Configuring Session Bandwidth

Setting Default AWI OSD Management Console
Device Bandwidth Limit 0
Device Bandwidth Target 0
Device Bandwidth Floor 0

From the AWI Bandwidth page as shown next, you can control the bandwidth that your Tera2 PCoIP Zero Client uses during a PCoIP session.

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AWI Bandwidth page

The following parameters display on the AWI Bandwidth page:

Bandwidth Parameters

Parameter Description
Device Bandwidth Limit Enter the maximum bandwidth peak from the client to the host (for example, USB data).

The usable range of the device bandwidth is 1,000 to 220,000 Kbps for Tera1 devices and 1,000 to 600,000 Kbps for Tera2 devices.

The PCoIP processor only uses the required bandwidth up to the Device Bandwidth Limit maximum, and dynamically adjusts the bandwidth in response to network congestion. Setting this field to 0 configures the PCoIP processor to use the maximum rate available in the network at any time.

We recommend setting this field to the limit of the network connected to the client and host.

When applied to devices running firmware lower than 3.0, a value other than 0 is rounded to the nearest megabit per second, with a minimum value of 1 Mbps.
Device Bandwidth Target Enter the temporary limit on the network bandwidth during periods of congestion. When the device detects packet loss, the device bandwidth is rapidly reduced to this value, and then more slowly reduced below it. This enables for a more even distribution of bandwidth between users sharing a congested network link.
Device Bandwidth Floor Enter the minimum bandwidth when congestion is present and bandwidth is required. This enables you to optimize performance for a network with understood congestion or packet loss. If the bandwidth is not required, the bandwidth used drops below the floor.

This setting defines the minimum bandwidth from the client to the host (for example, USB data).

A setting of 0 configures the PCoIP processor to reduce bandwidth to 1,000 Kbps during these network impairments. You should have a good understanding of the network topology before setting this to a non-zero value.

The firmware implements a slow-start algorithm that increases the bandwidth used until the required bandwidth is reached, network congestion is detected, or the Device Bandwidth Limit is met. It begins at the lesser of the Device Bandwidth Limit and 8,000 Kbps, and increases the bandwidth used within seconds. The slow-start algorithm enables a graceful session startup for low bandwidth scenarios (for example, WAN scenarios). After initiating a PCoIP session, users may temporarily notice low bandwidth video artifacts as the algorithm ramps up bandwidth use.

When applied to devices running firmware lower than 3.0, a value other than 0 is rounded to the nearest megabit per second, with a minimum value of 1 Mbps.

To configure session bandwidth:

  1. From the AWI, select Configuration > Bandwidth.
  2. From the AWI Bandwidth page, update the bandwidth settings.
  3. Click Apply to apply your updates immediately.