中小型企业网络的构建

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201012(350001)【】:,。,、、、。【】:;;、,,。,、。、FXO/FXSPBX(),PBX,。Voip(8),Voip,。、,,(),Hub-Spoken。TCP/IP,,,,,。、,,,,,。3.1,。,CiscoCatalyst4506。,3。HSRP,Cisco。MAC,IP。MACIPLAN。HSRP。3.2,。、WAN。,,。3.3。,。(),,。3.4Cisco2800,、、IP/MPLSWAN、IP、,Cisco2800。VPN、NAT、MPLSVPNPE、IPGK,。52201012、4.14.1.1,。NAT,,IP,IPInternet。4..1.2NAT(NAT,networkaddresstranslation)Internet。NATIP,。NAT,,IP,IPInternet。NATIETF,Internet。NATInternetIP,InsideOutsideNAT,IPIP。NATIPIP。NAT3:NAT、NATPAT。①NAT:NAT,。,。E-MainFTP,IP,。②NAT:NAT,。NAT。③PAT:PATIP,。PATIP。4.24.2.1,MAC。,IOS,IOS。:2。MACMAC。:CAM(contextaddressmemory),MAC;CAM。3:,CAM,,,(forward);,(fil-ter);,,(flood),,。4.2.2VtpVTP(VLANTrunkingProtocol):VLAN,。VTPVLAN。VTPservervlan,,,。VTPtrunk。VTP:VTPserver、VTPclientVTPtransparent。①(server):VTP、VLAN,。,。VTP,VTP。②(client):VTP、vlan,VTPvlan。VTPtrunk,VTP。③(transparent):VTP。、vlan,vlan,VTPvlan。,trunkVTP,VTP。。4.2.3Trunkvlan,Trunk。Vlan,VlanTrunk。TrunkVlan。Vlan,Trunk,,Vlan;,,Vlan。CiscoTrunk,DTP,DTPTrunk。4.2.4(Ethernetchannel)53201012(23)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!,ERP。、,,ERP,ERP。ERP,ERP,ERP、、、、,ERP,,,,。、、、,、、、,ERP。,ERP、、、,:,。、,,;,。,。,。,,、。:[1].ERP.2008.12.[2].:.2009.1[3],.ERP.2008.3[4].ERP.2010-18-136,。,Etherchannel,。,,,,。Etherchannel,IP、IP、MAC、MAC、IPIP,MACMAC。Etherchannel。CiscoCatalyst4506,MAC、IP:①MAC:,MAC,。,,。②MAC:,MAC,。MAC(),MAC()。Etherchannel,。。4.3,,,()。Windows,,。ARPMAC,。,,,,ARP。,,。100%,,,。HSRPHSRP。,。100,100,。HSRPHSRP,HSRP。Hello,。。:[1],.、[M].:,2007.[2],.CCDP:Cisco(ARCH)[M].:2006.[3].()[EB/OL].ChinaITLab.2006.54

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