公开(公告)号：US20220224410A1

公开(公告)日：2022-07-14

申请号：US17145862

申请日：2021-01-11

Applicant: Cisco Technology, Inc.

Inventor： Raghunandan Annavajjala ,  Sudhir Kayamkulangara ,  Christian Schmutzer ,  Luca Della Chiesa ,  Rayen Mohanty

IPC: H04B10/032 ,  H04L12/707 ,  H04Q11/00

Abstract: In one example, a first Provider Edge (PE) node is configured to communicate with a second PE node through a packet-switched network and with a third PE node through the packet-switched network. The first PE node communicates with a fourth PE node via the second PE node. The fourth PE node is configured to communicate with the second PE node over a working path through a time-division multiplexing transport network. The first PE node exchanges, with the fourth PE node, protection information. Based on exchanging the protection information, the first PE node communicates with the fourth PE node via the third PE node. The fourth PE node is further configured to communicate with the third PE node over a protection path through the time-division multiplexing transport network.

公开(公告)号：US11362754B1

公开(公告)日：2022-06-14

申请号：US17249547

申请日：2021-03-04

Applicant: Cisco Technology, Inc.

Inventor： Sudhir Kayamkulangara ,  Stefano Binetti ,  Rayen Mohanty

IPC: H04J14/02 ,  H04L41/12 ,  H04B10/40

Abstract: Embodiments for adaptive inline modulation tuning for optical interfaces is described. The inline modulation tuning is provided by optical nodes, where the optical nodes exchange optical modulation information and node ability information between optical devices in a node pair. An optimal modulation scheme for the node pair is selected based on modulation abilities of each node and associated transceiver, as well as a link quality and performance observed for the optical link.

公开(公告)号：US11888582B2

公开(公告)日：2024-01-30

申请号：US17806408

申请日：2022-06-10

Applicant: Cisco Technology, Inc.

Inventor： Sudhir Kayamkulangara ,  Stefano Binetti ,  Rayen Mohanty

IPC: H04J14/02 ,  H04L41/12 ,  H04B10/40

CPC classification number: H04J14/021 ,  H04B10/40 ,  H04L41/12

Abstract: Embodiments for adaptive inline modulation tuning for optical interfaces is described. The inline modulation tuning is provided by optical nodes, where the optical nodes exchange optical modulation information and node ability information between optical devices in a node pair. An optimal modulation scheme for the node pair is selected based on modulation abilities of each node and associated transceiver, as well as a link quality and performance observed for the optical link.

公开(公告)号：US11595119B2

公开(公告)日：2023-02-28

申请号：US17145862

申请日：2021-01-11

Applicant: Cisco Technology, Inc.

Inventor： Raghunandan Annavajjala ,  Sudhir Kayamkulangara ,  Christian Schmutzer ,  Luca Della Chiesa ,  Rayen Mohanty

IPC: H04B10/032 ,  H04L45/00 ,  H04Q11/00

Abstract: In one example, a first Provider Edge (PE) node is configured to communicate with a second PE node through a packet-switched network and with a third PE node through the packet-switched network. The first PE node communicates with a fourth PE node via the second PE node. The fourth PE node is configured to communicate with the second PE node over a working path through a time-division multiplexing transport network. The first PE node exchanges, with the fourth PE node, protection information. Based on exchanging the protection information, the first PE node communicates with the fourth PE node via the third PE node. The fourth PE node is further configured to communicate with the third PE node over a protection path through the time-division multiplexing transport network.