Other Balance Sheet Details (Tables)

6 Months Ended

Apr. 30, 2013

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, 2012		April 30, 2013
Maintenance spares inventory, net	$	57,548	$	64,619
Deferred debt issuance costs, net	20,575		18,011
Embedded redemption feature	420		220
Restricted cash	2,413		2,431
Other	3,780		4,876
	$	84,736	$	90,157

Accrued liabilities

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

	October 31, 2012		April 30, 2013
Warranty	$	55,132	$	54,729
Compensation, payroll related tax and benefits	48,885		58,031
Vacation	29,581		31,986
Current restructuring liabilities	3,516		2,238
Interest payable	4,404		6,013
Other	68,022		69,786
	$	209,540	$	222,783

Accrued warranty

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

						Balance at
Six months ended	Beginning					end of
April 30,	Balance		Provisions	Settlements		period
2012	$	47,282	16,615	(12,793	)	$	51,104
2013	$	55,132	11,060	(11,463	)	$	54,729

Deferred revenue

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

	October 31, 2012			April 30, 2013
Products	$	29,279		$	38,659
Services	77,797			88,216
	107,076			126,875
Less current portion	(79,516		)	(98,603		)
Long-term deferred revenue	$	27,560		$	28,272