SEGMENTS AND ENTITY-WIDE DISCLOSURES Segment Reporting Ciena has the following operating segments for reporting purposes: (i) Networking Platforms; (ii) Software and Software-Related Services; and (iii) Global Services. See Note 3 to Cienas Condensed Consolidated Financial Statements included in Item 1 of Part I of this report. Ciena's long-lived assets, including equipment, building, furniture and fixtures, 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 April 30, 2019 , equipment, building, furniture and fixtures, net totaled $282.0 million , primarily supporting asset groups within Cienas Networking Platforms and Software and Software-Related Services segments and supporting Cienas unallocated selling and general and administrative activities. As of April 30, 2019 , $25.0 million of Cienas intangible assets, net were assigned to asset groups within Cienas Networking Platforms segment and $105.0 million of Cienas intangible assets, net were assigned to asset groups within Cienas Software and Software-Related Services segment. As of April 30, 2019 , $65.5 million of Cienas Goodwill was assigned to asset groups within Cienas Networking Platforms segment and $232.2 million of Cienas Goodwill was assigned to asset groups within Cienas Software and Software-Related Services segment. As of April 30, 2019 , all of the maintenance spares, net, totaling $50.9 million , were assigned to asset groups within Cienas Global Services segment. Segment Revenue The table below (in thousands) sets forth Cienas segment revenue for the respective periods: Quarter Ended April 30, Six Months Ended April 30, 2019 2018 2019 2018 Revenue: Networking Platforms Converged Packet Optical $ 623,838 $ 527,867 $ 1,172,835 $ 955,297 Packet Networking 73,138 63,815 144,707 132,418 Total Networking Platforms 696,976 591,682 1,317,542 1,087,715 Software and Software-Related Services Platform Software and Services 35,229 36,393 76,827 80,529 Blue Planet Automation Software and Services 12,473 2,352 27,447 11,703 Total Software and Software-Related Services 47,702 38,745 104,274 92,232 Global Services Maintenance Support and Training 68,788 60,904 130,065 116,862 Installation and Deployment 41,322 28,209 71,944 58,225 Consulting and Network Design 10,223 10,438 19,713 21,079 Total Global Services 120,333 99,551 221,722 196,166 Consolidated revenue $ 865,011 $ 729,978 $ 1,643,538 $ 1,376,113 Segment Profit Segment profit is determined based on internal performance measures used by Cienas 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; amortization of intangible assets; significant asset impairments and restructuring costs; acquisition and integration costs; interest and other income (loss), net; interest expense; and provision for income taxes. The table below (in thousands) sets forth Cienas segment profit and the reconciliation to consolidated net income (loss) during the respective periods indicated: Quarter Ended April 30, Six Months Ended April 30, 2019 2018 2019 2018 Segment profit: Networking Platforms $ 175,191 $ 126,823 $ 311,782 $ 215,392 Software and Software-Related Services 6,536 8,276 24,952 31,911 Global Services 54,981 41,284 94,682 82,321 Total segment profit 236,708 176,383 431,416 329,624 Less: Non-performance operating expenses Selling and marketing 103,502 97,359 201,615 185,874 General and administrative 42,154 38,976 81,397 77,382 Amortization of intangible assets 5,529 3,623 11,057 7,246 Significant asset impairments and restructuring costs 4,068 4,359 6,341 10,320 Acquisition and integration costs 1,135  2,743  Add: Other non-performance financial items Interest expense and other income (loss), net (9,715 ) (11,735 ) (14,903 ) (23,894 ) Less: Provision for income taxes 17,867 6,475 27,006 484,415 Consolidated net income (loss) $ 52,738 $ 13,856 $ 86,354 $ (459,507 ) Entity-Wide Reporting Cienas revenue includes $545.6 million and $392.8 million of United States revenue for the second quarter of fiscal 2019 and 2018 , respectively. For the six months ended April 30, 2019 and 2018 , United States revenue was $1.01 billion and $776.1 million , respectively. No other country accounted for 10% or more of total revenue for the periods presented above. The following table reflects Cienas geographic distribution of equipment, building, furniture and fixtures, net, with any country accounting for at least 10% of total equipment, building, furniture and fixtures, net, specifically identified. Equipment, building, furniture and fixtures, net, attributable to geographic regions outside of the U.S. and Canada are reflected as Other International. For the periods below, Cienas geographic distribution of equipment, building, furniture and fixtures, net, was as follows (in thousands): April 30, 2019 October 31, 2018 Canada $ 196,069 $ 198,028 United States 67,633 75,479 Other International 18,320 18,560 Total $ 282,022 $ 292,067 For the periods below, AT&amp;T, Verizon and a Web-scale provider were the only customers that accounted for at least 10% of Cienas revenue as follows (in thousands): Quarter Ended April 30, Six Months Ended April 30, 2019 2018 2019 2018 AT&amp;T $ 108,416 $ 85,419 $ 202,587 $ 176,065 Verizon 106,350 n/a 195,125 n/a Web-scale provider n/a n/a 174,853 n/a Total $ 214,766 $ 85,419 $ 572,565 $ 176,065 n/a Denotes revenue representing less than 10% of total revenue for the period The customers identified above purchased products and services from each of Cienas operating segments.