Packet processing method and router
US9942136B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 7, 2015 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Apr 13, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/825
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This application discloses a packet processing method and an LSR. The method includes: receiving, by an Ingress LSR of a first MPLS tunnel, a first notification packet that is based on an IGP, where the first notification packet includes an ELC flag, which is used to indicate that the first Egress LSR has ELC; after learning from the first notification packet that the first Egress LSR has ELC, inserting a label into a first packet, to generate a second packet, where the label forms an MPLS label stack, which includes, from bottom to top, a first EL, a first ELI, and a first TL; and sending the second packet to the first Egress LSR through the first MPLS tunnel. According to the solutions of this invention, a Transit LSR of the first MPLS tunnel may perform load balancing when forwarding the second packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.