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Select Network Interface per Protocol - Allow users to bind each protocol (NDI, SRT, streaming, control/PTZ) to a dedicated network adapter
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gugacdb  
#1 Posted : Friday, May 30, 2025 3:53:32 AM(UTC)
gugacdb

Rank: Newbie

Groups: Registered
Joined: 2/5/2018(UTC)
Posts: 7
Location: Brasil

Thanks: 2 times
Greetings, everyone!

I am a vMix programmer at Casablanca Online, a leading company in broadcast solutions in Brazil. For more details about our company, visit our website: https://www.casablancaonline.com.br/?lang=en.

Current Situation:
vMix handles NDI, SRT, built-in streaming and control traffic over a single network interface. High-bandwidth flows (4K NDI, SRT feeds, live streaming) compete on the same link, causing congestion, packet loss and latency spikes.

Suggestion:
Implement a **per-protocol network-interface selector**, configurable globally and per-input/output:

• NDI Inputs: bind to "Video LAN" (e.g. 192.168.10.x)
• SRT Outputs: bind to "SRT Network" (e.g. 10.0.0.x)
• Streaming: bind to "WAN/Internet" adapter
• Control & PTZ: bind to "Corporate LAN"

This allows each service to use its own NIC or VLAN, reducing collisions, jitter and ensuring predictable performance.

Versão em Português:

Sou programador de vMix na Casablanca Online, uma empresa líder em soluções de broadcast no Brasil. Para mais detalhes, visite: https://www.casablancaonline.com.br/?lang=en.

Situação Atual:
vMix envia NDI, SRT, streaming e controle pela mesma interface de rede, gerando congestionamento, perda de pacotes e latência elevada em fluxos de alta demanda (NDI 4K, SRT, live).

Sugestão:
Adicionar um **seletor de interface de rede por protocolo**, configurável globalmente e individualmente para cada entrada/saída:

• Entradas NDI: vincular à "Vídeo LAN" (sub-rede 192.168.10.x)
• Saídas SRT: vincular à "Rede SRT" (sub-rede 10.0.0.x)
• Streaming ao vivo: vincular ao adaptador "WAN/Internet"
• Controle & PTZ: vincular à LAN corporativa[color=olive]

Isso garante que cada protocolo utilize NIC/VLAN dedicada, reduzindo colisões, jitter e mantendo performance estável.
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danielwinst  
#2 Posted : Tuesday, June 24, 2025 9:50:58 PM(UTC)
danielwinst

Rank: Newbie

Groups: Registered
Joined: 8/1/2024(UTC)
Posts: 2
United States
Location: Texas
As an idea for you that may help with this.

I do many shows a year where we push upwards of 2.5-3Gbps of input traffic and 30-40 video inputs ranging from NDI, hardwire, SRT and more. I would recommend getting a higher speed USB or Thunderbolt NIC. We are currently using a thunderbolt 4 10Gbps NIC paired with a Multi-gig Switch. All the video traffic comes into the switch and is consolidated to the PC on the 10G uplink to the PC. The outbound stream (SRT, NDI, and RTMP) is then kept to about 500Mbps. With this all the heavy network traffic stays on the local 10G switch and we have plenty of overhead with no network issues. We have used this in hotels, City Parks, and many more bandwidth challenged sites with great success. This can be done for a minimal cost depending on the switch you go with.
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