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VxLAN fekitari. Chikamu 1

Mhoro, habr. Parizvino ndiri mutungamiri wekosi yeNetwork Engineer kosi kuOTUS.
Mukutarisira kutanga kwekunyoresa kutsva kwekosi "Network engineer", Ndakagadzirira zvinyorwa zvezvinyorwa zveVxLAN EVPN teknolojia.

Pane huwandu hukuru hwezvinhu zvekuti VxLAN EVPN inoshanda sei, saka ndinoda kuunganidza akasiyana mabasa uye maitiro ekugadzirisa matambudziko munzvimbo yemazuva ano data.

VxLAN fekitari. Chikamu 1

Muchikamu chekutanga chekutevedzana paVxLAN EVPN tekinoroji, ndinoda kutarisa nzira yekuronga L2 yekubatanidza pakati pevaenzi pamusoro pemucheka wetiweki.

Mienzaniso yese ichaitwa paCisco Nexus 9000v, yakaunganidzwa muSpine-Leaf topology. Hatisi kuzogara pakumisikidza Underlay network mune ino chinyorwa.

  1. Underlay network
  2. BGP yakatarisa kero-yemhuri l2vpn evpn
  3. Kugadzira NVE
  4. Suppress-arp

Underlay network

Iyo topology inoshandiswa ndeyotevera:

VxLAN fekitari. Chikamu 1

Ngatisete kero pamidziyo yese:

Spine-1 - 10.255.1.101
Spine-2 - 10.255.1.102

Leaf-11 - 10.255.1.11
Leaf-12 - 10.255.1.12
Leaf-21 - 10.255.1.21

Host-1 - 192.168.10.10
Host-2 - 192.168.10.20

Ngatitarisei kuti pane IP yekubatanidza pakati pemidziyo yese:

Leaf21# sh ip route
<........>
10.255.1.11/32, ubest/mbest: 2/0                      ! Leaf-11 доступСн Ρ‡Π΅Π΅Ρ€Π· Π΄Π²Π° Spine
    *via 10.255.1.101, Eth1/4, [110/81], 00:00:03, ospf-UNDERLAY, intra
    *via 10.255.1.102, Eth1/3, [110/81], 00:00:03, ospf-UNDERLAY, intra
10.255.1.12/32, ubest/mbest: 2/0                      ! Leaf-12 доступСн Ρ‡Π΅Π΅Ρ€Π· Π΄Π²Π° Spine
    *via 10.255.1.101, Eth1/4, [110/81], 00:00:03, ospf-UNDERLAY, intra
    *via 10.255.1.102, Eth1/3, [110/81], 00:00:03, ospf-UNDERLAY, intra
10.255.1.21/32, ubest/mbest: 2/0, attached
    *via 10.255.1.22, Lo0, [0/0], 00:02:20, local
    *via 10.255.1.22, Lo0, [0/0], 00:02:20, direct
10.255.1.101/32, ubest/mbest: 1/0
    *via 10.255.1.101, Eth1/4, [110/41], 00:00:06, ospf-UNDERLAY, intra
10.255.1.102/32, ubest/mbest: 1/0
    *via 10.255.1.102, Eth1/3, [110/41], 00:00:03, ospf-UNDERLAY, intra

Ngatitarisei kuti VPC domain yagadzirwa uye zvese zvinochinja zvapfuura cheki yekusagadzikana uye marongero ari maviri node akafanana:

Leaf11# show vpc 

vPC domain id                     : 1
Peer status                       : peer adjacency formed ok
vPC keep-alive status             : peer is alive
Configuration consistency status  : success
Per-vlan consistency status       : success
Type-2 consistency status         : success
vPC role                          : primary
Number of vPCs configured         : 0
Peer Gateway                      : Disabled
Dual-active excluded VLANs        : -
Graceful Consistency Check        : Enabled
Auto-recovery status              : Disabled
Delay-restore status              : Timer is off.(timeout = 30s)
Delay-restore SVI status          : Timer is off.(timeout = 10s)
Operational Layer3 Peer-router    : Disabled

vPC status
----------------------------------------------------------------------------
Id    Port          Status Consistency Reason                Active vlans
--    ------------  ------ ----------- ------                ---------------
5     Po5           up     success     success               1

BGP kutarisa

Pakupedzisira, unogona kuenderera mberi nekumisikidza iyo Overlay network.

Sechikamu chechinyorwa, zvinodikanwa kuronga network pakati pevaenzi, sezvakaratidzwa mumufananidzo uri pazasi:

VxLAN fekitari. Chikamu 1

Kuti ugadzirise iyo Overlay network, unofanirwa kugonesa BGP pane Spine uye Leaf switch nerutsigiro rwe l2vpn evpn mhuri:

feature bgp
nv overlay evpn

Tevere, unofanirwa kugadzirisa BGP kutarisa pakati peLeaf neSpine. Kurerutsa kuseta uye kukwidziridza kugovera kweruzivo rwekufambisa, isu tinogadzirisa Spine seNzira-Reflector server. Isu tichanyora ese Leaf mugadziriso tichishandisa matemplate kukwenenzvera kuseta.

Saka marongero ari paSpine anotaridzika seizvi:

router bgp 65001
  template peer LEAF 
    remote-as 65001
    update-source loopback0
    address-family l2vpn evpn
      send-community
      send-community extended
      route-reflector-client
  neighbor 10.255.1.11
    inherit peer LEAF
  neighbor 10.255.1.12
    inherit peer LEAF
  neighbor 10.255.1.21
    inherit peer LEAF

Iyo setup paLeaf switch inotaridzika zvakafanana:

router bgp 65001
  template peer SPINE
    remote-as 65001
    update-source loopback0
    address-family l2vpn evpn
      send-community
      send-community extended
  neighbor 10.255.1.101
    inherit peer SPINE
  neighbor 10.255.1.102
    inherit peer SPINE

PaSpine, ngatitarisei kutarisisa nese Leaf switch:

Spine1# sh bgp l2vpn evpn summary
<.....>
Neighbor        V    AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
10.255.1.11     4 65001       7       8        6    0    0 00:01:45 0
10.255.1.12     4 65001       7       7        6    0    0 00:01:16 0
10.255.1.21     4 65001       7       7        6    0    0 00:01:01 0

Sezvauri kuona, pakanga pasina matambudziko neBGP. Ngatienderere mberi kumisikidza VxLAN. Kumwe kugadziridzwa kuchaitwa chete paLeaf side rema switch. Spine inoshanda chete seye musimboti wetiweki uye inongobatanidzwa mukufambisa traffic. Yese encapsulation uye nzira yekumisa basa inoitika chete paLeaf switch.

Kugadzira NVE

NVE - network virtual interface

Tisati tatanga kuseta, ngatitangei mamwe mazwi:

VTEP - Vitual Tunnel End Point, mudziyo unotanga kana kupera VxLAN tunnel. VTEP haisati iri iyo chero network network. Sevha inotsigira VxLAN tekinoroji inogonawo kuita sevhavha. Mune yedu topology, ese maLeaf switches ari VTEP.

VNI - Virtual Network Index - network identifier mukati meVxLAN. Enzaniso inogona kudhonzwa neVLAN. Zvisinei, pane zvimwe zvakasiyana. Paunenge uchishandisa jira, maVLAN anove akasiyana chete mukati meLeaf switch imwe chete uye haafambiswe pane network. Asi VLAN yega yega inogona kuve nenhamba yeVNI yakabatana nayo, iyo yakatofambiswa pamusoro petiweki. Kuti rinoratidzika sei uye kuti ringashandiswa sei zvichakurukurwa mberi.

Ngatigonese chimiro cheVxLAN tekinoroji kushanda uye kugona kubatanidza nhamba dzeVLAN nenhamba yeVNI:

feature nv overlay
feature vn-segment-vlan-based

Ngatigadzirise iyo NVE interface, iyo ine basa rekushanda kweVxLAN. Iyi interface ine basa rekuvhara mafuremu muVxLAN misoro. Iwe unogona kudhirowa fananidzo neTunnel interface yeGRE:

interface nve1
  no shutdown
  host-reachability protocol bgp ! ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅ΠΌ BGP для ΠΏΠ΅Ρ€Π΅Π΄Π°Ρ‡ΠΈ ΠΌΠ°Ρ€ΡˆΡ€ΡƒΡ‚Π½ΠΎΠΉ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΈ
  source-interface loopback0    ! интСрфСйс  с ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ³ΠΎ отправляСм ΠΏΠ°ΠΊΠ΅Ρ‚Ρ‹ loopback0

PaLeaf-21 switch zvese zvinogadzirwa pasina matambudziko. Zvisinei, kana tikatarisa kubudiswa kwemurairo show nve peers, ipapo richava risina chinhu. Pano iwe unofanirwa kudzokera kuVPC kumisikidza. Tinoona kuti Leaf-11 neLeaf-12 vanoshanda vari vaviri uye vakabatana neVPC domain. Izvi zvinotipa mamiriro anotevera:

Host-2 inotumira furemu imwe yakananga Leaf-21 kuitira kuti itumire pamusoro penetiweki yakananga kuHost-1. Nekudaro, Leaf-21 inoona kuti kero yeMAC yeHost-1 inowanikwa kuburikidza neVTEP mbiri kamwechete. Chii chinofanira kuita Leaf-21 munyaya iyi? Mushure mezvose, izvi zvinoreva kuti loop inogona kuoneka mune network.

Kugadzirisa mamiriro aya, tinoda Leaf-11 uye Leaf-12 kuti iitewo semudziyo mumwe mukati mefekitori. Mhinduro yacho iri nyore. PaLoopback interface yatinovaka mugero, wedzera kero yechipiri. Kero yeSekondari inofanirwa kunge yakafanana pamaVTEP ese ari maviri.

interface loopback0
 ip add 10.255.1.10/32 secondary

Saka, kubva pakuona kwemamwe maVTEP, tinowana inotevera topology:

VxLAN fekitari. Chikamu 1

Ndokunge, ikozvino mugero uchavakwa pakati peiyo IP kero yeLeaf-21 uye iyo chaiyo IP pakati pemashizha maviri-11 uye Leaf-12. Ikozvino hapazovi nematambudziko ekudzidza kero yeMAC kubva kumidziyo miviri uye traffic inogona kufamba kubva kune imwe VTEP kuenda kune imwe. Ndeipi yeVTEP mbiri ichagadzirisa traffic inosarudzwa uchishandisa tafura yenzira paSpine:

Spine1# sh ip route
<.....>
10.255.1.10/32, ubest/mbest: 2/0
    *via 10.255.1.11, Eth1/1, [110/41], 1d01h, ospf-UNDERLAY, intra
    *via 10.255.1.12, Eth1/2, [110/41], 1d01h, ospf-UNDERLAY, intra
10.255.1.11/32, ubest/mbest: 1/0
    *via 10.255.1.11, Eth1/1, [110/41], 1d22h, ospf-UNDERLAY, intra
10.255.1.12/32, ubest/mbest: 1/0
    *via 10.255.1.12, Eth1/2, [110/41], 1d01h, ospf-UNDERLAY, intra

Sezvaunogona kuona pamusoro, kero 10.255.1.10 inowanikwa pakarepo kuburikidza maviri Next-hops.

Panguva ino, takabata neiyo basic yekubatanidza. Ngatifambire mberi kumisikidza iyo NVE interface:
Ngatibvei tigonese Vlan 10 uye tiisanganise neVNI 10000 pashizha rega rega kune vanogamuchira. Ngatimisei mugero weL2 pakati pevaenzi

vlan 10                 ! Π’ΠΊΠ»ΡŽΡ‡Π°Π΅ΠΌ VLAN Π½Π° всСх VTEP ΠΏΠΎΠ΄ΠΊΠ»ΡŽΡ‡Π΅Π½Π½Ρ‹Ρ… ΠΊ Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΡ‹ΠΌ хостам
  vn-segment 10000      ! АссоциируСм VLAN с Π½ΠΎΠΌΠ΅Ρ€ VNI 

interface nve1
  member vni 10000      ! ДобавляСм VNI 10000 для Ρ€Π°Π±ΠΎΡ‚Ρ‹ Ρ‡Π΅Ρ€Π΅Π· интСрфСйс NVE. для инкапсуляции Π² VxLAN
    ingress-replication protocol bgp    ! ΡƒΠΊΠ°Π·Ρ‹Π²Π°Π΅ΠΌ, Ρ‡Ρ‚ΠΎ для распространСния ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΈ ΠΎ хостС ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅ΠΌ BGP

Zvino ngatitarisei nve vezera uye tafura yeBGP EVPN:

Leaf21# sh nve peers
Interface Peer-IP          State LearnType Uptime   Router-Mac
--------- ---------------  ----- --------- -------- -----------------
nve1      10.255.1.10      Up    CP        00:00:41 n/a                 ! Π’ΠΈΠ΄ΠΈΠΌ Ρ‡Ρ‚ΠΎ peer доступСн с secondary адрСса

Leaf11# sh bgp l2vpn evpn

   Network            Next Hop            Metric     LocPrf     Weight Path
Route Distinguisher: 10.255.1.11:32777    (L2VNI 10000)        ! ΠžΡ‚ ΠΊΠΎΠ³ΠΎ ΠΈΠΌΠ΅Π½Π½ΠΎ ΠΏΡ€ΠΈΡˆΠ΅Π» этот l2VNI
*>l[3]:[0]:[32]:[10.255.1.10]/88                                   ! EVPN route-type 3 - ΠΏΠΎΠΊΠ°Π·Ρ‹Π²Π°Π΅Ρ‚ нашСго сосСда, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ Ρ‚Π°ΠΊ ΠΆΠ΅ Π·Π½Π°Π΅Ρ‚ ΠΎΠ± l2VNI10000
                      10.255.1.10                       100      32768 i
*>i[3]:[0]:[32]:[10.255.1.20]/88
                      10.255.1.20                       100          0 i
* i                   10.255.1.20                       100          0 i

Route Distinguisher: 10.255.1.21:32777
* i[3]:[0]:[32]:[10.255.1.20]/88
                      10.255.1.20                       100          0 i
*>i                   10.255.1.20                       100          0 i

Pamusoro tinoona chete EVPN nzira-mhando nzira 3. Mhando iyi yenzira inotaura nezve peer(Leaf), asi varipi vatiridzi?
Chinhu ndechekuti ruzivo nezve MAC mauto anofambiswa kuburikidza neEVPN nzira-rudzi rwechipiri

Kuti uone vatinotambira, unofanirwa kugadzirisa EVPN nzira-rudzi rwechipiri:

evpn
  vni 10000 l2
    route-target import auto   ! Π² Ρ€Π°ΠΌΠΊΠ°Ρ… Π΄Π°Π½Π½ΠΎΠΉ ΡΡ‚Π°Ρ‚ΡŒΠΈ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅ΠΌ автоматичСский Π½ΠΎΠΌΠ΅Ρ€ для route-target
    route-target export auto

Ngatiite ping kubva kuHost-2 kuenda kuHost-1:

Firewall2# ping 192.168.10.1
PING 192.168.10.1 (192.168.10.1): 56 data bytes
36 bytes from 192.168.10.2: Destination Host Unreachable
Request 0 timed out
64 bytes from 192.168.10.1: icmp_seq=1 ttl=254 time=215.555 ms
64 bytes from 192.168.10.1: icmp_seq=2 ttl=254 time=38.756 ms
64 bytes from 192.168.10.1: icmp_seq=3 ttl=254 time=42.484 ms
64 bytes from 192.168.10.1: icmp_seq=4 ttl=254 time=40.983 ms

Uye pazasi tinogona kuona iyo nzira-yemhando yechipiri ine host MAC kero yakaonekwa muBGP tafura - 2 uye 5001.0007.0007

Leaf11# sh bgp l2vpn evpn
<......>

   Network            Next Hop            Metric     LocPrf     Weight Path
Route Distinguisher: 10.255.1.11:32777    (L2VNI 10000)
*>l[2]:[0]:[0]:[48]:[5001.0007.0007]:[0]:[0.0.0.0]/216                      !  evpn route-type 2 ΠΈ mac адрСс хоста 1
                      10.255.1.10                       100      32768 i
*>i[2]:[0]:[0]:[48]:[5001.0008.0007]:[0]:[0.0.0.0]/216                      ! evpn route-type 2 ΠΈ mac адрСс хоста 2
* i                   10.255.1.20                       100          0 i
*>l[3]:[0]:[32]:[10.255.1.10]/88
                      10.255.1.10                       100      32768 i
Route Distinguisher: 10.255.1.21:32777
* i[2]:[0]:[0]:[48]:[5001.0008.0007]:[0]:[0.0.0.0]/216
                      10.255.1.20                       100          0 i
*>i                   10.255.1.20                       100          0 i

Tevere, iwe unogona kuona ruzivo rwakadzama paKugadziridza, kwawakagamuchira ruzivo nezve MAC Host. Pazasi haisi yese yekubuda kwemirairo.

Leaf21# sh bgp l2vpn evpn 5001.0007.0007

BGP routing table information for VRF default, address family L2VPN EVPN
Route Distinguisher: 10.255.1.11:32777        !  ΠΎΡ‚ΠΏΡ€Π°Π²ΠΈΠ» Update с MAC Host. НС Π²ΠΈΡ€Ρ‚ΡƒΠ°Π»ΡŒΠ½Ρ‹ΠΉ адрСс VPC, Π° адрСс Leaf
BGP routing table entry for [2]:[0]:[0]:[48]:[5001.0007.0007]:[0]:[0.0.0.0]/216,
 version 1507
Paths: (2 available, best #2)
Flags: (0x000202) (high32 00000000) on xmit-list, is not in l2rib/evpn, is not i
n HW

  Path type: internal, path is valid, not best reason: Neighbor Address, no labe
led nexthop
  AS-Path: NONE, path sourced internal to AS
    10.255.1.10 (metric 81) from 10.255.1.102 (10.255.1.102)    ! с ΠΊΠ΅ΠΌ ΠΈΠΌΠ΅Π½Π½ΠΎ строим VxLAN Ρ‚ΠΎΠ½Π½Π΅Π»ΡŒ
      Origin IGP, MED not set, localpref 100, weight 0
      Received label 10000         ! НомСр VNI, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ ассоциирован с VLAN, Π² ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠΌ находится Host
      Extcommunity: RT:65001:10000 SOO:10.255.1.10:0 ENCAP:8        ! Π’ΡƒΡ‚ Π²ΠΈΠ΄Π½ΠΎ, Ρ‡Ρ‚ΠΎ RT сформировался автоматичСски Π½Π° основС Π½ΠΎΠΌΠ΅Ρ€ΠΎΠ² AS ΠΈ VNI
      Originator: 10.255.1.11 Cluster list: 10.255.1.102
<........>

Ngationei kuti mafuremu anotaridzika sei kana achipfuura nemufekitori:

VxLAN fekitari. Chikamu 1

Kudzvanya-ARP

Zvakanaka, isu tave neL2 kutaurirana pakati pevaridzi uye isu tinogona kupedza ipapo. Zvisinei, hazvisi zvose zviri nyore. Chero bedzi isu tine vashoma vanogamuchira hapazove nematambudziko. Asi ngatimbofungidzira mamiriro ezvinhu apo tine mazana nezviuru zvevaenzi. Tingasangana nedambudziko ripi?

Dambudziko iri BUM (Broadcast, Unknown Unicast, Multicast) traffic. Muchinyorwa chino, isu tichafunga nezve sarudzo yekubata neyekutepfenyura traffic.
Iyo huru Broadcast jenareta muEthernet network ndiyo mauto pachawo kuburikidza neARP protocol.

Nexus inoshandisa nzira inotevera kurwisa zvikumbiro zveARP - kudzvanya-arp.
Ichi chimiro chinoshanda sezvinotevera:

  1. Host-1 inotumira chikumbiro cheAPR kune Broadcast kero yetiweki yayo.
  2. Chikumbiro chinosvika paLeaf switch uye pachinzvimbo chekupfuudza chikumbiro ichi mberi kune jira rakananga kuHost-2, Leaf rinopindura pacharo uye rinoratidza IP inodiwa neMAC.

Saka, chikumbiro cheBroadcast hachina kuenda kufekitari. Asi izvi zvingashanda sei kana Leaf achingoziva kero yeMAC?

Zvese zviri nyore, EVPN nzira-rudzi rwechipiri, kuwedzera kukero yeMAC, inogona kufambisa musanganiswa weMAC/IP. Kuti uite izvi, unofanirwa kugadzirisa IP kero muVLAN paLeaf. Mubvunzo unomuka, ndeipi IP yandinofanira kuisa? Pane nexus zvinokwanisika kugadzira kero yakagoverwa (yakafanana) pane ese switch:

feature interface-vlan

fabric forwarding anycast-gateway-mac 0001.0001.0001    ! Π·Π°Π΄Π°Π΅ΠΌ virtual mac для создания распрСдСлСнного шлюза ΠΌΠ΅ΠΆΠ΄Ρƒ всСми ΠΊΠΎΠΌΠΌΡƒΡ‚Π°Ρ‚ΠΎΡ€Π°ΠΌΠΈ

interface Vlan10
  no shutdown
  ip address 192.168.10.254/24          ! Π½Π° всСх Leaf Π·Π°Π΄Π°Π΅ΠΌ ΠΎΠ΄ΠΈΠ½Π°ΠΊΠΎΠ²Ρ‹ΠΉ IP
  fabric forwarding mode anycast-gateway    ! Π³ΠΎΠ²ΠΎΡ€ΠΈΠΌ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Ρ‚ΡŒ Virtual mac

Saka, kubva pamaonero evaenzi, network ichaita seizvi:

VxLAN fekitari. Chikamu 1

Ngatitarisei BGP l2route evpn

Leaf11# sh bgp l2vpn evpn
<......>

   Network            Next Hop            Metric     LocPrf     Weight Path
Route Distinguisher: 10.255.1.11:32777    (L2VNI 10000)
*>l[2]:[0]:[0]:[48]:[5001.0007.0007]:[0]:[0.0.0.0]/216
                      10.255.1.21                       100      32768 i
*>i[2]:[0]:[0]:[48]:[5001.0008.0007]:[0]:[0.0.0.0]/216
                      10.255.1.10                       100          0 i
* i                   10.255.1.10                       100          0 i
* i[2]:[0]:[0]:[48]:[5001.0008.0007]:[32]:[192.168.10.20]/248
                      10.255.1.10                       100          0 i
*>i                   10.255.1.10                       100          0 i

<......>

Route Distinguisher: 10.255.1.21:32777
* i[2]:[0]:[0]:[48]:[5001.0008.0007]:[0]:[0.0.0.0]/216
                      10.255.1.20                       100          0 i
*>i                   10.255.1.20                       100          0 i
* i[2]:[0]:[0]:[48]:[5001.0008.0007]:[32]:[192.168.10.20]/248
*>i                   10.255.1.20                       100          0 i

<......>

Kubva pakubuda kwemirairo iwe unogona kuona kuti muEVPN nzira-rudzi rwechipiri, kuwedzera kune MAC, isu tava kuona zvakare iyo host IP kero.

Ngatidzokei kune kuseta suppress-arp. Izvi zvinogoneswa kune yega yega VNI zvakasiyana:

interface nve1
  member vni 10000   
    suppress-arp

Ipapo kumwe kuoma kunomuka:

  • Kuti chimiro ichi chishande, nzvimbo muTCAM memory inodiwa. Heino muenzaniso wezvirongwa zvekudzvanya-arp:

hardware access-list tcam region arp-ether 256

Kuseta uku kunoda kupetwa kaviri. Ndiko kuti, kana ukaisa 256, saka unoda kusunungura 512 muTCAM.Kugadzika TCAM kunopfuura kudarika kwechinyorwa ichi, sezvo kugadzirisa TCAM kunoenderana chete nebasa rawakapiwa uye rinogona kusiyana kubva kune imwe network kune imwe.

  • Kuita kudzvanya-arp kunofanirwa kuitwa pane ese Leaf switch. Nekudaro, kuomarara kunogona kumuka kana uchigadzirisa paLeaf pairs anogara muVPC domain. Kana TCAM ikashandurwa, kuwirirana pakati pevaviri kuchaputswa uye node imwe inogona kubviswa kushanda. Uyezve, chigadziriso chekugadzirisa chinogona kudiwa kuti uise TCAM shanduko yekugadzirisa.

Nekuda kweizvozvo, iwe unofanirwa kunyatso funga kana, mumamiriro ako ezvinhu, zvakakodzera kushandisa iyi seti mufekitori inomhanya.

Izvi zvinopedzisa chikamu chekutanga chenhevedzano. Muchikamu chinotevera tichatarisa nzira kuburikidza nejira reVxLAN rine kupatsanurwa kwematiweki kuita maVRF akasiyana.

Uye zvino ndinokoka munhu wese kuti auye webinar yemahara, mukati umo ini ndichakuudza zvakadzama nezve kosi. Vatori vechikamu makumi maviri vekutanga kunyoresa kune iyi webinar vachawana Discount Sitifiketi kuburikidza neemail mukati memazuva 20-1 mushure mekutepfenyura.

Source: www.habr.com

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