公开(公告)号：US20240015086A1

公开(公告)日：2024-01-11

申请号：US18370006

申请日：2023-09-19

申请人： Nicira, Inc.

发明人： Sami Boutros ,  Stephen Tan ,  Rahul Mishra ,  Kantesh Mundaragi ,  Jayant Jain ,  Akhila Naveen

IPC分类号： H04L43/0805 ,  H04L41/0668 ,  H04L43/10

CPC分类号： H04L43/0805 ,  H04L41/0668 ,  H04L43/10

摘要： Some embodiments provide a method for detecting a failure of a layer 2 (L2) bump-in-the-wire service at a device. In some embodiments, the device sends heartbeat signals to a second device connected to L2 service nodes in order to detect failure of the L2 service (e.g., a failure of all the service nodes). In some embodiments, the heartbeat signals are unidirectional heartbeat signals (e.g., a unidirectional bidirectional-forwarding-detection (BFD) session) sent from each device to the other. The heartbeat signals, in some embodiments, use a broadcast MAC address in order to reach the current active L2 service node in the case of a failover (i.e., an active service node failing and a standby service node becoming the new active service node). The unidirectional heartbeat signals are also used, in some embodiments, to decrease the time between a failover and data messages being forwarded to the new active service node.

公开(公告)号：US20210306240A1

公开(公告)日：2021-09-30

申请号：US17346255

申请日：2021-06-13

申请人： Nicira, Inc.

发明人： Sami Boutros ,  Stephen Tan ,  Rahul Mishra ,  Kantesh Mundaragi ,  Jayant Jain ,  Akhila Naveen

IPC分类号： H04L12/26 ,  H04L12/24

摘要： Some embodiments provide a method for detecting a failure of a layer 2 (L2) bump-in-the-wire service at a device. In some embodiments, the device sends heartbeat signals to a second device connected to L2 service nodes in order to detect failure of the L2 service (e.g., a failure of all the service nodes). In some embodiments, the heartbeat signals are unidirectional heartbeat signals (e.g., a unidirectional bidirectional-forwarding-detection (BFD) session) sent from each device to the other. The heartbeat signals, in some embodiments, use a broadcast MAC address in order to reach the current active L2 service node in the case of a failover (i.e., an active service node failing and a standby service node becoming the new active service node). The unidirectional heartbeat signals are also used, in some embodiments, to decrease the time between a failover and data messages being forwarded to the new active service node.

公开(公告)号：US10728174B2

公开(公告)日：2020-07-28

申请号：US15937615

申请日：2018-03-27

申请人： Nicira, Inc.

发明人： Sami Boutros ,  Stephen Tan ,  Rahul Mishra ,  Kantesh Mundaragi ,  Jayant Jain ,  Sumedh Saurav ,  Abhishek Mishra ,  Akhila Naveen

IPC分类号： H04L12/935 ,  H04L12/66 ,  H04L12/931 ,  H04L12/721 ,  H04L12/771 ,  H04L12/713 ,  H04L12/46

摘要： Some embodiments provide a method for providing a layer 2 (L2) bump-in-the-wire service at a gateway device (e.g., a layer 3 (L3) gateway device) at the edge of a logical network. The method, in some embodiments, establishes a connection from a first interface of the gateway device to a service node that provides the L2 service. The method also establishes a connection from a second interface of the gateway device to the L2 service node. The method then sends data messages received by the gateway device that require the L2 service to the service node using the first interface. Some embodiments provide a method for applying different policies at the service node for different tenants of a datacenter. Data messages received for a particular tenant that require the L2 service are encapsulated or marked as belonging to the tenant before being sent to the service node. Based on the encapsulation or marking, the service node provides the service according to policies defined for the tenant.

公开(公告)号：US11805036B2

公开(公告)日：2023-10-31

申请号：US17346255

申请日：2021-06-13

申请人： Nicira, Inc.

发明人： Sami Boutros ,  Stephen Tan ,  Rahul Mishra ,  Kantesh Mundaragi ,  Jayant Jain ,  Akhila Naveen

IPC分类号： H04L12/24 ,  H04L12/26 ,  H04L43/0805 ,  H04L41/0668 ,  H04L43/10

CPC分类号： H04L43/0805 ,  H04L41/0668 ,  H04L43/10

摘要： Some embodiments provide a method for detecting a failure of a layer 2 (L2) bump-in-the-wire service at a device. In some embodiments, the device sends heartbeat signals to a second device connected to L2 service nodes in order to detect failure of the L2 service (e.g., a failure of all the service nodes). In some embodiments, the heartbeat signals are unidirectional heartbeat signals (e.g., a unidirectional bidirectional-forwarding-detection (BFD) session) sent from each device to the other. The heartbeat signals, in some embodiments, use a broadcast MAC address in order to reach the current active L2 service node in the case of a failover (i.e., an active service node failing and a standby service node becoming the new active service node). The unidirectional heartbeat signals are also used, in some embodiments, to decrease the time between a failover and data messages being forwarded to the new active service node.

公开(公告)号：US20190306036A1

公开(公告)日：2019-10-03

申请号：US15937621

申请日：2018-03-27

申请人： Nicira, Inc.

发明人： Sami Boutros ,  Stephen Tan ,  Rahul Mishra ,  Kantesh Mundaragi ,  Jayant Jain ,  Akhila Naveen

IPC分类号： H04L12/26 ,  H04L12/24

摘要： Some embodiments provide a method for detecting a failure of a layer 2 (L2) bump-in-the-wire service at a device. In some embodiments, the device sends heartbeat signals to a second device connected to L2 service nodes in order to detect failure of the L2 service (e.g., a failure of all the service nodes). In some embodiments, the heartbeat signals are unidirectional heartbeat signals (e.g., a unidirectional bidirectional-forwarding-detection (BFD) session) sent from each device to the other. The heartbeat signals, in some embodiments, use a broadcast MAC address in order to reach the current active L2 service node in the case of a failover (i.e., an active service node failing and a standby service node becoming the new active service node). The unidirectional heartbeat signals are also used, in some embodiments, to decrease the time between a failover and data messages being forwarded to the new active service node.

公开(公告)号：US11038782B2

公开(公告)日：2021-06-15

申请号：US16945868

申请日：2020-08-01

申请人： Nicira, Inc.

发明人： Sami Boutros ,  Stephen Tan ,  Rahul Mishra ,  Kantesh Mundaragi ,  Jayant Jain ,  Akhila Naveen

IPC分类号： H04L12/26 ,  H04L12/24

摘要： Some embodiments provide a method for detecting a failure of a layer 2 (L2) bump-in-the-wire service at a device. In some embodiments, the device sends heartbeat signals to a second device connected to L2 service nodes in order to detect failure of the L2 service (e.g., a failure of all the service nodes). In some embodiments, the heartbeat signals are unidirectional heartbeat signals (e.g., a unidirectional bidirectional-forwarding-detection (BFD) session) sent from each device to the other. The heartbeat signals, in some embodiments, use a broadcast MAC address in order to reach the current active L2 service node in the case of a failover (i.e., an active service node failing and a standby service node becoming the new active service node). The unidirectional heartbeat signals are also used, in some embodiments, to decrease the time between a failover and data messages being forwarded to the new active service node.

公开(公告)号：US10805192B2

公开(公告)日：2020-10-13

申请号：US15937621

申请日：2018-03-27

申请人： Nicira, Inc.

发明人： Sami Boutros ,  Stephen Tan ,  Rahul Mishra ,  Kantesh Mundaragi ,  Jayant Jain ,  Akhila Naveen

IPC分类号： H04L12/26 ,  H04L12/24

摘要： Some embodiments provide a method for detecting a failure of a layer 2 (L2) bump-in-the-wire service at a device. In some embodiments, the device sends heartbeat signals to a second device connected to L2 service nodes in order to detect failure of the L2 service (e.g., a failure of all the service nodes). In some embodiments, the heartbeat signals are unidirectional heartbeat signals (e.g., a unidirectional bidirectional-forwarding-detection (BFD) session) sent from each device to the other. The heartbeat signals, in some embodiments, use a broadcast MAC address in order to reach the current active L2 service node in the case of a failover (i.e., an active service node failing and a standby service node becoming the new active service node). The unidirectional heartbeat signals are also used, in some embodiments, to decrease the time between a failover and data messages being forwarded to the new active service node.

公开(公告)号：US20190306086A1

公开(公告)日：2019-10-03

申请号：US15937615

申请日：2018-03-27

申请人： Nicira, Inc.

发明人： Sami Boutros ,  Stephen Tan ,  Rahul Mishra ,  Kantesh Mundaragi ,  Jayant Jain ,  Sumedh Saurav ,  Abhishek Mishra ,  Akhila Naveen

IPC分类号： H04L12/935 ,  H04L12/66 ,  H04L12/931 ,  H04L12/771 ,  H04L12/721

摘要： Some embodiments provide a method for providing a layer 2 (L2) bump-in-the-wire service at a gateway device (e.g., a layer 3 (L3) gateway device) at the edge of a logical network. The method, in some embodiments, establishes a connection from a first interface of the gateway device to a service node that provides the L2 service. The method also establishes a connection from a second interface of the gateway device to the L2 service node. The method then sends data messages received by the gateway device that require the L2 service to the service node using the first interface. Some embodiments provide a method for applying different policies at the service node for different tenants of a datacenter. Data messages received for a particular tenant that require the L2 service are encapsulated or marked as belonging to the tenant before being sent to the service node. Based on the encapsulation or marking, the service node provides the service according to policies defined for the tenant.