REVENUE (Tables)

12 Months Ended

Oct. 30, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of revenue

The tables below set forth Ciena’s disaggregated revenue for the respective period (in thousands):

	Year Ended October 30, 2021
	Networking Platforms		Platform Software and Services		Blue Planet Automation Software and Services		Global Services		Total
Product lines:
Converged Packet Optical	$	2,553,509	$	—	$	—	$	—	$	2,553,509
Routing and Switching	271,796		—		—		—		271,796
Platform Software and Services	—		229,588		—		—		229,588
Blue Planet Automation Software and Services	—		—		77,247		—		77,247
Maintenance Support and Training	—		—		—		283,350		283,350
Installation and Deployment	—		—		—		171,489		171,489
Consulting and Network Design	—		—		—		33,705		33,705
Total revenue by product line	$	2,825,305	$	229,588	$	77,247	$	488,544	$	3,620,684
Timing of revenue recognition:
Products and services at a point in time	$	2,825,305	$	80,359	$	27,621	$	14,923	$	2,948,208
Products and services transferred over time	—		149,229		49,626		473,621		672,476
Total revenue by timing of revenue recognition	$	2,825,305	$	229,588	$	77,247	$	488,544	$	3,620,684

	Year Ended October 31, 2020
	Networking Platforms		Platform Software and Services		Blue Planet Automation Software and Services		Global Services		Total
Product lines:
Converged Packet Optical	$	2,547,647	$	—	$	—	$	—	$	2,547,647
Routing and Switching	267,416		—		—		—		267,416
Platform Software and Services	—		197,809		—		—		197,809
Blue Planet Automation Software and Services	—		—		62,632		—		62,632
Maintenance Support and Training	—		—		—		269,354		269,354
Installation and Deployment	—		—		—		152,003		152,003
Consulting and Network Design	—		—		—		35,296		35,296
Total revenue by product line	$	2,815,063	$	197,809	$	62,632	$	456,653	$	3,532,157
Timing of revenue recognition:
Products and services at a point in time	$	2,815,063	$	69,099	$	19,583	$	14,363	$	2,918,108
Products and services transferred over time	—		128,710		43,049		442,290		614,049
Total revenue by timing of revenue recognition	$	2,815,063	$	197,809	$	62,632	$	456,653	$	3,532,157

	Year Ended November 2, 2019
	Networking Platforms		Platform Software and Services		Blue Planet Automation Software and Services		Global Services		Total
Product lines:
Converged Packet Optical	$	2,562,841	$	—	$	—	$	—	$	2,562,841
Routing and Switching	348,477		—		—		—		348,477
Platform Software and Services	—		155,376		—		—		155,376
Blue Planet Automation Software and Services	—		—		54,555		—		54,555
Maintenance Support and Training	—		—		—		261,337		261,337
Installation and Deployment	—		—		—		148,233		148,233
Consulting and Network Design	—		—		—		41,312		41,312
Total revenue by product line	$	2,911,318	$	155,376	$	54,555	$	450,882	$	3,572,131
Timing of revenue recognition:
Products and services at a point in time	$	2,911,318	$	55,530	$	17,697	$	18,802	$	3,003,347
Products and services transferred over time	—		99,846		36,858		432,080		568,784
Total revenue by timing of revenue recognition	$	2,911,318	$	155,376	$	54,555	$	450,882	$	3,572,131

For the periods below, Ciena’s geographic distribution of revenue was as follows (in thousands):

	Year Ended
	October 30, 2021		October 31, 2020		November 2, 2019
Geographic distribution:
Americas	$	2,525,619	$	2,469,278	$	2,503,913
EMEA	670,462		591,468		566,718
APAC	424,603		471,411		501,500
Total revenue by geographic distribution	$	3,620,684	$	3,532,157	$	3,572,131

For the periods below, the only customers that accounted for at least 10% of Ciena’s revenue were as follows (in thousands):

	October 30, 2021		October 31, 2020		November 2, 2019
AT&T	$	447,403	$	373,163	$	388,704
Verizon	n/a		n/a		459,787
Web-scale provider	n/a		n/a		370,577
Total	$	447,403	$	373,163	$	1,219,068

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n/a Denotes revenue representing less than 10% of total revenue for the period

Contract balances

The following table provides information about receivables, contract assets and contract liabilities (deferred revenue) from contracts with customers (in thousands):

	Balance at October 30, 2021		Balance at October 31, 2020
Accounts receivable, net	$	884,958	$	719,405
Contract assets for unbilled accounts receivable, net	$	101,355	$	85,843
Deferred revenue	$	175,464	$	158,363

As of the dates indicated, deferred revenue is comprised of the following (in thousands):

	October 30, 2021		October 31, 2020
Products	$	12,859	$	17,534
Services	162,605		140,829
	175,464		158,363
Less current portion	(118,007)		(108,700)
Long-term deferred revenue	$	57,457	$	49,663