A security policy is a set of Endpoint, firewall, and network introspection services that can be applied to a security group. The order in which security policies are displayed is determined by the weight associated with the policy. By default, a new policy is assigned the highest weight so that it is at the top of the table. However, you can modify the default suggested weight to change the order assigned to the new policy.
NSX assigns a default weight (highest weight +1000) to the policy. For example, if the highest weight amongst the existing policy is 1200, the new policy is assigned a weight of 2200.
Security policies are applied according to their weight – a policy with the higher weight has precedence over a policy with a lower weight.
Procedure
1. Log in to the vSphere Web Client.
2. Click Networking & Security and then click Service Composer.
3. Click the Security Policies tab.

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