REVENUE (Tables)
 6 Months Ended
Apr. 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 April 29, 2023
Networking PlatformsPlatform Software and ServicesBlue Planet Automation Software and ServicesGlobal ServicesTotal
Product lines:
Converged Packet Optical
$784,549 $— $— $— $784,549 
Routing and Switching130,310 — — — 130,310 
Platform Software and Services
— 69,443 — — 69,443 
Blue Planet Automation Software and Services
— — 20,567 — 20,567 
Maintenance Support and Training
— — — 73,160 73,160 
Installation and Deployment
— — — 39,486 39,486 
Consulting and Network Design
— — — 15,140 15,140 
Total revenue by product line
$914,859 $69,443 $20,567 $127,786 $1,132,655 
Timing of revenue recognition:
Products and services at a point in time
$914,859 $13,447 $7,329 $15,412 $951,047 
Services transferred over time— 55,996 13,238 112,374 181,608 
Total revenue by timing of revenue recognition
$914,859 $69,443 $20,567 $127,786 $1,132,655 



Quarter Ended April 30, 2022
Networking PlatformsPlatform Software and ServicesBlue Planet Automation Software and ServicesGlobal ServicesTotal
Product lines:
Converged Packet Optical
$625,294 $— $— $— $625,294 
Routing and Switching109,186 — — — 109,186 
Platform Software and Services
— 69,157 — — 69,157 
Blue Planet Automation Software and Services
— — 16,881 — 16,881 
Maintenance Support and Training
— — — 74,019 74,019 
Installation and Deployment
— — — 41,430 41,430 
Consulting and Network Design
— — — 13,260 13,260 
Total revenue by product line
$734,480 $69,157 $16,881 $128,709 $949,227 
Timing of revenue recognition:
Products and services at a point in time
$734,480 $21,743 $4,036 $13,469 $773,728 
Services transferred over time
— 47,414 12,845 115,240 175,499 
Total revenue by timing of revenue recognition
$734,480 $69,157 $16,881 $128,709 $949,227 
Six Months Ended April 29, 2023
Networking PlatformsPlatform Software and ServicesBlue Planet Automation Software and ServicesGlobal ServicesTotal
Product lines:
Converged Packet Optical
$1,520,183 $— $— $— $1,520,183 
Routing and Switching249,814 — — — 249,814 
Platform Software and Services
— 142,888 — — 142,888 
Blue Planet Automation Software and Services
— — 35,973 — 35,973 
Maintenance Support and Training
— — — 141,051 141,051 
Installation and Deployment
— — — 74,061 74,061 
Consulting and Network Design
— — — 25,206 25,206 
Total revenue by product line
$1,769,997 $142,888 $35,973 $240,318 $2,189,176 
Timing of revenue recognition:
Products and services at a point in time
$1,769,997 $32,311 $11,312 $24,667 $1,838,287 
Services transferred over time— 110,577 24,661 215,651 350,889 
Total revenue by timing of revenue recognition
$1,769,997 $142,888 $35,973 $240,318 $2,189,176 

Six months ended April 30, 2022
Networking PlatformsPlatform Software and ServicesBlue Planet Automation Software and ServicesGlobal ServicesTotal
Product lines:
Converged Packet Optical
$1,166,230 $— $— $— $1,166,230 
Routing and Switching194,896 — — — 194,896 
Platform Software and Services
— 142,074 — — 142,074 
Blue Planet Automation Software and Services
— — 37,992 — 37,992 
Maintenance Support and Training
— — — 146,509 146,509 
Installation and Deployment
— — — 81,800 81,800 
Consulting and Network Design
— — — 24,169 24,169 
Total revenue by product line
$1,361,126 $142,074 $37,992 $252,478 $1,793,670 
Timing of revenue recognition:
Products and services at a point in time
$1,361,126 $51,424 $12,810 $21,960 $1,447,320 
Services transferred over time
— 90,650 25,182 230,518 346,350 
Total revenue by timing of revenue recognition
$1,361,126 $142,074 $37,992 $252,478 $1,793,670 
For the periods below, Ciena’s geographic distribution of revenue was as follows (in thousands):
Quarter EndedSix Months Ended
April 29,April 30,April 29,April 30,
2023202220232022
Geographic distribution:
Americas
$794,359 $700,840 $1,559,455 $1,295,984 
EMEA
173,414 145,106 326,218 295,891 
APAC
164,882 103,281 303,503 201,795 
Total revenue by geographic distribution
$1,132,655 $949,227 $2,189,176 $1,793,670 
For the periods below, the only customers that accounted for at least 10% of Ciena’s revenue were as follows (in thousands):
Quarter EndedSix Months Ended
 April 29,April 30,April 29,April 30,
 2023202220232022
Web-scale provider$123,452 n/a$244,779 n/a
AT&Tn/a103,189 251,329 214,065 
Total$123,452 $103,189 $496,108 $214,065 
_____________________________________
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 (in thousands):
Balance at April 29, 2023Balance at October 29, 2022
Accounts receivable, net$1,036,688 $920,772 
Contract assets for unbilled accounts receivable, net$180,020 $156,039 
Deferred revenue$270,625 $200,235 
As of the dates indicated, deferred revenue is comprised of the following (in thousands):
April 29,
2023		October 29,
2022
Products$33,914 $19,814 
Services236,711 180,421 
 Total deferred revenue270,625 200,235 
Less current portion(202,818)(137,899)
Long-term deferred revenue$67,807 $62,336