ciscovPCVirtualPortChannel技術(shù)詳解PPT學(xué)習(xí)教案

1、會計學(xué)1ciscovPCVirtualPortChannel技術(shù)詳解技術(shù)詳解第1頁/共50頁傳統(tǒng)STP 二層網(wǎng)絡(luò)邏輯拓?fù)銿PC 網(wǎng)絡(luò)邏輯拓?fù)涞?頁/共50頁第3頁/共50頁vPC peernon-vPC devicevPC peer-keepalive linkvPC member portvPCvPC member portCFS protocolvPC peer-linkvPC Domain第4頁/共50頁vPC Domain第5頁/共50頁vPC peer-link第6頁/共50頁CFS MessagingSTP does send BPDUsIGMP updatesMAC update

2、sSTP doesnt send BPDUsHSRP Standby-ActiveL3IGMP updatesMAC updates第7頁/共50頁n系統(tǒng)會對這些不一致的配置產(chǎn)生Syslog第8頁/共50頁不能通過peer-link在路由可以使用引擎上的管理口vPC peer-keepalive link第9頁/共50頁vPC member portvPC member port第10頁/共50頁vPC member portvPCNormal Port-channel port第11頁/共50頁第12頁/共50頁N7k01N7k02第13頁/共50頁第14頁/共50頁MAC_AMAC_BSW

3、3SW2SW4SW1vPC1vPC2vPC_PLL2L3ECMPPacket SendECMPPort channel path selectionPacket FloodingPacket FloodingPacket(s) blocked on vPC member ports, vPC peer-link traversedvPC PK-LinkCFS MAC table update message第15頁/共50頁MAC_AMAC_BSW3SW2SW4SW1vPC1vPC2vPC_PLL2L3ECMPPacket SendECMPPort channel path selection

4、Local forwarding, previously learned destinationvPC PK-Link第16頁/共50頁第17頁/共50頁InfrastructureKernelVDC 1VDC 2VDC 3GLBPVDC 4Layer 3 ProtocolsOSPFBGPEIGRPGLBPHSRPIGMPPIMSNMPVDC 2Layer 2 ProtocolsVLANPVLANUDLDCDP802.1XSTPLACPCTSVirtual Device Context一個物理設(shè)備上虛擬多個邏輯設(shè)備靈活的硬件資源分配軟件功能以及故障隔離有效提高資源利用率安全獨立的管理模式Lay

5、er 2 ProtocolsLayer 3 ProtocolsVLANPVLANOSPFBGPEIGRPHSRPIGMPUDLDCDP802.1XSTPLACPPIMCTSSNMPVDC 1第18頁/共50頁VDC1VDC2VDC2VDC3VDC3VDC4VDC4VDC1Nexus7010Nexus7010Distribution Core Access 第19頁/共50頁第20頁/共50頁4.1(3)4.1(3)4.2(1)4.1(3)4.2(1)4.2(1)第21頁/共50頁第22頁/共50頁vPCvPCSTP is running to manage loops outside of v

6、PCs direct domain, or before initial vPC configuration第23頁/共50頁MAC_AMAC_BSW3SW2SW4SW1vPC1vPC2vPC_PLL2L3ECMPPacket SendECMPSTP RootSTP Root BackupPacket FloodingPacket FloodingSTP process updated, BDPUs not forwarded on vPC member portsBPDUs forwardedvPC PK-Link第24頁/共50頁AggregationAccessData Center C

7、oreBLRNEBPDUguardLoopguardRootguardNetwork portEdge or portfast port type-Normal port typeBRRNN-RRRRRR-BEBBEBELayer 3Layer 2 (STP + Rootguard)Layer 2 (STP + BPDUguard)LESecondaryRootHSRPSTANDBYPrimaryRootHSRPACTIVEE-PrimaryvPCSecondaryvPCvPCDomain第25頁/共50頁第26頁/共50頁vpc peeractiveL3L2HSRP/VRRP “Standb

8、y”: Active for shared L3 MACHSRP/VRRP “Active”: Active for shared L3 MAC第27頁/共50頁第28頁/共50頁MAC_AMAC_BSW3SW2SW4SW1vPC1vPC2vPC_PLL2L3ECMPPacket SendECMPHSRP ActiveHSRP StandbyHSRP active MAC is populated into the L3 hardware forwarding tables, creating a local forwarding capability on the HSRP standby

9、devicevPC PK-LinkHSRP active process communicates the active MAC to its neighbor. Only the HSRP active process responds to ARP requests第29頁/共50頁vPC PLvPC PKLL3L2Local Routing for peer router mac TrafficN7k(config-vpc-domain)# peer-gateway第30頁/共50頁第31頁/共50頁接入交換機接入交換機VPCVPC Primary PrimaryHSRPHSRP Act

10、ive ActiveSTPSTP Root RootVPCVPC Secondary SecondaryHSRPHSRP Standby StandbySTPSTP Root Secondary Root Secondary L2L2L3L3ECMPECMP123456第32頁/共50頁接入交換機接入交換機VPCVPC Primary PrimaryHSRPHSRP Active ActiveSTPSTP Root RootVPCVPC Secondary SecondaryHSRPHSRP Standby StandbySTPSTP Root Secondary Root Secondary

11、 L2L2L3L3ECMPECMP第33頁/共50頁接入交換機接入交換機VPCVPC Primary PrimaryHSRPHSRP Active ActiveSTPSTP Root RootVPCVPC Secondary SecondaryHSRPHSRP Standby StandbySTPSTP Root Secondary Root Secondary L2L2L3L3ECMPECMP第34頁/共50頁接入交換機接入交換機VPCVPC Primary PrimaryHSRPHSRP Active ActiveSTPSTP Root RootVPCVPC Secondary Secon

12、daryHSRPHSRP Standby StandbySTPSTP Root Secondary Root Secondary L2L2L3L3ECMPECMP第35頁/共50頁接入交換機接入交換機VPCVPC Primary PrimaryHSRPHSRP Active ActiveSTPSTP Root RootVPCVPC Secondary SecondaryHSRPHSRP Standby StandbySTPSTP Root Secondary Root Secondary L2L2L3L3ECMPECMP第36頁/共50頁接入交換機接入交換機VPCVPC Primary Pri

13、maryHSRPHSRP Active ActiveSTPSTP Root RootVPCVPC Secondary SecondaryHSRPHSRP Standby StandbySTPSTP Root Secondary Root Secondary L2L2L3L3ECMPECMP12第37頁/共50頁接入交換機接入交換機VPCVPC Primary PrimaryHSRPHSRP Active ActiveSTPSTP Root RootVPCVPC Secondary SecondaryHSRPHSRP Standby StandbySTPSTP Root Secondary Ro

14、ot Secondary L2L2L3L3ECMPECMP21第38頁/共50頁接入交換機接入交換機VPCVPC Primary PrimaryHSRPHSRP Active ActiveSTPSTP Root RootVPCVPC Secondary SecondaryHSRPHSRP Standby StandbySTPSTP Root Secondary Root Secondary L2L2L3L3ECMPECMP第39頁/共50頁第40頁/共50頁接入交換機接入交換機VPCVPC Primary PrimaryHSRPHSRP Active ActiveSTPSTP Root Roo

15、tVPCVPC Secondary SecondaryHSRPHSRP Standby StandbySTPSTP Root Secondary Root Secondary L2L2L3L3ECMPECMP第41頁/共50頁Orphan PortsOrphan Ports第42頁/共50頁Router7k17k2SwitchPo1Po2RouterSwitchL3 ECMPPo2第43頁/共50頁L3L2VLAN AVLAN B第44頁/共50頁VSS vPC支持情況設(shè)備型號Catalyst 6500Nexus 7000, Nexus 5000鏈路捆綁L2跨機箱鏈路捆綁(Active-act

16、ive)是是是否支持L3 鏈路捆綁是否控制層面/ HA控制層面統(tǒng)一獨立，雙活配置文件統(tǒng)一獨立引擎冗余跨機箱冗余每個機箱都有冗余L2鏈路捆綁協(xié)議LACP, PaGP(+)LACP是否需要STP 否否L3單個邏輯網(wǎng)關(guān)是 (不需要FHRP)是, active-active HSRP路由進程單個相互獨立路由鄰居減少相互獨立組播PIM DR單個相互獨立 (DR&N-DR)第45頁/共50頁第46頁/共50頁第47頁/共50頁vPC Peer-linkS1S2S3S4vPC PrimaryvPC SecondaryvPC1Bridge PriorityVLAN 1 4KVLAN 2 8KBridge Prior