Communication system with hybrid protection at multiple OSI...

Details Communication system with hybrid protection at multiple OSI... Communication system with hybrid protection at multiple OSI...

2007-12-18

2007-12-18

Pascal, Leslie (Department: 2613)

Optical communications

Fault recovery

Bypass inoperative element

C398S003000

Reexamination Certificate

active

10924570

ABSTRACT:
A communication system couples communication devices using optical switches and links. The optical switches provide OSI Layer 1 restoration in response to a fault. The communication devices provide OSI layer 2/3 restoration in response to the fault after OSI Layer 1 protection is complete.

REFERENCES:
patent: 7209439 (2007-04-01), Rawlins et al.
patent: 2002/0181479 (2002-12-01), Okuno

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