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OPNFV: Upstream Headwaters to Full Deployment
This document discusses open source NFV and the use of open source projects to implement NFV. It notes that NFV requires integrating multiple open source projects, including OpenStack, Open vSwitch, DPDK, OpenDaylight, and others. It emphasizes engaging with upstream projects early and avoiding long-term forks, as maintaining forks of many projects is unsustainable. It also provides examples of using these projects together to implement NFV use cases and virtualized network functions.
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OPNFV: Upstream Headwaters to Full Deployment
- 1. Open Source NFV: UpstreamHeadwaters to Full Deployment Chris Wright Chief Technologist Red Hat, Inc.
- 2. Software is eatingthe world Marc Andreessen
- 3. Open Source Software iseating the world
- 4. World without OpenSource Software No Amazon No Google No eBay No PayPal No Yahoo! No Salesforce No Linkedin No Twitter No Facebook No Alibaba
- 5. IT Trend –Infrastructure CPU RAM DISK B U S NET SERVE R SERVERS STORAGE N E T W O R K DATACENTE R
- 6. IT Trend –Development
- 7. IT Trend –Business Commoditization Innovation
- 8. Modern IT Everybody wants… MassiveScale Agile Business ...to operate like large scale web companies
- 9.
- 10. Transportation FinanceRetail IT Infrastructure Media Software DisruptsTraditional Business
- 11. DISRUPT YOURSELF ORBE DISRUPTED
- 12.
- 13. Network Functions Virtualization(NFV) Network Functions are trapped in function specific HW Expensive to procure, integrate, deploy and operate Virtualize Network Functions (VNFs) Distribute VNFs on COTS-based IaaS – a Cloud Bring modern data center architecture to Telco network Steer traffic with SDN Traffic must traverse chain of functions in well-defined order
- 14. Why NFV? Reduce time-to-marketfor new services Improve business agility Compete with over-the-top web-based services Reduce CAPEX and OPEX costs
- 15. Virtual Network Functionas a Service Access Router WAN Optimization Firewall CG-NAT ADCIPS NG-Firewall DPI Monitoring QoS (ETSI #2) Network Functions
- 16. Example: VNFaaS Requires servicechaining support in OpenDaylight, OpenStack Neutron Enable Nova instances as nodes in a Neutron service chain SFC support in OpenDaylight Performance DPDK-accelerated Open vSwitch Reliability HA instances in Nova
- 17. Virtualized Mobile BaseStation -Multiple RAN technologies from multiple vendors to be consolidated on a single BS to improve utilization -BS virtualization can share resources among multiple logical RAN nodes from different systems. -C-RAN for efficient resource utilization among different physical BSs. -Baseband Unit (BBU) pool with high performance servers and real-time processing for signaling capacity (ETSI #4)
- 18. Example: C-RAN/vRAN Determinism Real-time patchesto KVM Performance DPDK accelerated Open vSwitch Reliability at scale HA instances in OpenStack Nova HA OpenStack Fault management and reporting IPv6 support – kernel through Nova, Neutron
- 19. NFV is notjust OpenStack
- 20. NFV is abroad set of Communities ETSI NFV driving industry trends, documenting functional requirements OPNFV integrating open source components, communicating needs upstream OpenStack abstraction/integration of virtual compute, network, storage libvirt, qemu/KVM, Ceph, OpenDaylight, Open vSwitch Underlying infrastructure management
- 21. Upstream first Successful changesshould be designed, written and proposed with upstream Maintaining significant out-of-tree patches across multiple projects is unsustainable
- 22. Upstream First Requires discipline(small changes, discussed first) Relationships (your priority might not be their priority) Many communities – not just OpenStack!
- 23. Open Source NFVSummary NFV requires a collection of multiple projects Use-cases require features which touch many components Maintaining forks of multiple projects is unsustainable Multiple service providers and NEPs have similar requirements Engaging with upstream projects early is required for success
- 24. Computing Hardware Storage Hardware Network Hardware Hardware resources Virtualisation Layer Virtualised Infrastructure Manager(s) VNF Manager(s) VNF2 OSS/BSS NFVI VNF 3VNF 1 Virtual Computing Virtual Storage Virtual Network EMS 2 EMS 3EMS 1 Service, VNF and Infrastructure Description Or-Vi Or-Vnfm Vi-Vnfm Os-Ma Se-Ma Ve-Vnfm Nf-Vi Vn-Nf Vl-Ha Orchestrator OpenStack Linux KVM OVS + DPDK OPNFV OpenDaylight
- 26. Open vSwitch (OVS) Multi-layervirtual switch Configuration managed w/ OVSDB Flow tables controlled by OpenFlow Provides connection between VMs on same host Provides uplink to physical network via host NIC Data fast path in-kernel Challenges kernel networking stack can be bottleneck 64 byte packet processing rates suffer Microflows vs. megaflows
- 27. DPDK Library for userspacepacket processing Directly manages NIC with userspace poll mode driver (PMD) Drivers for both physical and virtual NICs Polls driver NIC for packets, NIC DMAs directly to application buffers Platform specific optimizations Hugepages, NUMA and cacheline aware Batched packet processing CPU instructions (SSE4, AVX, etc)
- 28. OVS + DPDK Intelreports improved packet processing rates
- 29. NFV Relevant OpenSource Projects Project LOC Change rate Cost Linux 17,285,731 6000/mo $500M QEMU 902,252 500/mo $25M libvirt 566,977 250/mo $15M OpenDaylight 2,326,260 2000/mo $67M OpenStack 2,526,686 5000/mo $72M Open vSwitch 224,121 200/mo $5M DPDK 1,466,904 200/mo $42M http://www.openhub.net
- 30. Putting it alltogether OpenStack Compute KVM OVS+DPDK OpenStack Compute KVM OVS+DPDK OpenStack Compute KVM OVS+DPDK OpenDaylight Controller OpenStack Networking OpenFlow/OVSDB ML2_ODL
- 31. OPNFV Bootstrap/Getting Started withForeman/Quickstack
- 32. Quick Overview/Review Foreman Jenkins Khaleesi Genesis QuickStack Build Scheduler AnsibleTest Framework Host Provisioning Foreman Initiated Puppet Host Provisioning Configures OpenStack with Puppet
- 33. Current Deployment Single PODin Intel lab with donated hardware Baremetal hosts Foreman server and hosts running CentOS 7 Admin (management), Public and Private networks Minimum 2 servers per instance (more with HA) OpenDaylight integration with OpenStack
- 34. Topology Overview Foreman Server OpenStack Compute OpenStack Network/Control OpenDaylightAdminNetwork Private Network Public Network
- 35. Foreman Overview ForemanForeman ProxyPuppet Master DNS DHCP TFTP BMC Puppet CA Host Groups Host DB IP Management KickStart Templates Global Params Genesis QuickStack OpenStack OpenDaylight
- 36. Provisioning Work Flow PutHost into Build Mode with BMC Reboot Host PXE Boots using KickStart Template Foreman provides host associated OS install + Puppet Host Reboots into OS and starts Puppet Puppet applies Genesis -> ODL and Quickstack
- 37. Foreman/QuickStack – OPNFVArno Release OpenStack HA + OpenDaylight achieved Automatic deployment of OPNFV target system to virtual or baremetal setups Bootable Foreman/QuickStack ISO to assist in deployment Functest Integration in a OPNFV CI environment
- 38. OPNFV – OpenStackHA + Opendaylight Only installer to achieve O/S integration with ODL for Arno All O/S services required for OPNFV run in HA - https://wiki.opnfv.org/get_started/get_started_system_state Includes automatically provisioned external network for tenant access Uses Ceph clustering backend for Cinder
- 40. Foreman/QuickStack Automatic Deployment Usesa simple bash “deploy.sh” script to deploy an entire OpenStack HA + ODL setup (3 control nodes, x compute nodes) Minimal parameters needed – only need IPMI, mac address info of baremetal Network information and O/S parameters are dynamically determined at runtime Deploys to either baremetal or virtual machines
- 41. Automatic Deployment Process(baremetal) deploy.sh -base_config my_settings.yml Vagrantfile + OPNFV settings created for JumpHost Vagrant up installs Khaleesi + provisions JumpHost Khaleesi executes and installs Foreman pre-configured with OPNFV nodes Khaleesi issues API call to Foreman to rebuild and provision nodes using QuickStack puppet modules
- 42. Foreman/QuickStack ISO To beinstalled on the JumpHost as it's base OS Based on CentOS 7 Contains artifacts to be able to deploy after installation
- 43. CI + FunctestIntegration Foreman/QuickStack integrated into OPNFV CI environment OPNFV CI environment is controlled by Jenkins on Linux Foundation hardware Functest team triggers a set of tests to execute after a deploy: Vping VNF test ODL Integration test suite Tempest Smoke Tests Rally benchmark tests
- 44.