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Extron Electronics SME 100 User Guide User Manual

Page 98

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QoS (Differentiated Service) — Quality of Service allows specified network
traffic to be guaranteed a certain level of priority. The QoS includes maintaining a
specified level of bandwidth, latency, and packet loss. QoS allows for control of the
bandwidth in a network resulting in greater reliability. Differentiated Services Code
Point (DSCP), or Diffserv (RFC 2474), is used for classifying network traffic and
providing QoS.
The SME 100 provides the following QoS settings:

Best effort (DSCP [000000])

Low (CS2 or DSCP [010000])

Normal (CS3 or DSCP [011000])

High (CS4 or DSCP [100000])

Highest (CS5 or DSCP [101000])

SAP Control — Session announcement protocol (SAP) is used to broadcast
a session to the network. This control provides options to enable or disable the
announcement, provide a session name, session description, keywords, author,
and announce frequency fields to describe and identify the stream.
The following text fields can be edited and can be up to 32 characters long, but
cannot contain the backslash ( \ ), single ( ‘ ), or double ( “ ) quotation marks.

Session Name — This field contains the name of the streaming session being
broadcast to the network.

Session Description — This field is used by the SAP to describe the
streaming session.

Keywords — This field assists with identifying sessions, allowing the receiver
to select a session based on the keywords entered here and describing the
purpose of the stream.

Author — This field identifies either the creator of the SAP or the streaming
media encoder whichever is more useful or appropriate.

Announce Frequency — Specifies how often a session announcement is
conveyed to users. If the frequency is 0, the frequency is calculated according

to the SAP RFC standard.

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