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PCoIP Technology User Guide (Vol I)
5 Network Considerations
PCoIP Technology uses routable IPv4 network
packets. By default, the endpoints are
configured for use in an enterprise network with
minimal setup. This section outlines points that
may affect some IP networks.
The bulk of network traffic between the PCoIP
Host and Portal is comprised of video, USB and
audio media and is carried in IPsec-ESP
packets. Other network protocols are used for
configuration and control (see port numbers
below).
Full-Duplex Networks
PCoIP Technology requires Full-Duplex
Ethernet links. Older communication equipment
including hubs and Half-Duplex switches are not
appropriate for PCoIP Technology deployments
due to the limited effective bandwidth.
PCoIP Technology TCP/UDP Ports
Table 1 summarizes the TCP and UDP ports
used in PCoIP Systems. For networks with
firewalls between the Host and Portal, the
following ports must be open.
Table 1: PCoIP Technology TCP/UDP Ports
Port
Port Number
TCP Ports
21, 51, 80, 427, 443,
8000, 50000, 50001
UDP Ports
53, 67, 68, 427
Maximum Transmission Unit
The PCoIP Technology firmware allows for
configuration of the Maximum Transmission Unit
(MTU) of the data packets. This allows for
customization of MTU size for the network
equipment used. See Packet Fragmentation
below.
The MTU parameter can be set using the
Network webpage.
© 2008 Teradici Corporation
TER0806003 Issue 1
Figure 11: Network Webpage (MTU)
MTU Parameter:
• Default MTU size is 1400 bytes, can be
configured from 500 to 1500 bytes
NAT Traversal
The PCoIP Technology data packets are IPSec
encrypted and do not have any port numbers
external to the encryption. As a result, the
packets are not compatible with networking
equipment (e.g. routers) that implement Network
Address Translation (NAT).
NAT networking gear can be used when PCoIP
Technology network traffic is encapsulated in a
tunneling protocol. This tunneling can be
achieved using a hardware VPN link (see VPN
section below).
Packet Loss and Ordering
PCoIP Technology is resilient to packet loss;
however, performance will degrade as a function
of the loss rate. Packet loss should be
constrained to less than 0.1% for a good user
experience.
Packets that are reordered by network
equipment are treated as lost.
PCoIP Technology transfer and loss statistics
are available on the Administration Web
Interface, are made available to connection
brokers and are also provided via an SNMP
MIB.
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