US 12,231,334 B2
Ultra reliable segment routing
Thierry Van de Velde, Meise (BE); and Satish Kanugovi, Bengaluru (IN)
Assigned to Nokia Solutions and Networks Oy, Espoo (FI)
Filed by Nokia Solutions and Networks OY, Espoo (FI)
Filed on Aug. 4, 2023, as Appl. No. 18/365,446.
Application 18/365,446 is a continuation of application No. 16/867,788, filed on May 6, 2020, granted, now 11,777,846.
Prior Publication US 2023/0379244 A1, Nov. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 45/50 (2022.01); H04L 45/302 (2022.01); H04L 45/74 (2022.01); H04L 67/63 (2022.01); H04L 69/22 (2022.01)
CPC H04L 45/50 (2013.01) [H04L 45/306 (2013.01); H04L 45/74 (2013.01); H04L 67/63 (2022.05); H04L 69/22 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An apparatus comprising a first node that comprises packet-processing circuitry and a memory, the first node being configured to receive from a second node a packet set of two or more egress packets in response to the second node receiving an ingress packet, each of the two or more egress packets being transmitted via a different respective network path connecting the first and second nodes, wherein:
each egress packet of the two or more egress packets comprises:
a copy of a payload of the ingress packet;
a packet header comprising a replication segment identifier (RSID) identifying a replication segment, wherein the RSID is based on the payload of the ingress packet; and
the memory is configured to store each egress packet received from the second node; and
the packet-processing circuitry is configured to determine whether or not to delete the egress packet from the memory based on the egress packet's RSID, wherein:
for each ingress packet, the two or more egress packets have the same RSID; and
the length of the RSID in the egress packets is different for at least two different ingress packets.