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troubleshooting Question

Adding T-1 to Network

Avatar of mojopojo
mojopojoFlag for United States of America asked on
NetworkingSBSMicrosoft Forefront ISA Server
13 Comments1 Solution684 ViewsLast Modified:
We have just added a T-1 line to a network. The existing infrastructure is hybrid Windows/SO X (Windows/Mac). This multimedia company has an existing cable Internet connection with dynamic IP addressing.

The existing cable I-net connection comes in through the cable-modem to a D-Link router (provided by the ISP) which runs the DCHP services. There is a single Ethernet connection from the D-Link Router to a Dell Power Connect 2224 switch. All network appliances and client machines connect through that switch.

ISSUE: They have an office in London (we are in Chicago). Each office is installing a DigiDelievery Server ( http://www.digidesign.com/index.cfm?langid=100&navid=38 ). The servers will be dedicated to moving large multi-media files between locations and for distribution to clients later.

We have had a T-1 line installed with a block of 5 static IPs. I have configured the T-1 router and DigiDelivery Server as follows: the T-1 router has the gateway IP. The DigiDelivery Server had the first usable public (static) IP of the scope.

The connection works fine. I can remote from anywhere to the DigiDelivery Server to perform administrative tasks, upload files for distribution, etc.

But what I have ended up with, ostensibly, is 2 separate networks. One exclusively using the T-1 line for data transfer to and from the DigiDelivery Server. The other in utilizing the Cable Internet connection for office and administrative tasks (e-mail, browsing, etc.) of the network.

The problem is that the workstations and Mac audio/video editing stations all store the files that need to be moved back and forth to the DigiDelivery Server. Since I now have 2 networks I can only move those files over the Internet via the Web interface and this is at cable modem upload speeds.

I need to configure the physical and logical topology of these two networks to allow users to move huge files to the Digi server at LAN speeds, while ensuring that the total bandwidth of the T-1 line remains available for DigiDelivery Server and its connection to London.

So… how to join these 2 networks while dedicating the T-1 to the DigiDelivery server while allowing LAN speed data transfer to that server form the clients on the network.

Yes. I want to have my cake and eat it too.

Network Details and Resources: This LAN is currently a workgroup. There is not a dedicated server on the LAN nor are any machines running a server OS. I have been given the OK to purchase a Windows server running SBS 2003 with SharePoint, ISA 2006, etc. I may also request a new gigabit switch if necessary.

I am adding the server to make this network a true domain and to utilize the SharePoint services. Also to have a central point for data storage and backup. All completed files ready for transfer will be stored on the new server.

Q: Will ISA 2006 perform this load-balancing service for me and allow me to dedicate each internet connection for the necessary tasks? Will I also be able to configure failover should either connection go down?

I know there is a way to configure this.

Anyone… Anyone…

Thanks,
-MP
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