Cisco earned an upgrade to buy from Wedbush last month based on the potential demand for new routers. Similarly, Jefferies Choi says new Nexus data center switches and big core routers may be just the right products for a thawing tech buying cycle. Cisco has also been on the shopping trail looking to add to its technology offerings. In the past month, Cisco agreed to buy video conferencing specialist Tandberg and mobile data router shop Starent ( STAR). And last week, Cisco made a deal to buy Internet security player ScanSafe in yet another effort to wade further into the emerging cloud computing segment of the networking sector. The $6 billion in acquisitions in recent weeks have not tempered Cisco's stock, which is up 40% this year. Investors are hoping a strong outlook can keep that momentum going. Cisco shares were up 2% to $23.36 in late afternoon trading Wednesday.