You set up VMkernel adapters to provide network connectivity to hosts and to accommodate system traffic of vMotion, IP storage, Fault Tolerance logging, Virtual SAN, and so on.

The VMkernel networking layer provides connectivity to hosts and handles the standard system traffic of vSphere vMotion, IP storage, Fault Tolerance, Virtual SAN, and others. You can also create VMkernel adapters on the source and target vSphere Replication hosts to isolate the replication data traffic.

You can view each VMkernel adapter's assigned services, associated switch, port settings, IP settings, TCP/IP stack, VLAN ID, and policies.

Create a VMkernel network adapter on a vSphere standard switch to provide network connectivity for hosts and to handle the system traffic for vSphere vMotion, IP storage, Fault Tolerance logging, Virtual SAN, and so on. You can also create VMkernel adapters on the source and target vSphere Replication hosts to isolate the replication data traffic. Dedicate a VMkernel adapter to only one traffic type.

Create a VMkernel adapter on a host that is associated with a distributed switch to provide network connectivity to the host and to handle the traffic for vSphere vMotion, IP storage, Fault Tolerance logging, Virtual SAN, and others. You can set up VMkernel adapters for the standard system traffic on vSphere standard switches and on vSphere distributed switches.

You might have to change the supported traffic type for a VMkernel adapter, or the way IPv4 or IPv6 addresses are obtained.

You can view the DNS and routing configuration of a TCP/IP stack on a host. You can also view the IPv4 and IPv6 routing tables, the congestion control algorithm, and the maximum number of allowed connections.

You can change the DNS and default gateway configuration of a TCP/IP stack on a host. You can also change the congestion control algorithm, the maximum number of connections, and the name of custom TCP/IP stacks.

You can create a custom TCP/IP stack on a host to forward networking traffic through a custom application.

Remove a VMkernel adapter from a vSphere distributed or a standard switch when you no longer need the adapter. Make sure that you leave at least one VMkernel adapter for management traffic on the host to keep the network connectivity up.