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Forum: Geek Forum
Topic: Dsl load balancing
started by: L33T_h4x0r_d00d

Posted by L33T_h4x0r_d00d on Apr. 01 2001,13:42

Ok I have dsl through cais(provided by covad in covads pop) Im thinking of getting another dsl line from dsl.net because they have their own pop and their own bandwidth. My logic is if covads network goes down(again) or shuts down all together(ala northpoint) Ill already have a backup line so im not completly disconnected from the net and can continue to serve. I already have 32 IPs from covad and would get 29 new ones from dsl.net. How would I load-balance/fail-over that so that neither line sits unused?

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Posted by jim on Apr. 01 2001,13:58

Get 2 Intel Pro+ 10/100 NICs per box, bind them using the Intel Software to use 1 IP for both NICs. If one adapter or line fails the other automatically picks ups.

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jim
Beauty is in the eye of the Beer Holder
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Posted by L33T_h4x0r_d00d on Apr. 01 2001,14:03

I was hoping to be able to do this on the router level but if I have to do an NT router I guess thats what Ill have to do.

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Any sentance that ends with ANAL SEX is worth taking another look at.

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Read "their message"

Posted by L33T_h4x0r_d00d on Apr. 01 2001,14:16

quote:
Originally posted by jim:
And are they dependent on the IP address or the host name?

What are my choices for both?

Posted by jim on Apr. 01 2001,14:22

There are lots of ways to do this... What type of services are you hoping to stay up? And are they dependent on the IP address or the host name?

NIC binding is by far the simplest way to accomplish network fault tolerance.

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jim
Beauty is in the eye of the Beer Holder
< Brews and Cues >

Posted by jim on Apr. 01 2001,14:30

Sorry, I should have put this in the above post.

Are you trying for fault-taulerance of a SERVER(s), or a SERVICE(s)!

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jim
Beauty is in the eye of the Beer Holder
< Brews and Cues >

Posted by L33T_h4x0r_d00d on Apr. 01 2001,14:47

Service, as in one or more websites.

Posted by jim on Apr. 01 2001,14:53

Then depending on the level of redudancy you want, you can go with the dual NICs for netowrk redundancy for the network, Clustering for server/service level, and then use 2 CISCO Load Balancing routers. This would provide complete fault-tolerance assuming you have redundant power supplies and that the 2 servers were not in the same location.

But still... If you are just talking about Network Fault-Tolerance on one server, then the Dual Instance of the TCP/IP service in a NIC binding scenario will fix you right up.

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jim
Beauty is in the eye of the Beer Holder
< Brews and Cues >

Posted by L33T_h4x0r_d00d on Apr. 01 2001,15:00

As it stands right now I have 4 servers running 2 platforms that I plan to load balance. Ive got plenty of ups power(about 4 hours running all 4 machines and 1 monitor) The only thing is they are all in the same location. So unless my local circuit gets cut by construction or somthing I should be good. Hmm now Im real intrested. Which cisco routers do you suggest?

Posted by jim on Apr. 01 2001,15:37

Fire is the number one reason for multiple locations. You at least need off-site backup storage for disaster recovery.

I'll leave the CISCO hardware selection up to you. What's important is the software running on the router. What your looking for is known as Local Director. It's highly scalable and has multiple add on to meet whatever you can throw at it, whether you have 2 servers in one room or 10,000 servers in 26 countries.

In it's most basic form it simply contacts the Workload agents on the server and decides based on client connections, CPU time, or in a round robin fashion where to direct traffic.

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jim
Beauty is in the eye of the Beer Holder
< Brews and Cues >

Posted by L33T_h4x0r_d00d on Apr. 03 2001,03:52

You ever worked with BigIP from F5. That is a beast and a badass all in one. Its the only box in our rack wearing a trench coat and sunglasses. I wish i had the l00t for one of those.

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Decaffinated coffee is like unleaded fuel, it tastes like shit.

Posted by jim on Apr. 03 2001,10:34

quote:
Originally posted by L33T_h4x0r_d00d:
You ever worked with BigIP from F5.

Yeah... That was the first thing that came to mind. Then I remembered that they cost like 15k or something ridiculous like that. Never bought one, just played with one.

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jim
Beauty is in the eye of the Beer Holder
< Brews and Cues >

Posted by L33T_h4x0r_d00d on Apr. 03 2001,14:40

quote:
Originally posted by jim:
[QUOTE]Originally posted by L33T_h4x0r_d00d:
Then I remembered that they cost like 15k or something ridiculous like that

Try 40k....we have 2 of them......

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Decaffinated coffee is like unleaded fuel, it tastes like shit.

Posted by CatKnight on Apr. 03 2001,17:03

i like puters

oh yeah and northpoint sux0rs. i'm not gonna have dsl when i come home from school. actually my bro jury-rigged dual 56k's up to the linux box so atleast it's not total crap.

wait yes it is