HelixNet | User Guide
20.9.2 Network Ports (HelixNet v.4)
Description / Value
Unicast
l Port 80 TCP – web interface, system management, expansion
l Port 655 TCP – Link Group audio/database
l Port 6001 TCP - System management
l Port 6001 UDP – Audio Streams
Multicast
l Port 5353 UDP – mDNS, names, discovery, linking, expansion. Optional for
device names and linking. Mandatory for HRM expansion
20.9.3 Network Parameters (HelixNet v.4)
Description / Value
Link Group endpoint
support
64 endpoints are made up of : user stations, active Interface ports,
program audio inputs and LQ accounts
Bandwidth
l 300 kbps each audio input linking between HMS/LQ (Link Group
audio sent dynamically between members)
l 300-600 (max) kbps from each audio input to HMS
l 1200-2400 (max) kbps from HMS to each endpoint
Network jitter
tolerance
<= 128ms jitter buffer per audio stream received, automatically adjusted
to network performance
QoS tags DSCP=46, High Priority/Expedited Forwarding (EF)
Default link-local IP
address range
169.254.0.0/16
Reserved IP ranges
l 10.0.0.0/8 for endpoints
l 172.23.0.0/16 for Link Group
20.9.4 Recommended Ethernet Switch Features (HelixNet v.4)
Required switch features
Managed Ethernet Switch – Layer 3
100/1000Base-T ports for endpoints
1000Base IP Trunks between switches
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