301 and 302 redirection issues

[anilkumartgsb]

Hi..... I want to know the basic issues of these redirection and in which cases we need to use them.

[TomClarke]

A 301 redirect tells the search engine thta the page has moved permanently to the new URL. All three major search engines handle 301 redirects the same, that is to say they ignore the original URL and instead index the destination URL.
A 302 redirect tells the search engine  that the move is only temporary, and you may decide to show content at the original location in the future without a redirect. 302 is treated  as page hijacking technique.

[RH-Calvin]

301 redirect is the most efficient and Search Engine Friendly method for webpage redirection. It's not that hard to implement and it should preserve your search engine rankings for that particular page. If you have to change file names or move pages around, it's the safest option. The code "301" is interpreted as "moved permanently".

A 302 redirect is a temporary redirect. There are very few instances where this type of redirect should be used, but unfortunately it is the easiest to implement. This means that many webmasters unfamiliar with search engine mechanics use the wrong type of redirect.

[SEO.Ninja]

301 Redirect: 301 status code means that a page has permanently moved to new page or location.
302 Redirect: 302 status code means that a page has temporary moved to new page or location.