公开(公告)号：US10257102B1

公开(公告)日：2019-04-09

申请号：US15720472

申请日：2017-09-29

Applicant: Juniper Networks, Inc.

Inventor： Ajay Kachrani ,  Manish Talwar ,  Elmer Tolentino ,  Rathi Kartheek ,  Hao Wang

IPC: H04L12/823 ,  H04L1/20 ,  H04B10/40

CPC classification number: H04L47/32 ,  H04B10/40 ,  H04B10/5057 ,  H04L1/203 ,  H04L41/0659 ,  H04L43/0847 ,  H04L43/10 ,  H04Q2011/0079

Abstract: In some embodiments, an apparatus comprises an optical transponder which includes a processor, an electrical interface and an optical interface. The processor is operatively coupled to the electrical interface and the optical interface. The optical interface is configured to be operatively coupled to a plurality of optical links and the electrical interface is configured to be operatively coupled to a router such that the optical transponder is configured to be operatively coupled between the plurality of optical links and the router. The processor is configured to perform pre-forward error correction (FEC) bit error rate (BER) detection to identify a degradation of an optical link from the plurality of optical links. The processor is configured to make modifications to packets designated to be transmitted via the optical link in response to the degradation being identified such that the router is notified of the degradation of the optical link.

公开(公告)号：US10735333B2

公开(公告)日：2020-08-04

申请号：US16283331

申请日：2019-02-22

Applicant: Juniper Networks, Inc.

Inventor： Ajay Kachrani ,  Manish Talwar ,  Elmer Tolentino ,  Rathi Kartheek ,  Hao Wang

IPC: H04L12/823 ,  H04L1/20 ,  H04B10/40 ,  H04B10/50 ,  H04L12/24 ,  H04L12/26 ,  H04Q11/00 ,  H04B10/079 ,  H04B10/032

Abstract: In some embodiments, an apparatus comprises an optical transponder which includes a processor, an electrical interface and an optical interface. The processor is operatively coupled to the electrical interface and the optical interface. The optical interface is configured to be operatively coupled to a plurality of optical links and the electrical interface is configured to be operatively coupled to a router such that the optical transponder is configured to be operatively coupled between the plurality of optical links and the router. The processor is configured to perform pre-forward error correction (FEC) bit error rate (BER) detection to identify a degradation of an optical link from the plurality of optical links. The processor is configured to make modifications to packets designated to be transmitted via the optical link in response to the degradation being identified such that the router is notified of the degradation of the optical link.

公开(公告)号：US10425345B2

公开(公告)日：2019-09-24

申请号：US15720472

申请日：2017-09-29

Applicant: Juniper Networks, Inc.

Inventor： Ajay Kachrani ,  Manish Talwar ,  Elmer Tolentino ,  Rathi Kartheek ,  Hao Wang

IPC: H04L12/823 ,  H04L1/20 ,  H04B10/40 ,  H04L12/26 ,  H04Q11/00

Abstract: In some embodiments, an apparatus comprises an optical transponder which includes a processor, an electrical interface and an optical interface. The processor is operatively coupled to the electrical interface and the optical interface. The optical interface is configured to be operatively coupled to a plurality of optical links and the electrical interface is configured to be operatively coupled to a router such that the optical transponder is configured to be operatively coupled between the plurality of optical links and the router. The processor is configured to perform pre-forward error correction (FEC) bit error rate (BER) detection to identify a degradation of an optical link from the plurality of optical links. The processor is configured to make modifications to packets designated to be transmitted via the optical link in response to the degradation being identified such that the router is notified of the degradation of the optical link.

公开(公告)号：US10367724B1

公开(公告)日：2019-07-30

申请号：US15835075

申请日：2017-12-07

Applicant: Juniper Networks, Inc.

Inventor： Rathi Kartheek

IPC: H04L12/703 ,  H04L12/707 ,  H04B10/80 ,  H04B10/032

Abstract: In some embodiments, a system includes a first router and a second router both configured to be included within an OTN. The first router is configured to send to the second router a first signal having an ODU with a path delay measurement (DMp) bit set. The first router is configured to, in response to not receiving within a path-length-dependent time period from the second router a second signal having the DMp bit set, (1) trigger a protection action at the first router, and (2) send to the second router a signal configured to notify the second router to trigger the protection action at the second router. The second router is configured to, in response to receiving the signal configured to notify, trigger the protection action at the second router.

公开(公告)号：US09323627B1

公开(公告)日：2016-04-26

申请号：US14265321

申请日：2014-04-29

Applicant: Juniper Networks, Inc.

Inventor： Rahul Kulkarni ,  Rathi Kartheek

IPC: G06F11/00 ,  G06F11/18

CPC classification number: H04L41/0659 ,  H04L43/0847

Abstract: A computer-implemented method for detecting fault conditions experienced by remote physical ports may include (1) identifying a network connection between a first physical port operating in a first communication mode and a second physical port operating in a second communication mode, (2) monitoring at least one count that identifies the number of block-sized transmission errors encountered by the first physical port, (3) determining that the second physical port has experienced a fault condition based at least in part on the count that identifies the number of block-sized transmission errors encountered by the first physical port and then, in response to determining that the second physical port has experienced the fault condition, (4) deactivating the network connection to avoid dropping network traffic directed to the network connection. Various other systems, methods, and apparatuses are also disclosed.

Abstract translation: 用于检测远程物理端口所经历的故障状况的计算机实现的方法可以包括（1）识别在第一通信模式中操作的第一物理端口与以第二通信模式操作的第二物理端口之间的网络连接，（2）监视 至少一个计数，其识别由第一物理端口遇到的块大小的传输错误的数量，（3）至少部分地基于标识块的数量的计数来确定第二物理端口已经经历了故障状况， 响应于确定第二物理端口已经经历了故障状况，（4）停用网络连接以避免丢弃指向网络连接的网络流量，从而确定第一物理端口遇到的大小的传输错误。 还公开了各种其它系统，方法和装置。