Optelecom-nkf Siqura C-54 E-MC User Manual page 51

Using the internal web pages
Session scope
Multicast IP range
Note on the Session Announcement Protocol (SAP): SAP, defined in
advertising multicast session information. A SAP announcer periodically broadcasts announcement
packets which include the session description information of all multicast sessions presented by the
announcer. SAP uses the Session Description Protocol (SDP) as the format of the session descriptions.
The announcement is multicast with the same scope as the session it is announcing, ensuring that the
recipients of the announcement are within the scope of the session the announcement describes. SAP
listening applications can listen to the announcements and use the information to construct a guide of all
advertised sessions. This guide can be used to select and start a particular session. The SAP announcer
is not aware of the presence or absence of SAP listeners.
The C-54 E can send multicast streams for both Encoder 1 and Encoder 2 for each video
input.
To view a C-54 E video stream in VLC using SAP, do the following
On the relevant Video Input web page (Advanced settings) of the C-54 E:
1. In the SAP settings section, select
2. Enter a stream name.
3. In the Session scope drop-down list, select
4. If you selected Administrative in the previous step, specify the Multicast IP range.
5. Enter the Stream Destination IP address and the port number.
The IP address must be within the scope range displayed for the Multicast IP range
parameter.
6. Enter/modify the values for Stream DSCP field, Multicast TTL, and Announcement
Interval, if desired.
Global, the default session scope, sets the Multicast IP range
parameter to 224.2.128.0-224.2.255.255 (IPv4 global scope
sessions). A SAP listening application will recognize the global scope
and automatically listen for SAP announcements at the
224.2.127.254 multicast IP address.
The Administrative session scope allows you to enter a custom IP
range within the 239.0.0.0-239.255.255.255 (IPv4 administrative
scope sessions) range. For an Administrative sessions scope, the
multicast address for SAP announcements will be set to the highest
address in the relevant administrative scope. For example, for a
scope range of 239.16.32.0-239.16.33.255, the IP address
239.16.33.255 is used for SAP announcements.
See Session scope.
Enable SAP
- 47 -
RFC 2974
.
or .
Global Administrative
is a protocol for