Nexus TCAM: me ya sa yankin danne ARP ke buƙatar tsaga biyu
Shigarwar hankali rabin kasafin ne kawai. Fasalin da aka sassaka da fadi biyu na bukatar tsaga guda biyu, kuma tsaga daya kyauta a wurin da bai dace ba ba zai wadatar ba.
Kuna auna yankin danne ARP, kuna kirga shigarwar da zanen ke bukata, kuna samun yanki mai fiye da haka sararin ajiya, kuma canjin har yanzu bai shiga ba. Babu abin da aka kirga da kuskure. Kasafin da kuke karantawa ana auna shi da tsaga, kuma fasalin da aka sassaka da fadi biyu na bukatar biyu daga cikinsu kafin a yi la'akari da kowace shigarwa.
Dauki rabo a matsayin matsalar shimfida da takamaiman adadin raka'a, kuma lissafin zai fara yin daidai.
Yanki yana da tsaga, ba shigarwa ba
An raba TCAM a kan wadannan dandamali zuwa tsaga, kuma kowace tsaga na cikin yanki daya kawai. Ana auna yankuna da tsaga, kuma fadin fasalin yana kayyade tsaga nawa yake cinyewa a kalla. Fasalin fadi daya na iya zama a tsaga daya; fasalin fadi biyu na bukatar ma'aurata masu juna biyu.
| Concept | What it means when you plan |
|---|---|
| Slice | The indivisible unit; it belongs to one region and cannot be shared |
| Feature width | Single or double; a double-width feature must have two slices available |
| Logical entries | What the feature wants to store, which only matters after the slices are allocated |
Don haka tsaga kyauta ba ita ce sararin da za a iya amfani da ita kai tsaye ba. Yankuna biyu masu fadi daya a kan tsaga daban-daban ba sa haduwa su zama ma'auratan da sabon yanki mai fadi biyu ke bukata, kuma teburin da ke nuna yalwataccen sarari marar amfani gaba daya yana gaya muku game da tafki da ba za ku iya kashewa ba.
Rubuta tushen awo kafin ka sassaka
Tattara ainihin samfurin kayan aiki, fitowar NX-OS, fadin yankuna da girmansu na yanzu, da fasalolin da ke cinye kowane yanki. Yi haka kafin kowane canji, domin bayan sake lodawa tsohon yanayi abin tunawa ne ba gaskiya ba.
show version
show hardware capacity
show running-config | include hardware profileSunayen umarni sun bambanta bisa dandamali da fitowa, kuma jagorar sassaka tana ambaton wadanda suka shafi nata kayan aiki. Karanta fitowar da kuke samu a zahiri maimakon tsammanin umarni daga wani samfuri zai samar da teburi daya.
Sannan rubuta abin da kowane yanki yake yi. Yankin VACL shine karfin tacewa saboda wani dalili, kuma yankin QoS yana wanzuwa domin wani ya auna shi don manufar da ke aiki har yanzu. Shirin da ke daukar wadannan wurare a matsayin sarari da za a dawo da shi ba tare da dubawa ba shiri ne na cire fasali a hankali. Nada mai shi ga kowane yankin da kuke niyyar ragewa, kuma ba wa wannan mai shi sabon girma kafin tagar.
Yi la'akari da alkibla kuma. Inda dandamali ke hada rabon shiga da fita, canji a gefe daya na iya cinye kasafi a wancan gefen, kuma shirin da ke kirga teburin shiga kawai zai yi kama da daidai kuma zai kasa a sake lodawa.
Abin da sakin babban tsaga daya ba ya yi
Rage babban yanki mai fadi daya yana sakin tsaga daya. Idan yankin da kake nufi na bukatar ma'aurata, wannan tsaga daya na iya zama mara amfani sai idan tana kusa da wata tsaga kyauta, kuma kusanci siffa ce ta shimfida ba ta jimillar ba.
Wannan shine lokacin da mutane ke cewa dandamalin ya lalace ko takardun sun yi kuskure. Babu ko daya daga cikinsu da gaskiya. Tsarin rabo yana yin daidai abin da ya fada, kuma kuskuren shine kirga sarari kyauta maimakon kirga tsaga kyauta a wuraren da suka dace. Da zarar ka zana shimfidar a takarda, ma'auratan da suke akwai ko suna nan ko babu, kuma wannan tattaunawa ce mafi sauki da mai dandamalin fiye da jayayya kan jimloli.
Akwai kuma tarkon fitowa wanda ya cancanci ambata. Jagorar sassaka ta Cisco tana bayanin wani tsara na kayan aiki kuma ta bayyana sarai cewa tsarinta ba Cloud Scale bane ko Silicon One. Sunayen yankuna, girma na asali da ma wadanne fasali ke da fadi biyu sun bambanta a wani wuri, don haka gargadi game da wani yanki a kan dandamali daya shaida ne game da wancan dandamalin da fitowar, ba girke-girke na duniya ba.
Canza yanki canjin fasali ne
Kowane sassaka cinikin karfi ne. Rage yanki don samar da wuri don danne ARP yana rage duk abin da wancan yankin yake karewa, kuma sakamakon bazai bayyana ba sai an sake amfani da manufar da ke bukatar wurin.
Samu amincewar rubutacciya daga mai kowane fasalin da abin ya shafa kafin tagar. Wannan ba tsarin hukuma bane: wanda ya fara auna yankin VACL ya san abin da yake tacewa, kuma wanda ke samar da wuri yawanci bai sani ba.
Yi tsammanin sake lodawa ga canje-canjen da ke canza shimfidar kayan aiki. Wasu dandamali suna bukata wasu kuma ba sa, amma shirya ba tare da tagar kulawa ba lokacin da sake lodawa zai yiwu shine yadda canjin hanya ke zama katsewa. Tsara tagar a kusa da sake lodawa ba a kusa da umarni ba, kuma ajiye rubutun bayanan da suka gabata a wani wuri da za ka iya karanta shi daga na'urar da ta rasa zaman sarrafawa.
Aiwatar da tabbatar da tushen awo
Aiwatar da shirin ta hanyar da dandamalin ke goyon baya, sannan tabbatar da ayyukan da ka kiyaye, ba wanda ka kara kawai ba. Sabon yankin da aka sassaka wanda ke aiki yayin da tacewa ta tsaya yin daidaito a hankali mummunan sakamako ne fiye da asalin gazawar.
Sake karanta fitowar karfin ajiya ka kwatanta da tushen awo da ka rubuta, sannan gwada fasalin da ya haifar da canjin. Jagorar sassaka ta Nexus TCAM ita ce madogara ga tsarin fadi da tsaga da aka bayyana a nan, gami da wace tsara ta kayan aiki take rufewa.