Alibaba Group Holding Limited

Li Han

Gang Cheng

Wei Zhao

Jun Zeng

The techniques discussed herein include storing a fast-path and a slow-path table in a memory associated with a programmable switch, such as a cache of the programmable switch. An offload controller may control the contents of the fast-path and/or slow-path table and may thereby control behavior of the programmable switch. The programmable may route a received packet to a gateway if the packet generates a hit in the slow-path table. If the received packet generates a hit in the fast-path table, the packet may be forwarded directly to a virtual private cloud (VPC), virtual switch thereof, and/or to a virtual machine (VM).

Overlay network routing using a programmable switch

The techniques described herein include isolating network traffic between tenants using a programmable switch that routes network traffic directly to the appropriate virtual private cloud (VPC) and/or virtual machine (VM).

ASIC for routing a packet

A provider edge device and a cloud controller are provided. The provider edge device receives route information associated with a virtual private cloud, and sends the route information to the cloud controller. In response to receiving the route information from the provider edge device, the cloud controller distributes the route information to one or more other provider edge devices of the cloud network of the service provider that includes the provider edge device.

Route information distribution through cloud controller

A method and system that include techniques for an offload controller that controls functionality of a programmable switch. The offload controller may handle hash management and/or hash collision resolution for the programmable switch. The offload controller may additionally or alternatively configure the programmable switch to forward packets directly to a virtual private cloud (VPC) and/or virtual machine (VM), bypassing a gateway in some instances.

Offload controller control of programmable switch

The techniques discussed herein include an offload controller, a virtual routing controller, and/or virtual routing objects. In some instances the virtual routing controller may be configured and/or positioned to peer client premises equipment (CPE). This may include establishing an external gateway protocol session with CPE and generating a virtual routing object based at least in part on the session. In some examples, this virtual routing object may be used to configure routes between a switch and a virtual private cloud (VPC) and/or virtual machine (VM).

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Bellevue, WA, United States of America

Li Han