Operations and Management

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You may need to change the configuration of the appliances you've installed, for example, adding licenses, certificates, and changing passwords. There are also routine maintenance tasks that you should perform, including running backups. Additionally, there are tools to help you find information about the appliances that are part of the NSX-T infrastructure and the logical networks created by NSX-T, including remote system logging, traceflow, and port connections.

A compute manager, for example, vCenter Server, is an application that manages resources such as hosts and VMs. NSX-T polls compute managers to find out about changes such as the addition or removal of hosts or VMs and updates its inventory accordingly.

Some API requests that involve copying files to or from a remote server require that you provide the SSH fingerprint for the remote server in the request body. The SSH fingerprint is derived from a host key on the remote server.

If your NSX Manager virtual appliance becomes inoperable, it can be restored from backup. The NSX Manager stores the desired state for the virtual network. If the NSX Manager appliance becomes inoperable, the data plane is not affected, but configuration changes cannot be made.

IPFIX (Internet Protocol Flow Information Export) is a standard for the format and export of network flow information. You can configure IPFIX for switches and firewalls. For switches, network flow at VIFs (virtual interfaces) and pNICs (physical NICs) is exported. For firewalls, network flow that is managed by the distributed firewall component is exported.

Use Traceflow to inspect the path of a packet as it travels from one logical port on the logical network to another logical port on the same network. Traceflow traces the transport node-level path of a packet injected at a logical port. The trace packet traverses the logical switch overlay, but is not visible to interfaces attached to the logical switch. In other words, no packet is actually delivered to the test packet’s intended recipients.