公开(公告)号：US20200314057A1

公开(公告)日：2020-10-01

申请号：US16366776

申请日：2019-03-27

Applicant: VMware, Inc.

Inventor： Xinhua Hong ,  Yong Wang ,  Jia Yu

IPC: H04L29/12 ,  H04L12/66 ,  H04L12/46 ,  H04L29/06

Abstract: In an embodiment, a computer-implemented method for using multiple IP addresses in GRE IP headers to prevent IPID fragmentation overlapping in L2VPN networks is disclosed. In an embodiment, the method comprises: receiving, by an edge service gateway, a packet that requires fragmentating; determining whether the gateway is configured to prevent IPID fragmentation overlapping; and in response to determining that the gateway is configured to prevent IPID fragmentation overlapping, creating a plurality of packet fragments of the packet. A packet fragment comprises a GRE IP header, additional headers, and a portion of the packet. The GRE IP header stores an IPID generated for the packet in an IPID field, a source private IP address in a source IP address field, and a destination private IP address in a destination IP address field. The source private IP address, the destination private IP address and the IPID collectively form a packet identifier of the packet.

公开(公告)号：US10652129B2

公开(公告)日：2020-05-12

申请号：US15640281

申请日：2017-06-30

Applicant: VMware, Inc.

Inventor： Lenin Singaravelu ,  Jin Heo ,  Jui-Ting Weng ,  Ayyappan Veeraiyan ,  Yong Wang

IPC: H04L12/26 ,  G06F9/455 ,  H04L12/841

Abstract: A method of optimizing network processing in a system comprising a physical host and a set of physical network interface controllers (PNICs) is provided. The physical host includes a forwarding element. The method includes determining that a set of conditions is satisfied to bypass the forwarding element for exchanging packets between a particular data compute node (DCN) and a particular PNIC. The set of conditions includes the particular DCN being the only DCN connected to the forwarding element and the particular PNIC being the only PNIC connected to the forwarding element. The method exchanges packets between the particular DCN and the particular PNIC bypassing the forwarding element. The method determines that at least one condition in said set of conditions is not satisfied. The method utilizes the forwarding element to exchange packets between the particular DCN and the particular PNIC.