China Unicom s perspective on CORD
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1 China Unicom s perspective on CORD Dr. Xiongyan Tang, China Unicom 29 th July, 2016
2 Central Office today and tomorrow Future: DC-Centric Network on SDN/NFV Today: TradiMonal Network DDF PSTN DSLAM BRAS Central Office OLT ODF So&/IMS China Unicom l >2500 COs for PSTN l With the development of FTTH, all PSTN es will be out of services l Some COs reconstructed as edge DCs l Edge cloud for both telecom NFV and public/ private cloud services 2
3 What are in NG-CO (or CORD)? APP 1 APP 2 APP N Openstack Orchestrator Controller VNF R-CORD volt, vbng, vcdn, vsg, vrouter E-CORD Access Devices (OLT) Leaf-Spine Fabric Spine Spine Spine Spine vcpe, vrouter, vdpi, vlb, vfw M-CORD Leaf Leaf Leaf Leaf Leaf Leaf WAN Devices vbbu, vpgw, vsgw, vmme VNF1 Controller APP1 Public cloud IP/ OpMcal VNF2 OpenStack APP2 Private cloud VNF3 Orchestrator APP3 Hybrid cloud 3
4 China Unicom started Central Office re-architecture DC 1 Public cloud service VAS vbng OpenStack Controller VxLAN/ MAN Applica[ons of today: Public cloud services and private cloud of enterprise customers DC 3 Cloud service Which CO is suited for re-architected as DC? Ø height>3.5m Ø Weight bearing>=6kn/m 2 Ø Size>200m 2 Ø Enough electric supply Ø Good transmission network DC 2 Resource pool Using SDN and VxLAN technologies to integrate mul[ple PSTN COs in the MAN area into one logical resource pool 4
5 Our R&D activities: white box and ONOS White box in DC Super controller for mulm DCs Private/public cloud services OpenStack VAS APP BSS/OSS Super controller(onos) Openstack Controller (ODL-based) Openstack Controller (ONOS-based) l HW and SW disaggregation l OpenFlow 1.3 l EVPN & VxLAN l IPoE l IPv6 l Cloud service l ONOS-based super controller ü SB: vendor-specific DC controllers ü NB: OpenStack neuron Cloud service 5
6 CORD experiment platform of China Unicom PC MAN (white box) CPE (white box) Internet DC spine white box) DC leaf (white box) DC Radius Server vbng DC leaf (white box) vcpe Controller OpenStack White box CPE MAN DC spine/leaf Commodity Server OpenStack vcpe radius vbras Controller 6
7 China Unicom s customers: C E O R-CORD and M-CORD for Consumer Internet: 260million+ mobile users 75million+ FBB Enterprises n OA and ICT n Leased Line n VPN E-CORD for Business Internet Consumers: R+M n Voice n MBB+FBB n Video OTT Providers n IDC n DCI n QoS Carrier s Network Enterprises and OTTs are the focuses of E-CORD projects 7
8 Today s requirements of enterprise customers n Quick response to requirement changes n Automa[c service provisioning n Self-care, self-control n Easy to maintenance n Rapid crea[on of new services n Cloud and networking convergence n Innova[ve ICT services security services; video services; cloud service; IoT; n Lower cost n 8
9 E-CORD architecture of China Unicom:CORD+WAN CU APP 3 rd APP Cloud + Network + APP Orchestrator (ECORD-O) WAN Controller DC Controller EMS/NMS Cloud OS FW VAS DCN Controller DC DCI Site 1 Thin CPE Access Network VCPE SFF vvas Cloud OS Site 2 Access Network Service Chain WAN FW VAS DCN Controller DC Thin CPE Software Orchestration ECORD-O Network Controller ONOS VNF Manager VNFM vcpe vvas vfw, vlb Platform Cloud OS Hardware OTN/WDM/ROADM: SDN Transport CE/PE SDN Router LSW/TOR SDN Switch Server: Commodity Servers 9
10 E-CORD use cases Case1 Case2 Case3 Case4 L2/L3 VPN on demand Cloud access and Cloud-network integration Elastic WAN transport for DCI Virtual Valueadded Services provision site to site site to DC DC to DC VAS Virtual Networks as a Service 10
11 R&D work for E-CORD in China Unicom MulM Tenant Self services for Enterprise Cloud access Cloud and tunnel convergence Cloud Based VAS and LSO Self monitor, management ECORD-O Cloud based VAS EMS Virtual QoS probe vcpe vvas WAN+DC Centralized control OpenStack / Docker Main R&D work for E-CORD ECORD orchestrator (ECORD-O) Super controller for DC and WAN Transport and IP backbone orchestrator vcpe for enterprises VTN DC Fabric Control VxLAN EVPN ONOS (onos-fabric, onos-cord) vrouter Elas[c Op[cal Network 11
12 M-CORD in China Unicom n Mobile network of today n M-CORD for 5G 2G BTS BSC Gb Iu SGSN BBU/EPC Control ApplicaMon BBU MME SGW-C PGW-C Control Plaform PCRF WCDMA NodeB LTE enodeb WLan AP RNC MME S10 S1-MME S1-U AC S3 S11 S4 S GW S6a S6d SAE GW S5/8 Wlan 接入网关 P GW HSS PCRF S9 Gx Rx AF SGi Internet CG Remote radio unit (RRU) Virtualized BBU Virtualized BBU Virtualized BBU Disaggregated GW (SGW-D) SGW-D SGW-D Disaggregated GW (PGW-D) Control /data plane Disaggregated EPC Internet l CORD plaform l vbbu l vepg l vims 12
13 Roadmap of China Unicom CORD project 2016 Q Q Q Q4 13 Scenario and architecture design, SW/HW R&D SW/HW Text R&D in here and CORD Platform Integration Text in here Single sit CORD field trial and test Multi sites CORD field trial and commercial preparation 13
14 Main challenges for us Open source SW and white box HW not yet become commercial products, just for POC Legacy network and vendor-locked How to coexist and integrate with vendordepend legacy network elements Integration and operation Lack of integration abilities and operation experience for open source and white box 14 14
15 Thank You! July, 2016
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