Question

sugessted loadbalancers

Asked by: shadow2007

We are currently using a Barracuda 340 and we are about to deploy it, but we have had some issues with this device. some VIPs goes offline frequently. We are looking to see if we made the right choice, any suggestions ?

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Asked On
2008-03-08 at 14:34:24ID23225803
Tags

any

,

Loadbalancer

Topics

Network Design & Methodology

,

Network Operations

,

Computer Servers

Participating Experts
3
Points
500
Comments
3

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Answers

 

by: stafiPosted on 2008-03-08 at 15:02:19ID: 21079070

 

by: CLozPosted on 2008-03-09 at 10:27:02ID: 21081965

Have you checked to see what is causing the VIP to go offline?  If the problem was not the load balancer but a network issue replacing it wont fix the problem but just add to the cost.  

The most common problem that causes a VIP to go offline is failure of the load balancer to be able to communicate with the real servers behind it.  Are the health monitors configured properly?  Put a packet sniffer between the load balancer and the real servers and check that they are communicating ok and youre not seeing packet drops or excessive resets.

Are you doing SSL off-loading if so the load balancer may be overwhelm in which case you will need a replacement with a dedicated SSL accelerator. Also analyze your traffic through put to make sure your load balancer choice can handle the traffic demand running through it.

Take a look at the F5 BigIP LTM
http://www.f5.com/products/big-ip/product-modules/local-traffic-manager.html

 

by: Matrix1000Posted on 2008-06-16 at 15:50:13ID: 21798224

f5 Big-IP 1500...almost every major company uses them.

20120131-EE-VQP-002

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