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  • GNODE is composed of two software switches controlled by SONA and vRouter
  • br-int which is controlled by SONA, OpenstackRouting module specifically, performs NAT and PAT for N-S packets
  • br-router which is controlled by vRouter makes the GNODE as a legacy router and it performs forwarding packets to right port

Detailed Architecture

  • Scalable GW manages the information of GNODEs
  • OpenstackRouting requests the information of GNODEs
  • Scalable GW provides the load-balancing policy to OpenstackRouting
  • Scalable GW handles GNODE fail-over and scale-out

Upstream Traffic Load Balancing

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Gateway Node Fail-Over

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Dynamic Gateway Node Scale-Out

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