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REVENUE (Tables) | 12 Months Ended
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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 |
________________________________
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 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 + Details
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