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Redudancy in both inbound and outbound

By jkartheek ·
Hi,

I have three T1 Lines provided by three different ISP's. Let us take X,Y,Z are the blocks of ip address given by the respective ISP's. My web Server is running on the X ip address. Now we need to use all the three T1 lines simultaniouslyfor load balancing. We have solution for outbound redudancy in the event of one T1 goes does down. My website is in X ip address, if that Internet goes down i need the outside world to still browse my webserver using the Y and Z router. If i configure BGP by getting a single autonomous number and configuring all the three with the same autonomous number and ask the ISP's to broadcast the Autononous number by brining all the three under single AS, will that solve the problem? in the event of my one T1 goes down the webservers still be browsed though it has that ip address that ISP is down? or else should the other two ISP's boradcast my webservers ip address for this purpose. Can any one help me in this regard.

Thanks in Advance

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Redudancy in both inbound and outbound

by bowieb In reply to Redudancy in both inbound ...

BGP will solve this problem. It will allow you to broadcast routes to your webserver through all three ISPs.

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Redudancy in both inbound and outbound

by jkartheek In reply to Redudancy in both inbound ...

The question was auto-closed by TechRepublic

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Redudancy in both inbound and outbound

by guru@net In reply to Redudancy in both inbound ...

Actually running BGP itself won't solve this problem.

1. You'll need your own (or provided by 1 ISP) "portable" address space (out of the old classfull class c range. (In most cases this will need to be a /24 for all of the ISPs to agree to advertise it for you.

2. You'll need to work with all 3 ISPs and have them agree to advertise your address space as reachable through them via your AS.

There is alot of planning, configuration and cooperation needed for this.

A simpler approachmay be to address your servers out of all 3 networks and add 3 DNS records for each server. This will also give you some primitive inbound load-balancing.

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Redudancy in both inbound and outbound

by jkartheek In reply to Redudancy in both inbound ...

The question was auto-closed by TechRepublic

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Redudancy in both inbound and outbound

by jkartheek In reply to Redudancy in both inbound ...

This question was auto closed due to inactivity

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