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BGP – an SDN federation interface?

Within the IETF NVO3 workgroup, they are discussing to use an existing protocol (MP-BGP)  for the federation of NVA (Network Virtualization Authorities or controllers, so essentially communication between overlay controller domains). This is not strange as MP-BGP is also used for this within EVPN and IPVPN over MPLS standards. In

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Google gives insight in its DC Network

Google presented some material at ACM Sigcomm that gives us some insight into the setup of its data center networking technologies.