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REVENUE (Tables)
 9 Months Ended
Jul. 29, 2023
Revenue from Contract with Customer [Abstract]  
Schedule of Disaggregation of Revenue The tables below set forth Ciena’s disaggregated revenue for the periods indicated (in thousands):
Quarter Ended July 29, 2023
Networking PlatformsPlatform Software and ServicesBlue Planet Automation Software and ServicesGlobal ServicesTotal
Product lines:
Converged Packet Optical
$718,997 $— $— $— $718,997 
Routing and Switching127,563 — — — 127,563 
Platform Software and Services
— 78,880 — — 78,880 
Blue Planet Automation Software and Services
— — 13,167 — 13,167 
Maintenance Support and Training
— — — 72,887 72,887 
Installation and Deployment
— — — 46,840 46,840 
Consulting and Network Design
— — — 9,552 9,552 
Total revenue by product line
$846,560 $78,880 $13,167 $129,279 $1,067,886 
Timing of revenue recognition:
Products and services at a point in time
$846,560 $15,980 $2,832 $11,886 $877,258 
Services transferred over time— 62,900 10,335 117,393 190,628 
Total revenue by timing of revenue recognition
$846,560 $78,880 $13,167 $129,279 $1,067,886 



Quarter Ended July 30, 2022
Networking PlatformsPlatform Software and ServicesBlue Planet Automation Software and ServicesGlobal ServicesTotal
Product lines:
Converged Packet Optical
$563,837 $— $— $— $563,837 
Routing and Switching100,741 — — — 100,741 
Platform Software and Services
— 63,483 — — 63,483 
Blue Planet Automation Software and Services
— — 17,342 — 17,342 
Maintenance Support and Training
— — — 72,760 72,760 
Installation and Deployment
— — — 38,704 38,704 
Consulting and Network Design
— — — 11,114 11,114 
Total revenue by product line
$664,578 $63,483 $17,342 $122,578 $867,981 
Timing of revenue recognition:
Products and services at a point in time
$664,578 $15,230 $4,632 $9,408 $693,848 
Services transferred over time
— 48,253 12,710 113,170 174,133 
Total revenue by timing of revenue recognition
$664,578 $63,483 $17,342 $122,578 $867,981 

Nine Months Ended July 29, 2023
Networking PlatformsPlatform Software and ServicesBlue Planet Automation Software and ServicesGlobal ServicesTotal
Product lines:
Converged Packet Optical
$2,239,180 $— $— $— $2,239,180 
Routing and Switching377,378 — — — 377,378 
Platform Software and Services
— 221,768 — — 221,768 
Blue Planet Automation Software and Services
— — 49,139 — 49,139 
Maintenance Support and Training
— — — 213,938 213,938 
Installation and Deployment
— — — 120,901 120,901 
Consulting and Network Design
— — — 34,758 34,758 
Total revenue by product line
$2,616,558 $221,768 $49,139 $369,597 $3,257,062 
Timing of revenue recognition:
Products and services at a point in time
$2,616,558 $48,290 $14,143 $36,553 $2,715,544 
Services transferred over time— 173,478 34,996 333,044 541,518 
Total revenue by timing of revenue recognition
$2,616,558 $221,768 $49,139 $369,597 $3,257,062 

Nine months ended July 30, 2022
Networking PlatformsPlatform Software and ServicesBlue Planet Automation Software and ServicesGlobal ServicesTotal
Product lines:
Converged Packet Optical
$1,730,066 $— $— $— $1,730,066 
Routing and Switching295,638 — — — 295,638 
Platform Software and Services
— 205,557 — — 205,557 
Blue Planet Automation Software and Services
— — 55,334 — 55,334 
Maintenance Support and Training
— — — 219,270 219,270 
Installation and Deployment
— — — 120,504 120,504 
Consulting and Network Design
— — — 35,282 35,282 
Total revenue by product line
$2,025,704 $205,557 $55,334 $375,056 $2,661,651 
Timing of revenue recognition:
Products and services at a point in time
$2,025,704 $66,655 $17,442 $31,368 $2,141,169 
Services transferred over time
— 138,902 37,892 343,688 520,482 
Total revenue by timing of revenue recognition
$2,025,704 $205,557 $55,334 $375,056 $2,661,651 
For the periods indicated, Ciena’s geographic distribution of revenue was as follows (in thousands):
Quarter EndedNine Months Ended
July 29,July 30,July 29,July 30,
2023202220232022
Geographic distribution:
Americas
$749,479 $617,366 $2,308,934 $1,913,350 
EMEA
152,834 124,185 479,053 420,075 
APAC
165,573 126,430 469,075 328,226 
Total revenue by geographic distribution
$1,067,886 $867,981 $3,257,062 $2,661,651 
For the periods indicated, the only customers that accounted for at least 10% of Ciena’s revenue were as follows (in thousands):
Quarter EndedNine Months Ended
 July 29,July 30,July 29,July 30,
 2023202220232022
Web-scale provider$124,897 n/a$369,678 n/a
AT&Tn/a100,293 $357,382 314,358 
Verizonn/a108,495 n/a273,158 
Total$124,897 $208,788 $727,060 $587,516 
_____________________________________
n/a    Denotes revenue representing less than 10% of total revenue for the period
Schedule of Contract Balances The following table provides information about receivables, contract assets and contract liabilities (deferred revenue) from contracts with customers as of the dates indicated (in thousands):
Balance at July 29, 2023Balance at October 29, 2022
Accounts receivable, net$997,373 $920,772 
Contract assets for unbilled accounts receivable, net$142,305 $156,039 
Deferred revenue$259,977 $200,235 
As of the dates indicated, deferred revenue is comprised of the following (in thousands):
July 29,
2023		October 29,
2022
Products$34,102 $19,814 
Services225,875 180,421 
 Total deferred revenue259,977 200,235 
Less current portion(188,104)(137,899)
Long-term deferred revenue$71,873 $62,336