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SEGMENTS AND ENTITY-WIDE DISCLOSURES
 3 Months Ended
Feb. 01, 2025
Segment Reporting [Abstract]  
SEGMENTS AND ENTITY-WIDE DISCLOSURES SEGMENTS AND ENTITY-WIDE DISCLOSURES
Segment Reporting
Ciena has the following operating segments for reporting purposes: (i) Networking Platforms; (ii) Platform Software and Services; (iii) Blue Planet Automation Software and Services; and (iv) Global Services.

Segment Profit (Loss)
Segment profit (loss) is determined based on internal performance measures used by Ciena’s chief executive officer to assess the performance of each operating segment in a given period. In connection with that assessment, the chief executive officer excludes the following items: selling and marketing costs; general and administrative costs; significant asset impairments and restructuring costs; amortization of intangible assets; interest and other income, net; interest expense; loss on extinguishment and modification of debt; and provision for income taxes.
The table below sets forth Ciena’s segment profit (loss) and the reconciliation to net income for the periods indicated (in thousands):
Quarter Ended
 February 1,January 27,
 20252024
Segment profit (loss):
Networking Platforms$167,079 $183,775 
Platform Software and Services63,125 58,004 
Blue Planet Automation Software and Services4,576 (7,069)
Global Services44,378 44,983 
Total segment profit279,158 279,693 
Less: Non-performance operating expenses 
  Selling and marketing136,504 128,158 
  General and administrative53,902 54,683 
  Significant asset impairments and restructuring costs1,544 4,971 
  Amortization of intangible assets6,545 7,252 
Add: Other non-performance financial items
Interest and other income, net11,578 10,650 
Interest expense(22,918)(23,776)
Loss on extinguishment and modification of debt(729)— 
Less: Provision for income taxes24,022 21,956 
Net income$44,572 $49,547 

Entity-Wide Reporting
Ciena's long-lived assets, including equipment, building, furniture and fixtures, operating right-of-use (“ROU”) assets, finite-lived intangible assets, and maintenance spares, are not reviewed by Ciena's chief operating decision maker for purposes of evaluating performance and allocating resources. As of February 1, 2025, equipment, building, furniture and fixtures, net, totaled $320.4 million, and operating ROU assets totaled $25.1 million both of which support asset groups within Ciena’s four operating segments and unallocated selling and general and administrative activities. As of February 1, 2025, finite-lived intangible assets, goodwill, and maintenance spares are assigned to asset groups within the following segments (in thousands):
February 1, 2025
Networking PlatformsPlatform Software and ServicesBlue Planet Automation Software and ServicesGlobal ServicesTotal
Other intangible assets, net$151,788 — 4,417 — $156,205 
Goodwill$199,066 156,191 89,049 — $444,306 
Maintenance spares, net$— — — 82,846 $82,846 
The following table represents Ciena’s geographic distribution of equipment, building, furniture and fixtures, net and operating ROU assets, specifically identifying any country that accounts for at least 10% of the total of these assets. Assets attributable to geographic regions not identified are reflected as “Other International”. For the periods indicated, Ciena’s geographic distribution of equipment, building, furniture and fixtures, net, and operating ROU assets was as follows (in thousands):
February 1,
2025		November 2,
2024
Canada$269,647 $283,760 
United States46,024 49,195 
Other International29,824 32,184 
Total$345,495 $365,139