Hi, Dovelet Fast switching is implemented in software(IOS). It is a in-memory cache. Layer-3 switching normally is implemented in hardware, such as hardware cache or ASIC chip. Michael "dovelet" wrote in message ... >Hi all, > >I have a question and I hope someone can help me. As I know, Cisco router >support several switching method, e.g. process switching, fast switching >etc. In some document, it state that fast switching is when the 1st packet >goes into a router, it will go through the routing process, the other >packets with the same source and destination address will go through the >switching process. As I know, the layer 3 switching router is doing the same >job. Then, what is the different between a layer3 switching router and a >router in fast switching? > >Regards, >dovelet Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=14044&t=14044 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]