"Extreme Extended Edge", kapena kusintha kutengera muyezo wa IEEE 802.1BR

Extreme Extended Edge (yomwe imadziwikanso kuti Virtual Port Extender - VPEX) ndiukadaulo watsopano womwe unayambitsidwa koyamba mu EXOS opareting'i sisitimu ndikumasulidwa 22.5. Yankho lokhalo likukhazikitsidwa pa IEEE 802.1BR (Bridge Port Extension) muyezo, ndipo monga gawo la kutulutsidwa kwa EXOS 22.5, chithandizo cha mzere watsopano wa hardware wa ExtremeSwitching V400 chinawonjezedwa.

"VPEX Bridge" ndikusintha kwenikweni komwe kumakhala ndi zigawo monga Controlling Bridge (CB) ndi Bridge Port Extender (BPE). Kuonetsetsa kulolerana kwa zolakwika, ndizotheka kulumikizana ndi ma CB awiri mkati mwa switch imodzi pogwiritsa ntchito ukadaulo wa MLAG. Mapangidwe akusintha kotereku amakumbutsa zakusintha kwachassis kwakanthawi kapena kuchuluka kwa ma switch. Ndipo ngati mu lingaliro la "Control Plane" ntchito izi ndizowona kapena zochepa, ndiye kuti ntchito ya "Data Plane" imasiyana kwambiri. Kupatula apo, cholinga cha 802.1br ndikulumikiza doko lakutali ndi ntchito yapa MAC (Media Access Control), ndikupatula magalimoto kuchokera kumadoko akutali.

Controlling Bridge

• Malo amodzi okhawo owongolera
• Kusintha konse kumachitika kwanuko pa CB
• Thandizo la VPEX liyenera kutsegulidwa, kuyambiranso kumafunika kuti musinthe mawonekedwe ogwiritsira ntchito
• CB nthawi zonse imakhala #1
• Pakutulutsidwa kwapano, CB imathandizira kulumikizana munthawi imodzi mpaka 48 BPE
• Mawonekedwe a CB amathandizidwa pamapulatifomu ena (pakali pano X670G2 ndi X690, nsanja zina zidzawonjezedwa pamene akutulutsidwa)
• Zilolezo za EXOS zimagwira ntchito ku SV yokha
• VPEX safuna zilolezo zina
• Ndi udindo wonse pakukonza deta-ndege ndi kusefa magalimoto
• Lili ndi chithunzithunzi cha doko lililonse "lotalikitsidwa".

Bridge Port Extender

• Zida za BPE zimayendetsedwa ngati malo osinthira chassis
• Mipata ya BPE imawerengedwa kuyambira 100 mpaka 162

Slot-1 VPEX X690-48x-2q-4c.3 # show slot
Slots    Type                 Configured           State       Ports  Flags
-------------------------------------------------------------------------------
Slot-1   X690-48x-2q-4c       X690-48x-2q-4c       Operational   72   M
Slot-100 V400-48t-10GE4       V400-48t-10GE4       Operational   52   M
Slot-101 V400-48t-10GE4       V400-48t-10GE4       Operational   52   M
Slot-102 V400-48t-10GE4       V400-48t-10GE4       Operational   52   M
Slot-103 V400-48t-10GE4       V400-48t-10GE4       Operational   52   M

• Palibe chifukwa cholumikizira IP kapena Out-of-Band IP ku BPE
• Kukonzekera konse, kuwunika, kuthetsa mavuto, kuwunika kumachitika kudzera pa mawonekedwe a CB

Slot-1 VPEX X670G2-48x-4q.8 # config vlan v100 add port 100:1,100:3
*Slot-1 VPEX X670G2-48x-4q.9 # show port 100:1-3 statistics no-refresh
Port   Link      Tx Pkt     Tx Byte     Rx Pkt     Rx Byte  Rx Pkt   Tx Pkt
       State      Count       Count      Count       Count   Mcast    Mcast
====== ===== ========== =========== ========== =========== ======= ========
100:1  A     2126523437 >9999999999          0           0       0    14383
100:2  R              0           0          0           0       0        0
100:3  A          21824     4759804 2126738453 >9999999999       0    14383
====== ===== ========== =========== ========== =========== ======= ========

• Ma BPE sasintha kusintha komweko. Zotsatira zake, magalimoto onse amasunthidwa ku CB ndipo, ngati kuli kofunikira, amatumizidwa ku doko loyandikana ndi malo omwewo a BPE, amabwereranso. (BPE ilandila paketi, ndikuwonjezera mutu wa E-TAG ndikutumiza kudoko lakumtunda)

Kugwira ntchito ngati BPE, nsanja yatsopano ya hardware, ExtremeSwitching V400, yayambitsidwa. Zimaphatikizapo zowonjezera madoko a 24/48 10/100/1000 Base-T madoko okhala kapena opanda thandizo la PoE. Mitundu yokhala ndi ma doko 24 ili ndi ma doko awiri a 10G, pomwe ma doko 48 ali ndi ma doko anayi a 10G.

ntchito Features

Ma topology okhala ndi ma CB amodzi kapena awiri komanso maunyolo opitilira anayi a VPE amathandizidwa. Madoko otayika amatha kuphatikizidwa kukhala LAG (mpaka madoko 4 amitundu ya V400-48t/p). Malo omaliza amatha kulumikizana ndi malo osiyanasiyana a BPE pogwiritsa ntchito LAG.

Kuzindikira kwa BPE ndikugwira ntchito kumatengera ma protocol monga:

• LLDP - kuzindikira koyambirira ndi kutsimikiza kwa mtundu ndi kuthekera kwa chipangizo cholumikizidwa
• ECP - "Edge Control Protocol" zoyendera za PE-CSP
• PE-CSP - "Port Extender Control and Status Protocol" kukonza kuwongolera kwa BPE ndi Controlling Bridge
• LACP - kukhazikitsa LAG pakati pa "cascade" <—> "kumtunda" madoko

Ngati mapangidwe olekerera zolakwika ndi ma CB awiri ndi MLAG amagwiritsidwa ntchito, ndiye kuti CB imodzi ikayambiranso, BPE idzapitiriza kutumiza magalimoto kudzera pa Controlling Bridge yotsala. Ngati CB yokhayo iyambiranso, ndiye kuti BPE idzayimitsa madoko ake "owonjezera".
Kuti mukhale ndi mwayi wokonza topology ndi 2 CBs, kuthekera kokonza madoko a MLAG a anzawo onse kuchokera ku ma CBs awonjezedwa. The mode amatchedwa "mlag orchestration", momwe anzawo synchronize gawo la kasinthidwe zokhudzana ndi zoikamo madoko MLAG. Kukonzekera kumafanana ndi kukhazikitsa "virtual-router".

Slot-1 VPEX X670G2-48x-4q.11 # start orchestration mlag "bottom"
(orchestration bottom) Slot-1 VPEX X670G2-48x-4q.12 # exit
Slot-1 VPEX X670G2-48x-4q.13 #

Ntchito ya "Controlling Bridge" ilipo mutatha kukhazikitsa gawo laulere la EXOS, lomwe lili ndi .xmod extension. Gawo lomweli lili ndi zithunzi zosinthidwa za BPE. Kwenikweni, CB ndi BPE zikazindikirana, CB imayang'ana mtundu wa firmware womwe wayikidwa pa BPE ndipo, ngati kuli kofunikira, amawusintha okha.

Zomwe zili pamwambazi zimapangitsa kuti zitheke kusintha malo a BPE mosavuta komanso mwachangu ngati kuli kofunikira. Popeza malo a BPE sasunga config ndipo samagwirizanitsidwa mwanjira iliyonse mu dongosolo, atangosintha chipangizocho ndikuyatsa mphamvu, BPE idzazindikiridwa ndi SV ndipo config yomwe ilipo idzagwiritsidwa ntchito, komanso ngati firmware. zasinthidwa.

Yankho ili ndiloyenera kwambiri pamanetiweki omwe ali ndi njira zambiri zaku North/South traffic, monga ma campus network, ma network abizinesi muzotengera, magawo amaphunziro, malo azamalonda ndi ena. Ndipo tikubwerezanso kuti ubwino wa maukonde omangidwa pa "Extreme Extended Edge" yankho lidzakhala:

• Kuchepetsa kuchuluka kwa zigawo za zomangamanga zachikhalidwe zama network kuchokera ku kasinthidwe ndi kawonedwe ka kasamalidwe
• Zosavuta kukulitsa ndi kutumiza
• Palibe chifukwa chokhala ndi zolumikizira zodzipatulira kapena zolumikizira za OOB Mgmt ku malo a BPE
• Kuchepetsa chilolezo (ngati kuli kofunikira, gwiritsani ntchito ku NE)
• Malo amodzi a kasinthidwe, kuyang'anira ndi kuthetsa mavuto
• Onetsani mu NMS ngati chosinthira chimodzi
• Palibe chifukwa chowonjezera maphunziro kapena kukulitsa antchito

Source: www.habr.com