Network Setup: AV over IP Switch Configuration

Network Setup: AV over IP Switch Configuration

Overview

AV over IP requires a managed switch with specific settings. Unmanaged switches are not supported. All encoders and decoders must connect to a managed switch with the settings below applied.

Required Switch Settings

1. IGMP Snooping

Must be enabled globally and on the AV VLAN. Without it, multicast video floods every port, saturating bandwidth and causing no signal. Also enable IGMP Querier on the AV VLAN if no multicast router is present.

2. Jumbo Frames (MTU 9000)

Required for JPEG2000 and SDVoE. Set MTU to 9000 on all AV switch ports. H.265 can use standard 1500-byte MTU.

3. Flow Control

Disable flow control (IEEE 802.3x) on all AV ports. It causes buffering and latency spikes in real-time video.

4. Port Speed

  • JPEG2000 and H.265: 1Gbps
  • SDVoE: 10Gbps

VLAN Configuration (Recommended)

  1. Create a dedicated VLAN for AV traffic (e.g., VLAN 100).
  2. Assign all encoder and decoder ports as untagged members of the AV VLAN.
  3. Enable IGMP snooping and IGMP querier on the AV VLAN.
  4. Ensure the IP controller is on the same VLAN or configure inter-VLAN routing.

IP Addressing

  • Recommended subnet: 192.168.100.x / 255.255.255.0
  • Static IPs recommended for production installs.
  • Default: KanexPro devices use DHCP. Assign static IPs via web GUI after first connection.

Bandwidth Planning

CodecResolutionBandwidth/StreamNetwork
JPEG20004K60~500 Mbps1G (1 stream per port)
H.2654K60~30–80 Mbps1G (multiple per port possible)
H.2651080p60~10–20 Mbps1G
SDVoE4K60~9.5 Gbps10G (dedicated per stream)

Multicast vs. Unicast

JPEG2000 and H.265 use multicast by default — one encoder to many decoders at no extra bandwidth cost. SDVoE uses unicast point-to-point connections.

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