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VCP550 · Question #9

An administrator determines that traffic shaping does not appear to be working on Production, a virtual machine port group on vSwitch1. Traffic shaping is working on all other port groups on the switc

The correct answer is A. Select the Status checkbox to enable Traffic Shaping on the portgroup.. Traffic shaping is configured on the Production port group but the Status option is not enabled, so the settings have no effect.

Configure and Administer vSphere Networking

Question

An administrator determines that traffic shaping does not appear to be working on Production, a virtual machine port group on vSwitch1. Traffic shaping is working on all other port groups on the switch. The administrator examines the Traffic Shaping settings as shown in the exhibit:

What should the administrator do to resolve the problem?

Exhibit

VCP550 question #9 exhibit

Options

  • ASelect the Status checkbox to enable Traffic Shaping on the portgroup.
  • BReduce the Average Bandwidth to 50% of the Peak Bandwidth.
  • CReduce the Burst Size to 50% of the Peak Bandwidth.
  • DClick the Security tab and create the necessary security exception.

How the community answered

(37 responses)
  • A
    84% (31)
  • B
    8% (3)
  • C
    5% (2)
  • D
    3% (1)

Why each option

Traffic shaping is configured on the Production port group but the Status option is not enabled, so the settings have no effect.

ASelect the Status checkbox to enable Traffic Shaping on the portgroup.Correct

In vSphere, traffic shaping settings such as Average Bandwidth, Peak Bandwidth, and Burst Size are defined independently of whether the feature is active. The Status checkbox must be explicitly enabled for the configured values to take effect on the port group. Because all other port groups on vSwitch1 are working, the misconfiguration is isolated to this disabled Status setting on the Production port group.

BReduce the Average Bandwidth to 50% of the Peak Bandwidth.

Adjusting Average Bandwidth relative to Peak Bandwidth is a tuning consideration, not a fix for traffic shaping being entirely inactive due to a disabled Status.

CReduce the Burst Size to 50% of the Peak Bandwidth.

Reducing Burst Size is a bandwidth policy tuning step and does not address the root cause of traffic shaping being switched off.

DClick the Security tab and create the necessary security exception.

Security exceptions on the Security tab govern MAC address changes, forged transmits, and promiscuous mode - they have no relationship to traffic shaping functionality.

Concept tested: Enabling vSphere traffic shaping on a port group

Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.networking.doc/GUID-5A1D0C49-6BE0-4ABF-BF96-7E83C3ECE08F.html

Topics

#traffic shaping#port group#vSwitch#network policy

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