Ethernet signal transport method and scheduling method, and apparatus and system thereof

Abstract

An Ethernet signal transport method includes: inserting, by a first network device, path monitoring information into a position that is a preset bit length away from an alignment marker (AM) in a physical coding sublayer lane (PCSL) of an Ethernet signal; and sending, by the first network device to at least one second network device, a signal bearing the PCSL into which the path monitoring information is inserted.

What is claimed is: 
     
         1 . An Ethernet signal transport method, comprising:
 inserting, by a first network device, path monitoring information into a position that is a preset bit length away from an alignment marker (AM) in a physical coding sublayer lane (PCSL) of an Ethernet signal; and   sending, by the first network device to at least one second network device, a signal bearing the PCSL into which the path monitoring information is inserted.   
     
     
         2 . The method according to  claim 1 , wherein the path monitoring information is carried by an overhead bit block, wherein the overhead bit block comprises at least one bit block. 
     
     
         3 . The method according to  claim 1 , wherein the path monitoring information comprises a regenerator section (RS) overhead, wherein the RS overhead is used to monitor a status of signal transmission between signal regenerating terminals. 
     
     
         4 . The method according to  claim 3 , wherein the path monitoring information further comprises a multiplex section (MS) overhead, wherein the MS overhead is used to monitor a status of signal transmission between two multiplexers. 
     
     
         5 . The method according to  claim 1 , wherein the path monitoring information further comprises additional request information, wherein the additional request information is used to request that the at least one second network device monitor information of a corresponding type;
 wherein the monitored information comprises one or more of the following: trail trace identifier (TTI) information, path type and fault location (FTFL) information, payload structure identifier (PSI) information, or broadband adjustment-related information.   
     
     
         6 . The method according to  claim 1 , wherein the path monitoring information is inserted by the first network device into positions that are the preset bit length away from each AM in the PCSL of the Ethernet signal; and
 wherein the method further comprises: performing, by the first network device, scrambling on the path monitoring information.   
     
     
         7 . An Ethernet signal transport apparatus, comprising:
 a processor configured to insert path monitoring information into a position that is a preset bit length away from an alignment marker (AM) in a physical coding sublayer lane (PCSL) of an Ethernet signal; and   a transmitter configured to send, to at least one second network device, a signal bearing the PCSL into which the path monitoring information is inserted.   
     
     
         8 . The apparatus according to  claim 7 , wherein the path monitoring information is carried by an overhead bit block, wherein the overhead bit block comprises at least one bit block. 
     
     
         9 . The apparatus according to  claim 7 , wherein the path monitoring information comprises a regenerator section (RS) overhead, wherein the RS overhead facilitates monitoring of a status of signal transmission between signal regenerating terminals. 
     
     
         10 . The apparatus according to  claim 9 , wherein the path monitoring information further comprises a multiplex section (MS) overhead, wherein the MS overhead facilitates monitoring of a status of signal transmission between two multiplexers. 
     
     
         11 . The apparatus according to  claim 7 , wherein the processor is configured to:
 insert the path monitoring information into positions that are the preset bit length away from each AM in the PCSL of the Ethernet signal; and   perform scrambling on the path monitoring information.