Model
TP-Link TL-SG108E
Features
Managed
Ports
Tags
Labels
Notes
TL-SG108E — Core Managed Switch
Model: TP-Link TL-SG108E Type: Easy Smart Managed Switch Layer: Layer-2 only Ports: 8 x 10/100/1000 Mbps (auto-negotiating) Switching Capacity: 16 Gbps Power: UPS-protected (cps_value600eigp)
Sits directly between the ISP NTD and the UCG-Ultra gateway. Also carries a second uplink down to ls108g, and hosts forge's two LAN legs (including the SPAN/mirror source). Verified 2026-07-29 by physical audit (hand-drawn wiring map + on-site port trace) — supersedes all earlier port-mapping text, which described the pre-UCG-Ultra (pihole-as-gateway) topology.
Physical Port Mapping
| Port | Connected To | Role |
|---|---|---|
| 1 | ls108g:1 | Downlink to LAN distribution switch |
| 2–4 | — | Unused |
| 5 | forge eth0 | LAN |
| 6 | forge eth1 | SPAN / mirror source |
| 7 | NBN NTD | WAN uplink |
| 8 | ucg-ultra:1 | Uplink to gateway |
Topology Position
Internet → NBN NTD → tl-sg108e → ucg-ultra (L3 boundary) → usw-lite-8-poe → gs608v4 / ls108g → LAN
No child systems / services
Ports
rj45 — 1 Gbps (8 ports)
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