About NSX Edge load balancer Weight

[networlddsg]

Hello.

Weight is set in Pool of load balancer

Please tell me what action will be taken if Weight is set.

I confirmed the operation

We had a movement that was frequently allocated to servers with high Weight numbers

Is this movement correct?

I'd like to do traffic forwarding to the intended server.

(BIG-IP - Priority Group Activation) operation

For example

· There are four web servers (web1, web2, web3, web4).

- When normal, only load 1 is set for web 1 and web 2.

· When web 1 fails, only web2 communication

- When web1 and web2 fail, they communicate with web3 and web4.

To do this

Weight setting below.

web1 weight1

web2 weight1

web3 weight2

web4 weight2

Argorithm: Round-Robin

But the operation

Communication is possible in all situations.

[Luke Hoffer]

The "weight" parameter is just a way of setting a proportion of the traffic that will be delivered to a given pool member so regardless of what you do, all servers in a given pool will always receive some traffic (some just receive more than others and higher weight receives more traffic so the way you've got it configured now, web 3/4 will receive twice as much as web 1/2).

Just to make sure I understand, it sounds like what you're after is to have web 1 and web 2 receive all the traffic unless both are down, and only then start sending traffic to web 3 and web 4.  If that's the case, you'll need to put web 1 and 2 in their own pool (let's call that 'active_pool' for the sake of this example) and web 3 and web 4 in a separate pool ('standby_pool' for example) and use an application rule to fail over to the 'standby_pool' when both servers in the 'active_pool' are down.  To do so, you can set the default pool on your virtual server to the 'active_pool' and then apply the following application rule:

acl active_down nbsrv(active_pool) eq 0

use_backend standby_pool if active_down

[networlddsg]

lhoffer>

Thanks for your comment.

understood.

[bayupw]

Hello, I wrote a blog post on that here: Creating an Active-Passive Pool on VMware NSX Load Balancer

[networlddsg]

Bayu Wibowo>​

Thanks for your comment.

I will look at the blog.