Patent ID: 7881186
Filing Date: 2011-02-01
Classification: H04L

Abstract:
1. A method for protecting high layer service in a multi-layer communication equipment of a communication network, comprising the following process: first, a low layer processing module provides a high layer processing module with a low layer transmission passage; second, the high layer processing module extracts and inserts high layer service of the multilayer communication equipment from the low layer transmission passage, avoiding changing the service between upstream node and downstream node after passing the high layer processing module of the multi-layer communication equipment; third, when the high layer processing module detecting said high layer processing module encountering a trouble, it will inform the low layer processing module; fourth, when the low layer processing module detecting that the high layer processing module encounters the trouble, the low layer transmission passage between the low layer processing module and the high layer processing module is broken, and the low layer processing module connects the broken passage to set up a bypass without checking whether the lower layer processing module encounters a trouble, so as to isolate the high layer processing module encountering a trouble.