城域網(wǎng)建設(shè)技術(shù)交流(編輯修改稿)
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【文章內(nèi)容簡(jiǎn)介】 not placed in any VPN routing/forwarding instance (VRF) (traditional Inter access setup).? Packet leaking between a VRF and the global table is achieved through special configuration mands.Presentation_ID 169。 2023, Cisco Systems, Inc. All rights reserved. 30Inter Access Through Packet Leaking?Benefits:This method can be implemented over any WAN or LAN media.?Drawbacks:Inter and VPN traffic is mixed over the same link。 security issues arise.More plex Inter connectivity options (for example, full Inter routing for customers) are hard to implement.Presentation_ID 169。 2023, Cisco Systems, Inc. All rights reserved. 31Packet Leaking in ActionPEPE InterSite1PEIGSite2Network Serial0VPNA VRF(global)Site1 routesSite2 routesGlobal Table and FIB...IP packetD=Label = 3 IP packetD=IP packetD=Presentation_ID 169。 2023, Cisco Systems, Inc. All rights reserved. 32Inter Access Through a Dedicated Subinterface—Traffic FlowPEPESite1PEIGSite2Network CE routing tableSite2 routes Inter routes IP packetD=PE Global TableInter routes , Label=3 InterLabel = 3 IP packetD=IP packetD=Presentation_ID 169。 2023, Cisco Systems, Inc. All rights reserved. 33互聯(lián)網(wǎng)A用戶 1 A用戶 2虛擬專用網(wǎng)路由互聯(lián)網(wǎng)訪問(wèn)路由增加虛擬專用網(wǎng) B的部分路由互聯(lián)網(wǎng)訪問(wèn)B用戶 1增加虛擬專用網(wǎng) A的部分路由用戶端設(shè)備 用戶端設(shè)備用戶端設(shè)備在提供企業(yè)內(nèi)聯(lián)網(wǎng)，互聯(lián)網(wǎng)訪問(wèn)業(yè)在提供企業(yè)內(nèi)聯(lián)網(wǎng)，互聯(lián)網(wǎng)訪問(wèn)業(yè)務(wù)基礎(chǔ)上，利用同一線路，統(tǒng)一的務(wù)基礎(chǔ)上，利用同一線路，統(tǒng)一的IP寬帶網(wǎng)絡(luò)平臺(tái)提供企業(yè)外聯(lián)網(wǎng)業(yè)寬帶網(wǎng)絡(luò)平臺(tái)提供企業(yè)外聯(lián)網(wǎng)業(yè)務(wù)。務(wù)。IP寬帶網(wǎng)絡(luò)平臺(tái)寬帶網(wǎng)絡(luò)平臺(tái)MPLS VPN 企業(yè)外聯(lián)網(wǎng)－外部網(wǎng)互連Presentation_ID 169。 2023, Cisco Systems, Inc. All rights reserved. 34運(yùn)營(yíng)商之運(yùn)營(yíng)商業(yè)務(wù)Presentation_ID 169。 2023, Cisco Systems, Inc. All rights reserved. 35運(yùn)營(yíng)商之運(yùn)營(yíng)商CustomerISP 不運(yùn)行 MPLSCRNETPE1PE2CE1CE2中經(jīng)網(wǎng) 沈陽(yáng) IGP中經(jīng)網(wǎng) 北京 IGP ISP customersASBR1ASBR2ISP customersNetwork = NIPDest=NIPDest=N 1 IPDest=NIPDest=NIPDest=NIPDest=N 2 IPDest=NIPDest=N 1 6 Presentation_ID 169。 2023, Cisco Systems, Inc. All rights reserved. 36Carrier BackbonePE1PE2CE1CE2ISP customersASBR1ASBR2ISP customersNetwork = NIPDest=NIPDest=NIPDest=NIPDest=N 3 IPDest=N 2 IPDest=N 1 6 IPDest=N 1 IPDest=N 15 IPDest=N 7 運(yùn)營(yíng)商之運(yùn)營(yíng)商CustomerISP 運(yùn)行 MPLS中竟網(wǎng) 沈陽(yáng) IGP中經(jīng)網(wǎng) 北京 IGPPresentation_ID 169。 2023, Cisco Systems, Inc. All rights reserved. 37運(yùn)營(yíng)商之運(yùn)營(yíng)商CustomerISP 運(yùn)行 MPLSVPNCarrier BackbonePE1PE2CE1CE2IPE1IPE2Network = NIPDest=NIPDest=NIPDest=N 12 3 IPDest=N 12 2 IPDest=N 1 6 12 IPDest=N 1 12 IPDest=N 25 12 IPDest=N 7 12 IPDest=N 12 中竟網(wǎng) 沈陽(yáng) IGP中經(jīng)網(wǎng) 北京 IGPPresentation_ID 169。 2023, Cisco Systems, Inc. All rights reserved. 38網(wǎng)際 MPLS VPN 業(yè)務(wù)Presentation_ID 169。 2023, Cisco Systems, Inc. All rights reserved. 39CATV/CNCCRNET網(wǎng)際 MPLS VPNPE1PEASBR1CE1CE2P1Network = NPEASBR2PE2P2IPDest=NIPDest=N 20 8 IPDest=N 20 IPDest=N 12 IPDest=N 1 6 IPDest=N 1 IPDest=NPresentation_ID 169。 2023, Cisco Systems, Inc. All rights reserved. 40A用戶 1A用戶 2虛擬專用網(wǎng) A路由互聯(lián)網(wǎng)訪問(wèn)路由虛擬專用網(wǎng) B的部分路由增加話音 VPN 的部分路由B用戶 1IP電話 通道V網(wǎng)關(guān)PSTN/GSM 國(guó)家級(jí)長(zhǎng)途 VOIP智能軟交換關(guān)守IP電話 傳統(tǒng)電話（ 鐵通號(hào)碼） （ 鐵通號(hào)碼）互聯(lián)網(wǎng)互聯(lián)網(wǎng)訪問(wèn)電視會(huì)議用戶端設(shè)備在提供企業(yè)內(nèi)聯(lián)網(wǎng)，互聯(lián)網(wǎng)在提供企業(yè)內(nèi)聯(lián)網(wǎng)，互聯(lián)網(wǎng)訪問(wèn)業(yè)務(wù)，企業(yè)外聯(lián)網(wǎng)業(yè)務(wù)訪問(wèn)業(yè)務(wù)，企業(yè)外聯(lián)網(wǎng)業(yè)務(wù)基礎(chǔ)上，利用同一線路，統(tǒng)基礎(chǔ)上，
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