Packet transfer method and node apparatus
US8184634B2 · kind B2 · utility
2Cited by
1References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 15, 2009 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Nov 26, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2212/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a L2VPN, where Ethernet frames are encapsulated and transferred, when an edge node disposed at an entrance of the L2VPN encapsulates an Ethernet frame, the data type of the payload of the Ethernet frame is checked. If the payload data type includes time-to-live (TTL) information, whether to encapsulate or discard the frame is judged according to the TTL value. One material for judging whether to discard the frame is a condition that the TTL value is larger than ‘1’ and smaller than a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.