Virtual networking is a technology that enables the overlay of multiple logical network configurations onto a single physical network. For virtual networking to work, the physical network must include VLAN-capable devices.
HCP supports virtual networking only for the front-end network through which clients communicate with the system and through which different HCP systems communicate with each other. HCP does not support virtual networking for the back-end network through which the HCP nodes communicate with each other.
In HCP, logical network configurations are referred to simply as networks. Each network has a name, an IP mode (IPv4, IPv6, or Dual), one or more subnets defined for the network, IP addresses defined on each subnet for none, some, or all of the nodes in the HCP system, and some other settings.
HCP has two networks that are created during system installation: [hcp_system] and [hcp_backend]. The [hcp_system] network is used for front-end communication with the system. The [hcp_backend] network is the only network used for communication between the nodes in the HCP system. Modifying the [hcp_system] and [hcp_backend] networks requires the service role and should be done only by authorized HCP service providers.
In addition to the [hcp_system] and [hcp_backend] networks, you can create and configure user-defined networks for communication with HCP over the front-end network. In order to create networks the Virtual network management must be enabled. You can then configure the system to use the specific networks for specific functions.
You can also create network aliases for user-defined networks. Aliases are pointers to actual networks. For information on network aliases, see Network aliases.
At any given time, the total number of user-defined networks and network aliases together cannot exceed 200.
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