Blue-chip stocks that have gone on massive runs can make for difficult investment calls, and that's exactly where investors examining Cisco Systems (NASDAQ:CSCO) find themselves today. After struggling amid a slugging corporate IT spending drought, Cisco proved doubters wrong with its impressive quarterly earnings and outlook last month. But can it still be a winner for long-term investors now that it's significantly higher than several months back? Find out the answers in the following video.

Fool contributor Andrew Tonner has no position in any stocks mentioned. Follow Andrew and all his writing on Twitter: @AndrewTonnerThe Motley Fool recommends Cisco Systems. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.