公开(公告)号：US20180227218A1

公开(公告)日：2018-08-09

申请号：US15423741

申请日：2017-02-03

Applicant: Cisco Technology, Inc.

Inventor： PASCAL THUBERT ,  IJSBRAND WIJNANDS ,  PATRICK WETTERWALD

IPC: H04L12/705 ,  H04L12/927 ,  H04L12/735

CPC classification number: H04L45/18 ,  H04L45/128 ,  H04L47/806

Abstract: In one embodiment, a method comprises creating, in a computing network, a loop-free routing topology comprising a plurality of routing arcs for reaching a destination network node; identifying, within the loop-free routing topology, non-congruent paths for a source network node to reach the destination node; and determining, from the non-congruent paths, a non-congruent path pair providing no more than a prescribed difference of latency from the source network node to the destination node, enabling the source network node to forward a data packet in a first direction of the one non-congruent path pair and a bicasted copy of the data packet in a second direction of the one non-congruent path pair, for reception of the data packet and the bicasted copy by the destination node within the prescribed difference of latency.

公开(公告)号：US20170222920A1

公开(公告)日：2017-08-03

申请号：US15271811

申请日：2016-09-21

Applicant: Cisco Technology, Inc.

Inventor： PASCAL THUBERT ,  JEAN-PHILIPPE VASSEUR ,  PATRICK WETTERWALD ,  IJSBRAND WIJNANDS

IPC: H04L12/721 ,  H04L29/06

CPC classification number: H04L45/70 ,  H04L45/16 ,  H04L45/48 ,  H04L67/1095 ,  H04L67/12 ,  H04L69/22

Abstract: In one embodiment, a method comprises receiving, by a network device in a deterministic data network comprising deterministic segments, a data packet comprising a packet header having a bit index, each bit in the bit index associated with a corresponding one of the deterministic segments; the network device identifying, from the bit index, a first bit for a corresponding first deterministic segment and a second bit for a corresponding second deterministic segment, wherein the network device is an endpoint for transmitting deterministic traffic into each of the first and second deterministic segments; the network device selectively executing a replication operation of the data packet for transmission of a replicated data packet into each of the first and second deterministic segments, based on the network device detecting the corresponding first and second bits set for replication.