few years ago I heard that "out of business for Cisco routers, and among the reasons he gave were two. On one side was that today everything is going IP, and the great invention of Cisco multiprotocol router that were no longer make much sense and the other, and that seemed the most valid was the comment "until the Chinese make good router now." This 
was clear that Cisco changed its business plan and the direction I take are the services and applications, but without neglecting the network equipment. As part of the Cisco Networkers 2008, I attended the talk of "Understanding the threat mitigation techniques host-based" which was in itself a talk explaining the "Cisco Security Agent", which as the name is a small agent that monitors and / or blocks the actions and processes that occur in the workplace or servers and managed centrally. Highlights
have a couple like that can generate policies automatically in behavior based on many computers, has for several operating systems including Solaris and Linux is included RedHat and all agents report to a centralized server simple requests through https, but without knowing the other competing products, these items do not think that will make a competitive advantage.
good thing and it sure is an interesting advantage is that not only checks local, but that monitors network traffic generated by each host, and mode of learning or filtering it can integrate the detection system Intruder (IDS) or with the switch and router to change the rules of access and filter external traffic or to change the rules of QoS.
Another interesting point is that the CSA is not antivirus or antispyware, and to provide a more comprehensive solution integrated ClamAV
to your product, and according to the speaker's comments Cisco is helping with the creation of new firms virus, but could not find any information "more official" to back him this information.
This, once again we see that Cisco has been friendly
Linux and Open Source, from creating their agents for Linux (ok, for now this is only for RedHat, but now comes the Suse and possibly any more) to begin integrating Open Source software in their products, and who knows what's next ....
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