Control central and
paging desk
15. NETWORK SPECIFICATIONS
The Optimax PA system supports audio and control data communication through Ethernet and IP
networks. Since it works on levels 3 and 4 of the OSI scale, the Optimax protocol supports
communication through routers (IP protocol) by means of the configurations of the gateways and
subnetwork masks. Thanks to these features, Optimax can work on both LANs and WANs.
Most of the communications in the Optimax systems use multicast. Multicast is an effective means of
providing transit services from one sender to many receivers. It is absolutely essential to exhaustively
and rigorously check the network configuration in order to ensure that the system operates correctly.
The multicast networks include a wide range of protocols, from filter protocols (IGMP, MLD) to routing
protocols (MOSPF, DVMRP, PIM-DM and PIM-SM/SSM).
Optimax incorporates an application-level control (ACK) (level 7 of the OSI scale) of the management
data sent.
1. Default multicast base addresses, ports and configurations
Initial configuration download
Initial configuration download
Heart beat every 10 seconds
2. Valid ranges (according to the IANA Guidelines for IPv4 Multicast Address)
Between 239.0.0.0 and
239.255.255.255
Heart beat between 1 and 65000
seconds.
Between 239.0.0.0 and
239.255.255.255
1-50 simultaneous channels
Between 239.0.0.0 and
239.255.255.255
1-50 simultaneous channels
3. Local network (LAN) specifications
- Dedicated VLAN
- Bandwidth: 4 Mb for each audio channel.
- Number of audio channels:
Up to 50 global channels (from the exchange to the satellites)
Up to 50 local channels (internal to the satellite, they do not consume backbone bandwidth)
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