internetISPPSTNCentrexISPICPIPPSTNIPATMNGNiNETiMananger2000QuidwayMAIP1iManagerTMN2000SiSiSiSi112full/partialmeshedinternetDualhoming3456ISPKeeperNATGREVPN1NE80NE8080G128G256GOC-3OC-12OC-48POSATMGEFE2.5GIP/MPLSNE804POS2.5GGEPOS622GE/FEInternetISP2ASISPEBGPIBGPAS64512-65535IGPOSPFIS-ISMPLS/VPNOSPFarea0area1area2......NSSAType7-LSAType5-LSAASEBGPIGPOSPFBGPDefault-informationoringinateAS22IP2QoSNE16S801688501//Intranet8016/NE16+3526+24038016+NE16+NE08+3680+24033IntranetOSPFArea0NE16/S8016POS155ATMPVCGEn*64KNE08NE08n*64KGEn*64K3526GE36803PVCCE1n*64KNE16NetStream*CE1ISPkeeper+ACL+VLANNE163internetLANxDSLVODInternet12Internet8016/NE16+5200+2403BAS8016/NE16+5200+5100+RTUxDSLPSTNMA5200VLANPPPOEMA5200VLANVLAN-IDDHCP-RelayIPMACVLAN-IDMACIPMA5200PPPOEMA5200PPPOEM5200NE161MA5200MA5100ADSLBASBASADSLPPPOEMA5200PPPMA5200QOSMA520096FEInternetPortal4VOD100MHUBPCIDT......10Base_THUBPCIDT............10Base_TMA52002403AAAWebVODDHCP/45200N164NE16NAT4/201+IPHotel1IPPhone201InternetBAS10MIPPhone201iSN8850+A8010Expert+CentrexiSN8850+5200+2403110MPPPoEtPPPoEiSNiSNIPInternetPPPISPIPA8010ExpertiNETiSN8850ATMIP201IPIP5200+5100+RTUxDSLiSN8850iNET10M/100MFEFXOC-3cATMOC-3cPOSOC-12cPOSGEOC-3cC&C08MPLS/VPNQOSNATVLANIDIPiSN8850NE80OSPF0NSSA885052008010DHCP8850NATInternetwebmailDHCPWebMailOfficeIDCMPLS/VPNMPLS/VPNMPLSVPNPPPDLCIPVCMPLS/VPNMPLS/VPNAS3-4%QOSMPLSIPQosIPMPLS/VPN5CEPEPCEMPLSPMPLSPEPEMPLS/VPNCEPEIGPPEPEIBGPsite1site2VPNsiteCE1PE1PE1PE2VPNLSPPE2PE2PE2CECE2site2site1MPLSsite1site2VPNPEsiteRDIPv412VRFPE1PE2MP-BGPBGPVRF5MPLS/VPNIETFPEASVPNNE80MPLS/VPNISPN16/S8016E1/CE1PVCE3POS/CPOSQOSMPLSMA520096FEBAS5200+2403xDSL5200+5100+2403PSTNHONETDHCPPPPoE