topic Re: One-Armed Load Balancing in Application Networking

One-Armed Load Balancing

dfariborz — Fri, 16 Feb 2007 16:41:52 GMT

Can CSS 11000 load balance multiple server farms, using different load balancing algorithms on the same ip subnet and having multiple VIPs in the one-armed configuration.

I know this is not an ideal configuration but have to do it for a relocation project.

Thank yoi

Re: One-Armed Load Balancing

michael.e.reid — Thu, 22 Feb 2007 09:27:31 GMT

Yes, this can be done.

You need a trunk connection to the switch obviously to carry your VIP vlan, and server VLAN, then the configuration of services, and content rules is the same as if you use multiple interfaces.

Re: One-Armed Load Balancing

Gilles Dufour — Thu, 22 Feb 2007 14:04:03 GMT

yes you can.

No need for a trunk.

But you have to keep in mind that the CSS must see both sides of a connection.

So, obviously the traffic from the client will hit the CSS vip, but for the server response, you have to make sure it goes back to the CSS.

This can be done with source nating or policy routing.

Gilles.

Re: One-Armed Load Balancing

Gilles Dufour — Thu, 22 Feb 2007 14:05:39 GMT

if you use a trunk this is not one-armed anymore. one-armed refer to 1 vlan and 1 interface for all in/out traffic.

Gilles.

Re: One-Armed Load Balancing

michael.e.reid — Thu, 22 Feb 2007 14:25:13 GMT

Ah, OK Gilles ;o) Just testing.

I thought one-armed was one physical interface.