Summary Of Significant Accounting Policies	6 Months Ended
Apr. 27, 2013
Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	Summary of Significant Accounting Policies There have been no material changes in the Company’s significant accounting policies for the six months ended April 27, 2013, as compared to the significant accounting policies disclosed in Brocade’s Annual Report on Form 10-K for the fiscal year ended October 27, 2012. New Accounting Pronouncements or Updates Recently Adopted In June 2011 and December 2011, the FASB issued updates to ASC 220 Comprehensive Income (“ASC 220”): Presentation of Comprehensive Income. The amendments from these updates increase the prominence of items reported in other comprehensive income and eliminate the option to present components of other comprehensive income as part of the statement of equity. The Company adopted these updates in the first quarter of fiscal year 2013, presenting the required information in the Condensed Consolidated Statements of Comprehensive Income. Recent Accounting Pronouncements or Updates That Are Not Yet Effective In February 2013, the FASB issued an update to ASC 220: Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. Under this update, an entity is required to provide information about the amounts reclassified out of accumulated other comprehensive income (“AOCI”) by component. In addition, an entity is required to present, either on the face of the financial statements or in the notes, significant amounts reclassified out of AOCI by the respective line items of net income but only if the amount reclassified is required to be reclassified in its entirety in the same reporting period. For amounts that are not required to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures that provide additional details about those amounts. This update to ASC 220 should be applied prospectively and will be adopted by the Company in the first quarter of fiscal year 2014. The adoption of this update to ASC 220 will not have an impact on the Company’s financial position, results of operations or cash flows. The Company will include additional information required by this update prospectively starting from the first quarter of fiscal year 2014. In March 2013, the FASB issued an update to ASC 830 Foreign Currency Matters (“ASC 830”): Parent’s Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity. Under this update, an entity is required to release any cumulative translation adjustment into net income when an entity ceases to have a controlling financial interest resulting in the complete or substantially complete liquidation of a subsidiary or group of assets within a foreign entity. This update to ASC 830 should be applied prospectively and will be adopted by the Company in the first quarter of fiscal year 2015. The Company does not expect the adoption of this update to ASC 830 to have a material impact on its financial position, results of operations or cash flows. Concentrations Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash, cash equivalents and accounts receivable. The Company’s cash and cash equivalents are primarily maintained at five major financial institutions. Deposits held with banks may be redeemed upon demand and may exceed the amount of insurance provided on such deposits. A majority of the Company’s accounts receivable balance is derived from sales to original equipment manufacturer (“OEM”) partners in the computer storage and server industry. As of April 27, 2013, two customers accounted for 17% and 11%, respectively, of total accounts receivable, for a combined total of 28% of total accounts receivable. As of October 27, 2012, three customers accounted for 16%, 12% and 10%, respectively, of total accounts receivable, for a combined total of 38% of total accounts receivable. The Company performs ongoing credit evaluations of its customers and generally does not require collateral on accounts receivable balances. The Company has established reserves for credit losses, sales allowances and other allowances. For the three months ended April 27, 2013, three customers accounted for 18%, 16% and 11%, respectively, of the Company’s total net revenues for a combined total of 45% of total net revenues. For the three months ended April 28, 2012, four customers accounted for 20%, 15%, 13% and 10% respectively, of the Company’s total net revenues for a combined total of 58% of total net revenues. The Company currently relies on single and limited sources for multiple key components used in the manufacture of its products. Additionally, the Company relies on contract manufacturers (“CMs”) for the manufacturing of its products. Although the Company uses standard parts and components for its products where possible, the Company’s CMs currently purchase, on the Company’s behalf, several key product components from single or limited supplier sources.

Summary of Significant Accounting Policies

There have been no material changes in the Company’s significant accounting policies for the six months ended April 27, 2013, as compared to the significant accounting policies disclosed in Brocade’s Annual Report on Form 10-K for the fiscal year ended October 27, 2012.

New Accounting Pronouncements or Updates Recently Adopted

In June 2011 and December 2011, the FASB issued updates to ASC 220 Comprehensive Income (“ASC 220”): Presentation of Comprehensive Income. The amendments from these updates increase the prominence of items reported in other comprehensive income and eliminate the option to present components of other comprehensive income as part of the statement of equity. The Company adopted these updates in the first quarter of fiscal year 2013, presenting the required information in the Condensed Consolidated Statements of Comprehensive Income.

Recent Accounting Pronouncements or Updates That Are Not Yet Effective

In February 2013, the FASB issued an update to ASC 220: Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. Under this update, an entity is required to provide information about the amounts reclassified out of accumulated other comprehensive income (“AOCI”) by component. In addition, an entity is required to present, either on the face of the financial statements or in the notes, significant amounts reclassified out of AOCI by the respective line items of net income but only if the amount reclassified is required to be reclassified in its entirety in the same reporting period. For amounts that are not required to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures that provide additional details about those amounts. This update to ASC 220 should be applied prospectively and will be adopted by the Company in the first quarter of fiscal year 2014. The adoption of this update to ASC 220 will not have an impact on the Company’s financial position, results of operations or cash flows. The Company will include additional information required by this update prospectively starting from the first quarter of fiscal year 2014.

In March 2013, the FASB issued an update to ASC 830 Foreign Currency Matters (“ASC 830”): Parent’s Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity. Under this update, an entity is required to release any cumulative translation adjustment into net income when an entity ceases to have a controlling financial interest resulting in the complete or substantially complete liquidation of a subsidiary or group of assets within a foreign entity. This update to ASC 830 should be applied prospectively and will be adopted by the Company in the first quarter of fiscal year 2015. The Company does not expect the adoption of this update to ASC 830 to have a material impact on its financial position, results of operations or cash flows.

Concentrations

Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash, cash equivalents and accounts receivable. The Company’s cash and cash equivalents are primarily maintained at five major financial institutions. Deposits held with banks may be redeemed upon demand and may exceed the amount of insurance provided on such deposits.

A majority of the Company’s accounts receivable balance is derived from sales to original equipment manufacturer (“OEM”) partners in the computer storage and server industry. As of April 27, 2013, two customers accounted for 17% and 11%, respectively, of total accounts receivable, for a combined total of 28% of total accounts receivable. As of October 27, 2012, three customers accounted for 16%, 12% and 10%, respectively, of total accounts receivable, for a combined total of 38% of total accounts receivable. The Company performs ongoing credit evaluations of its customers and generally does not require collateral on accounts receivable balances. The Company has established reserves for credit losses, sales allowances and other allowances.

For the three months ended April 27, 2013, three customers accounted for 18%, 16% and 11%, respectively, of the Company’s total net revenues for a combined total of 45% of total net revenues. For the three months ended April 28, 2012, four customers accounted for 20%, 15%, 13% and 10% respectively, of the Company’s total net revenues for a combined total of 58% of total net revenues.

The Company currently relies on single and limited sources for multiple key components used in the manufacture of its products. Additionally, the Company relies on contract manufacturers (“CMs”) for the manufacturing of its products. Although the Company uses standard parts and components for its products where possible, the Company’s CMs currently purchase, on the Company’s behalf, several key product components from single or limited supplier sources.