Method and apparatus for detecting support for a protocol defining supplemental headers

The invention discloses various methods and systems for detecting whether a network device supports a protocol, which defines a supplemental header (302). One method involves detecting a value within a preamble (202) generated by a sending device and verifying that a header format of a header (302),...

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Bibliographic Details
Main Author MUSTAQ FAISAL,DONTU SITARAM,BHIDE SHREERAM,GOLSHAN ALI,SMITH MICHAEL R
Format Patent
LanguageEnglish
Published 16.05.2007
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:The invention discloses various methods and systems for detecting whether a network device supports a protocol, which defines a supplemental header (302). One method involves detecting a value within a preamble (202) generated by a sending device and verifying that a header format of a header (302), also generated by the sending device, conforms to a header format definition of a protocol. The header format definition of the protocol defines a supplemental header (302). The preamble (202) can be an Ethernet preamble. In one embodiment, the preamble is a converged data link (CDL) preamble or other type of preamble that is used to convey operation, administration and management (OAM) information.
Bibliography:Application Number: CN200580019077