Description

This article describes how to add a Node on the Network Domain as a new Pool Member to a Pool.


Prerequisites:

  1. Only the Primary Administrator or a User with the Network role can add a Pool on a Network Domain.
  2. Data Center must be MCP 2.0
    1. Recommended reading: Introduction to Virtual Listeners / VIPs in MCP 2.0
  3. Must have at least one Advanced Network Domain deployed. See How to Deploy a Network Domain in a MCP 2.0 Data Center Location
    1. This feature is not supported on Essentials Network Domains.
  4. Must have created at least one Pool. See How to Add a Pool on a Network Domain
  5. You must have at least one node on the Network Domain created either:

Content / Solution:

  1. From the Home page, select the MCP 2.0 Data Center where the Advanced Network Domain on which the Pool to which you want to add a Node as a Pool Member is located:


  2. The Data Center dashboard will be displayed. Select the Advanced Network Domain on which the Pool to which you want to add a Node as a Pool Member:


  3. The Network Domain dashboard will be displayed. Click on the Load Balancing / Virtual IPs tab. Locate the Pool on to which you want to add a Node as a Pool Member, and click on the Manage gear:

Add a New Node as a Pool Member

  1. Select 'Add new Nodes to Pool' from the dropdown menu:


  2. The Create Nodes dialog will be displayed:


  3. Fill out the Create Nodes form with the requested information:

    • IP Version - Both IPv4 and IPv6 are supported
      • The acceptable range of IPv4 addresses for a Node are: X.X.X.6, and X.X.X.8 - X.X.X.254. This applies to a private IP address being specified that falls within an existing VLAN. Otherwise there's no restriction.
      • Note: You cannot create a Node on a Private IPv4 Address already in use by a Virtual Listener on the same Network Domain.
    • Node Name - Enter a descriptive Name for the Node. This name should be unique across the Network Domain.
      • Must begin with a letter 
      • May not include spaces 
      • Permitted special characters are "_" and "."
    • Node Destination IP Address - IP Address can not already be in use on another Node within the Network Domain. IPv4 addresses must be within the permitted standard range (.6, .11-.254). 
    • Description - The optional Description is limited to a maximum length of 255 characters.
    • Connection Limit - The maximum number of simultaneous connections permitted on the Node. Should be an integer between 1 and 100,000. The system default is set to 100,000.
    • Connection Rate Limit - The amount of new connections permitted every second. Should be an integer between 1 and 4,000. The system default is set to 4000.
    • Node Status - Describes what action the Node will take.
      • "Enabled" - Permits traffic.
      • "Disabled" - A Node continues to process persistent and active connections. It can accept new connections only if the connections belong to an existing persistence session.
      • "Forced Offline" - A Node allows existing connections to time out, but no new connections are allowed.
    • Node Health Monitor -  The procedure that the load balancer uses to verify that the Node is considered “healthy” and available for load balancing. 
      • "CCDEFAULT.Icmp" - Sends an ICMP ECHO request to the Node and considers the Node healthy if an ICMP ECHO reply is received. 
      • Note: A Health Monitor is not required. You can select 'None' from the drop down menu.
    • Pool Member Settings - Specific settings dealing with a Node added as a Pool Member.
      • Port - Enter the Port you would like the Pool Member to be associated with. 
      • Pool Member Status - Select an initial Status for the Pool Member from the dropdown menu.
        • EnabledPermits traffic.
        • DisabledContinues to process persistent and active connections. It can accept new connections only if the connections belong to an existing persistence session.
        • Forced Offline - Allows existing connections to time out, but no new connections are allowed.

  4. Once the form is complete, click the Create Nodes button:

    IMPORTANT NOTES:
    • You cannot add a member Node to a Pool twice using the same port.
    • "Any port" is only a valid option if Health Monitors are not present on the Pool.
    • If Health Monitors are present on the Pool, a port must be specified for each Pool Member.
    • You cannot have members in the same Pool that have "Any" and a "specific" port.
    • You cannot add a Node with a specific port to a pool, and then add it again to the same pool with ANY port.
    • You can optionally select up to 100 Nodes for the Pool (members as a Node can be added more than once).
       
  5. The system will display a success message:


  6. The new Node will be created and added to the Pool as a Pool Member. The UI will be updated to reflect the change:

Add an Existing Node as a Pool Member

  1. Select 'Add Existing Nodes to Pool' from the dropdown menu:


  2. The Add Existing Nodes to Pool dialog will be displayed:


  3. Fill out the form with the desired information:

    • Node Name - Select the existing Node from the dropdown menu.

    • PortEnter the Port you would like the Pool Member to be associated with. 

    • Pool Member Status - Select an initial Status for the Pool Member from the dropdown menu.
      • Enabled - Permits traffic.
      • Disabled - Continues to process persistent and active connections. It can accept new connections only if the connections belong to an existing persistence session.
      • Forced Offline - Allows existing connections to time out, but no new connections are allowed.
         
  4. Once the form has been filled out, click the Add Nodes button:

    IMPORTANT NOTES:
    • You cannot add a member Node to a Pool twice using the same port.
    • "Any port" is only a valid option if Health Monitors are not present on the Pool.
    • If Health Monitors are present on the Pool, a port must be specified for each Pool Member.
    • You cannot have members in the same Pool that have "Any" and a "specific" port.
    • You cannot add a Node with a specific port to a pool, and then add it again to the same pool with ANY port.
    • You can optionally select up to 100 Nodes for the Pool (members as a Node can be added more than once).
       
  5. The system will display a success message:


  6. The Node will be added to the Pool as a Pool Member and the UI will be updated to reflect the change: