I've been practicing the CCNA test via a cisco learning sim, at the end of which, it doesn't tell you what was right or wrong, just to study in XYZ areas. There was one sim that had 7 routers that ...

I’d like to share with you two perspectives in response to a previous post on EIGRP vs OSPF. They are both thoughtful and well-stated, so I’ll share them without comment. The first is from my pal ...

I ran into Tony Hain at NANOG last week, and he told me he had gotten pounded with questions about IPv4 address exhaustion after my post discussing his and Geoff Huston’s studies. His response to them ...