ESXi allows you to shape both inbound and outbound traffic on vSphere distributed switches. The traffic shaper restricts the network bandwidth available to any port, but might also be configured to temporarily allow bursts of traffic to flow through a port at higher speeds.

A traffic shaping policy is defined by three characteristics: average bandwidth, peak bandwidth, and burst size.

1

Browse to a distributed switch in the vSphere Web Client.

2

Click Manage > Ports to navigate to the distributed ports of the switch.

The distributed ports of the distributed switch appear.

3

Select a port from the list.

4

Click Edit distributed port settings.

5

Click Traffic shaping, and select the Override check box to override either ingress traffic shaping, egress traffic shaping, or both.

Note

The traffic is classified to ingress and egress according to the traffic direction in the switch, not in the host.

Option

Description

Status

If you enable either Ingress Traffic Shaping or Egress Traffic Shaping using the Status drop-down menus, you are setting limits on the amount of networking bandwidth allocated for each virtual adapter associated with this particular port group. If you disable the policy, services have a free, clear connection to the physical network by default.

Average Bandwidth

Establishes the number of bits per second to allow through a port, averaged over time, that is, the allowed average load.

Peak Bandwidth

The maximum number of bits per second to allow through a port when it is sending/receiving a burst of traffic. This parameter tops the bandwidth used by a port whenever it is using its burst bonus.

Burst Size

The maximum number of bytes to allow in a burst. If this parameter is set, a port might gain a burst bonus when it does not use all its allocated bandwidth. Whenever the port needs more bandwidth than specified by Average Bandwidth, it might be allowed to temporarily transmit data at a higher speed if a burst bonus is available. This parameter tops the number of bytes that might be accumulated in the burst bonus and transferred at a higher speed.

6

Review your settings in the Ready to complete section and click Finish.

Use the Back button to edit any settings.