi. Iyi nzira yekutarisira yakakosha inoita kuti zvishandiso zvakakosha zvekuongorora zvigone kuwana data rekutanga retraffic rinodiwa kuti riongororwe munguva chaiyo.
Tekinoroji yekugadzira Microburst - nzira yekuvimbisa kupatsanurwa kwemhando yese yebasa re network
Sezvakaratidzwa mumufananidzo uri pamusoro apa, tekinoroji yekupatsanura traffic inoshandiswa kusiyanisa masevhisi akasiyana pamidziyo yese pa access layer, aggregation/core layer, uye output layer, uye zvinokosheswa zvemapaketi akatorwa zvinoiswazve mumamark. SDN controller inopa mutemo we traffic priority nenzira yakabatana uye inoushandisa kumidziyo yekutumira. Midziyo yese iri kutora chikamu mu networking inorongwa kune akasiyana priority queues zvichienderana nezvinonyanya kutakurwa nemapaketi. Nenzira iyi, ma packets e small-traffic advanced priority anogona kuwana zero packet loss. Kugadzirisa zvinobudirira dambudziko rekurasikirwa kwepacket reAPM monitoring uye special service audit bypass traffic services.
Mhinduro 2 - GB-level Expansion System Cache + Traffic Shaping Scheme
Cache Yakawedzerwa yeSisitimu yeGB Level
Kana mudziyo wechikamu chedu chekutenga traffic uine hunyanzvi hwepamusoro hwekugadzirisa, unogona kuvhura nzvimbo yakati wandei mundangariro (RAM) yemudziyo seBuffer yepasi rose yemudziyo, izvo zvinovandudza zvikuru kugona kweBuffer kwemudziyo. Kune mudziyo mumwe chete wekutenga, kugona kweGB kunogona kupihwa senzvimbo yekuchengetedza yemudziyo wekutenga. Iyi tekinoroji inoita kuti kugona kweBuffer kwemudziyo wedu wekutenga traffic kuve kwakakwirira kane mazana kupfuura kwemudziyo wekutenga wekare. Pasi pehuwandu hwakafanana hwekufambisa, nguva yepamusoro ye micro burst yemudziyo wedu wekutenga traffic inova yakareba. Millisecond level inotsigirwa nemidziyo yekutenga yekare yakagadziridzwa kusvika padanho rechipiri, uye nguva ye micro-burst inogona kutsungirira yakawedzerwa nezviuru zvenguva.
Kugona Kuumba Mitsetse Yemigwagwa Yakawanda
Tekinoroji yekugadzira Microburst - mhinduro yakavakirwa paBuffer Caching hombe + Traffic Shaping
Nekukwanisa kukuru kweBuffer, data retraffic rinogadzirwa ne micro-burst rinochengetwa, uye tekinoroji yekugadzira traffic inoshandiswa mu outgoing interface kuti pave nekubuda kwakanaka kwemapaketi mu analysis tool. Kuburikidza nekushandisa tekinoroji iyi, chiitiko chekurasikirwa kwepaketi chinokonzerwa ne micro-burst chinogadziriswa zvakanyanya.
Nguva yekutumira: Kukadzi-27-2024
