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8.28 usecase subcommittee meeting.pptx
Description:
This use case is mainly used for the Enterprise Service Provider (SP) to
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provide the
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Enterprise2DC service to the tenants both
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efficiently and safelyby deploying enterprise-based vCPE. Enterprise users could receive high-quality and cheap cloud service based on the operator’s BSS Portal and ONAP. And in here, ONAP is used to instantiate and operate the required vCPE in the access network as a cloud service.
The Operator should first complete provisioning of the Network Infrastructure, and then setup the overlay network connection . There are three alternative ways to set up overlay connection between vCPE and the firewall on the edge of TIC-Core,including VxLAN,IPSec and MPLS.
Steps for configuring underlay connection including:
l The Operator: create MPLS L2VPN and L3VPN in the IPRAN Network
l The Operator: create MPLS VPN in the WAN Network
l The Operator: connect the links through VLAN
For the application scenarios of E-vCPE use case, it supports site-to-site, site-to-DC and site-to-Internet services to the customers.It not only provides the solution of ThinCPE and vCPE in the edge-DC but also CPE solution as an alternative choice for enterprise customer. The solution of vCPE in the edge-DC is an actual deployment scheme which can provide more value-added service in DC and make it easy for access control.
In this case, ONAP will
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present its function to instantiate, configure and manage
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both the overlay connection between site-to-site/DC/Internet and VNFs .There are three alternative ways to set up overlay connection,including VxLAN,IPSec and MPLS.It is a stretch goal to fulfill traffic scheduling in WAN network by means of path calculation and load balancing.
Enterprise vCPE Scenario diagram as shown below:
Users and Benefit:
Enterprise customers would benefit from cloud services and automation either on-premises or in the cloud depending on their branch configurations. This will free the enterprise users from the installation, local configuration and administration of LAN/NAT/WAN/VPN networking.
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The centralized traffic scheduling and optimization of backbone network is the embodiment of SDN concept in backbone network, it will help operators enhance the management ability of operation and maintenance and improve the efficiency of resource utilization.
Use Case Flows
1.site2DC
ThinCPE's request to get its own IP address for its WAN interface
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ONAP collect link utilization and the actual traffic flows in real-time. when the flow reach the WAN side, the ONAP will conduct the optimal path calculation through configuring MPLS TE tunnels, so as to realize the function of traffic scheduling.
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site2site?choice1?vCPE?
site2site?choice1?vCPE?
VNF:
Cloud Location | VNFs | Code / Vendor |
Edge | vFW | |
vCPE | ||
vDHCP |
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