redundant internet connection
I have developed a scalable application on asp.net. The application spans on four servers with dedicated IP addresses on an SDSL line. (Each server has its own hardware and software firewall).
Following is how my network is setup right now:
SDSL Provider
|
DSL MODEM/ROUTER
|
Switch
________|_________
| | | |
ip ip ip ip
fw fw fw fw
svr1 svr2 svr3 svr4
Where ip = dedicated ip addresss
fw = dedicated hardware firewall
svr*= server
I am now trying to some how deploy a redundant SDSL line from another provider to prevent downtime. How can I go about doing that? Any ideas? If I were to draw a diagram of what I want, I presume it will look some thing like the following:
SDSL Provider #1 SDSL Provider #2
|____________________|
|
DSL MODEM/ROUTER
|
Switch
________|_________
| | | |
ip ip ip ip
fw fw fw fw
svr1 svr2 svr3 svr4
Do I have to use some sort of special router in this case? Please enlighten.
Thank you all in anticipation.
