公开(公告)号：US20200036576A1

公开(公告)日：2020-01-30

申请号：US16048107

申请日：2018-07-27

Applicant: VMware, Inc.

Inventor： Kai-Wei FAN ,  Haihua LUO ,  Stephen TAN

IPC: H04L12/24 ,  H04L12/703 ,  H04L12/707 ,  H04L12/751 ,  H04L12/26 ,  H04L29/06

Abstract: A method for providing two-channel-based high-availability in a cluster of nodes is disclosed. In an embodiment, a method comprises: initiating, by a local control plane executing on a first node, a first state for an underlay control channel and a second state for a management control channel; detecting a bidirectional forwarding detection (“BFD”) control packet from a second node; determining whether the BFD control packet has been received from the underlay control channel; in response to determining that the BFD control packet was received from the underlay control channel: parsing the BFD control packet to extract a first diagnostic code; updating the first state with the first diagnostic code; determining whether both the first state and the second state indicate that the second node is unreachable; in response to determining that the second node is unreachable, initiating a switchover of services configured on the second node.

公开(公告)号：US20210314263A1

公开(公告)日：2021-10-07

申请号：US17352609

申请日：2021-06-21

Applicant: VMware, Inc.

Inventor： Subin Cyriac MATHEW ,  Sami BOUTROS ,  Stephen TAN ,  Senthilkumar KARUNAKARAN ,  Chidambareswaran RAMAN

IPC: H04L12/803 ,  H04L12/801 ,  H04L12/733 ,  H04L12/66 ,  H04L12/46 ,  H04L12/18

Abstract: The disclosure provides an approach for reducing congestion within a network, the network comprising a plurality of subnets, the plurality of subnets comprising a plurality of host machines and a plurality of virtual computing instances (VCIs) running on the plurality of host machines. Embodiments include receiving, by an edge services gateway (ESG) of a first subnet of the plurality of subnets, membership information for a group identifying a subset of the plurality of host machines. Embodiments include receiving a multicast packet directed to the group and selecting from the plurality of host machines, a replicator host machine for the multicast packet. Embodiments include sending, to the replicator host machine, the multicast packet along with metadata indicating that the replicator host machine is to replicate the multicast packet to remaining host machines of the subset of the plurality of host machines identified in the membership information for the group.

公开(公告)号：US20210126866A1

公开(公告)日：2021-04-29

申请号：US16662400

申请日：2019-10-24

Applicant: VMware, Inc.

Inventor： Subin Cyriac MATHEW ,  Sami BOUTROS ,  Stephen TAN ,  Senthilkumar KARUNAKARAN ,  Chidambareswaran RAMAN

IPC: H04L12/803 ,  H04L12/801 ,  H04L12/733 ,  H04L12/18 ,  H04L12/46 ,  H04L12/66

Abstract: The disclosure provides an approach for reducing congestion within a network, the network comprising a plurality of subnets, the plurality of subnets comprising a plurality of host machines and a plurality of virtual computing instances (VCIs) running on the plurality of host machines. Embodiments include receiving, by an edge services gateway (ESG) of a first subnet of the plurality of subnets, membership information for a group identifying a subset of the plurality of host machines. Embodiments include receiving a multicast packet directed to the group and selecting from the plurality of host machines, a replicator host machine for the multicast packet. Embodiments include sending, to the replicator host machine, the multicast packet along with metadata indicating that the replicator host machine is to replicate the multicast packet to remaining host machines of the subset of the plurality of host machines identified in the membership information for the group.

公开(公告)号：US20230006932A1

公开(公告)日：2023-01-05

申请号：US17365785

申请日：2021-07-01

Applicant: VMware, Inc.

Inventor： Senthilkumar KARUNAKARAN ,  Chidambareswaran RAMAN ,  Meenakshi Sundaram SELVARAJ ,  Subin Cyriac MATHEW ,  Stephen TAN

IPC: H04L12/803 ,  H04L12/927 ,  H04L12/801 ,  H04L12/46

Abstract: A method of transmitting multicast traffic to workloads of tenants communicating over overlay networks provisioned on top of a physical network includes the steps of: detecting the multicast traffic; determining that the multicast traffic is bound for workloads of a first tenant and workloads of a second tenant; encapsulating one instance of the multicast traffic using a Layer 2 (L2) over Layer 3 (L3) encapsulation protocol to generate encapsulated traffic, wherein the encapsulated traffic includes an identifier of a first backplane network corresponding to the first tenant and an identifier of a second backplane network corresponding to the second tenant in a header portion of each packet of the encapsulated traffic; and transmitting, to a first host computing device, the encapsulated traffic with the identifiers of the first and second overlay networks.

公开(公告)号：US20230246968A1

公开(公告)日：2023-08-03

申请号：US18299686

申请日：2023-04-12

Applicant: VMware, Inc.

Inventor： Senthilkumar KARUNAKARAN ,  Chidambareswaran RAMAN ,  Meenakshi Sundaram SELVARAJ ,  Subin Cyriac MATHEW ,  Stephen TAN

IPC: H04L47/125 ,  H04L47/193 ,  H04L12/46 ,  H04L47/80

CPC classification number: H04L47/125 ,  H04L47/193 ,  H04L12/4633 ,  H04L47/806

Abstract: A method of transmitting multicast traffic to workloads of tenants communicating over overlay networks provisioned on top of a physical network includes the steps of: detecting the multicast traffic; determining that the multicast traffic is bound for workloads of a first tenant and workloads of a second tenant; encapsulating one instance of the multicast traffic using a Layer 2 (L2) over Layer 3 (L3) encapsulation protocol to generate encapsulated traffic, wherein the encapsulated traffic includes an identifier of a first backplane network corresponding to the first tenant and an identifier of a second backplane network corresponding to the second tenant in a header portion of each packet of the encapsulated traffic; and transmitting, to a first host computing device, the encapsulated traffic with the identifiers of the first and second overlay networks.

公开(公告)号：US20210352004A1

公开(公告)日：2021-11-11

申请号：US17179174

申请日：2021-02-18

Applicant: VMware, Inc.

Inventor： Rahul MISHRA ,  Kantesh MUNDARAGI ,  Stephen TAN ,  Akhila NAVEEN ,  Pierluigi ROLANDO ,  Raju KOGANTY

IPC: H04L12/707 ,  H04L12/24

Abstract: In an embodiment, a method for a VRF and multi-service insertion on edge gateways is described. In an embodiment, the method comprises obtaining a rule configuration. Based on, at least in part, the rule configuration, a rule table is created. The rule table comprises rule data records, wherein a rule data record comprises packet attributes and a redirection identifier. A policy configuration comprising policy records is obtained. Each policy record comprises a redirection identifier, a next_hop, and an address pair for interfaces. A mapping between VRF identifiers and address pairs is generated. Based on, at least in part, the mapping and the policy configuration, a policy table is generated. The policy table comprises table records, wherein a table record comprises a redirection identifier, a next_hop, and an address pair. The rule and policy tables are used to redirect a packet from an edge gateway to a service virtual machine.