Nicira, Inc.

Corentin Derbois

Donghai Han

Jianjun Shen

Vadim Egorov

Akshay Kumar Sreeramoju

Madhusudhan Ravi

Gopakumar Pillai

A method of creating containers in a physical host that includes a managed forwarding element (MFE) configured to forward packets to and from a set of data compute nodes (DCNs) hosted by the physical host. The method creates a container DCN in the host. The container DCN includes a virtual network interface card (VNIC) configured to exchange packets with the MFE. The method creates a plurality of containers in the container DCN. The method, for each container in the container DCN, creates a corresponding port on the MFE. The method sends packets addressed to each of the plurality of containers from the corresponding MFE port to the VNIC of the container DCN.

Forwarding element implementation for containers

Techniques disclosed herein provide an approach for diagnosing problems in a network connection established between applications running on two endpoints. In one embodiment, upon identification of a potential issue in the network connection, a connection detector is triggered in one of the endpoints and requests a kernel of that endpoint to transmit an on-demand, non-invasive packet to the other endpoint. The connection detector then determines whether the application running on the other endpoint is available via the connection based on whether an acknowledgment packet is received from the other endpoint after the transmission of the non-invasive packet.

On-demand connection ping

A method of communicating packets in a physical host that includes a managed forwarding element (MFE) configured to communicate packets to a set of containers in a data compute node (DCN) hosted by the physical host. The method receives a packet from a particular container in the container DCN. The packet includes a tag that includes an identification of the particular container. The method uses the identification of the particular container included in the tag to identify a port of the MFE that correspond to the particular container. The method removes the tag from the packet. The method forwards the un-tagged packet to the port of the MFE that corresponds to the particular container.

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San Jose, CA, United States of America

Corentin Derbois