PC-over-IP Administrative
Interface User Manual
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Figure 4-17 shows simplified bandwidth requirements for each user assuming they each
had the full 100 Mbps available. The figure shows that network demand for each user
peaks only for short periods (e.g. when opening/closing windows, scrolling a page, etc.).
The PCoIP system adapts quickly to available network bandwidth, so we recommend
keeping the system defaults. However, the following examples show how to adapt the
default settings if your configuration requires it.
Figure 4-17: Simplified User Bandwidth Requirements (Assuming 100 Mbps)
4.3.1
Configuring the Host Bandwidth Limit to 25 Mbps
In this example, the network will be configured to minimize packet loss. Networks
respond to congestion by dropping packets. The PCoIP processor responds to dropped
(lost) packets by reducing the amount of bandwidth it generates. In most cases, the
PCoIP processor will conceal the packet loss to be imperceptible to the user. However, in
some situations where bandwidth is low or network latency is high, it might be preferable
to eliminate congestion-based packet loss by limiting the available bandwidth to each
user. In this example, we limit each user’s peak bandwidth to a hard limit of 25 Mbps (i.e.
the firmware will not use more than 25 Mbps).
In addition, we will set a target (soft limit) of 20 Mbps, so that during periods of network
congestion, the bandwidth will be decreased rapidly to 20 Mbps and more slowly below
20 Mbps. This will ensure that the available bandwidth is shared fairly if other network
traffic further constrains the link.
