This has been covered before but there are some interesting comments in the posts themselves.

Swiss German is a Language variation ie it is more than a dialect and less than a full language. The dialects that are spoken in Switzerland are dialects of this German variety.

The most interesting comment I have seen is this "I would welcome a standard Swiss German". This actually exists and is that spoken in schools etc. It is not high German and it is not spoken Swiss German...

Furthermore this statement " actually the swiss germans can go to other cantons without any difficulty understanding" is not true. Ask any proper Swiss German and they will tell you that Berner Deutsch and Walliser Deutsch are difficult if not impossible(the latter) to understand. This is rather similar to the situation in the UK where any person from the South of England will have problems understanding any of the northern English dialects - the converse is however not true.