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The Network Engineer role in NSX is a built-in role that provides permissions to apply configuration changes on NSX components, including NSX Edge. It is the most restrictive role that still allows users to make changes, whereas roles like Network Operator are typically limited to read-only access.

The netcpa process is responsible for Local Control Plane (LCP) connectivity with the Central Control Plane (CCP) in NSX. Using the command esxcli network ip connection list | grep netcpa, administrators can verify the connectivity status between the LCP on the ESXi host and the CCP, ensuring proper communication for NSX operations.

The insertion point for East-West network introspection in NSX is at the Guest VM vNIC (virtual Network Interface Card). By inspecting traffic at the vNIC level, NSX can monitor and apply security policies to traffic between virtual machines (East-West traffic) within the same network segment or data center, providing detailed security controls for VM-to-VM communication.

In NSX, BGP is the only supported dynamic routing protocol on a Tier-1 Gateway. OSPF is not supported at the Tier-1 level; it is only available on Tier-0 Gateways. This limitation means that for dynamic routing on a Tier-1 Gateway, administrators can configure BGP to exchange routing information with connected Tier-0 Gateways.

To configure a firewall rule based on the domain name of a specific application, the administrator needs to use the Profile field in a distributed firewall rule. The Profile field allows the administrator to select a context profile that contains one or more attributes for filtering traffic. One of the attributes that can be used is Domain (FQDN) Name, which specifies the fully qualified domain name of the application. For example, if the administrator wants to filter traffic to *.office365.com, they can create a context profile with the Domain (FQDN) Name attribute set to *.office365.com and use it in the Profile field of the firewall rule.

References:

Filtering Specific Domains (FQDN/URLs)

FQDN Filtering

IP Pool: This allows you to define a range of IP addresses within NSX that the TEPs can use.

DHCP Server: This enables the TEPs to automatically obtain IP addresses from a DHCP server configured in the network.

Auditor: Allows users to view settings and logs without making changes.

Full access: Provides complete control over all NSX settings and configurations.

None: No permissions are granted, restricting access completely.

Read: Allows users to view configurations and settings without editing capabilities.

None: No permissions are granted, restricting the user’s access entirely.

Read: Grants read-only access, allowing the user to view configurations and settings without making changes.

Auditor: Similar to Read, but typically includes access to audit logs and more detailed viewing permissions for compliance purposes.

Full Access: Grants complete control over all NSX configurations and settings, allowing unrestricted access.

VMware recommends setting the MTU (Maximum Transmission Unit) to 1700 or greater for NSX deployments. This is to ensure that the VXLAN encapsulation, which adds overhead to the original Ethernet frame, can be accommodated without fragmentation. This MTU requirement includes the entire data center network, including inter-data center connections, to ensure consistent communication across all network components involved in the NSX deployment.