I would suggest you spend some time doing hands-on study of networking devices and networking theory. In my opinion, the best way would be to go for a certification, like the Cisco CCNA or CCNP.
You may choose to do self-study for these certifications by, say, reading books, watching training videos, and building your own test network of routers & switches to practice on.
Or, you may choose to go to a hands-on Cisco certification class that covers the the CCNA (to start with).
I really believe that, in today’s job market, the best way to get a good job is to have BOTH a combination of a degree AND certifications AND hands-on knowledge.
All the best to you,
As a long-time IT cert guy and a paid “career expert” for numerous TechTarget Websites, I’d also like to weigh in (check me out here.) Cisco is certainly a good direction to follow, but there are also ample opportunities in the Windows space (a whole new raft of Windows Server 2008 exams and credentials is in the offing right now). Same goes for Linux where you can check out the credentials for the LPIC (Linux Professional Institute), Red Hat, Novell/SuSE, and others. Then, too both Sun and IBM have their own suite of certs including lots of networking entries. A lot depends on what you know best, and what you like best. If you’d like to post again here, or email me at email@example.com I can provide more input in exchange for more information from you.