The Beginnings of Layer Two Redundancy

In a perfect world we would never need redundancy on a network infrastructure, but as you know as well as I know we don’t live in a perfect world. Hardware will eventually fail, bottlenecks will appear, and the speed of our network will become slower when we max the bandwidth on links. So having redundancy in routers, connections, and having a hierarchy network is one of best choices to make when improving the efficiently of the network. But in the OSI model there is one layer that can’t have redundancy at least logically and that is Layer two of the OSI model. Continue reading

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Understanding VTP

Some people hate it, some people love it. It’s the Cisco proprietary VLAN Trunking Protocol (VTP) which in short means that Cisco switches can exchange VLAN configuration, instead of manually configuring each switch with the same VLANs. I also suggest if you don’t know what a VLAN is check out the post Creating VLANs Let’s get right into understanding VTP. Continue reading

Crossover or Straight through?

The EIA/TIA puts the standards in UTP cable, and when cabling a network there are two standards. T568A and T568B these standards are important when deciding to put a crossover cable or straight through cable. This tutorial is going to be talking about when and where to apply these different standards. Continue reading