LAWO edge, Руководство пользователя

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edge - User Manual
Version: 1.0.13/1 Exported on: 22 February, 2024 72 / 154
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6.8 .edge - Multicast IP Addresses
This topic describes how to define the multicast addresses for the IP senders.
Overview
In order to publish streams to the network, each IP sender must be assigned a unique multicast IP address. As there are
many streams to configure, the system provides two ways of automating the process plus a third option to configure the
addresses manually.
Option 1 - SRC IP-Based . The multicast addresses are allocated automatically based on the source IPs of the media
ports.
Option 2 - Custom . The user must define a start address for each essence: Video, Audio and Meta. The rest of the
multicast addresses are then allocated automatically (using the same rules as option 1).
Option 3 - Manual . The user must define each multicast address manually.
The first option is the simplest as it offers complete automation. The second two options can be used if you need more
manual control (e.g. to fit an existing multicast scheme). The tables below describe the formula used for options 1 and 2.
Source IP-Based Assign Mode
In this mode, the multicast IP addresses are generated automatically using the following formula:
1st Octet 2nd Octet 3rd Octet 4th Octet
Media Port
Source IP aaa bbb ccc ddd
Multicast IP
Address 239 ccc ddd xxx
Always 239 (this is
fixed) Matches 3rd octet of
the source IP Matches the 4th octet
of the source IP Generated automatically as
follows:
1 to 32 - assigned to
video streams: 1 =
video from SDI 1; 2 =
video from SDI 2; etc.
33 to 128 - assigned
to audio streams: 33
= audio block 1 from
SDI 1; 34 = audio
block 2 from SDI 1;
etc.
161 to 184 - assigned
to meta steams: 161 =
metadata from SDI 1;
162 = metadata from
SDI 2; etc.
Custom Assign Mode
In this mode, the multicast IP addresses are generated according to the Start IP values (entered in HOME).