To ensure that the vCenter Server system performs efficiently, you can change the VMRC proxy settings. You can configure the number of concurrent VMRC proxy connections and the maximum bandwidth for each concurrent VMRC proxy connection.

Configure a Concurrent VMRC Proxy Connection

The VMRC network traffic might impact the work of the vCenter Server instance and you can limit the number of the concurrent VMRC proxy connections.

To ensure that the vCenter Server performance is optimum, configure the number of the concurrent VMRC proxy connections to be between 1 and 1024. To meet your configuration needs, you can change the maximum concurrent VMRC proxy connections. By default, the maximum number of concurrent VMRC proxy connections is 32.

Prerequisites

Verify that you have the Global.Settings privilege.

Procedure

  1. In the vSphere Client, navigate to and select the vCenter Server instance.
  2. On the Configure tab, select Advanced Settings.
  3. Click Edit Settings.
  4. Configure the number of the concurrent VMRC proxy connections.
    Option Action
    Configure a concurrent VMRC proxy connection
    1. In the Name text box, enter config.mksdevproxy.connLimit.
    2. In the Value text box, enter a value for the maximum number of concurrent connections allowed.
    3. Click Add.
    Limit the number of the VMRC proxy connections
    1. Click the Filter icon in the Name column.
    2. To view the VMRC proxy parameter, in the text box enter config.mksdevproxy.connLimit and close the dialog box.
    3. In the Value text box, change the number of the concurrent connections.
  5. Click Save.

Configure the Maximum Bandwidth for a Concurrent VMRC Proxy Connection

You can limit the number of the available network bandwidth.

Each concurrent connection has a maximum of 300 KBps network bandwidth. VMRC requires minimum 50 KBps for the basic mouse, keyboard, and screen transfer.

Prerequisites

Verify that you have the Global.Settings privilege.

Procedure

  1. In the vSphere Client, navigate to and select the vCenter Server instance.
  2. On the Configure tab, select Advanced Settings.
  3. Click Edit Settings.
  4. Configure the maximum bandwidth for each concurrent VMRC proxy connection.
    Option Action
    Configure the VMRC inbound traffic to the vCenter Server system
    1. In the Name text box, enter config.mksdevproxy.readthrottler.
    2. In the Value text box, enter the value of the inbound traffic in KBps.
    3. Click Add.
    Configure the vCenter Server outbound traffic to VMRC
    1. In the Name text box, enter config.mksdevproxy.writethrottler.
    2. In the Value text box, enter the value of the outbound traffic in KBps.
    3. Click Add.
    Limit the VMRC inbound traffic to the vCenter Server system
    1. Click the Filter icon in the Name column.
    2. To display the VMRC proxy parameter, in the text box, enter config.mksdevproxy.readthrottler and close the dialog box.
    3. In the Value text box, enter the inbound bandwidth limit in KBps.
    Limit the vCenter Server outbound traffic to VMRC
    1. Click the Filter icon in the Name column.
    2. To display the VMRC proxy parameter, in the text box, enter config.mksdevproxy.writethrottler and close the dialog box.
    3. In the Value text box, enter the outbound bandwidth limit in KBps.
  5. Click Save.