Associated tunnels terminating on different packet switches and relaying packets via different tunnel combinations
US8400910B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2007 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Oct 3, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Packet switch operating methods and packet switches forward a first packet to a first packet switch via an active primary tunnel terminating on the first packet switch. The primary tunnel is associated with an inactive backup tunnel terminating on a different second packet switch. The methods and packet switches also deactivate the primary tunnel, activate the backup tunnel, and forward a second packet to the second packet switch via the activated backup tunnel. Network operating methods relay a first packet to a first one of a plurality of destination packet switches via two or more different tunnels in a first combination. The methods and packets switches also deactivate one of the tunnels of the first combination without deactivating any other tunnel of the first combination and relay a second packet to a second one of the packet switches via two or more different tunnels in a second combination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.