Changing ISP's

[hand]

Hi..has anyone had experience of changing isp's and public address spaces? We have to move from one address space to another and were wondering what the implications were regarding reachability for outside hosts to get to our webservers. If both isp's are advertising their respective subnets, will we lose connectivity for our mail etc. while both subnets are being advertised?

Thanks for any help and advice.

[tjhogan]

When you change IP's make sure these Ip's are reachable from the Internet. Change any DNS records associated with your webservers to point to the new address space. If your DNS servers are also changing you might want to change this in advance so that the information can propagate to the rest of the Net.