認識 Cisco Switch IOS

原文標題：Knowing your Cisco Switch IOS.

原文網址：https://plus.google.com/108924216132380219943/posts/cc2cFy5U3r8

This is a quick post about IOS, I won't get in detail but this is easy to understand. I see many fellow having some difficulties on #GNS3 trying to install those BIN files and this is what you need to understand about.

Switches can in Layer 2 and Layer 3 Switches. depending of the IOU you choose will have those function.

- First any IOS that is xxxx-ipbasek9-xxxx.bin is Layer 3, meaning you can do basic router on those switches.

- Second any IOS that is xxxx-lanbasek9-xxxx.bin is Layer 2 meaning it won't do basic router. This kind of switches are cheap compare to their layer 3 base.

- Third any IOS that is xxxx-adventerprise-xxxx.bin is Layer 3 and it can advertise routing. In contrast with ipbasek9 that only can do static route.

Which one should you choose is really optional, but ipbase are the most common.