Due to a ransomware attack, the wiki was reverted to a July 2022 version. . We apologize for the lack of a more recent valid backup.
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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 of 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 Design
Scalable Gateway takes an advantage of OpenFlow “Fast Failover” group for load balancing and HA, where each bucket represents a single gateway. Each VM has its own gateway group and the bucket order of each group is decided by various mechanisms of the scalable gateway so that the outbound traffic of the VMs can be distributed.
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Fast failover group takes the first bucket until its watch port is alive. It takes the next bucket if the first bucket fails. |
