Method for expanding the service VLAN space of a provider network
US7768918B2 · kind B2 · utility
1Cited by
5References
5Claims
0Family size
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Key dates
| Filing date | Jun 28, 2006 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Aug 31, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/4666
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for expanding a service VLAN space of a provider network is provided. A bit number occupied by a taq protocol identifier (TPID) in a TPID field is reduced to leave a plurality of spare bits. The spare bits of the TPID field is then used to represent a first portion of a service VLAN identifier. A VLAN identifier field of a tag control information (TCI) field is used to represent a second portion of the service VLAN identifier. The first and second portions are then combined to obtain the service VLAN identifier of the packets completely.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.