Other Balance Sheet Details (Tables)

6 Months Ended

Apr. 30, 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		April 30, 2012
Maintenance spares inventory, net	$	50,442	$	52,130
Deferred debt issuance costs, net	23,481		20,814
Embedded redemption feature	7,020		2,290
Restricted cash	27,507		29,265
Other	5,673		4,997
	$	114,123	$	109,496

Accrued liabilities

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

	October 31, 2011		April 30, 2012
Warranty	$	47,282	$	51,104
Compensation, payroll related tax and benefits	51,808		52,563
Vacation	27,808		30,724
Current restructuring liabilities	664		1,230
Interest payable	4,248		4,180
Other	65,194		64,155
	$	197,004	$	203,956

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
Apr. 30,	Balance		Provisions	Settlements		period
2011	$	54,372	5,646	(12,766	)	$	47,252
2012	$	47,282	16,615	(12,793	)	$	51,104

Deferred revenue

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

	October 31, 2011			April 30, 2012
Products	$	42,915		$	42,635
Services	80,883			87,199
	123,798			129,834
Less current portion	(99,373		)	(107,100		)
Long-term deferred revenue	$	24,425		$	22,734