Cascaded connection matrices in a distributed cross-connection system

Abstract

A method and system for interconnecting multiple distributed components in a communication network is provided. The design includes a multiple order cross connection fabric employed to interconnect multiple orders of data with at least one distributed component in the communication network. The design may further include at least one order of path termination and adaptation connection, where the at least one order of path termination and adaptation connection providing an interface between the multiple order cross connection fabric and a data management system. The design may be implemented in a SONET/SDH environment.

What is claimed is: 
     
       1. A cross connect arrangement used to connect a plurality of components in a communication network, comprising:
 a high order termination and adaptation path coupled to transmit and receive high order data and terminate and adapt components of said high order data;   a low order termination and adaptation path coupled to transmit and receive low order data and terminate and adapt components of said low order data;   a low order path monitor configured to monitor the low order termination and adaptation path for any absence of appropriate low order data; and   an interconnection with the plurality of components,   wherein said cross connect arrangement uniformly addresses high order data processing and low order data processing.   
     
     
       2. The arrangement of  claim 1 , further comprising a high order combined termination-adaptation element configured to transmit high order data to and receive high order data from the high order termination and adaptation path and interface with a data management system. 
     
     
       3. The arrangement of  claim 1 , further comprising a low order combined termination-adaptation element configured to transmit low order data to and receive low order data from the low order termination and adaptation path and interface with a data management system. 
     
     
       4. The arrangement of  claim 2 , further comprising a high order combined termination-adaptation element configured to transmit high order data to and receive low order data from the high order termination and adaptation path and interface with the data management system. 
     
     
       5. The arrangement of  claim 1 , wherein said arrangement is configured to operate on a cascaded arrangement of connection matrices. 
     
     
       6. The arrangement of  claim 5 , wherein operation on the cascaded arrangement of connection matrices comprises storing working and protection channel connection maps. 
     
     
       7. The arrangement of  claim 5 , wherein operation on the cascaded arrangement of connection matrices comprises a microengine enabled controller configured to reprogram a connection map, the microengine enabled controller driven by a cascaded connection map configuration. 
     
     
       8. A component in a communication network, comprising:
 a multiple order cross connection fabric employed to interconnect multiple orders of data with at least one distributed component in the communication network;   at least one order of path termination and adaptation connection, said at least one order of path termination and adaptation connection providing an interface between the multiple order cross connection fabric and a data management system; and   a low order combined termination-adaptation element communicatively coupled to the multiple order cross connection fabric and configured to transmit low order data to and receive low order data from a low order termination and adaptation path and interface with the data management system,   wherein the multiple order cross connection fabric uniformly addresses high order data processing and low order data processing.   
     
     
       9. The component of  claim 8 , wherein said at least one order of path termination and adaptation connection comprises a low order path termination and adaptation connection. 
     
     
       10. The component of  claim 9 , wherein said at least one order of path termination and adaptation connection further comprises a high order path termination and adaptation connection. 
     
     
       11. The component of  claim 9 , wherein the low order path termination and adaptation connection comprises a low order path monitor configured to monitor the low order termination and adaptation path for any absence of appropriate low order data. 
     
     
       12. The component of  claim 10 , wherein the high order path termination and adaptation connection further comprises a high order combined termination-adaptation element configured to transmit high order data to and receive high order data from a high order termination and adaptation path and interface with a data management system. 
     
     
       13. The component of  claim 8 , wherein said component is configured to operate on a cascaded arrangement of connection matrices. 
     
     
       14. The component of  claim 13 , wherein operation on the cascaded arrangement of connection matrices comprises storing working and protection channel connection maps. 
     
     
       15. The component of  claim 13 , wherein operation on the cascaded arrangement of connection matrices comprises a microengine enabled controller configured to reprogram a connection map, the microengine enabled controller driven by a cascaded connection map configuration. 
     
     
       16. A system comprising:
 at least one component;   at least one line card comprising:
 a low order path monitor configured to monitor a low order termination and adaptation path for any absence of appropriate low order data; 
 a framer; and 
 a controller; and 
   a fabric configured to provide intercommunication between the line card and the at least one component;   wherein the fabric comprises a multiple order cross connection fabric employed to interconnect multiple orders of data with at least one component and at least one order of path termination and adaptation connection, said at least one order of path termination and adaptation connection providing an interface between the multiple order cross connection fabric and a data management system,   wherein the multiple order cross connection fabric uniformly addresses high order data processing and low order data processing.   
     
     
       17. The system of  claim 16 , wherein the fabric is compatible with TFI-5. 
     
     
       18. The system of  claim 16 , wherein the fabric is compatible with CSIX. 
     
     
       19. The system of  claim 16 , wherein the line card is coupled to provide an interface for a Fibre Channel compatible network. 
     
     
       20. The system of  claim 16 , wherein the line card is coupled to provide an interface for an Ethernet compatible network. 
     
     
       21. The system of  claim 16 , wherein the line card is coupled to perform add-drop multiplexing. 
     
     
       22. A cross connect arrangement used to connect a plurality of components in a communication network, comprising:
 a high order termination and adaptation path coupled to transmit and receive high order data and terminate and adapt components of said high order data;   a high order combined termination-adaptation element configured to transmit high order data to and receive high order data from the high order termination and adaptation path and interface with a data management system;   a low order termination and adaptation path coupled to transmit and receive low order data and terminate and adapt components of said low order data; and   an interconnection with the plurality of components,   wherein said cross connect arrangement uniformly addresses high order data processing and low order data processing.   
     
     
       23. A networking component, comprising:
 a repair element to receive, from transport overhead bytes in a data flow in a transport system, health codes communicated in-band in the data flow, wherein:
 the health codes identifying health conditions of a plurality of transport channels in the transport system; and 
 the health conditions are identified by priority codes ranging from defects, alarms to no defects and alarms; 
   channel health code storage unit to store the health codes; and   a micro engine to
 analyze the health codes to measure and determine transport channel health; 
 determine a reprovisioning of connection maps within the repair element; and 
 communicate the reprovisioned connection maps to the repair element.  
   
     
     
       24. The networking component of claim 23, wherein the health codes include representations of status, alarm, and defect.  
     
     
       25. The networking component of claim 23, wherein the networking component is not part of the cross connect matrix.  
     
     
       26. The networking component of claim 23, wherein the micro engine to apply a filter to the health codes to prevent erroneous health codes from causing undesired protection switches to occur.  
     
     
       27. The networking component of claim 26, wherein the filter is a persistent filter.  
     
     
       28. The networking component of claim 27, wherein the micro engine is configured to accept a health code for processing after a count of consecutive frames having the health code is reached.  
     
     
       29. The networking component of claim 23, wherein the repair element responsible for re-provisioning the failed connection is distally located from the networking component.