New trends in IT. Network Functions Virtualization (NFV) & Software Defined-WAN
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1 New trends in IT Network Functions Virtualization (NFV) & Software Defined-WAN 2017 AT&T Intellectual Property. All rights reserved. AT&T, Globe logo, Mobilizing Your World and DIRECTV are registered trademarks and service marks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks are the property of their respective owners.
2 Virtualization & Software Defined Network
3 AT&T keynote at Open Network Summit By 2020, we plan to virtualize and control over 75 percent of our network using this new softwaredefined architecture to meet the growing demands of data and video-hungry users. John 3 Donovan, CEO AT&T Communications
4 Network Demand 4
5 Traditional Network Device App App App Operating System Specialized Packet Forwarding Hardware 5 closed & complex vendor specific architecture expensive network operation
6 Router Architecture Adjacent Router Control plane OSPF Router Management plane Configuration / CLI / GUI Control plane OSPF Neighbor table Link state database IP routing table Data plane Data plane Forwarding table
7 Software Defined Network (SDN) concepts Application Plane Control Plane Data Plane Application Application API Smart Controller API Fast Switches Open Simple Scalable Secure Agile More Reliable Flexible Cost effective
8 transform closed architecture independent, distributed systems and applications App App... App network operators Operating System Specialized Packet Forwarding Hardware
9 into SDN Application Layer Control Layer Business APP Business APP APIs Network OS Network OS Business APP network users Infrastructure Layer Open protocol Open interface Pkt. Forwarding HW whitebox switch
10 OpenFlow Flow Table entries Open Flow Controller rule action stats Flow Table Entry OF FT OF FT OpenFlow Flow Table State Info X OF FT counters 1. forward frame to port 2. send to controller 3. process 4. drop Data Frame port Ethernet IP transport whitebox switch
11 Network Functions Router WAN Accelerator Firewall Switch Session Border Controller CDN 11
12 Network Functions vendors HW functions
13 Virtualization concepts HW vs. SW virtualization in commodity HW cloud vs. premise based HW SW SW SW VM VM VM AT&T Integrated cloud AIC SW x86 server AT&T FlexWare device
14 NFV - Network Functions Virtualization download App from App store download VNF from Catalogue on Demand Smartphone FlexWare AIC
15 NFV at AT&T vendors SW commodity HW AT&T Services vrouter vfw vwanx vwlc vhnf vdns v.. AT&T Integrated Cloud AT&T FlexWare device AT&T NoD AT&T FlexWare
16 Virtualized Non-virtualized Presentation title here edit on Slide Master Transformation to NFV Data Center security Customer Premises hosting DNS Router LAN FW WANX AT&T Integrated Cloud FlexWare device
17 AT&T FlexWare device
18 AT&T Presentation title here edit FlexWare on Slide Master device architecture Customer Software Layer vrouter VNF2 VNFX PnP Client Platform Software Layer Linux/ KVM/Orchestration APIs Software Switch Hardware Layer DDR X86 CPU GigE Chipset (SR-IOV) L2/L2 HW Switch ( Merchant Silicon e.g. Broadcom) ChipSet Ex (c602) SATA SSD 8x 1GE LAN Ports 2 Fiber/Copper WAN Ports LTE 2x USB Ports
19 LAN1 LAN2 LAN3 LAN4 LAN5 LAN6 LAN7 LAN8 VLANID VLANID WAN1 WAN2 LAN WAN2 WAN1 LAN Service Presentation title here edit on Slide Chaining Master (inside AT&T FlexWare device) FlexWare Device vrouter _INTERNET_ IVI IVI VPN Name IVI IVI vfw vwanx Internet INTERNAL WAN INTERNAL LAN WAN1 L2-vswitch MPLS WAN2 VLANID VPN LAN Conn. FW LAN Conn. PassThrough Conn. PREMISESROUTER private LAN untrusted LAN Guest LAN / DMZ
20 YANG Presentation title here edit + on NetConf Slide Master (configuration of NFV) Application Layer APIs Service Models Service Model Instance Service Model Model Instance Instance Service Service Model Model Instance Instance Service Service Model Model Instance Instance Yang Control Layer Network Models Logical Network Model Device Configurations Device Model Instance Device Model Instance Device Model Instance Device Model Instance Device Model Instance Netconf Infrastructure Layer Config YANG - abstraction between customer function and network implementation. NETCONF is a standard device configurations protocol Control plane remains in forwarding layer, accommodates distributed networks
21 AT&T ECOMP Network OS Enhanced Control, Orchestration, Management & Policy ECOMP
22 ECOMP (ONAP)
23 SD-WAN Presentation title here edit on Slide Master (Software Defined WAN) is a specific application of software-defined networking (SDN) technology applied to WAN connections, which are used to connect enterprise networks including branch offices and data centers over large geographic distances 23
24 DMPO Presentation title here edit on Dynamic Slide Master Multipath Optimization automatic link monitoring, autodetection of provider and auto-configuration of link characteristics, routing and QOS settings Ondemand, Per-packet link steering based on the measured performance metric, intelligent application learning, business priority of the application, and link cost Delivers sub-second protection to improve application availability Remediates link degradation through forward error correction, activating jitter buffering and synthetic packet production. 24
25 Internet-based Presentation title here edit on Slide Master SD-WAN 25
26 SD-WAN Presentation title here edit on Slide over Master FlexWare Virtual Edge running on AT&T FlexWare device Virtual Edge running on AT&T FlexWare device VeloCloud Orchestrator running on AT&T AIC Virtual Gateway running on AT&T AIC Virtual Gateway running on AT&T AIC
27 SD-WAN Presentation title here edit on Slide Master orchestrator 27
28
Phil Dredger Global Lead Network Services Cloud Platform and ITO DXC. Presentation title here edit on Slide Master
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