CORD Presentation at ONS by Larry Peterson

Transcript

1. Central  Office  Re-­‐architected  
   as  a  Datacenter  (CORD)    
   Open Networking Lab
   In collaboration with AT&T
   – See Demo at the ONS Showcase –
   

   View Slide

2. Large number of complex facilities
   AT&T alone operates 4-5k Central Offices
   Each serves 10-100k residential, enterprise & mobile customers
   Evolved piecemeal over the past 40-50 years
   Source of huge CAPEX/OPEX costs
   Difficult to introduce new services
   Especially when compared to OTT cloud providers!
   Want the economies of commodity infrastructure
   Want the agility of scalable services
   Telco Central Office
   

   View Slide

3. CORD = SDN x NFV x Cloud
   SDN
   NFV
   Cloud
   Resource & Service Management
   Commodity Hardware + Software
   

   View Slide

4. Cloud
   NFV
   SDN
   CORD = SDN x NFV x Cloud
   Exploits both NFV and SDN
   Some VNFs run in VMs
   Some VNFs “run in” WhiteBox Switches
   Catalyzes function disaggregation
   Clean-slate approach to “function bundles”
   Exploits Cloud Best-Practices
   Services are the “unit of orchestration”
   Both “global” and “local” functionality
   

   View Slide

5. GPON
   (Access)
   ROADM
   (Core)
   Commodity Servers, Storage, Switches, and I/O
   CORD – Hardware Architecture
   PON
   OLT
   MACs
   Leaf-Spine
   Fabric
   PON
   OLT
   MACs
   48-port, 1RU, I/O Board
   1-­‐4                5-­‐8                  9-­‐12            13-­‐16          17-­‐20        21-­‐24      25-­‐28          29-­‐32          33-­‐36      37-­‐40            41-­‐44          45-­‐48
   Optical  10  GbE
    (Active)                              1-­‐12
   Optical  10  GbE
    (Standby)                        1-­‐12
   Back  Panel
   Front  Panel
   

   View Slide

6. CORD – Software Architecture
   XOS
   OpenStack
   Nova Keystone Neutron
   ONOS
   OVX
   Control
   Applications
   Services . . .
   . . .
   . . .
   . . .
   Virtual Networks and other Flow Rules
   (programmed into switching fabric)
   Virtual Machines
   (instantiated on
   commodity servers)
   Manage
   Services
   Manage Fabric and
   Host Control Apps
   Manage Virtual
   Infrastructure
   

   View Slide

7. Residence/Enterprise Central Office
   CPE   ONU   OLT  
   ETH  
   AGG   BNG  
   Legacy Central Office
   Acronyms
   •  CPE – Customer Premises Equipment
   •  OLT – Optical Line Termination
   •  BNG – Broadband Network Gateway
   Backbone  
   Core  
   Data  
   Center  
   

   View Slide

8. Residence/Enterprise
   Central Office
   ONU  
   CORD
   ACCaaS
   vBNG
   vBNG
   vOLT
   …
   Backbone  
   Core  
   Access-as-a-Service (ACCaaS) – Implemented by an ONOS control application (vOLT),
   where each tenant corresponds to a Subscriber VLAN.
   Logically centralized Service Controller
   Scales over a set of Service Instances
   Multi-Tenant with Tenant Abstraction
   

   View Slide

9. Residence/Enterprise
   Central Office
   ONU  
   CORD
   SUBaaS
   vBNG
   vBNG
   vCPE
   ACCaaS
   vBNG
   vBNG
   vOLT
   …
   Backbone  
   Core  
   Subscriber-as-a-Service (SUBaaS) – Implemented by a Docker container (vCPE),
   where each tenant corresponds to a Subscriber Bundle.
   

   View Slide

10. Residence/Enterprise
    Central Office
    ONU  
    CORD
    SUBaaS
    vBNG
    vBNG
    vCPE
    ACCaaS
    vBNG
    vBNG
    vOLT
    INTaaS
    vBNG
    vBNG
    vBNG
    …
    Backbone  
    Core  
    Internet-as-a-Service (INTaaS) – Implemented by an ONOS control application (vBNG),
    where each tenant corresponds to a Routable Subnet.
    

    View Slide

11. Residence/Enterprise
    Central Office
    ONU  
    CORD
    CDN
    vBNG
    vBNG
    Cache
    SUBaaS
    vBNG
    vBNG
    vCPE
    ACCaaS
    vBNG
    vBNG
    vOLT
    INTaaS
    vBNG
    vBNG
    vBNG
    …
    Backbone  
    Core  
    Content Distribution Network (CDN) – Implemented by a global caching hierarchy
    (including local caches), where each tenant corresponds to a Content Provider.
    

    View Slide

12. Software Architecture
    XOS
    ONOS
    vOLT
    ACCaaS SUBaaS INTaaS CDN
    vBNG
    OpenStack
    vCPE Cache
    

    View Slide

13. Service Composition Details
    vCPE
    vCPE
    vCPE
    vCPE
    vCPE
    vCPE
    vBNG
    vBNG
    vBNG
    vBNG
    vBNG
    vOLT
    HPC_Client vBNG
    vBNG
    Cache
    vCPE_WAN To Internet
    vCPE_LAN
    To Subscriber
    Set of VM Instances
    Connected to a Private
    Virtual Network
    

    View Slide

14. Service Composition Demo
    vBNG
    vBNG
    vBNG
    vCPE
    vCPE
    vCPE
    vCPE
    vCPE
    vCPE
    vBNG
    vBNG
    vOLT
    vBNG
    vBNG
    Cache
    Set of VM Instances
    Connected to a Private
    Virtual Network
    ONU  
    With AT&T
    Foundry
    NetGear
    (OpenWRT)
    PMC Sierra
    PON OLT MAC
    Minimal
    (See Next Talk)
    Dockerfile
    (Xerocole)
    Akamai
    Licensed CDN
    

    View Slide

15. NFV Orchestrator (NFVO)
    VNF Manager (VNFM)
    (XOS)
    Element Manager
    (Service Controller)
    Virtual Infrastructure Manager (VIM)
    (OpenStack, ONOS)
    VNFI
    VNF
    (Service Instance)
    ETSI NFV Architecture
    

    View Slide

16. Transform legacy C.O. into CORD
    Replace closed/proprietary hardware with “Commodity + Software”
    Orchestrate software as “Scalable Services”
    Leverage Open Source Software
    OpenStack – Provision virtual infrastructure
    ONOS (ON.Lab) – Host control apps and manage switching fabric
    XOS (ON.Lab) – Manage services with XaaS as unifying principle
    Path to Deployment
    Demonstrating Proof-of-Concept at ONS (Visit the Showcase)
    Complete CORD POD for Field Trials (December 2015)
    Summary
    

    View Slide

17. Join the journey @ onosproject.org
    

    View Slide