Quick answer: Any managed switch with IGMP snooping + IGMP querier and (for 4K) 9216-byte jumbo frames will run KD AVoIP. The brands below are confirmed verified by Key Digital engineering.
Why AV over IP needs a managed switch
Key Digital AVoIP systems use multicasting to broadcast video streams across the network. Without IGMP management, multicast traffic floods every port and the system fails. The switch must therefore filter and direct multicast traffic (IGMP snooping), elect a device to manage multicast groups (IGMP querier), and — for 4K — carry the large packets the M-JPEG 2000 stream uses (jumbo frames).
System facts (what your switch must carry)
4K systems — KD-IP822, KD-IP922, KD-IP1022
- Compression: Motion JPEG 2000
- Stream bandwidth: under 900 Mbps
- 4K @ 60/30 Hz: ≤ 850 Mbps
- 1080p @ 60 Hz: ≤ 250 Mbps
- 1080i / 720p @ 60 Hz: ≤ 125 Mbps
- Latency: ≈ 40 ms at 4K (lower at lower resolutions)
- PoE draw: ≤ 9 W per unit
- Cabling: CAT6 UTP/STP, CAT6A, or CAT7 — minimum 23 AWG for best performance
1080p systems — KD-IP1080, KD-IP120
- Compression: H.264
- Stream bandwidth: under 15 Mbps
- 1080p @ 60 Hz: ≤ 15 Mbps
- 1080i / 720p @ 60 Hz: ≤ 12 Mbps
- Latency: ≈ 400 ms at 1080p (lower at lower resolutions)
Setup differs between 4K (KD-IP922/822/1022) and 1080p (KD-IP1080/IP120) systems. Where a switch supports both, follow the section that matches your encoders/decoders.
Switch requirements checklist
| Requirement | 4K systems | 1080p systems |
|---|---|---|
| Managed switch | Required | Required |
| IGMP snooping | Required | Required |
| IGMP querier (V2) | Required | Required |
| Fast Leave | Recommended | Recommended |
| Jumbo frames (9216 bytes / 8K) | Required | Not required |
| Static IP on switch | Required | Required |
| Reserved IP addresses | Required (see system setup) | As applicable |
| Gigabit ports / PoE | Required | Required |
Verified network switches
Key Digital engineering has verified the following switches for AVoIP. Each links to step-by-step configuration in the sections that follow.
| Brand | Verified models (examples) | IGMP Snooping | IGMP Querier | Jumbo Frames |
|---|---|---|---|---|
| Araknis | AN-210-SW-R-8-POE (and 210 series) | ✅ | ✅ | ✅ |
| Cisco Meraki | MS225 | ✅ | ✅ | ✅ |
| Cisco SG / SF | SG300-28, SG350, SF500-48 (SF = 1080p only) | ✅ | ✅ | ✅ |
| Cisco Catalyst | C3850 Series | ✅ | ✅ | ✅ |
| D-Link | DGS-3630-52PC / DGS-3630 Series | ✅ | ✅ | ✅ |
| Edgecore | AS4610-54T (Cumulus Linux 3.7.15) | ✅ | ✅ | ✅ |
| EnGenius | (verified models) | ✅ | ✅ | ✅ |
| Linksys | LGS552P, LGSxxxMPC series, + legacy | ✅ | ✅ | ✅ |
| Luxul | AMS-4424P, SW-610-24P-R, SW-510-48P-F | ✅ | ✅ | ✅ |
| Netgear | AV line (M4250-class), GS Series (GS716T) | ✅ | ✅ | ✅ |
| Niveo | NGSME24TH-AV | ✅ | ✅ | ✅ |
| Pakedge | S3L-24P (S3L), SX Series | ✅ | ✅ | ✅ |
| Signamax | SC30020 | ✅ | ✅ | ✅ |
| Titan Networx | (verified models) | ✅ | ✅ | ✅ |
| TP-Link | TL-SG2428P (TL Series) | ✅ | ✅ | ✅ |
Capabilities reflect Key Digital's verification testing. Always apply the per-brand settings below.
The settings every switch needs (summary)
Across all verified switches the configuration pattern is the same — only the menu locations differ:
- Factory-reset the switch and connect a PC directly for setup.
- Set a static IP on the switch (off the AVoIP device range).
- Enable IGMP snooping on VLAN 1, with Fast Leave.
- Enable the IGMP querier on VLAN 1 — set Querier Version to V2.
- For 4K systems, set jumbo frame size to 9216 bytes (8K) on all ports.
- Save to startup configuration and reboot the switch.
- Connect encoders/decoders, allow ~3 minutes for boot, and scan with the Key Digital App.
Per-brand configuration
(Each brand below mirrors the step-by-step in the original guide — Araknis, Cisco SG/SF, Cisco Catalyst 3850, Cisco Meraki, D-Link DGS-3630, Edgecore, EnGenius, Linksys LGS/Legacy, Luxul, Netgear AV/GS, Niveo, Pakedge S3L/SX, Signamax, Titan Networx, TP-Link TL — including separate 4K vs 1080p instructions where applicable.)
Frequently asked questions
Which network switch is best for Key Digital AV over IP? Any switch on the verified list above. For new 4K installs, the Netgear AV line, Cisco SG/Catalyst, Araknis, Luxul, and Pakedge are common choices — all support IGMP snooping, an IGMP querier, and 9216-byte jumbo frames.
Do I need jumbo frames for AV over IP? Yes for 4K systems (KD-IP822/922/1022) — set jumbo frames to 9216 bytes. 1080p systems (KD-IP1080/IP120) do not require jumbo frames.
Can I use an unmanaged switch for AVoIP? No. AVoIP relies on multicast management (IGMP snooping + querier), which unmanaged switches don't provide. Use a verified managed switch.
What IGMP querier version does Key Digital require? IGMP Querier Version 2 (V2), enabled on VLAN 1, with IGMP snooping and Fast Leave.
What cabling should I use? CAT6 UTP/STP, CAT6A, or CAT7, ideally 23 AWG, for both 4K and 1080p systems.
Related: AV over IP Solutions · KD-IP922ENC · KD-IP822ENC · HDMI over IP white paper · Key Digital App
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