Adaptive transition between layer three and layer four network tunnels
US8316226B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2005 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Mar 15, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/166
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Adaptive failover occurs between a Layer Three (L3) based network tunnel and a Layer Four (L4) based network tunnel. An example of a L4 based network tunnel is a Secure Sockets Layer (SSL) tunnel and an example of a L3 based network tunnel is an Internet Protocol Security (IPSec) tunnel. SSL tunnels work through most firewalls and proxies, but may introduce latency and other performance problems. IPSec tunnels provide a more efficient performance, but may not work through some firewalls and proxies. The techniques include dynamically selecting a tunneling protocol in order to achieve a more efficient network tunnel performance when possible while maintaining consistent L3 connectivity from a variety of remote network environments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.