Mu miterere ya none y'umuyoboro w'itumanaho, gusubirwamo kw'urwego rwa 2 ntabwo bishobora kuganirwaho kugira ngo ubucuruzi bukomeze, kugabanya igihe cyo kudakora, no kwirinda inkubi z'umuyaga ziterwa n'imirongo y'itumanaho. Ku bijyanye no gushyira mu bikorwa gusubirwamo kw'urwego rwa 2, ikoranabuhanga ritatu ni ryo rigenga: Spanning Tree Protocol (STP), Multi-Chassis Link Aggregation Group (MLAG), na Switch Stacking. Ariko se wahitamo ute iryo koranabuhanga ryawe? Iyi nyandiko isesengura buri koranabuhanga, igereranya ibyiza n'ibibi byaryo, kandi itanga ibitekerezo bifatika kugira ngo bigufashe gufata icyemezo gishingiye ku makuru—cyagenewe abahanga mu by'ikoranabuhanga, abayobozi b'ikoranabuhanga, n'undi wese ufite inshingano zo kubaka ibikorwa remezo byizewe kandi bishobora kwaguka bya Layer 2.
Gusobanukirwa iby'ibanze: Uburyo bwo kongera gukoresha Layer 2 ni iki?
Uburyo bwo gusesengura umurongo wa 2 busobanura uburyo bwo gushushanya imiterere y’imiyoboro y’itumanaho hakoreshejwe imirongo, swichi, cyangwa inzira kugira ngo niba igice kimwe cyananiwe, abantu bahita basubira kuri porogaramu. Ibi bikuraho ingingo imwe y’inanirwa (SPOFs) kandi bigakomeza gukora porogaramu z’ingenzi—waba ucunga umuyoboro muto w’ibiro, ikigo kinini cy’ubucuruzi, cyangwa ikigo cy’amakuru gifite imikorere myiza. Ibisubizo bitatu by’ingenzi—STP, MLAG, na Stacking—buri buryo bukoresha uburyo butandukanye bwo gusesengura, bufite aho buhurira mu buryo bwihariye mu buryo bwizewe, ikoreshwa ry’umurongo w’itumanaho, uburyo bugoye bwo gucunga, n’ikiguzi.
1. Gahunda y'Igenamigambi ry'Icyiciro cya Mbere (STP): Ifarashi y'Abakozi Basanzwe Bashinzwe Kugabanya Abakozi
Ikoranabuhanga rya STP rikora rite?
Yavumbuwe mu 1985 na Radia Perlman, STP (IEEE 802.1D) ni ikoranabuhanga rya kera cyane kandi rishyigikiwe cyane rya Layer 2 redundancy. Intego yayo nyamukuru ni ukurinda imiyoboro y'itumanaho binyuze mu kumenya no guhagarika imiyoboro idakora neza, hagakorwa topology imwe y' "igiti". STP ikoresha Bridge Protocol Data Units (BPDUs) kugira ngo ihitemo ikiraro cy'umuzi (switch ifite Bridge ID yo hasi cyane), ibare inzira ngufi igana ku muzi, kandi ihagarike imiyoboro idakenewe kugira ngo ikureho imiyoboro.
Uko igihe cyagiye gihita, STP yagiye ihinduka kugira ngo ikemure imbogamizi zayo za mbere: RSTP (Rapid STP, IEEE 802.1w) igabanya igihe cyo guhuza kuva ku masegonda 30-50 kugeza ku masegonda 1-6 binyuze mu koroshya imiterere y'ibyambu no gushyiraho Proposal/Agreement (P/A). MSTP (Multiple Spanning Tree Protocol, IEEE 802.1s) yongeraho inkunga kuri VLAN nyinshi, yemerera amatsinda atandukanye ya VLAN gukoresha inzira zitandukanye zo kohereza no gutuma VLAN ihuza ubwinshi bw'imizigo - gukemura ikibazo cy'uko "VLAN zose zisangiye inzira imwe" cya STP ya kera.
Ibyiza bya STP
- Irahuye cyane: Ishyigikiwe n'ibikoresho byose bigezweho bya TAP, hatitawe ku mucuruzi (Mylinking).
- Igiciro gito: Nta bikoresho by'inyongera cyangwa uruhushya bisabwa—bikoreshwa mu buryo busanzwe kuri swichi nyinshi.
- Byoroshye gushyira mu bikorwa: Imiterere y'ibanze ni mike, bigatuma iba nziza ku miyoboro mito kugeza ku mito (SMBs) ifite ubushobozi buke bw'ikoranabuhanga.
- Kwizerwa byagaragaye: Ikoranabuhanga rikuze rifite imyaka myinshi rikoreshwa mu buryo bufatika, rikora nk' "umuyoboro w'umutekano" wo gukumira urujya n'uruza rw'amakuru.
Ibibi bya STP
- Gutakaza bandwidth: Amasano adakenewe arafunze (nibura 50% mu buryo bwa dual-uplink), bityo ntuba ukoresha bandwidth yose ihari.
- Guhuza buhoro buhoro (STP ya kera): STP isanzwe ishobora gufata amasegonda 30-50 kugira ngo ikire nyuma yo gucika intege k'umurongo—ni ingenzi kuri porogaramu nko mu bikorwa by'imari cyangwa mu nama za videwo.
- Kugabanya umutwaro: STP ya kera ishyigikira inzira imwe gusa ikora; MSTP irayinoza ariko yongeraho uburyo bwo kuyishyiraho.
- Ubugari bw'umuyoboro: STP igarukira ku gusimbuka inshuro 7, bishobora kugabanya imiterere minini y'umuyoboro.
Imiti myiza yo gukoresha kuri STP
STP (cyangwa RSTP/MSTP) ni nziza kuri:
- Ubucuruzi buto n'ubuciriritse (SMBs) bufite ibibazo by'ibanze byo gusiba abakozi ndetse n'ingengo y'imari nto y'ikoranabuhanga.
- Imiyoboro ya kera aho kuvugurura kuri MLAG cyangwa Stacking bidashoboka.
- Nk' "umurongo wa nyuma w'ubwirinzi" bwo gukumira imiyoboro isanzwe ikoresha MLAG cyangwa Stacking.
- Imiyoboro ifite ibikoresho bivanze by’ubucuruzi, aho guhuza ari cyo kintu cy’ingenzi kurusha ibindi.
2. Guhuza Switch: Koroshya imicungire hakoreshejwe Logical Virtualization
Guhuza Switch Bikora Gute?
Guhuza Switch (urugero, Mylinking TAP Switch) bihuza switch 2-8 (cyangwa zirenga) zisa hakoreshejwe imiyoboro n'insinga byihariye, bigatuma habaho switch imwe isobanutse. Iyi switch ikoreshwa mu buryo bwa virtualized isangiye IP imwe yo gucunga, dosiye yo gushyiraho, plane yo kugenzura, imbonerahamwe y'aderesi ya MAC, na STP instance. Hindura nkuru itoranywa (ishingiye ku byihutirwa na aderesi ya MAC) kugira ngo icunge stack, hamwe na switch zo gusimbuza ziteguye gufata umwanya iyo master yananiwe. Inzira zinyura muri stack zinyuzwa mu muyoboro w'inyuma wihuse, kandi amatsinda ya Link Aggregation Groups (LAGs) akora mu buryo bwa active-active nta gufunga STP.
Ibyiza byo Gushyira Switch mu byiciro
- Gucunga byoroshye: Gucunga ama-switch menshi nk'igikoresho kimwe cy'ubwenge—IP imwe, imiterere imwe, n'ahantu hamwe ho kugenzura.
- Gukoresha umuyoboro munini w'itumanaho: Amasano adahagije arakora (nta gufunga), kandi imiyoboro y'inyuma y'imodoka itanga umuyoboro w'itumanaho uhuriweho.
- Gucika intege vuba: Gucika intege vuba bitwara milisegonda 1-3, bigatuma hatabaho gucika intege hafi ya zero.
- Uburyo bwo kwagura: Ongeraho switch kuri stack "wish-as-you-grow" udahinduye imiterere y'umuyoboro wose—ni byiza cyane mu kwagura urwego rwo kwinjira.
- Ihuriro rya LACP ridafite umugozi: Seriveri zifite NIC ebyiri zishobora guhuzwa na stack binyuze muri LACP, bigatuma STP idakenerwa.
Ibibi byo Gushyira Switch mu byiciro
- Ingaruka zo kugenzura indege imwe: Iyo swichi nkuru inaniwe (cyangwa insinga zose zishyirwamo zigacika), icyuma cyose gishobora kongera gutangira cyangwa kigacikamo kabiri—bigatuma umuyoboro wose uhagarara.
- Intera ntarengwa: Insinga zo gupakira zikunze kuba metero 1-3 (kugeza kuri metero 10 ntarengwa), bigatuma bidashoboka gushyiramo swichi ku makabati cyangwa hasi.
- Gufunga ibikoresho: Amaswichi agomba kuba ari ubwoko bumwe, umucuruzi, na verisiyo imwe ya firmware—gushyira hamwe ibintu bivanze ni akaga cyangwa ntibishyigikiwe.
- Kuvugurura bibabaza: Imiterere myinshi isaba kongera gutangira burundu kugira ngo firmware ivugururwe (ndetse no kuri ISSU, ibyago byo kudakora neza ni byinshi).
- Uburyo bwo kwaguka buke: Ingano z'ibice ziba zifite umugozi (ubusanzwe ni swichi 8-10), kandi imikorere iragabanuka birenze uwo mupaka.
Uburyo bwiza bwo gukoresha mu gusimbuza Switch Stacking
Guhuza Switch ni byiza cyane kuri:
- Uburyo bwo kugera ku makuru mu bigo by'ubucuruzi cyangwa mu bigo by'amakuru, aho ubucucike bw'ibyambu n'imicungire yoroshye ari byo by'ingenzi.
- Imiyoboro ifite swichi mu gipangu kimwe cyangwa mu kabati kamwe (nta ntera ihari).
- Ibigo bito n'ibiciriritse cyangwa ibigo biciriritse byifuza ko MLAG irushaho kuba ndende.
- Ahantu amakipe y'ikoranabuhanga ari mato kandi agomba kugabanya amafaranga akoreshwa mu gucunga.
3. MLAG (Itsinda ry’Imikoranire ya Chassis nyinshi): Kwizerwa cyane ku miyoboro y’ingenzi
MLAG ikora ite?
MLAG (izwi kandi nka vPC kuri Cisco Nexus, MC-LAG kuri Juniper) yemerera swichi ebyiri zigenga gukora nk'swichi imwe y'ubwenge ku bikoresho biri munsi y'umurongo (seriveri, swichi zo kwinjira). Ibikoresho biri munsi y'umurongo bihuza binyuze kuri LACP Port-Channel imwe, ikoresha imiyoboro yombi yo hejuru mu buryo bukora-gukuraho guhagarika STP. Ibice by'ingenzi bya MLAG birimo:
- Peer-Link: Ihuza ryihuse cyane (40/100G) hagati y’amahindura abiri ya MLAG kugira ngo ihuze imbonerahamwe za MAC, ARP entries, STP states, na configuration.
- Keepalive Link: Isano ritandukanye ryo kugenzura ubuzima bw'urungano no gukumira ibibazo byo gutandukana kw'ubwonko.
- Guhuza Indangamuntu ya Sisitemu: Ibikoresho byombi bisangiye Indangamuntu ya Sisitemu ya LACP na aderesi ya MAC isanzwe, bityo ibikoresho biri inyuma bibibona nk'ibikoresho bimwe.
Bitandukanye no gupanga (stacking), MLAG ikoresha uburyo bwo kugenzura bubiri (dual control planes)—buri switch ifite CPU yayo, memory, na OS—bityo iyo switch imwe inaniwe ntabwo ikuraho sisitemu yose.
Ibyiza bya MLAG
- Kwizerwa cyane: Uburyo bwo kugenzura bubiri butuma switch imwe ishobora kwangirika idahungabanya umuyoboro wose—failover ni milisegonda.
- Kuvugurura ku buryo bwigenga: Vugurura switch imwe imwe (ukoresheje ISSU/Graceful Restart) mu gihe indi igenzura urujya n'uruza rw'abantu—nta gihe cyo kuruhuka.
- Koroshya intera: Peer-Link ikoresha fibre isanzwe, yemerera swichi za MLAG gushyirwa ku kabati, hasi, cyangwa se ku bigo by'amakuru (kugeza kuri kilometero icumi).
- Ihendutse: Nta bikoresho byihariye byo gukusanya amakuru—ikoresha uburyo bwo guhindura amakuru buriho kuri Peer-Link na Keepalive.
- Ni nziza cyane ku miterere y’amababi y’umugongo: Ni nziza cyane ku bigo bitanga amakuru hakoreshejwe imiterere y’amababi y’umugongo, aho amababi ahuzwa kabiri na MLAG-enabled spine switches.
Ibibi bya MLAG
- Ingano ikomeye yo gushyiraho: Bisaba ko habaho imiterere ihamye hagati y’ama-switch abiri—itandukaniro iryo ari ryo ryose rishobora gutuma ports zifungwa.
- Gucunga inshuro ebyiri: Nubwo IP ikora kuri interineti ishobora koroshya uburyo bwo kuyigeraho, ugomba gukurikirana no kuyikoresha mu buryo butandukanye.
- Ibisabwa ku murongo wa interineti wa Peer-Link: Umurongo wa interineti wa Peer-Link ugomba kuba ufite ingano kugira ngo uhuze n'umurongo wose wa interineti ukurikira (byemewe ko bingana cyangwa birenga) kugira ngo hirindwe inzitizi.
- Ishyirwa mu bikorwa ry’umucuruzi ku giti cye: MLAG ikora neza cyane hamwe n’abagurisha bahuje (urugero, Cisco vPC, Huawei M-LAG)—ubufasha bw’abagurisha banyuranye ni buke.
Ingero nziza zo gukoresha kuri MLAG
MLAG ni yo mahitamo meza kuri:
- Ahantu hagenewe amakuru (ibigo cyangwa ububiko bw'amakuru) aho nta gihe cyo gukora kandi hizewe cyane ari ingenzi.
- Imiyoboro ifite swichi ku ma racks menshi, hasi, cyangwa ahantu (uburyo bworoshye bwo gukora intera).
- Imiterere y'inyubako z'umugongo n'imiyoboro minini y'ibigo.
- Imiryango ikora porogaramu z'ingenzi (urugero: serivisi z'imari, ubuvuzi) idashobora kwihanganira guhagarara kw'ibigo.
STP vs MLAG vs Stacking: Kugereranya hagati y'abantu
| Ibipimo ngenderwaho | STP (RSTP/MSTP) | Guhuza Switch | MLAG |
|---|---|---|---|
| Ikibuga cy'Igenzura | Ikwirakwizwa (kuri buri switch) | Imwe (isangiwe kuri stack) | Ibiri (igenga kuri buri switch) |
| Imikoreshereze ya Bandwidth | Hasi (amasano adahagije arafunze) | Amasano menshi (akora-akora) | Amasano menshi (akora-akora) |
| Igihe cyo Guhurirana | 1-6s (RSTP); 30-50s (STP ya kera) | 1-3ms (gukora amakosa mu buryo bwa master) | Milisegonda (gutsindwa kw'abakiriya) |
| Ingorane z'imicungire | Hasi | Hasi (igikoresho kimwe cyumvikana) | Hejuru (guhuza igenamiterere mu buryo buhamye) |
| Intera ntarengwa | Nta na kimwe (amasano asanzwe) | Ni bike cyane (1-10m) | Koroshya (ibirometero mirongo) |
| Ibisabwa ku bikoresho | Nta na kimwe (cyashyizwemo) | Icyitegererezo kimwe/umucuruzi + insinga zo gupakira | Umucuruzi umwe/icyitegererezo kimwe (cyanemejwe) |
| Ibyiza Kuri | SMBs, imiyoboro y'amateka, gukumira inzira | Uburyo bwo kwinjira, swichi za rack imwe, imicungire yoroshye | Ibigo by'amakuru, imiyoboro y'ingenzi, imiterere y'urusobe rw'amakuru |
Uburyo bwo guhitamo: Intambwe ku yindi y'ubuyobozi bw'ibyemezo?
Kugira ngo uhitemo igisubizo gikwiye cya Layer 2 redundancy, kurikiza izi ntambwe:
1. Suzuma ibyo ukeneye mu buryo bw'ubwirinzi: Niba nta gihe cyo gukora (urugero, ahantu hagenewe amakuru), MLAG ni yo mahitamo meza. Ku bijyanye no gusiba amakuru y'ibanze (urugero, SMBs), STP cyangwa Stacking irakora.
2. Tekereza aho switch ishyirwa: Niba switch ziri mu gipangu kimwe/mu kabati, gupakira ibintu mu buryo bworoshye. Iyo ziri ahantu hamwe, MLAG cyangwa STP ni byiza kurushaho.
3. Gusuzuma umutungo w’imicungire: Amatsinda mato y’ikoranabuhanga agomba gushyira imbere gushyira ibintu mu byiciro (Stacking) (imicungire yoroshye) cyangwa STP (ubuziranenge buke). Amatsinda manini ashobora guhangana n’ingorane za MLAG.
4. Reba imbogamizi ku ngengo y'imari: STP ni ubuntu (yubatswemo). Gushyiramo imigozi bisaba insinga zabugenewe. MLAG ikoresha imiyoboro isanzwe ariko ishobora gukenera imiyoboro yihuta cyane (40/100G) kuri Peer-Link.
5. Gahunda yo kwaguka: Ku miyoboro minini (ihindagurika ry'amajwi 10+), MLAG iraguka kurusha Stacking. STP ikora ku bipimo bito kugeza ku biciriritse ariko ipfusha ubusa bandwidth.
Ibyifuzo bya nyuma
- Hitamo STP (RSTP/MSTP) niba ufite ingengo y'imari nto, ibikoresho by'ubucuruzi bivanze, cyangwa umuyoboro wa kera—uyikoreshe nk'umuyoboro w'umutekano wo kwirinda.
- Hitamo Switch Stacking niba ukeneye imicungire yoroshye, swichi za rack imwe, na bandwidth yo hejuru ku byiciro byo kwinjira—bikwiriye SMBs na tiers zo kwinjira mu bigo.
- Hitamo MLAG niba ukeneye ko nta gihe cyo gukora, koroshya intera, no kwaguka—bikwiriye cyane ku bigo by’amakuru, imiterere y’inyubako, n’imiyoboro y’ingenzi cyane.
Rero, nta gisubizo "kimwe gikwiranye na byose" cya Layer 2 cyo gusimbuza amakuru—STP, MLAG, na Stacking buri kimwe ni excel mu bihe bitandukanye. STP ni amahitamo yizewe kandi ahendutse ku bikenewe by'ibanze; Stacking yoroshya imicungire y'ama switch aherereye ahantu hamwe; kandi MLAG itanga ukwizerwa no koroha cyane ku miyoboro y'ingenzi. Usuzumye ibisabwa kugira ngo wizere, aho switch ishyirwa, umutungo w'imicungire, n'ingengo y'imari, ushobora guhitamo igisubizo gikomeza umuyoboro wawe gukomera, gukora neza, no kwirinda ibizaba mu gihe kizaza.
Ukeneye ubufasha mu gushyira mu bikorwa ingamba zawe zo gusiba abakozi mu cyiciro cya 2? Hamagara impuguke zacu mu mikoranire kugira ngo ubone ubuyobozi bujyanye n'ibikorwaremezo byawe byihariye.
Igihe cyo kohereza: Gashyantare-26-2026
