PATH OBTAINING METHOD, TRANSMITTING DEVICE, RECEIVING DEVICE AND THE NETWORK SYSTEM THEREOF

摘要

A path obtaining method includes that of: receiving the related information for mapping traffic engineering class (TE-Class), wherein the related information for mapping the TE-Class includes class type (CT) and priority; and obtaining a label switched path (LSP) based on a local TE-Class, when the local TE-Class mapped by the CT and priority exists.