Prerequisites:

1. Recommended reading: 
   • Introduction to Virtual Listeners / VIPs in MCP 2.0
   • Introduction to IP Addressing in MCP 2.0
2. Data Center must be MCP 2.0.
3. Data Center must not be in Network Maintenance.
4. Only the Primary Administrator or a User with the Network role can manage Virtual Listeners.
5. Network Domain must be 'Advanced' or 'Enterprise'. This functionality is not supported on 'Essentials' Network Domains. 
6. If adding or editing a new SSL Profile, the SSL Offload Profile must be associated with the Network Domain
7. A Maximum of one (1) SSL Offload Profile can be associated with the Virtual Listener at any given time
8. An SSL Offload Profile can only be associated with a Virtual Listener if:
   1. Virtual Listener Type is Standard
      1. Type Performance Layer 4 cannot be used in conjunction with SSL Offload
   2. Protocol is TCP, HTTP, FTP, or SMTP
      1. Type Standard and Protocol "ANY" cannot be used in conjunction with SSL Offload
      2. Type Standard and Protocol "UDP" cannot be used in conjunction with SSL Offload
   3. Optimization Profile is either TCP (default) or TCP Legacy
      1. The LAN_OPT, WAN_OPT and MOBILE_OPT Optimization Profiles cannot be used with SSL Offload
   4. You cannot add a Virtual Listener with SSL Offload if the addition would cause your organization to exceed the Maximum Virtual Listeners with SSL limitation, as identified here:
      How do I Identify Hardware Specifications and Capabilities Available in a Data Center Location

Content / Solution:

1. From the Home page, select the Data Center where the Network Domain on which the Virtual Listener you want to manage is located:
   
   
   

2. The Data Center dashboard will be displayed. Select the Network Domain on which the Virtual Listener you want to manage is located:
   
   
   

3. Click on the Advanced Network Domain where you want to manage the Virtual Listener. The Network Domain dashboard will be displayed:
   
   
   

   Manage Virtual Listener

   
   

4. Click on the Load Balancing / Virtual IPs tab, then click on the Manage gear for the Virtual Listener you want to manage from the drop-down menu, and select Edit Virtual Listener:
   
   
   

5. The Edit Virtual Listener form will be displayed:
   

   Note: Virtual Listener Name, IP Address, and Protocol settings cannot be edited. You would need to delete the Virtual Listener and re-create it with the desired settings. 

   Details on These Options in Create Virtual Listener article

   For details on the meanings settings and various rules around their use, see How to Create a Virtual Listener on a Network Domain

   Also note, when managing a Virtual Listener, you are presented with "Assign Pool" and "Assign Client Clone Pool". A Pool is the primary handler of traffic for the Virtual Listener. A Pool can be added after a Virtual Listener is created. A Client Clone Pool can optionally be added to receive a copy of the incoming traffic to the Virtual Listener for alternate processing. The most common use case for this function is to direct copies of the traffic for network monitoring purposes such as intrusion detection. See Introduction to Virtual Listeners / VIPs in MCP 2.0

   
   
   

6. Fill out the Edit Virtual Listener form with the desired changes, and then click Save:

   For details about the Virtual Listener elements, see step 6 of How to Create a Virtual Listener on a Network Domain
   
    

7. The system will display a success message:
   
    

8. The changes will be applied and the UI will be updated to indicate the changes:
    

View Virtual Listener Statistics

1. Click on the Load Balancing / Virtual IPs tab, then click on the Manage gear for the Virtual Listener whose details and statistics you want to see from the drop-down menu. Then, select View Virtual Listener Details & Statistics:
   
   
   

2. The Details and Statistics of the Virtual Listener will be displayed:
   
   
   

3. The Virtual Listener Details and Statistics dialog will be displayed:

   • The following Virtual Listener details are thoroughly explained at: How to Create a Virtual Listener on a Network Domain

     • Name
     • Description
     • ID
     • State
     • Status
     • Source Port Preservation
     • Connection Limit
     • Connection Rate Limit
     • Type
     • Protocol

   • The following Virtual Listener Statistics are defined as follows:

     • Availability Status: Identifies if the Virtual Listener is available or not
     • Availability Reason: Identifies the reason for the Availablity Status
     • Connections: Information about Connections
       • Current: Number of current connections
       • Max: Maximum concurrent connections
       • Total: Total number of connections
     • Packets: Number of Packets
       • In: Total number of inbound packets of all time
       • Out: Total number of outbound packets of all time
     • Bits: Number of Bits
       • In: Total number of inbound Bits of all time

       • Out: Total number of outbound Bits of all time

         Packet and Bit numbers are occasionally reset!

         The Packet and Bit numbers are reset during some scheduled maintenance or other events, so we recommend treating these values as a counter rather than explicit values.