公开(公告)号：US11750441B1

公开(公告)日：2023-09-05

申请号：US16125369

申请日：2018-09-07

Applicant: Juniper Networks, Inc.

Inventor： Reji Thomas ,  Harmeet Singh ,  Amit Arora ,  Jimmy Jose ,  Sairam Neelam ,  Vinod Arumugham Chettiar

IPC: H04L41/0677 ,  H04L67/145 ,  H04L69/16 ,  H04L61/5007

CPC classification number: H04L41/0677 ,  H04L61/5007 ,  H04L67/145 ,  H04L69/16

Abstract: A method and network device for detecting a TCP socket failure is described. A network device may be configured to detect a failure of a link between a first node and a second node, determine one or more transmission control protocol (TCP) sockets of a plurality of TCP sockets on the first node that are communicating over the link between the first node and the second node, write information to a TCP stack for the determined one or more TCP sockets, the information indicating that the determined one or more TCP sockets have an error, and remediate the determined one or more TCP sockets in response to the information.

公开(公告)号：US11165684B2

公开(公告)日：2021-11-02

申请号：US16835970

申请日：2020-03-31

Applicant: Juniper Networks, Inc.

Inventor： Vasudevan Navaneetha Krishnan ,  Raveendra Torvi ,  Srikanth Venakta Gandiboyina ,  Ashish Kumar ,  Srihari Ramachandra Sangli ,  Jimmy Jose ,  Amit Arora ,  Harmeet Singh

IPC: H04L12/66 ,  H04L12/755 ,  H04L12/721 ,  H04L12/46

Abstract: In general, this disclosure describes a network device that checks consistency between routing objects in a routing information base (RIB), a forwarding information base (FIB), and packet forwarding engine (PFE) forwarding tables. A method includes generating a marker that causes a routing protocol daemon, a control plane kernel, and PFEs of a network device to calculate zonal checksums for a plurality of zones using consistency values for each routing object within a RIB, a FIB, and corresponding forwarding tables respectively. The method includes performing a consistency check on the RIB, the FIB, and the forwarding tables to determine whether the routing objects in each of the RIB, the FIB, and the forwarding tables are consistent with each other. The method includes, when the RIB, the FIB, and the forwarding tables are not consistent, performing an action related to at least one of RIB, the FIB, or the forwarding tables.

公开(公告)号：US20200099654A1

公开(公告)日：2020-03-26

申请号：US16138767

申请日：2018-09-21

Applicant: Juniper Networks, Inc.

Inventor： Jimmy Jose ,  Pranavadatta D N ,  Reji Thomas

IPC: H04L29/12

Abstract: A network device in a network may determine a tentative network address for a network interface of the network device and may determine whether the tentative network address is duplicative of any one of the network addresses in the network. If the tentative network address is duplicative of a network address assigned to another network interface in the network, the network device may store an indication of the other network interface. In response to receiving an indication that a new network address is assigned to the other network interface, the network device may re-determine whether the tentative network address is duplicative of any one of the network addresses in the network. If the network device determines that the tentative network address is not duplicative of any one of the plurality of network addresses in the network, the network device may assign the tentative network address to the network interface.

公开(公告)号：US10250497B1

公开(公告)日：2019-04-02

申请号：US15616467

申请日：2017-06-07

Applicant: Juniper Networks, Inc.

Inventor： Jimmy Jose ,  Reji Thomas ,  Sandip Kumar Ghosh

IPC: H04L12/713 ,  H04L12/741 ,  H04L12/823 ,  H04L29/08 ,  H04L29/12

Abstract: A first network device may activate the first network device as being associated with a Virtual Router Redundancy Protocol (VRRP) group. The first network device may receive, from a second network device, a duplicate address detection message. The first network device may compare a data link layer address associated with the duplicate address detection message and a Virtual Media Access Control (VMAC) address of the VRRP group. The first network device may disregard the duplicate address detection message after comparing the data link layer address and the VMAC address of the VRRP group.