Electrical computers and digital processing systems: multicomput – Computer network managing – Computer network monitoring
Reexamination Certificate
2007-05-15
2007-05-15
Eng, David Y. (Department: 2155)
Electrical computers and digital processing systems: multicomput
Computer network managing
Computer network monitoring
Reexamination Certificate
active
10299417
ABSTRACT:
An object of the present invention is to propose a method of effecting a protection control for use in a communication network which makes it possible to avoid conflict between a protection switch of a SONET apparatus and a protection switch of an RPR apparatus. To this end, when ring switching of the BLSR is validated, the protection function of the RPR apparatus is invalidated while when the protection function of the RPR apparatus is validated, the ring switching of the BLSR is invalidated. The apparatus of the present invention can be applied to a network in which a ring network formed of a BLSR is connected with an RPR apparatus.
REFERENCES:
patent: 6850486 (2005-02-01), Saleh et al.
patent: 6856627 (2005-02-01), Saleh et al.
Bellcore Issue 4, Dec. 1998; GR-1230-CORE.
Bellcore Issue 3, Sep. 2000; GR-253-CORE.
Ishioka Yuzuru
Kimura Gaku
Eng David Y.
Katten Muchin & Rosenman LLP
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