3.10 Network (Network)

The network management function is The physical interface of the server and the virtual machine.(VM) The communication paths between the two are set and controlled integrally.It's a tool to manage complex Linux network configurations intuitively in a GUI environment, ensuring the stability of the infrastructure.

Before use

3.10.1 Set up the network interface

• The network interface is The interface of the first node of the cluster that it's made of. It's loaded from here.
• Clusters that make up(The node.)After selecting See the list of network interfaces for the respective node.It's possible.
• I need to reconfirm my log in when the node list is not visible.(I don't see a list of nodes when there's no login.)

3.10.2 Interface management - new interface(The network.) It's generated

3.10.2.1 Bridge type

• Interface name
  • You can only generate numbers.
  • You can just type in the name and create it.
• Bridge port (The Choice)
  • You choose a physical port to connect to the bridge.
  • ex) eth0, eno1, ens1
• IPv4 address/CIDR (The Choice)
  • CIDR input is required when IP locations are input.
• The Gateway. (The Choice)
  • Set when you need access to an external network.
• Comments (The Choice)
  • Comment for user preference(Notes)
• MTU (The Choice)
  • It's the maximum size of a data packet you can send at once.
  • The default value is 1500.
• Automatic start when boot (autostart)
  • It's a function that automatically activates the interface when the server boots.

Common input values

3.10.2.2 VLAN Type of the thing.

• Interface name
  • You can only generate numbers.
  • You can just type in the name and create it.
• VLAN ID
  • It's sorted by tag.
  • Range: 1 to 4094.
  • The default value is: 1
  • It's not possible.
• VLAN Raw Device(It's necessary.)
  • It's the physical port on which VLN is based.
  • The port needs to be activated.
  • One port to several VLAN It's possible.
• IPv4 address/CIDR (The Choice)
  • CIDR input is required to limit the output of input when IP is injected.
• The Gateway. (The Choice)
  • Set when you need access to an external network.
• Comments (The Choice)
  • Comment for user preference(Notes)
• MTU (The Choice)
  • It's the maximum size of a data packet you can send at once.
  • The default value is 1500.
• Automatic start when boot (autostart)
  • It's a function that automatically activates the interface when the server boots.

3.10.2.3 Bond type

• Interface name
  • You can only generate numbers.
  • You can just type in the name and create it.
• Slaves (The Choice)
  • The physical ports that Bond will contain.
  • I need at least two.
  • The space is defined as: "eth0 eth1" Or "eth0 eth1 eth2”
  • One port can only use one interface.
• Bond Mode (The Choice)
  • Active-Backup: Stability first (Recommended)
    • Switch setup unnecessary
    • Simple configuration
  • 802.3ad (LACP) Performance first.
    • The switch needs to support LACP.
    • Increased bandwidth
    • High-performance networking
• IPv4 address/CIDR (The Choice)
  • CIDR input is required when IP locations are input.
• The Gateway. (The Choice)
  • Set when you need access to an external network.
• Comments (The Choice)
  • Comment for user preference(Notes) That's it.
• MTU (The Choice)
  • It's the maximum size of a data packet you can send at once.
  • The default value is 1500.
• Automatic start when boot (autostart)
  • It's a function that automatically activates the interface when the server boots.

3.10.2.4 Apply changes - Apply configuration [ [ Changes to Apply ]

• It's shown as deactivated when the network is created.

• Network activation
  • When you click the Change Apply button, you'll see Change Apply.

• Change the activated network status display
• If the change fails to apply, the recently modified interface settings, IP/CIDR format, bridge port, VLAN Check the raw device, the bond slaves.

3.10.2.5 Networked modification - Edit

• There's a modify and delete button on the right side of each network interface.

• If you click the modify button on the network, it will bring you the information about the network that's set up. ex)vmbrtest3
• An example of an IPv4 application
  1. I'm going to enter the information to correct.

1. When you click the edit button, you'll see the change applied.

1. I'm going to check the information on the modified network.

3.10.2.6 Remove the network - Remove ️

1. When you click the delete button on the network, you'll see a check window.

1. When you click the delete button, it will show you that the network interface is being deleted.

1. Check the list of network interfaces.

How to solve problems