US 11,695,472 B2
Partial survivability for multi-carrier and multi-module optical interfaces
Trevor John Ibach, Manotick (CA); Rahim Amarsi, Ottawa (CA); and Sebastien Gareau, Ottawa (CA)
Assigned to Ciena Corporation, Hanover, MD (US)
Filed by Ciena Corporation, Hanover, MD (US)
Filed on Nov. 3, 2020, as Appl. No. 17/87,969.
Application 17/087,969 is a continuation of application No. 16/405,101, filed on May 7, 2019, granted, now 10,826,600, issued on Nov. 3, 2020.
Application 16/405,101 is a continuation of application No. 15/290,653, filed on Oct. 11, 2016, granted, now 10,333,614, issued on Jun. 25, 2019.
Prior Publication US 2021/0075504 A1, Mar. 11, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 10/00 (2013.01); H04J 14/00 (2006.01); H04B 10/03 (2013.01); H04B 10/079 (2013.01); H04J 3/14 (2006.01); H04J 3/16 (2006.01)
CPC H04B 10/03 (2013.01) [H04B 10/0793 (2013.01); H04J 3/14 (2013.01); H04J 3/1652 (2013.01)] 20 Claims
OG exemplary drawing
 
11. A network element comprising:
one or more ports forming a plurality of optical carriers (Optical Tributary Signal (OTSi)) that transport a single Optical Transport Unit Cn (OTUCn) in a network; and
circuitry communicatively coupled to the one or more ports and configured to
responsive to a determination of which services in a single Optical Transport Unit Cn (OTUCn) that is transmitted via the plurality of optical carriers are affected by a failure of one or more optical carriers of the plurality of optical carriers, cause continued operation of the single OTUCn with unaffected one or more optical carriers of the plurality of optical carriers, wherein the uneffected one or more optical carriers are on a same of one or more links in the network as the failed one or more optical carriers, and
cause adjustment of some or all of the services from the failed one or more optical carriers to the unaffected one or more optical carriers including adjustment of at least one service already on the unaffected one or more optical carriers.