We kick off the CCNA series from the beginning. Operation of IP data networks is weighted as 5% in the CCNA RS blueprint. The first topic is: 1.1 Recognize the purpose and functions of various network devices such as routers,
Intro My last post asked for GNS3 to come clean. Some may have mistaken it for a bashing of GNS3 which was definitely not the intention of the post. The post was intended to get a discussion going and to
Many network engineers, Cisco students and people just interested in networking has used GNS3 in the past for studies and Proof of Concepts (PoC). Despite it being a CPU hog, bugs in the Ethernet drivers and lack of stability it
Cisco is releasing a new Catalyst switch and it will be called 3850. Some of you might already have heard about it. I’ve seen some presentations about it but now it’s offical. Lets look at some of the highlights of
To be a CCIE we need a good grasp of switching and STP. This post by Petr Lapukhov (again) is one of the best I’ve ever seen on STP. This post describes PVST+ in detail. Read it here.
Private VLANs is a method to segment devices at layer 2 that are in the same IP network. Different VLANs are used but they share a common IP network. The most common scenario for a private VLAN is a residential