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Best Plan for Fault Tolerance / Load Balance

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Best Plan for Fault Tolerance / Load Balance - 8.Feb.2007 10:37:57 AM   
poiuy

 

Posts: 82
Joined: 20.Oct.2005
Status: offline
I am currently running ISA 2004 Standard and with the growth of our company maintaining a constant reliable Internet connection is more important.

My plan is to switch to two ISA 2006 Enterprise servers and in an Array.  This will accomplish my goal on the LAN but not for the WAN and that is where I need help.

We currently have two bonded T1's from AT&T into a Cisco Router.  We also have a Cable Modem with Static IP's.  Is there anyway to configure ISA 06 to utilize both of those connections?  Can one use the Cable Modem and the other use the T1's.  I could then do Round Robin DNS and ensure that Email / Web Hosting is not completely down and Internet access from users is always available.

My other option is to use a Netgear FVX538.  It has dual WAN Ports and can provide fault tolerance and load balancing.  However using it creates a Single Point of Failure and I am not certain yet how our existing VPN connections will function using NAT to the ISA Server.

My core goal is to ensure that we have a constant Internet connection whether the ISA server is rebooted for maintenance or the T1's or Cable Modem Fail.  We operate 24/365 and there is rarely a good time for maintenance.

Thank You.

_____________________________

poiuy the Nemisis of qwerty
Post #: 1
RE: Best Plan for Fault Tolerance / Load Balance - 16.Feb.2007 8:40:57 AM   
tshinder

 

Posts: 50013
Joined: 10.Jan.2001
From: Texas
Status: offline
No.

HTH,
Tom



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Thomas W Shinder, M.D.

(in reply to poiuy)
Post #: 2

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