Transition Networks Contra Converter Quick Setup Guide
Configuration > CES > Protocol
This page shows the Protocol Configuration of the LAN ports.
The displayed items are:
Protocol Type
The protocol type used for CES frames (UDP/RTP, IP, or Ethernet). Changing this setting
requires a reboot.
Different IP networks will often support different operating protocol.
PacketBand can be configured to operate with four different network types. Please consult a
Network Administrator if you are unsure about the protocol of an IP network. In some
situations, the default setting on PacketBand will interface with a different network type and
not require alteration. The four different options are:
Standard layer 3 Internet Protocol
Pseudo-wire over IP
including UDP/RTP
RTP IP + UDP + RTP for UDP port number mapping
MPLS for multi-protocol packet switched networks
Pseudo-wire over Ethernet
Standard layer 2 Ethernet Protocol
Some protocol types will make new options available elsewhere in the PacketBand
configuration menus. These are explained later in this manual.
Clock Recovery Mode
Clock Recovery Mode (1 to 3). PacketBand has three modes which can be used. The clock
recovery modes have different characteristics, and are each suited to specific types of IP
network. Please read through the information below to make sure that the correct Clock
Recovery Mode is selected for the IP network in use. Using the correct Clock Recovery Mode
will optimize clock recovery performance for a system.
Mode 1: Known as Adaptive mode. It is best suited to fairly heavily loaded, busy networks.
This mode will quickly adapt to network conditions and adjust the Derived Clock Offset (DCO)
regularly to adapt to network conditions. This mode can be thought of as the least fastidious.
Mode 2: Known as Enhanced Adaptive mode. It is suited to high quality, low user networks.
If prioritization via QoS or VLAN is in use as well, this mode will particularly excel at clock
recovery. The DCO is adjusted much less frequently when using this protocol in comparison
to Mode 1. This makes the clocking more stable, and clock changes are less drastic. There
are some precautions to take when using mode 2:
• During extensive profiling and testing using Mode 2 it has been proved that this clock
system provides exceptional performance on the majority of "real” networks. However, it
has also been discovered that network simulators and network simulation packages do not
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