Modifying a Subnet

This section describes how to modify information about a subnet.

Procedure

  1. Choose Resources > Access > Service Network.
  2. Click on the right of the Subnet drop-down list.

    The Manage Subnet page is displayed.

  3. Click More on the right of a desired subnet and select Modify.

    The Modify Subnet page is displayed.

  4. Set basic information about the subnet.

    Table 1 describes related parameters.

    Table 1 Subnet parameters

    Parameter

    Description

    General DNS Service

    After the general DNS service is enabled, a sub-domain name is set for a zone, and the DNS service is enabled for the zone, you can access the file service and HDFS service in the zone through a domain name. You are advised to enable the general DNS service.

    NOTE:

    Generally, this parameter needs to be configured only when the file or HDFS service is enabled in the storage system. However, if the object service is deployed in a single-cluster scenario, multiple subnets are configured, and the client is not connected to all subnets, the full domain name of a zone in the subnet needs to be used to access the object service. Therefore, this parameter also needs to be configured in this scenario.

    IP Address of General DNS Service in Subnet

    After the general DNS service is enabled, set the value to the DNS IP address that can communicate with the service IP address of the storage system in the subnet. This IP address is used to create the DNS service. Ensure that the IP address is unique.

    Subnet Root Domain Name

    After the general DNS service is enabled, set the value to the root domain name of the subnet.

    Object DNS Service

    After the object DNS service is enabled, you can access the object service of a zone through a domain name.

    NOTE:

    This parameter is displayed only when the object service is enabled in the storage system. This parameter is not applicable to the file and HDFS services.

    IP Address of Object DNS Service in Subnet

    After the object DNS service is enabled, set the value to the object DNS IP address that can communicate with the service IP address of the storage system in the subnet. This IP address is used to create the DNS service. Ensure that the IP address is unique.

    VLAN Tagging

    Whether to enable VLAN for the subnet. Before enabling this function, configure the VLAN of the service switch.

    NOTE:

    Before enabling VLAN Tagging, you need to configure the VLAN of the switch. This function supports the trunk mode and the hybrid tagged mode, but not the access mode and the hybrid untagged mode.

    VLAN ID

    VLAN ID of the subnet. The VLAN ID must be the same as that configured on the switch.

    NOTE:

    This parameter can be set only after VLAN Tagging is enabled. Due to the limitation of the OS on the length of network port names, the total length of the network port name and .vlanId added to the subnet cannot exceed 15 bytes. The value of vlanId is a number ranging from 2 to 4094.

    • For example, if you create a VLAN with a vlanId of 15 for a network port named enp130s0f0np0, the VLAN port name is enp130s0f0np0.15, which exceeds 15 bytes. As a result, the VLAN port creation fails. If you need to use the network port, contact R&D engineers to shorten the port length.

  5. Click OK.
  6. Confirm your operation as prompted.
Parent topic: Managing Subnets