Other Balance Sheet Details (Tables)

3 Months Ended

Jan. 31, 2012

Balance Sheet Related Disclosures [Abstract]

Other long-term assets

As of the dates indicated, other long-term assets are comprised of the following (in thousands):

	October 31, 2011		January 31, 2012
Maintenance spares inventory, net	$	50,442	$	51,674
Deferred debt issuance costs, net	23,481		22,148
Embedded redemption feature	7,020		6,040
Restricted cash	27,507		26,920
Other	5,673		5,785
	$	114,123	$	112,567

Accrued liabilities

As of the dates indicated, accrued liabilities are comprised of the following (in thousands):

	October 31, 2011		January 31, 2012
Warranty	$	47,282	$	49,044
Compensation, payroll related tax and benefits	51,808		45,897
Vacation	27,808		27,575
Current restructuring liabilities	664		2,079
Interest payable	4,248		10,026
Other	65,194		65,493
	$	197,004	$	200,114

Accrued warranty

The following table summarizes the activity in Ciena’s accrued warranty for the fiscal periods indicated (in thousands):

						Balance at
Three months ended	Beginning					end of
January 31,	Balance		Provisions	Settlements		period
2011	$	54,372	1,093	(6,900	)	$	48,565
2012	$	47,282	7,706	(5,944	)	$	49,044

Deferred revenue

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

	October 31, 2011			January 31, 2012
Products	$	42,915		$	35,046
Services	80,883			66,118
	123,798			101,164
Less current portion	(99,373		)	(79,880		)
Long-term deferred revenue	$	24,425		$	21,284