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Thursday, October 29 • 11:00am - 11:40am
HP- Carrier-Grade Solution for Dynamic Service Function Chaining Using OpenDaylight

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Subscriber awareness is not a new concept but providing subscriber-level information to every function in a network has been difficult to implement in traditional networks. However, NFV/SDN framework has made it possible to obtain this information more easily. Subscriber awareness in the network layer interconnecting virtual network elements benefits operators by:

  • Providing unprecedented visibility into the network across elements interconnected using the SDN fabric

  • Enabling delivery of personalized services by leveraging functions in the network

  • Improving security and diagnostics by identifying and isolating subscriber flows as needed

To understand these benefits it is essential to look at this in a context of particular use cases. Subscriber awareness for service function chaining (SFC) refers to the ability to associate traffic with a customer while making appropriate, traffic-related networking decisions. SFC has gained a lot of interest due to network virtualization and it addresses networking challenges created when middle-boxes like firewalls, spam filters, DPI elements, etc., are virtualized.

An important example of SFC in operator networks is the Virtual SGi/Gi-LAN use case. SGi/Gi interface connects the mobile packet core and packet data networks (PDN) which are typically implemented on racks in middle-boxes, which can be hard to manage, update and modify. SFC with subscriber awareness creates a programmable Gi-LAN by:

  • Dynamically allocating network resources on a per subscriber/user basis

  • Automatically provisioning traffic forwarding path through the service chain

  • Supporting elasticity of functions

  • Providing capabilities, such as load balancing, high availability, and monitoring, eliminate the need for these functions duplicated in each VNF

This session will dive deeper into how OpenDaylight-based SFC is a carrier-grade solution and can provide these benefits to the mobile operators.


avatar for Shlomi Alfasi

Shlomi Alfasi

Sr. Software Manager, HP
Shlomi Alfasi is senior software manager at ConteXtream business unit in HP where he is responsible for the development of network management & GUI applications for the ContexNet (Carrier-SDN) product line. He is also a key contributor to OpenDayLight focusing on the Service Function... Read More →

Thursday October 29, 2015 11:00am - 11:40am JST
Tempyo (New Takanawa)

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