US computer networking giant Cisco Systems has laid off between 600 and 700 employees at its headquarters in San Jose, California, in a bid to reduce costs amid slow sales, The Wall Street Journal reported yesterday.

The company has also cut jobs at other branches in the United States, although the total number was not immediately clear, the business daily said, citing a person familiar with the matter.

"We are doing everything possible to minimise the impact on employees affected by the limited restructuring," a Cisco spokesman told the Journal.

In February, the group had said it would likely eliminate between 1,500 to 2,000 employees, or three per cent of its workforce. In late April, the company had some 66,550 employees.

After Cisco reported a 24 per cent drop in its net profit, or $1.3 billion, in the third quarter, chief executive John Chambers nonetheless said in May that he saw signs of stabilisation in the group's sales.