Well, if you are asking with job point of view then let me tell you that PCI and other communication protocol and techniques are very much necessary for the companies like juniper networks, nvidia etc. This was the suggestion made by the people who attended interviews for those companies.
i wasn`t refering to one or two companies.it was just an example.And even i`ve included that along with PCI, other communication protocol.Please don`t misunderstand.
What are the other companies. Is it that PCI express is very demanding to all these companies? What are the other protocols that are being demanded? Is the other protocolas are AXI, AHB or OCP?
i had a sales agent from National Instrument coming to myself to explain on DAQ system we are purchasing. he mentioned NI will be focusing on PCIe products in near future (recommending me to buy system that can support PCIe products). so maybe would be safe to say NI demands on PCIe is high?