Methods and apparatus for improved communications networks

H - Electricity – 04 – J

Patent

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H04J 3/08 (2006.01) H04B 10/10 (2006.01) H04J 3/06 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2493114

Erroneous data due to faults are prevented from propagating through a distributed network node having diversely routed communications links by using a fault masking technique that eliminates the 60 ms of error propagation time associated with SONET networks. The fault masking technique can also prevent random bit errors from propagating through the distributed network node. A frame alignment technique used in the network node is scalable for very wide words (e.g., 128 bits) for use with high speed optical communications protocols, such as OC-192.

La propagation de données erronées dues aux défauts est évitée au moyen d'un noeud de réseau réparti présentant des liaisons de communication différemment acheminées grâce à une technique de masquage de défaut qui élimine les 60 ms de durée de propagation d'erreur associée aux réseaux SONET. Cette technique de masquage de défaut empêche également la propagation d'erreurs sur les bits aléatoires à travers le noeud de réseau réparti. Une technique de verrouillage de trame utilisée dans le noeud de réseau est échelonnable pour les mots très larges (par exemple 128 bits) à utiliser dans les protocoles de communication optique à vitesse élevée, tels que OC-192.

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