CORD Technical Overview
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1 CORD Technical Overview Larry Peterson Open Networking Lab #OpenCORD
2 What is CORD? CORD is a Vision A common goal the open goal the source community is working is working towards towards Start with Business Case à Reduce to Design Requirements CORD is an Architecture A collec;on of abstrac;ons and interfaces Start with an Organizing Principleà Iterate-and-Refine CORD is a Reference ImplementaCon An integrated system built from concrete components Make Technology Choices à Be More Inclusive with Time
3 CORD Vision Business Case Large number of complex facilices AT&T alone operates 4-5k Central Offices Each serves k residencal, enterprise & mobile customers Evolved piecemeal over the past years Source of huge CAPEX/OPEX costs Difficult to introduce new services Especially when compared to OTT cloud providers!
4 CORD Vision Business Case Economies of a datacenter Infrastructure built with a few commodity building blocks using open source software and white-box switches Agility of a cloud provider Software platforms that enable rapid creation of new services From Access-as-a-Service to Software-as-a-Service Both Bundled Legacy and Disaggregated Greenfield
5 CORD Vision Requirements Economies of Commodity Hardware Architect to achieve the performance and reliability of purpose-built hardware on commodity servers and white-box. Enable InnovaCve Services Architect to support the full range of services Access-as-a-Service and SoKware-as-a-Service Data Plane (NFV) and Control Plane (SDN) Bundled Legacy and Disaggregated Greenfield Trusted Operator-Defined and Untrusted 3 rd Party
6 CORD Vision Requirements Extensible and Controllable Architect a Northbound Interface that allows operators to configure, control, and extend a deployment. MulC-Domain Security Architect to minimize trusted code base, mediate trust, and support the principle of least privilege. OperaConal Robustness Architect to minimize service disrup;on in the face of transient and par;al failures.
7 CORD Architecture Open Source Software XaaS Commodity Hardware Everything-as-a-Service
8 CORD Architecture Organizing Principle Cloud XaaS SDN NFV
9 CORD Architecture Organizing Principle Cloud Extends the agility of micro-services to the access network XaaS SDN Interconnects VNFs and is a source of innovative new VNFs NFV Supports legacy VNFs and pushes the limits of disaggregation
10 CORD Architecture Hardware AT&T Open GPON 48-port, 1RU, I/O Box PON OLT MACs PON OLT MACs Commodity Servers, Storage, Switches, and I/O ROADM (Core) GPON (Access) Leaf-Spine Fabric
11 CORD Architecture Software CORD Residential Subscribers volt OpenStack ONOS Monitoring vcdn Everything-as-a-Service (XaaS)
12 Disaggregating the C.O. Residence Central Office volt CPE ONU OLT ETH AGG BNG Backbone Network CPE Customer Premises Equipment OLT Optical Line Termination BNG Broadband Network Gateway
13 Disaggregation Residence Central Office volt CPE ONU OLT ETH AGG BNG Backbone Network Switching Fabric CPE Customer Premises Equipment OLT Optical Line Termination BNG Broadband Network Gateway
14 End-to-End Path vbng vbng volt LAN-Side WAN-Side vbng vbng vcdn
15 End-to-End Path vbng vbng volt ONU vbng vbng vcdn
16 Services are Multi-Tenant Residential Subscribers volt Subscriber VLAN Subscriber Bundle Basic Connectivity Parental Control Firewall Routable Address Service is an over-loaded term Consumer Service Multi-Tenant Cloud Service Tenant is an over-loaded term Business Unit tenant of infrastructure User tenant of cloud service Service A tenant of Service B
17 CORD Architecture Software CORD Residential Subscribers volt OpenStack ONOS Monitoring vcdn Everything-as-a-Service (XaaS)
18 CORD Architecture Models = (VM Container Container-in-VM) Slice = (s[ ] + Networks[ ]) Service = ( + Slices[ ]) Subscriber volt Service Graph = (Tenants[ ]+ Services[ ] + Dependencies[ ])
19 Data Plane Services Tenant 1 Tenant N Tenant 1 Tenant N Service Service Service Service Compute... Compute Compute... Compute (Compute = Container) vcdn (Compute = VM)
20 Control Plane Services T1 T2.. TN volt T1 T2.. TN volt ONOS
21 Services as Tenants volt Subscriber 1 Service Service Service Subscriber 2 Service Service Service Subscriber N Service Service Service Tenant 1 Tenant 2 Tenant N Syndicate Service Service Service vcdn Service
22 CORD Architecture Interfaces Design Time ConfiguraCon Interface On-Board Services and Configure Service Graph RunCme Control Interface Provision and Scale Services InstanCate and Manage Service s Monitor Service Performance and Behavior
23 CORD Architecture Interfaces CORD REST API (also TOSCA) Residential Subscribers volt OpenStack ONOS Monitoring vcdn
24 On-Boarding Services REST API CORD = Data Model (Authoritative State) Synchronizer (Activates the State) On-Boarding a Service Backend Resources (Operational State)
25 RunCme Control Subscriber API GET Response: { "humanreadablename": John Doe" "id": 1 "features": { "cdn": true "uplink_speed": "downlink_speed": "uverse": true "status": "enabled" } "identity": { "account_num": "123" } - } "related": { "instance_name": "mysite_vcpe" "vsg_id": 4 "c_tag": "432" "instance_id": 1 "wan_container_ip": null "volt_id": 3 "s_tag": "222" }
26 RunCme Control API Endpoints../api/tenant/cord/subscriber../api/tenant/cord/enterprise../api/core/slices../api/core/nodes../api/core/instances../api/core/services../api/services/hpc../api/services/vsg../api/services/onos Also a TOSCA-based interface Primarily used at design Cme A Yang-based interface is in progress
27 CORD Reference Implementation Hardware Blueprint Bill of Materials OCP Servers OCP Switches OCP Access Blades Assembly Instructions Testing Infrastructure Ciena and Radisys to provide turnkey CORD PODS CORD POD An open virtualized service delivery platform that provides cloud economies and agility. From Access-as-a-Service to Software-as-a-Service. Configured for Different Domains: Residential, Enterprise, Mobile Open Source Software Core Components OpenStack Docker ONOS XOS Access Services R: volt,, E: voam, vce, M: vbbu, vpgw, Other Services Monitoring
28 CORD POD Hardware Spine-1 Spine-2 Leaf-1 Leaf-3 Compute-1 Compute-3 Leaf-2 Leaf-4 Compute-2 Compute-4 Internet Router Home Router OLT-1 OLT-2 40Gbps 3x40Gbps 1Gbps Management Network
29 CORD POD Software Stack Accessas-a-Service Subscriberas-a-Service Internetas-a-Service CDN Monitoringas-a-Service XOS Ceilometer vcdn OpenStack / Docker VTN Fabric Control Multicast Control volt ONOS
30 CORD Field Trial Customer Care Portal Operator Portal CORD Residential Subscribers volt Access the Internet Stream (Cached) Video Watch TV OpenStack ONOS Spine-1 Monitoring vcdn Spine-2 IPTV Leaf-1 Leaf-2 Leaf-3 Leaf-4 Compute-1 Compute-2 Laptop NetGear GPON ONT Compute-3 OLT-1 OLT-2 Compute-4
31 Domains of Use Residen+al volt,,, vcdn Mobile vbbu. vmme, W, vpgw, vcdn Enterprise vcarrierethernet, voam, vwanex, vids CORD Metro Ethernet BBUs PON OLTs ROADM (Core)
32 CORD Extensible Platform Residential Subscribers volt vcdn
33 CORD Extensible Platform Residential Subscribers vg.fast volt vcdn Mobile Subscribers vbbu W Enterprise Customers v10gpon vcpe vce
34 Summary CORD Provides Cloud Economies and Agility Fully Exploits Micro-Services (Access-as-a-Service) Fully Exploits DisaggregaCon (volt à à ) Fully Exploits SDN (overlay, underlay, services) CORD Assembles services from building block components Exports a unified interface to a colleccon of services Operators specify service graph (configuracon-cme interface) Operators and customers control services (runcme interface)
35 More InformaCon hbp://opencord.org hbps://wiki.opencord.org Community Workspace for Domains-of-Use CORD POD Assembly InstrucCons (build your own POD) Links to Open Source Tools (help develop CORD) Project Governance (parccipate in Linux FoundaCon project)
36 VTN and Service Composition vbbu VNF 1 VNF 2 volt vce
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