VoIP Header Compression on SDNs

Presented by

William A. Flanagan, President, Flanagan Consulting

About this talk

Software-defined networks introduce the central controller that finds paths for connections, on demand. The controller runs routing protocols "virtually," based on knowledge of device status and link state throughout an administrative domain. The 'product' of the path finding is the same for SDNs as for routed or switched networks: entries in forwarding tables in each device that define a path for a connection. Routing protocols (IS-IS for example) rely on header information to find the path and use the full address to identify a packet as part of a stream/connection. An SDN needs only a much smaller channel identifier on each packet, potentially increasing connection capacity by 10X and reducing latency.

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