I-LANCOM ye-Redundancy Concepts ye-Hierarchical Switch Networks

Ulwazi lweMveliso

Iinkcukacha:

• Igama lemveliso: I-LANCOM Techpaper - Iikhonsepthi zokuRedundancy kuthungelwano lwe-hierarchical switch
• IiProtocols zigqunyiwe: VPC, Ukupakisha, STP
• Ugxininiso oluphambili: Ukungafuneki kunye nokufumaneka okuphezulu kwinethiwekhi yokutshintsha

Imiyalelo yokusetyenziswa kwemveliso

Isitishi seZibuko esibonakalayo (VPC):

I-VPC igxininise ekufuneni umsebenzi womzimba kunye nokulinganisa umthwalo ukuqinisekisa ukufumaneka okuphezulu. Inika ubunzima obuphakathi kuqwalaselo kunye neemfuno eziphezulu zehardware kunye neendleko.

Ingqokelela:

Ukupakishwa kubonelela phantse ukusebenza kweplagi-kunye-umdlalo wokuphinda-phinda kwaye kuphawulwa ngobunzima obuphantsi kuqwalaselo. Ibonelela ngeemfuno zehardware eziphakathi kunye neendleko.

Umthetho weMithi oNabileyo (STP)

I-STP ibonelela ngesisombululo esinengqiqo ukuphepha ukungaphumeleli kwenethiwekhi ngenxa ye-loops kwaye iqinisekisa ukubuyiswa ngokukhawuleza. Inobunzima obuphezulu kuqwalaselo kodwa inika iimfuno eziphantsi zehardware kunye neendleko.

FAQ

• Umbuzo: Yeyiphi iprothokholi endiyikhethele inethiwekhi yam?
  • A: Ukhetho lweprotocol luxhomekeke kwiimfuno zakho zenethiwekhi. I-VPC ilungele ukufumaneka okuphezulu kunye nobunzima obuphakathi ngelixa ukupakishwa kunika ukukhululeka kokusetyenziswa kunye nobunzima obuphantsi. I-STP yonga iindleko kodwa inobumbeko olunzima ngakumbi.
• Umbuzo: Ngaba i-STP ingakwazi ukufikelela kwi-zero downtime?
  • A: I-STP inokufikelela kwi-zero ye-downtime kwimodi esebenzayo / ye-passive phakathi kwendawo yokufikelela kwi-switch switch kunye nezixhobo zokugqibela, kodwa kuyacetyiswa ukuba ugweme ukusebenza kwe-STP ngenxa yokuphindaphinda okusebenzayo / okungahambiyo.

Iingqikelelo zokungafuneki kuthungelwano lokutshintsha ngokwemigangatho

yena umba ukufumaneka eliphezulu yenye yezona nkalo zibalulekileyo xa ucwangcisa unxibelelwano oluthembekileyo switch. Iintsilelo ngenxa yolungiselelo olugwenxa kudla ngokukhokelela ekubeni unxibelelwano luphela luhle. Iziphumo zibandakanya iindleko ezinkulu zokulandela kunye nokuncipha kwexesha lemveliso. Ngokucwangciswa kakuhle, ukudityaniswa okungafunekiyo kokutshintsha kuyo yonke inethiwekhi kunciphisa loo mingcipheko yokungaphumeleli kwaye kwandisa ukufumaneka kothungelwano.

Eli phepha likwazisa ngezona prothokholi zibalulekileyo zokungafuneki kuthungelwano kwaye likunika exampIsininzi sendlela efumaneka kakhulu imigangatho emithathu okanye inethiwekhi yamanqanaba amabini inokuvela.

Eli phepha liyinxalenye yoluhlu oluthi "Switching Solutions".

Cofa kwii-icon ukufumana ngakumbi malunga nolwazi olukhoyo kwiLANCOM:

• Iziseko
  • Ulwakhiwo olunamanqanaba amabini kunye namanqanaba amathathu
• Iziseko
  • Tshintsha ukhuseleko nge-IEEE 802.1X
• Isikhokelo soyilo
  • Iingqikelelo zokungafuneki kuthungelwano lokutshintsha

• Isikhokelo sokuseta
  • Uqwalaselo lweVPC kunye nokutshintsha kweLANCOM

• Isikhokelo sokuseta
  • Ukupakishwa ngeeswitshi zeLANCOM
    
• Isikhokelo sokuseta
  • Iinketho zoqwalaselo LANCOM XS-6128QF

Iikhonsepthi ezintathu zokuphinda-phinda i-VPC, ukupakisha, kunye ne-STP

Ngokudibanisa utshintsho kwiitshintshi ezimbini ezahlukeneyo kwi-aggregation / distribution layer okanye i-core layer ngaphezu kwayo, ukusetyenziswa kwe-Link Aggregation Groups (LAG) kubangela ukufumaneka okuphezulu kakhulu (HA) kunye nokusebenza ngokungaphazamiseki kwenethiwekhi. Into ebalulekileyo apha kukusetyenziswa kweendlela zokuthintela i-loop. Izisombululo ezahlukeneyo zokuphindaphinda ziyafumaneka kwinethiwekhi yokutshintsha ezimbini, kubandakanywa iProtocol yeSpanning Tree (STP), engasebenzi kakuhle, kunye neendlela ezingcono ezifana neChannel Port Channel (VPC), okanye ukupakisha.

Umahluko phakathi kweeprothokholi ezintathu ze-VPC, ukupakisha, kunye ne-STP kubandakanya ubunzima bobumbeko, ixesha lokuphumla xa uqalisa kwakhona ukutshintsha, kunye neendleko zokutshintsha okuyimfuneko.

Isitishi seZibuko esibonakalayo (VPC)

I-VPC yeyosapho lwe-Multi-chassis Etherchannel [MCEC] kwaye ke yaziwa ngokuba yi-MC-LAG (iQela le-Multi-Chassis Link Aggregation). Ngenxa yeemfuno eziphezulu ze-hardware, yeyona nto ixabisa kakhulu kwizisombululo ezintathu zokungafuneki kwaye ngoko idla ngokusetyenziswa kwiziseko zonxibelelwano ezinkulu. Ukuphucula ukunyamezela ukungaphumeleli ngokuphindaphinda, le teknoloji ye-virtualization yenza ukuba iiswitshi ezimbini ezidibeneyo zibonakale njengekhonkco enye. I-VPC ineempawu ezilandelayo:

• Ukungafuneki kunye nokulinganisa umthwalo: Ukusebenzisa i-peer link yabo, utshintsho kwiqela le-VPC eliqhelekileyo litshintshisa rhoqo ulwazi olubalulekileyo malunga nenethiwekhi, kuquka iitafile ze-MAC. Umtshintshi ngamnye wontanga wenza isiqingatha somthamo wedatha ukusuka kwinqanaba lokufikelela (iteknoloji esebenzayo / esebenzayo). Ngokuchaseneyo nokupakisha, zihlala ziyimeko ezizimeleyo kwaye ngamazibuko aqhagamshelweyo kuphela abonisa ukuphindana kwakhona.
• I-100% yokuphumla ngokudibana ngokukhawuleza: Kwimeko yokusilela kwesixhobo okanye utshintsho kwinethiwekhi, iVPC iphinda ibale kwakhona iindlela zenethiwekhi. Oku kuphelisa inqaku elinye lokungaphumeleli, okubangela ukubuyiswa kwenkonzo ngokukhawuleza. Esinye isixhobo kwiqela le-VPC siphatha yonke i-traffic kwaye igcina inethiwekhi isebenza. Oku akukhathaliseki nokuba ukusilela kwesixhobo kubangelwe sisiphene okanye ukuvalwa ngabom, okunje ngexesha lohlaziyo lwe-firmware (uPhuculo lweSoftware ekwiNkonzo, ISSU). Oku kufezekisa i-100% yokuphumla kwenethiwekhi ukusuka kwingundoqo ukuya kwizixhobo zokugqibela.
• Ulawulo oluzimeleyo: Ngokombono wesixhobo sesithathu, ikhonkco lontanga lenza ukuba utshintsho lubonakale njengendawo yokufikelela kwi-logical-link okanye i-2 node. Isixhobo sesithathu sinokutshintsha, iseva, okanye esinye isixhobo sothungelwano sofikelelo olusisiseko esixhasa ukudityaniswa kwekhonkco. Njengoko kukhankanyiwe ngasentla, iiswitshi zoontanga zihlala zilawulwa ngokuzimeleyo izixhobo ezinokuphinda ziqaliswe okanye zihlaziywe ngabanye.
• Ukunyuswa kwe-bandwidth: Ukudibanisa ikhonkco loontanga (elisebenzayo / elisebenzayo) kwandisa i-bandwidth kunye nomthamo we-throughput phakathi kwezixhobo.
• Itopology yenethiwekhi elula: Ngenxa VPC yenza LAG phakathi umaleko womnatha, kunciphisa imfuno STP, esetyenziswa kuthungelwano lwemveli L2 ukuphepha loops.
• Inkxaso yezixhobo ezingasebenziyo zeVPC: I-VPC yenza izixhobo zokugqibela okanye amacandelo enethiwekhi angeyiyo i-VPC-ekwaziyo ukuqhagamshela kwindawo yeVPC, ngaloo ndlela inyusa ukuhambelana kwenethiwekhi kunye nokuguquguquka.
• Izixhobo zokutshintsha ezikumgangatho ophezulu: I-VPC ibeka iimfuno eziphezulu kwi-hardware yokutshintsha, ekufuneka ixhase iprotocol yeVPC. Oku kunokunciphisa ukukhethwa kwezixhobo, ngokukodwa kwinqanaba lokufikelela, kwaye kunokuba yindleko.

Ukupakisha

Isitaki liqela lokutshintsha elisebenza ngokwasemzimbeni njengesixhobo esinye. Zonke izixhobo ezikwi-stack kufuneka zibe ne-stacking interfaces ezifanayo (iizibuko) kwaye zixhotyiswe ngenguqulo ye-firmware efanayo. Ngokufana ne-chassis okanye inkqubo ye-blade, izibuko zokupakisha zibamba zonke iinkcukacha zedatha kwi-hardware kunye nemigaqo elungiselelwe le njongo.

Itekhnoloji yokupakisha inokushwankathelwa ngolu hlobo lulandelayo:

Phantse iplug-&-play uqwalaselo

• Uluhlu-2 ukwenza lula: Ukupakisha kunokucingelwa njengomqolo wokutshintsha komntu ngamnye oqhagamshelwe ngeentambo ezingaqatshelwanga njengodibaniso lwenkqubo emiselweyo yomaleko-2. Oku kuvumela itrafikhi yothungelwano ukuba idluliselwe kuqhagamshelo oluninzi ngaxeshanye, ukuze kwandiswe ugqithiso.
• Akukho ndlela-3 efunekayo: Usasazo olukrelekrele lomjelo wedatha ngaphakathi kwipaki ayifuni umaleko-3 womzila ngenxa yokuba iiprothokholi zangaphakathi zokupakisha ziphatha udibaniso njengoko kuchaziwe ngasentla.
• I-failover ekhawulezayo kwaye iphantse yaphazamiseka ekugqithiseni: Ndiyabulela ukufumanisa ngokukhawuleza kunye nokudibanisa iteknoloji yokubuyisela, uxhulumaniso lwe-stack ludluliselwa kwezinye iiswitshi xa kwenzeka ukungaphumeleli ngokusebenzisa "i-hitless failover", okt ngaphandle kokulahleka kwedatha.
• Akukho phuculo lwesoftware ekwinkonzo: I-disadvantage kunye ne-stacking kukuba iiswitshi ezipakishweyo kufuneka zihambe ngaphandle kweintanethi ngexesha lohlaziyo lwe-firmware, oko kukuthi i-100% ixesha lokuphumla aliqinisekiswanga ngexesha lohlaziyo lwesofthiwe okanye ukuqaliswa kwakhona. Nangona kunjalo, olu khetho lunokuthathwa njengenye indlela kwiVPC xa iifestile zolondolozo zisetyenziswa. Ngexesha lokusebenza, umsebenzi osebenzayo / osebenzayo ufezekisa ubuninzi bedatha yokugqithisa phakathi kwe-core kunye ne-end-device layers.

Iprothokholi yomthi othululwayo (STP)

Umahluko kwezobuchwephesha phakathi kwemigangatho yangoku yomthi we-MSTP (Multi-STP, IEEE 802.1s) kunye ne-RSTP (RapidSTP, IEEE 802.1w) ayixoxwa apha. Endaweni yoko sibhekisa kuncwadi olufanelekileyo. Ngelixa i-VPC kunye ne-stacking igxininise ekunciphiseni umzimba kunye nokulinganisa umthwalo, i-STP ibonelela ngesisombululo esinengqiqo ukuphepha ukungaphumeleli kwenethiwekhi ngenxa ye-loops kunye nokuqinisekisa ukubuyiswa ngokukhawuleza.

Kwiiprothokholi ezintathu ezithiwe thaca apha, i-STP inoqwalaselo olunzima kakhulu. Nangona i-STP inokufikelela kwi-zero ye-downtime kwimodi esebenzayo / e-passive phakathi kwendawo yokufikelela-yokutshintsha kunye nezixhobo zokugqibela, ukusebenza kwe-STP kufuneka kugwenywe ngenxa yokuphindaphinda okusebenzayo / okungahambiyo. Nangona kunjalo, i-STP ibonelela nge-advantagkwezinye iimeko:

• Apho izithintelo ezinxulumene nolwakhiwo zinciphisa inani loqhagamshelo olunokwenzeka, i-STP yeyona ndlela ilungileyo. Oku kunciphisa umngcipheko wokwenziwa kweelophu, ngakumbi kwimowudi yokufikelela kumxhasi.
• Ngeemfuno zayo ze-hardware ezithobekileyo, i-protocol inokuxhaswa nokuba yi-entry-level switches, eyenza i-STP ibe yisisombululo esineendleko eziphezulu.

Iiprothokholi ezixhasayo i-LACP, i-VRRP, i-DHCP relay, kunye nomzila we-L3

Ukongeza kwiiprothokholi ezintathu esele zikhankanyiwe, ezimisela ngokubonakalayo ingqikelelo iyonke yenethiwekhi yokutshintsha, ezinye iiprotocol zibalulekile kule nkcazo yemeko elandelayo.

IQela lokuHlanganisa iQela (LAG) kunye neProtocol yoLawulo loQhagamshelwano (LACP)

Itekhnoloji yokuphumeza ukuhlanganiswa kwekhonkco kunye nokulinganisa umthwalo kubizwa ngokuba yi-LAG (IQela lokuHlanganisa iQela). I-LAG idibanisa inani loqhagamshelo olubonakalayo phakathi kwezixhobo zothungelwano zibe luqhagamshelwano olusengqiqweni.

I-LACP sisishunqulelo se-“Link Aggregation Control Protocol”. Njengenxalenye yomgangatho wehlabathi we-IEEE 802.1AX (i-Link Aggregation), i-LACP yiprothokholi yoqwalaselo oluzenzekelayo kunye nokugcinwa kwamaqela okudibanisa ikhonkco. I-LACP isebenzisa i-LACPDUs (iipakethi zedatha ye-LACP, umgaqo-sicelo-impendulo) njengendlela yothethathethwano oluzenzekelayo phakathi kwababini okanye, xa usebenzisa i-VPC okanye ukupakisha, izixhobo ezininzi zenethiwekhi, ukwenzela ukuba ikhonkco elihlanganisiweyo likwazi ukuqulunqwa ngokuzenzekelayo kwaye liqalise ngokuhambelana noqwalaselo lwayo. I-LACP nayo inoxanduva lokugcina imeko yekhonkco kunye nokutshintshana rhoqo ngolwazi malunga neepakethi zedatha. Ngoko ke isabela ngokuguquguqukayo kutshintsho kuthungelwano ngaphandle kwemfuneko yoqwalaselo ngokutsha.

I-LANCOM Techpaper - Iikhonsepthi zokuRedundancy kuthungelwano lwe-hierarchical switch
isebenzisa enye yodibaniso lwenyama emibini, kunye nolunye oluhlala lusetyenziselwa ukusekwa koqhagamshelwano.

IProtokholi yeNdlela eSetyenziswayo yokuReda (VRRP)

I-VRRP yi-standardized layer-3 network protocol esebenzisa i-redundancy kunye nokulinganisa umthwalo ukubonelela ulwabiwo oluzenzekelayo kunye ne-failover eguquguqukayo ukugcina ii-routers zikhoyo, okanye kule meko iiswitshi ezixhasa umzila. Oku kuqinisekisa ukufumaneka kwenethiwekhi, ngakumbi kwiinkonzo ezibaluleke kakhulu zokhuseleko, ngotshintsho olungenamthungo kwisixhobo sokugcina. Kuthungelwano olukhulu kakhulu (campisebenzisa kunye namachweba angaphezu kwe-10,000), ingcamango yomzila efunekayo kwi-maleko ye-3 nayo ingenziwa lula, njengoko izixhobo ezibini kwi-VRRP zinokuthi zenziwe njengesango elilodwa elingagqibekanga.

Ugqithiso lwe-DHCP

Ekubeni amanethiwekhi amabini okanye amathathu-tier ahlala ane-server ye-DHCP eyahlukileyo kwi-hardware yokusebenza ephezulu, kubalulekile ukutshintshwa kwi-aggregation / distribution and access layers to configured with agent DHCP relay. Oku kudlulisela phambili izicelo ze-DHCP kwiseva ye-DHCP ephakathi kwaye inqanda iingxabano zedilesi ye-IP.

Uluhlu-3 umzila

Imisebenzi yomzila ibalulekile ekuphumezeni ukhuseleko kunye neenketho zolawulo lofikelelo, ukukhula okuguquguqukayo kothungelwano kunye nokuzinza okulungileyo (ukudlulisela phambili vs. izikhukhula) ngokusebenzisa ingqiqo kwaye ngaphezu kwakho konke ukwahlula okusebenzayo kwee-subnets. Ukuqinisekisa ukuba umtshintshi ngamnye uyazi ukuba yeyiphi i-router enokusetyenziswa, itafile yomzila yenziwe esebenza "njengesiseko sedatha yedilesi" esebenzayo ngamaxesha onke. I-Dynamic routing iqinisekisa ukuba zonke "ii-router", okt layer-3 i-switch switches (L3), inokunxibelelana enye kwenye kwaye yakhe le tafile yendlela ngokuzimeleyo. Oku kuthetha ukuba indlela yedatha yedatha ngaphakathi kwenethiwekhi ihlala ibekwa ngokuguquguqukayo, eqinisekisa ukusebenza kakuhle kwenethiwekhi. Iindlela zomzila eziqhelekileyo zi-OSPFv2/v3 kunye ne-BGP4, nangona eyokuqala isetyenziswa ngokubanzi kuphela kuthungelwano lwangaphakathi.

Example mizekelo yothungelwano olungafunekiyo lokutshintsha

Ngoku sele siqhelene neeprothokholi kunye nomsebenzi wazo ongundoqo, ngoku siqhubela phambili kwisicelo sazo kwi-example scenarios kunye neemodeli ezivela kwi Ipotfoliyo yokutshintsha kweLANCOM.

LANCOM Techpaper - Iingqikelelo zokungafuneki kuthungelwano lokutshintsha ngokwemigangatho
ExampUkubonisana okuncinci kukujongana nothungelwano lwamanqanaba amathathu. Ukuba inethiwekhi ye-two-tier ene-aggregation / distribution kunye ne-access layers yanele kuwe, i-core layer inokushiywa. Izisombululo ezichazwe zihlala zisebenza kwaye zinokubonwa njengeengcebiso zokusetyenziswa okusebenzayo.

Imeko 1: I-100%-uptime switch network kunye ne-VPC-ekwaziyo ukufikelela kwi-switch switch

Le meko ifanelekile kumashishini amakhulu kunye campUthungelwano lwethu olunemfuno eziphezulu zokungafuneki. Elona nani liphezulu lokufikelela kumazibuko ane-100% yokungafuneki umsebenzi malunga. 60,000.
Kwimeko yokutshintsha okungundoqo kunye namachweba angama-32, izibuko elinye lidla ngokusetyenziselwa i-uplink, umz. kwiziko ledatha / i-WAN, kunye nenye i-2 ukuya kwi-8 igcinelwe i-VPC enikezela ukuphindaphinda kunye nokusebenza. Ke ngoqhagamshelo lwe-6 VPC, izibuko ezingama-25 zihlala. Kumaleko odityanisiweyo/wokusasazwa, iiswitshi ezingafunekiyo ezinamazibuko angama-48 ngalinye ziqhagamshelwe. Ngokulandelayo ezi zinokudibanisa nokutshintsha kuluhlu lofikelelo, ngalinye linobuninzi bezibuko ezingama-48. Oku kubangela ukuba

25x48x48= 57,600 izibuko

Ukuphumeza le meko, zonke iitshintshi ukusuka kwisiseko ukuya kwinqanaba lokufikelela kufuneka zibe yi-VPC-ekwaziyo. Nangona oku kunciphisa inani elinokubakho lokutshintsha, umgaqo osebenzayo / osebenzayo wenza ukuba i-bandwidths ephezulu idibanise ne-100% uptime. Ngaphaya koko, inqaku le-In-Service Software Update (ISSU) lihlangabezana nezona mfuno ziphezulu zokufumaneka kwenethiwekhi.

Le meko ifanelekile kutshintsho olutsha, oluza kukhutshwa kungekudala kunye nolona lunamandla lwe-LANCOM, olufana neswitshi engundoqo i-LANCOM CS-8132F, i-aggregation/distribution switch LANCOM YS-7154CF kunye ne-XS-4500 yokufikelela kwi-series. . Okokuqala, uchungechunge lwe-XS-4500 lwenza uqhagamshelo lwe-Wi-Fi 7-indawo yokufikelela ekwaziyo njenge-LANCOM LX-7500.

Ukutshintsha kwinqanaba ngalinye lenethiwekhi liqhagamshelwe nge-100G VPC amakhonkco oontanga. Iingqimba ezisezantsi zixhunyaniswa ngokuphindaphindiweyo nge-LAG kunye ne-100G okanye i-25G, kuxhomekeke kwi-uplink port of the access switches. Kwakhona kunokubonwa ukuba ukutshintshwa kwe-core-layer kwiqela le-VPC kuqwalaselwe kunye ne-VRRP. Oku kunceda ukwenza lula ulungelelwaniso lwendlela elandelayo kwiileya ezisezantsi kuba iiswitshi ezenziwe ngeVPC zigcina iidilesi zazo ze-IP ezihlukeneyo kwaye yiVRRP kuphela eyenza ezi zinto zibe lula ukuya komnye ekwabelwana ngawo. Ngenxa yoko, iiswitshi kumbindi kunye nokudibanisa / ukwabiwa kweeleya zivela kumaleko wofikelelo ukuba ibe lisango le-L3 enye. Ayiboniswanga ziiprothokholi ezincedisayo ze-DHCP relay kunye nendlela eguqukayo efana ne-OSPF. Ezi kufuneka ziqwalaselwe kwaye zisetyenziswe ngokomsebenzi wazo ocetyiweyo ukwenzela ukwenza ulwahlulo lwenethiwekhi kunye neeVLAN zibe lula kangangoko.

Kwinqanaba lezixhobo zokugqibela, eziboniswe apha kwi-example kunye neendawo zokufikelela, ukuphindaphinda ngokupheleleyo kuyafumaneka kunye nezixhobo ezixhotyiswe nge-interfaces ezimbini ze-Ethernet. Ekubeni ukutshintshwa kokufikelela kwe-LANCOM kubonisa oko kwaziwa ngokuba yi-"non-stop PoE", ukunikezelwa kombane kwizixhobo ezixhunyiwe aziphazamiseki nakwimeko yokutshintshwa ngokutsha okanye ukutshintshwa kohlaziyo, ngokude nje kukho enye indlela yesibini yedatha.

Imeko yesi-2: Umnatha wokutshintsha okuthembekileyo kunye nokudibanisa kweVPC kunye nokupakisha

Le meko igxile kwiindleko kwizibuko ngalinye. Ukuba kunokwenzeka ukuba umaleko wofikelelo usebenze ngeefestile zolondolozo, le meko ngokupakisha kwindawo yofikelelo yindlela ecetyiswayo. Ngokuchaseneyo nemeko yokuqala, umaleko wodibaniso/wosasazo apha unokusebenza kwi-example I-LANCOM XS-6128QF, kwaye umaleko wofikelelo unokusebenza ngeendleko eziphezulu GS-4500 endaweni yothotho lwe-XS-4500. Ekubeni ngoku kunokwenzeka ukuba ucebe kunye nokutshintsha okusibhozo kwi-stack kwi-stack yokufikelela, inani lamachweba liyanda ukuya kumachweba angama-460,800 (25 * 48 * 48 * 8). Oku kwandisa kakhulu inani lamachweba ngelixa ligcina inqanaba elamkelekileyo lokungafuneki kwaye lisondele kwi-100% ye-network uptime (kucinga ukuba kukho ifestile yokugcina).

Ngenxa yenani eliphezulu kakhulu lamazibuko, iiprotocol ze-L3 ze-VRRP kunye ne-ARF (Indlela ekwinqanaba eliphezulu kunye noThutho) zinconywa kwi-core layer. I-VPC ihlala ingundoqo kunye nokudibanisa / ukusabalalisa iileya kwaye ngoko, njengokuba kwimeko yokuqala, izalisekisa indlela ebalulekileyo ye-ISSU kuzo zombini iileya. Esikhundleni se-VPC, i-stacking isisombululo se-redundancy esetyenziselwa umgca wokufikelela, okwandisa inani lokutshintsha kokufikelela okungasetyenziswa kwi-portfolio ye-LANCOM. Ngokufana nemeko yokuqala, i-DHCP relay kunye ne-LAGs zihlala zisetyenziswa phakathi kweengqimba. Ngenxa yokulinganiselwa kokupakisha, ixesha lokunciphisa malunga nemizuzu emihlanu lifunekayo uhlaziyo lwe-firmware yesitaki sokutshintsha, okwenza kube yimfuneko ukucwangcisa ifestile yokugcina.

Imeko yesi-3: Ixabiso lenethiwekhi yokutshintsha ephuculweyo kunye nokudibanisa kweVPC kunye ne-STP

Kule meko, ukucwangciswa kwengundoqo kunye nokudibanisa / ukusabalalisa umaleko kunye ne-VPC kunye ne-LAG iyafana nangaphambili. Kuphela LANCOM iiswitshi ezisetyenziswayo, ezifana I-LANCOM XS-5116QF kwaye I-LANCOM GS-3652XUP, bonelela ngezantya ezingafaniyo zokunyusa.

Kumaleko wokufikelela, i-STP iqwalaselwe endaweni yeVPC okanye ukupakisha. Le ine-advantage ukuba iprothokholi ifuna kuphela ukusebenza kwehardware eqhelekileyo, eyonyusa ngakumbi ukhetho lofikelelo olusebenzayo (umzekelo LANCOM GS-3600 uthotho). Nangona kunjalo, i-STP inoluhlu olulinganiselweyo losetyenziso ngenxa yomgaqo osebenzayo/ongenzi nto kunye nolungiselelo olunzima.

Koku kulandelayo, sibonisa ezimbini eziqhelekileyo examples ukubonisa ukusetyenziswa kwe-STP.

Imeko 3.1: STP kwiindawo eziphantsi kolawulo

I-aggregation / distribution switch stacks kufuneka iqondwe njengeeyunithi ezimbini ezizimeleyo kwiindawo ezahlukeneyo. Ukusebenzisa i-LACP kunye ne-STP eqwalaselwe kuyo, zombini izitaki ngoku zixhunyiwe kwi-backbone equlethe isango lokuya kwi-WAN. Ukuba uxhulumaniso olusuka kwi-stack-ekunene ukuya kwisango le-WAN aluphumeleli-kwi-example, ngenxa yeziganeko ezingalindelekanga-i-stack isenakho indlela eya kwi-WAN ngokudlula kwi-stack esekhohlo ngaphandle kwesiza sinqunyulwe ngokupheleleyo. Logama nje kungekho mpazamo, udibaniso oluphakathi phakathi kwezitaki luhlala lungasebenzi. Kumaleko wofikelelo, isindululo sale meko kusasetyenziswa i-LACP endaweni ye-STP.

Imeko 3.2: I-STP enotshintsho oluninzi lwe-cascade

Le meko ifanelekile xa uhlahlo lwabiwo-mali lulinganiselwe kodwa inani elikhulu lamazibuko okufikelela lisafuna ukuphunyezwa. Ukucuthwa kweendleko kudla ngokujolisa kwi-stack ye-aggregation switch ngenxa yokuba akukho kuphepha inani elikhulu lofikelelo lokutshintsha. Ukugcina inani elithile lokuphindaphinda, iringi iqulunqwe kwinqanaba lokufikelela, elifuna ukusebenza kwe-STP. Kuyenzeka kwakhona ukuseta uqhagamshelo kabini nge-LACP apha. Nangona kunjalo, oku kungashiywa apha ngenxa yomba weendleko.

Ukuqukumbela

Ngokwandisa ipotfoliyo yabo ukubandakanya umaleko ongundoqo, iLANCOM iye yaba yindawo yokuma enye kuye nabani na ocwangcisayo okanye olawulayo.ampthina networks.
Nokuba ezi meko azikwazi ukubonisa lonke uyilo lwenethiwekhi olunokwenzeka, ezi exampsiza kunika ngaphezulu okulungileyoview yento enokuzuzwa nge-LANCOM engundoqo-, ukuhlanganiswa / ukuhanjiswa-, kunye nokufikelela kokutshintsha. Ngeengqikelelo zokuphindaphinda i-VPC, ukupakisha, kunye ne-STP evezwe apha, esona sisombululo silungileyo kuyo nayiphi na imfuneko yenethiwekhi inokufumaneka ngokuxhomekeke kwisicelo kunye nohlahlo lwabiwo-mali.

Ngaba uceba ukuseta okanye ukwandisa inethiwekhi yakho ngokutshintsha kweLANCOM?

Amagcisa e-LANCOM anamava kunye neengcali ezivela kumaqabane ethu enkqubo ziya kukunceda ngokucwangcisa, ukufakwa kunye nokusebenza koyilo lwenethiwekhi yeLANCOM esekelwe kwiimfuno, ukusebenza okuphezulu kunye nobungqina bexesha elizayo.
Ngaba unayo nayiphi na imibuzo malunga nokutshintsha kwethu, okanye ujonge iqabane lokuthengisa le-LANCOM? Nceda usitsalele umnxeba:

Intengiso eJamani
+49 (0)2405 49936 333 (D)
+49 (0)2405 49936 122 (AT, CH)

Iinkqubo zeLANCOM GmbH

INkampani yeRohde kunye neSchwarz Adenauerstr. 20/B2
52146 Wuerselen

Jemani
info@lancom.de

Lancome-systems.com

I-LANCOM, i-LANCOM Systems, i-LCOS, i-LANcommunity, kunye ne-Hyper Integration ziimpawu zorhwebo ezibhalisiweyo. Onke amanye amagama okanye iinkcazelo ezisetyenzisiweyo zisenokuba ziimpawu zorhwebo okanye ziimpawu zorhwebo ezibhalisiweyo zabanini bazo. Olu xwebhu luqulethe iingxelo eziphathelele kwiimveliso ezizayo kunye neempawu zazo. I-LANCOM Systems inelungelo lokuzitshintsha ngaphandle kwesaziso. Akukho tyala leempazamo zobugcisa kunye/okanye okushiyekileyo. 06/2024

Amaxwebhu / Izibonelelo

I-LANCOM ye-Redundancy Concepts ye-Hierarchical Switch Networks [pdf] Isikhokelo somsebenzisi IiNgcebiso zokuThintela ukuTwitsha kweNgcaciso yeeNethiwekhi, iiNethiwekhi zoTshintsho lwe-Hierarchical, iiNethiwekhi zoTshintsho zeHierarchical, Tshintsha iiNethiwekhi, iiNethiwekhi

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