A tsarin tsarin sadarwa na zamani, rashin daidaiton Layer 2 ba shi da wani tasiri wajen tabbatar da ci gaba da kasuwanci, rage lokacin aiki, da kuma guje wa guguwar watsa shirye-shirye da hanyoyin sadarwa ke haifarwa. Idan ana maganar aiwatar da rashin daidaiton Layer 2, fasahohi uku ne suka mamaye yanayin: Tsarin Tsarin Itace na Spanning (STP), Multi-Chassis Link Aggregation Group (MLAG), da Switch Stacking. Amma ta yaya za ku zaɓi wanda ya dace da hanyar sadarwar ku? Wannan jagorar ta raba kowace fasaha, ta kwatanta fa'idodi da rashin amfanin su, kuma ta ba da bayanai masu amfani don taimaka muku yanke shawara mai kyau - wanda aka tsara don injiniyoyin cibiyar sadarwa, masu gudanar da IT, da duk wanda aka ɗora wa alhakin gina ingantaccen tsarin Layer 2 mai girma.
Fahimtar Muhimmanci: Menene Rashin Tsarin Rukunin Mataki na 2?
Rashin aiki na Layer 2 yana nufin tsarin tsara hanyoyin sadarwa tare da hanyoyin haɗi, maɓallai, ko hanyoyi masu kama da juna don tabbatar da cewa idan wani ɓangare ya gaza, zirga-zirgar ababen hawa tana sake komawa zuwa madadin ta atomatik. Wannan yana kawar da maki ɗaya na gazawa (SPOFs) kuma yana ci gaba da aiki da aikace-aikacen mahimmanci - ko kuna gudanar da ƙaramin hanyar sadarwa ta ofis, babban harabar kasuwanci, ko cibiyar bayanai mai aiki mai girma. Manyan mafita guda uku - STP, MLAG, da Stacking - kowannensu yana da tsarin sake aiki daban-daban, tare da bambance-bambance na musamman a cikin aminci, amfani da bandwidth, rikitarwar gudanarwa, da farashi.
1. Tsarin Bishiyoyi Masu Yawa (STP): Tsarin Aiki na Gargajiya na Rashin Aiki
Ta yaya STP ke aiki?
An ƙirƙiro STP (IEEE 802.1D) a shekarar 1985 ta Radia Perlman, kuma ita ce fasahar sake amfani da Layer 2 mafi tsufa kuma mafi ƙarfi. Babban manufarta ita ce hana madaukai na hanyar sadarwa ta hanyar gano da toshe hanyoyin haɗin da ba su da yawa, ƙirƙirar yanayin "itace" guda ɗaya mai ma'ana. STP yana amfani da Rukunin Bayanan Bridge Protocol (BPDUs) don zaɓar gadar tushe (maɓallin da ke da mafi ƙarancin ID na Bridge), ƙididdige hanya mafi guntu zuwa ga tushen, da kuma toshe hanyoyin haɗin da ba su da mahimmanci don kawar da madaukai.
A tsawon lokaci, STP ta bunƙasa don magance ƙa'idodinta na asali: RSTP (Rapid STP, IEEE 802.1w) yana rage lokacin haɗuwa daga daƙiƙa 30-50 zuwa daƙiƙa 1-6 ta hanyar sauƙaƙe yanayin tashar jiragen ruwa da gabatar da musabaha/Shawarwari/Yarjejeniya (P/A). MSTP (Multiple Spanning Tree Protocol, IEEE 802.1s) yana ƙara tallafi ga VLANs da yawa, yana bawa ƙungiyoyin VLAN daban-daban damar amfani da hanyoyin turawa daban-daban da kuma ba da damar daidaita nauyin matakin VLAN—wanke matsalar "dukkan VLANs suna raba hanya ɗaya" ta STP ta gargajiya.
Ribobi na STP
- Yana da jituwa sosai: Yana goyan bayan duk maɓallan TAP na zamani, ba tare da la'akari da mai siyarwa ba (Mylinking).
- Ƙaramin farashi: Ba a buƙatar ƙarin kayan aiki ko lasisi - an kunna ta atomatik akan yawancin maɓallan.
- Mai sauƙin aiwatarwa: Tsarin asali ba shi da yawa, wanda hakan ya sa ya dace da ƙananan hanyoyin sadarwa (SMBs) waɗanda ke da ƙarancin albarkatun IT.
- Ingantaccen aminci: Fasaha mai tasowa wacce ke da shekaru da yawa na amfani da ita a zahiri, tana aiki a matsayin "tsarin tsaro" don rigakafin madauki.
Fursunoni na STP
- Barnar bandwidth: Ana toshe hanyoyin haɗin yanar gizo masu yawa (aƙalla 50% a cikin yanayin haɗin yanar gizo biyu), don haka ba kwa amfani da duk bandwidth ɗin da ake da su.
- Haɗuwa a hankali (STP na gargajiya): STP na gargajiya na iya ɗaukar daƙiƙa 30-50 don murmurewa daga gazawar hanyar haɗi - yana da mahimmanci ga aikace-aikace kamar ma'amaloli na kuɗi ko taron bidiyo.
- Daidaita nauyi mai iyaka: Classic STP yana tallafawa hanya ɗaya tilo mai aiki; MSTP yana inganta wannan amma yana ƙara rikitarwar tsari.
- Diamita na hanyar sadarwa: STP ya takaita ga hops 7, wanda zai iya takaita manyan ƙirar hanyar sadarwa.
Mafi kyawun Sharuɗɗan Amfani don STP
STP (ko RSTP/MSTP) ya dace da:
- Ƙananan kasuwanci zuwa matsakaici (SMBs) waɗanda ke da buƙatun aiki na yau da kullun da kuma ƙarancin kasafin kuɗi na IT.
- Cibiyoyin sadarwa na gado inda haɓakawa zuwa MLAG ko Stacking ba zai yiwu ba.
- A matsayin "layin kariya na ƙarshe" don hana madaukai a cikin hanyoyin sadarwa waɗanda suka riga suka yi amfani da MLAG ko Stacking.
- Cibiyoyin sadarwa tare da kayan aikin masu siyarwa iri-iri, inda jituwa shine babban fifiko.
2. Sauya Tsarin Canji: Sauƙaƙan Gudanarwa tare da Ma'ana Mai Kyau
Ta yaya Switch Stacking ke aiki?
Sauyawar Maɓalli (misali, Mylinking TAP Switch) tana haɗa maɓallai iri ɗaya guda 2-8 (ko fiye) ta amfani da tashoshin tarawa da kebul na musamman, suna ƙirƙirar maɓalli guda ɗaya mai ma'ana. Wannan maɓalli mai kama da na'ura yana raba IP guda ɗaya na gudanarwa, fayil ɗin tsari, jirgin sarrafawa, teburin adireshin MAC, da misalin STP. Ana zaɓar maɓalli na maɓalli (bisa ga fifiko da adireshin MAC) don sarrafa maɓalli, tare da maɓallan madadin a shirye don ɗaukar iko idan maɓalli ya gaza. Ana tura zirga-zirga a fadin maɓalli ta hanyar babban jirgin baya, kuma ƙungiyoyin Haɗin Haɗin (LAGs) masu haɗin gwiwa suna aiki a cikin yanayin aiki-mai aiki ba tare da toshe STP ba.
Ribobi na Canja wurin Sauyawa
- Sauƙaƙan Gudanarwa: Sarrafa maɓallan zahiri da yawa azaman na'ura mai ma'ana ɗaya—IP ɗaya, tsari ɗaya, da kuma wurin sa ido ɗaya.
- Amfani da bandwidth mai yawa: Hanyoyin haɗi masu yawa suna aiki (babu toshewa), kuma jiragen baya masu tarin yawa suna ba da bandwidth mai tarin yawa.
- Failover mai sauri: Failover na master-backup yana ɗaukar milise seconds 1-3, yana tabbatar da cewa lokacin failure bai yi yawa ba.
- Ƙarfin Ma'auni: Ƙara maɓallan zuwa tarin "biya-yayin da-ka-girma" ba tare da sake saita dukkan hanyar sadarwa ba - ya dace da faɗaɗa matakan shiga.
- Haɗin LACP mara matsala: Sabar da ke da NIC guda biyu za su iya haɗawa zuwa tarin ta hanyar LACP, wanda hakan zai kawar da buƙatar STP.
Fursunoni na Canja Tari
- Haɗarin jirgin sama guda ɗaya: Idan babban makullin ya gaza (ko duk kebul ɗin tara bayanai sun karye), dukkan tarin na iya sake farawa ko ya rabu—wanda ke haifar da katsewar hanyar sadarwa gaba ɗaya.
- Iyakance nisa: Kebul ɗin da ke tara igiyoyi yawanci mita 1-3 ne (har zuwa mita 10 mafi girma), wanda hakan ke sa ba zai yiwu a tara maɓallan a kan kabad ko benaye ba.
- Makullin kayan aiki: Dole ne makullan su kasance iri ɗaya, samfurin, mai siyarwa, da sigar firmware - haɗakar haɗuwa tana da haɗari ko kuma ba a tallafawa ta ba.
- Haɓakawa masu raɗaɗi: Yawancin tari suna buƙatar cikakken sake kunnawa don sabunta firmware (ko da tare da ISSU, haɗarin rashin aiki ya fi girma).
- Iyakance girman sigina: Girman sigina yana da iyaka (yawanci maɓallai 8-10), kuma aikin yana raguwa fiye da wannan iyaka.
Mafi kyawun Layukan Amfani don Tattarawa na Switch
Sauyawar Sauyawa ta dace da:
- Samun damar shiga cikin ɗakunan kasuwanci ko cibiyoyin bayanai, inda yawan tashoshin jiragen ruwa da gudanarwa mai sauƙi sune manyan abubuwan da suka fi muhimmanci.
- Cibiyoyin sadarwa masu maɓalli a cikin rack ko kabad ɗaya (babu ƙuntatawa ta nisa).
- Ƙananan masana'antu ko ƙananan kamfanoni waɗanda ke son rage yawan aiki ba tare da sarkakiyar MLAG ba.
- Muhalli inda ƙungiyoyin IT ƙanana ne kuma suna buƙatar rage yawan kuɗaɗen gudanarwa.
3. MLAG (Ƙungiyar Haɗin Multi-Chassis Link): Babban Aminci ga Cibiyoyin Sadarwa Masu Muhimmanci
Ta yaya MLAG ke aiki?
MLAG (wanda kuma aka sani da vPC ga Cisco Nexus, MC-LAG ga Juniper) yana ba da damar sauya maɓallai guda biyu masu zaman kansu su yi aiki a matsayin maɓalli ɗaya mai ma'ana ga na'urorin da ke ƙasa (sabobin, maɓallan shiga). Na'urorin da ke ƙasa suna haɗuwa ta hanyar tashar tashar LACP guda ɗaya, wacce ke amfani da hanyoyin haɗin sama biyu a cikin yanayin aiki mai aiki - yana kawar da toshewar STP. Manyan abubuwan da ke cikin MLAG sun haɗa da:
- Peer-Link: Hanya mai sauri (40/100G) tsakanin maɓallan MLAG guda biyu don daidaita teburin MAC, shigarwar ARP, yanayin STP, da tsari.
- Keepalive Link: Hanya ta daban don sa ido kan lafiyar takwarorinsu da kuma hana aukuwar rikice-rikice a kwakwalwa.
- Daidaita ID na Tsarin: Duk maɓallan suna raba ID na Tsarin LACP iri ɗaya da adireshin MAC na kama-da-wane, don haka na'urorin da ke ƙasa suna ganin su a matsayin maɓalli ɗaya.
Ba kamar stacking ba, MLAG yana amfani da jiragen sarrafawa guda biyu—kowane maɓalli yana da nasa CPU, ƙwaƙwalwa, da OS—don haka gazawar maɓalli ɗaya ba ya lalata tsarin gaba ɗaya.
Ribobi na MLAG
- Ingantaccen aminci: Tsarin sarrafawa guda biyu yana nufin cewa sauyawa ɗaya zai iya lalacewa ba tare da ya lalata dukkan hanyar sadarwar ba - failover shine milise seconds.
- Haɓakawa masu zaman kansu: Sabunta maɓalli ɗaya a lokaci guda (tare da ISSU/Graceful Restart) yayin da ɗayan ke kula da zirga-zirga - babu lokacin aiki.
- Sassauƙan Nisa: Peer-Link yana amfani da zare na yau da kullun, yana ba da damar sanya maɓallan MLAG a kan kabad, benaye, ko ma cibiyoyin bayanai (har zuwa goma sha biyar kilomita).
- Mai sauƙin amfani: Babu kayan aiki na musamman da za a iya tara kayan aiki—yana amfani da tashoshin maɓallan da ke akwai don Peer-Link da Keepalive.
- Ya dace da tsarin gine-ginen ganyen baya: Ya dace da cibiyoyin bayanai ta amfani da ƙirar ganye-kashin baya, inda maɓallan ganye ke haɗawa da maɓallan baya masu aiki da MLAG.
Fursunoni na MLAG
- Babban sarkakiyar tsari: Yana buƙatar tsauraran daidaito tsakanin maɓallan guda biyu—duk wani rashin daidaito na iya sa tashoshin jiragen ruwa su rufe.
- Gudanarwa guda biyu: Duk da cewa IP na kama-da-wane na iya sauƙaƙa samun dama, har yanzu kuna buƙatar sa ido da kuma kula da maɓallan guda biyu daban-daban.
- Bukatar bandwidth na Peer-Link: Dole ne a auna girman Peer-Link don ya iya sarrafa jimlar bandwidth na ƙasa (wanda aka ba da shawarar ya yi daidai ko ya wuce) don guje wa matsaloli.
- Aiwatarwa ta musamman ga mai siyarwa: MLAG yana aiki mafi kyau tare da makullan mai siyarwa iri ɗaya (misali, Cisco vPC, Huawei M-LAG) - tallafin mai siyarwa tsakanin masu siyarwa yana da iyaka.
Mafi kyawun Sharuɗɗan Amfani don MLAG
MLAG shine babban zaɓi ga:
- Cibiyoyin bayanai (kamfani ko gajimare) inda babu lokacin aiki da kuma babban aminci suke da mahimmanci.
- Cibiyoyin sadarwa masu maɓalli a kan raka'o'i da yawa, benaye, ko wurare (sassaucin nisa).
- Tsarin gine-ginen ganyen baya da manyan hanyoyin sadarwa na kasuwanci.
- Ƙungiyoyin da ke gudanar da aikace-aikacen da suka shafi manufa (misali, ayyukan kuɗi, kiwon lafiya) waɗanda ba za su iya jure wa katsewar aiki ba.
STP vs MLAG vs Stacking: Kwatanta Kai-da-Kai
| Sharuɗɗa | STP (RSTP/MSTP) | Canja wurin Tarin Canji | MLAG |
|---|---|---|---|
| Jirgin Saman Gudanarwa | An rarraba (kowane maɓalli) | Guda ɗaya (an raba shi a cikin tarin) | Biyu (mai zaman kansa ga kowane maɓalli) |
| Amfani da Bandwidth | Ƙasa (an toshe hanyoyin haɗi da yawa) | Babban (haɗin haɗin aiki-mai aiki) | Babban (haɗin haɗin aiki-mai aiki) |
| Lokacin Haɗuwa | 1-6s (RSTP); 30-50s (STP na gargajiya) | 1-3ms (babban failover) | Daƙiƙa-daƙiƙa (failure na takwarorinsu) |
| Rikicewar Gudanarwa | Ƙasa | Ƙarami (na'urar ma'ana ɗaya) | Babban (tsarin daidaitawa mai tsauri) |
| Iyakance Nisa | Babu (haɗin da aka saba) | Iyaka sosai (mita 1-10) | Mai sassauƙa (kilomita goma) |
| Bukatun Hardware | Babu (a ciki) | Samfuri/mai siyarwa iri ɗaya + kebul na tara | Samfuri/mai siyarwa iri ɗaya (an ba da shawarar) |
| Mafi Kyau Ga | SMBs, hanyoyin sadarwa na gado, rigakafin madauki | Matakan shiga, maɓallan rack iri ɗaya, gudanarwa mai sauƙi | Cibiyoyin bayanai, hanyoyin sadarwa masu mahimmanci, tsarin gine-ginen ganyen baya |
Yadda Ake Zaɓa: Jagorar Shawara Mataki-mataki?
Don zaɓar mafita mai kyau na sake zagayowar Layer 2, bi waɗannan matakan:
1. Kimanta buƙatun aminci: Idan babu lokacin aiki mai mahimmanci (misali, cibiyoyin bayanai), MLAG shine mafi kyawun zaɓi. Don aikin sake aiki na asali (misali, SMBs), STP ko Stacking suna aiki.
2. Yi la'akari da sanya maɓallan wuta: Idan maɓallan wuta suna cikin rack/closet iri ɗaya, tara maɓallan wuta yana da inganci. Idan suna a wurare daban-daban, MLAG ko STP sun fi kyau.
3. Kimanta albarkatun gudanarwa: Ƙananan ƙungiyoyin IT ya kamata su ba da fifiko ga Stacking (sauƙaƙen gudanarwa) ko STP (ƙarancin kulawa). Manyan ƙungiyoyi za su iya magance sarkakiyar MLAG.
4. Duba ƙa'idodin kasafin kuɗi: STP kyauta ne (wanda aka gina a ciki). Tarawa yana buƙatar kebul na musamman. MLAG yana amfani da tashoshin jiragen ruwa na yanzu amma yana iya buƙatar hanyoyin haɗin sauri mafi girma (40/100G) don Peer-Link.
5. Tsarin sauye-sauye: Ga manyan hanyoyin sadarwa (maɓallan 10+), MLAG ya fi girma fiye da Stacking. STP yana aiki ga ƙananan sikelin zuwa matsakaici amma yana ɓata bandwidth.
Shawarwari na Ƙarshe
- Zaɓi STP (RSTP/MSTP) idan kuna da ƙaramin kasafin kuɗi, kayan aikin masu siyarwa iri-iri, ko hanyar sadarwa ta gado - yi amfani da ita azaman hanyar kariya ta hana madauki.
- Zaɓi Switch Stacking idan kuna buƙatar sarrafawa mai sauƙi, maɓallan rack iri ɗaya, da babban bandwidth don matakan shiga - ya dace da ƙananan kamfanoni da matakan shiga kasuwanci.
- Zaɓi MLAG idan kuna buƙatar rashin lokacin aiki, sassaucin nisa, da kuma iya daidaitawa - cikakke ne ga cibiyoyin bayanai, gine-ginen ganyen baya, da hanyoyin sadarwa masu mahimmanci.
Don haka, babu mafita ta "girma ɗaya-ya dace da kowa" ta Layer 2—STP, MLAG, da Stacking kowannensu ya yi fice a yanayi daban-daban. STP ita ce zaɓi mai aminci, mai araha ga buƙatu na asali; Stacking yana sauƙaƙa gudanarwa don maɓallan wuri ɗaya; kuma MLAG yana ba da mafi girman aminci da sassauci ga cibiyoyin sadarwa masu mahimmanci. Ta hanyar tantance buƙatun aminci, sanya maɓallan, albarkatun gudanarwa, da kasafin kuɗi, zaku iya zaɓar mafita wanda ke kiyaye hanyar sadarwar ku juriya, inganci, da kuma kariya daga nan gaba.
Kuna buƙatar taimako wajen aiwatar da dabarun ku na sake amfani da Layer 2? Tuntuɓi ƙwararrun hanyoyin sadarwar mu don samun jagora na musamman don takamaiman kayan aikin ku.
Lokacin Saƙo: Fabrairu-26-2026
