Hyper Converged Infrastructure (HCI/aSV)

Sangfor HCI and aSV provide a unified infrastructure combining compute, storage, networking, and built-in security to simplify deployment, operations, and services.
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6.11.1R1
Hyper Converged Infrastructure (HCI/aSV) {{ breadTitle }} User Manual HCI Cluster Initialization Overlay Network Interface Configuration
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Overlay Network Interface Configuration

{{ $t('productDocDetail.updateTime') }}: 2026-01-05

Precautions

  1. After deploying the HCI cluster, you need to specify an Overlay Network Interface for each node. The Overlay Network Interface shall use Gigabit (or 10 Gigabit) interface and be interconnected by Gigabit (or 10 Gigabit) switch. (When only two nodes exist, the Overlay Network Interface can be connected directly). To improve the interface bandwidth and redundancy of the Overlay Network Interface, it is recommended to configure the aggregation interface as the Overlay Network Interface. At this time, the opposite end switch needs to configure the corresponding aggregation mode.
  1. The Overlay Network Interface is configured as a multiplex cluster management port by default. To obtain high network forwarding performance, it is recommended to set the management communication port and Overlay Network Interface (VXLAN) to different interfaces.
  2. Direct aggregation of two interfaces with different roles is not supported. Aggregation can be performed after canceling one interface role. For example, eth0 (management interface) and eth1 (VXLAN interface) cannot be aggregated directly. The VXLAN interface can be adjusted to eth2. At this time, eth0 (management interface) and eth1 (no role) can be aggregated.

Steps

  1. Click Nodes > Physical Interface on the HCI console, click Add Multiple Aggregate Interfaces, and select two interfaces. The aggregation mode recommends loading according to MAC or IP address.

  1. Click Nodes > Communication Interface in the HCI console. Find the Overlay Network Interface among the four interface roles and click Edit Configuration to enter the configuration page to modify the Overlay Network Interface.

  1. Click Nodes > Communication Interface in the HCI console. Find the Overlay Network Interface among the four network port roles and click IP address Pool to enter the configuration page to modify the VXLAN IP pool.

• Create: a VXLAN IP pool can be created. Multiple VXLAN IP pools can exist in a cluster. A node is only allowed to join one VXLAN IP pool.

• Delete: You can delete the VXLAN IP pools that are no longer in use.

• Edit Port: The port number used for VXLAN can be modified. The port number supports 8472, 4789 and 4790.

  1. Click Create to configure the address. Enter the IP pool where the VXLAN IP is located and the netmask. The IP range must be greater than or equal to the number of nodes.

• Description: Describes the created VXLAN IP pool information.

• IP Range: The IP address used by the VXLAN node network plane. It supports a single IP setting and range setting and can be set in multiple lines. It is necessary to ensure that all addresses are in the same network segment.

• Netmask: The mask information of the IP address in the VXLAN IP pool.

• Gateway: If cross-layer data communication is required, fill in the layer 3 gateway.

• Node: The node that uses the IP in the VXLAN IP pool.

  1. By checking the Enable high performance mode checkbox, the MTU of the HCI node interface will be set to 1600 bytes so that the data encapsulated by VXLAN will not be fragmented when sent to the physical network. It can significantly improve the forwarding performance of the virtual network. At this time, the opposite physical switch must enable a jumbo frame.