Apparatus, system, and method for imposing label stack entries on MPLs packets
US10469371B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2018 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Jan 7, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The disclosed system may include (1) receiving, at an ingress node within a network, a request to forward a packet along a label-switched path to an egress node within the network, (2) identifying a limit on the number of labels that the ingress node is capable of forwarding within a label stack of the packet, (3) determining that the number of hops within the label-switched path exceeds the limit on the number of labels that the ingress node is capable of forwarding, (4) selecting at least one of the hops within the label-switched path to act as a delegation node that imposes, onto the label stack of the packet, at least one label corresponding to a downstream hop within the label-switched path and (5) forwarding the packet from the ingress node to the delegation node to enable the delegation node to impose the label onto the label stack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.