Telos Zephyr Xstream User Manual page 159

USER'S MANUAL
action, any software version that was previously located in Bank 0 will be replaced by the new,
committed version. This action will not cause a reboot.
Livewire QoS
This configuration page provides the settings for Livewire QoS (Quality of Service). In almost all
cases, the factory default settings are recommended so you will probably not need to make any
changes to this page, particularly to the Audio Stream settings. It is worth noting here that the
Livewire clock master priority will be set to either "0 (always slave)" or "3 (default)" and the
Livewire clock mode will be "IP low rate (default)".
Detailed information on these settings is provided below. Here is the web page:
Livewire Clock Master
Since a device such as a codec is often powered‐down or relocated, the recommended clock
priority setting for an Xstream is "0 (always slave)". Here is a bit of background on this topic.
Livewire's clocking system is automatic and largely transparent to end users. By default the Axia
hardware node with the lowest Ethernet MAC address will be the clock "master". The system
will automatically and transparently switch to a new unit as clock master if need be. We do,
however, permit a forced clock master to be assigned to a particular device (usually a node), or
to set certain nodes as "preferred" for clock mastership while maintaining automatic operation.
For example you may wish to assign nodes that are on UPS power as preferred clock masters.
Note that in the automatic modes, a new clock master is designated only when the current
master becomes unavailable (adding a new node will not change clock mastership regardless of
the new node's setting). The only exception to this rule is the 7 (Always Master) setting.
Section 8: LIVEWIRE – IP Audio 147
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