Transitioning a virtual interface from one tunnel to another tunnel
US7948874B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2007 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Jan 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/354
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Packet switch operating methods and packet switches provision a plurality of tunnels on a packet switch by associating each of the plurality of tunnels with a packet switch port and by configuring the packet switch to modify packets relayed by the tunnel to include a transport identifier associated with the tunnel. The tunnels of the plurality relay packets when permitted by a tunnel index. The plurality of tunnels and the tunnel index are associated with a virtual interface. The methods and packet switches also permit a first tunnel of the plurality of tunnels to relay packets by configuring the tunnel index to indicate the first tunnel. The tunnel index indicates only one tunnel. The methods and packet switches also enable a second tunnel of the plurality of tunnels to relay packets by configuring the tunnel index to indicate the second tunnel, thereby preventing the first tunnel from relaying packets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.