The Software Network Bowtie • • A common and elastic IP edge supporting all kinds of access • Tightly integrated with service platforms • Based on a software-controlled, high-capacity transport core A key element of 5 G architecture • Provide a user-centric connectivity experience DISCOVER, DISRUPT, DELIVER
Redesigning Network Segments Distributed Data Plane Centralized Control Plane REGIONAL DATA CENTRES LOCAL Po. Ps v CDN Service Domain P-CSCF Network Domain Video SDP CSFB v NGIN Security IMS SRVCC M/SMSC EPC BRAS PE DHCP PCRF DPI CG-NAT GGSN DNS UDB HW and SW decoupling Infrastructure HW and SW decoupling OS + Hyper. Visor COTS HW MPLS/SDN/Optical Networks Po. Ps and datacentres intra- and inter-communications will be critical to guarantee network service elasticity and network plasticity DISCOVER, DISRUPT, DELIVER
Finding the Proper Balance between NFV & SDN Service-layer SDN Simplify management, closing the gap between business logic and operation BNG CONTROL CG-NAT POOL MGMT NFV § § Pool admin Session UPn. P mgmt IPv 4 / IPv 6 TR-069 DHCP Separation of HW and SW No vertical integration - HW vendor ≠ SW vendor ≠ Mgmt vendor § Once network elements are SW-based, HW can be managed as a pool of resources NAT ctrl. Infrastructural SDN Virtual backplane § Separation of control and data plane § Easy orchestration with SW domain DISCOVER, DISRUPT, DELIVER