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公开(公告)号：US20210226869A1
公开(公告)日：2021-07-22
申请号：US16748764
申请日：2020-01-21
Applicant: VMware, Inc.
Inventor： Sharath BHAT , Yashika NARANG , Xinghua HU , Xinhua HONG , Vinay JAIN , Neeraj DIXIT
IPC: H04L12/26 , H04L12/733 , H04L12/713 , H04L29/12
Abstract: One example may comprise a computer system receiving a request to perform an offline connectivity check between a source endpoint and a destination endpoint; and obtaining logical network information associated with a production environment in which multiple logical network elements are deployed. Based on the logical network information, the computer system may identify a logical network path connecting the source endpoint and the destination endpoint and perform an offline traversal of the logical network path outside of the production environment. In response to detecting a connectivity issue during the offline traversal, report information identifying the logical network path and the connectivity issue may be generated.
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公开(公告)号：US20210226839A1
公开(公告)日：2021-07-22
申请号：US17107170
申请日：2020-11-30
Applicant: VMware, Inc.
Inventor： Xinhua HONG , Dexiang WANG , Sharath BHAT , Xinghua HU , Jia YU
Abstract: In an embodiment, a computer-implemented method for a MAC addresses synchronization mechanism for a bridge port failover is disclosed. In an embodiment, the method comprises: upon detecting a failover of a previously active bridge node, a standby bridge node performing: detecting a failover of a previously active bridge node; sending a request to one or more hosts to cause the one or more hosts to remove, from one or more corresponding forwarding tables, one or more MAC addresses, of one or more virtual machines, that the one or more hosts learned based on communications tunnels established with the previously active bridge node; for each MAC address stored in a MAC-SYNC table maintained by the standby bridge node: generating a first-type reverse address resolution protocol (“RARP”) packet having a source MAC address retrieved from the MAC-SYNC table; broadcasting the first RARP message to a virtual extensible LAN (“VXLAN”) switch via a bridge port of the VXLAN switch for the VXLAN switch to register the MAC address on the bridge port; storing an association of the MAC address and an identifier of the bridge port in a forwarding table maintained by the standby bridge node; for each MAC address that is stored in the forwarding table, but not in the MAC-SYNC table: generating a second-type RARP packet with such a MAC address to be the source MAC address; broadcasting the second RARP message from the VXLAN switch to a VLAN switch causing a physical switch to update a forwarding table maintained by the physical switch; and starting to forward traffic, via the bridge port, as an active bridge node.
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公开(公告)号：US20210014142A1
公开(公告)日：2021-01-14
申请号：US16550311
申请日：2019-08-26
Applicant: VMware, Inc.
Inventor： Qiao HUANG , Donghai HAN , Qiong WANG , Xu WANG , Xinghua HU , Yuping WEI
Abstract: Example methods and systems are provided for cross-cloud connectivity checks. One example method may include detecting a first connectivity check packet that is addressed from a first virtualized computing instance deployed in a first cloud environment; and determining that the first connectivity check packet is destined for a second virtualized computing instance in a second cloud environment reachable via the network device. The method may also comprise: generating a second connectivity check packet by modifying the first connectivity check packet to include one or more indicators that a connectivity check is required along a datapath towards the second virtualized computing instance in the second cloud environment. The method may further comprise: sending the second connectivity check packet to cause one or more observation points along the datapath to, based on the one or more indicators, generate and send report information associated with the second connectivity packet.
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公开(公告)号：US20200186412A1
公开(公告)日：2020-06-11
申请号：US16212379
申请日：2018-12-06
Applicant: VMware, Inc.
Inventor： Xinhua HONG , Dexiang WANG , Sharath BHAT , Xinghua HU , Jia YU
Abstract: In an embodiment, a computer-implemented method for a MAC addresses synchronization mechanism for a bridge port failover is disclosed. In an embodiment, the method comprises: upon detecting a failover of a previously active bridge node, a standby bridge node performing: detecting a failover of a previously active bridge node; sending a request to one or more hosts to cause the one or more hosts to remove, from one or more corresponding forwarding tables, one or more MAC addresses, of one or more virtual machines, that the one or more hosts learned based on communications tunnels established with the previously active bridge node; for each MAC address stored in a MAC-SYNC table maintained by the standby bridge node: generating a first-type reverse address resolution protocol (“RARP”) packet having a source MAC address retrieved from the MAC-SYNC table; broadcasting the first RARP message to a virtual extensible LAN (“VXLAN”) switch via a bridge port of the VXLAN switch for the VXLAN switch to register the MAC address on the bridge port; storing an association of the MAC address and an identifier of the bridge port in a forwarding table maintained by the standby bridge node; for each MAC address that is stored in the forwarding table, but not in the MAC-SYNC table: generating a second-type RARP packet with such a MAC address to be the source MAC address; broadcasting the second RARP message from the VXLAN switch to a VLAN switch causing a physical switch to update a forwarding table maintained by the physical switch; and starting to forward traffic, via the bridge port, as an active bridge node.
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