Load Balancing Routers
ExpiredWhat is a load balancing router?
A load balancing router is a router which can use more than one Internet connection simultaneously to provide internet access to devices connected to it.
One of the benefits of load balancing is that it allows a network to utilise more bandwidth than a single connection can provide but also it allows a site to gain resilience by relying on more than one network connection and removing a potential single point of failure.
Another benefit of load balancing could be to direct traffic to a different network connection based on the destination that needs to be reached. An example could be one WAN which is connected to a private network and another WAN which connects to the public internet.
The best load balancing routers will give flexibility on the load balancing rules which they can be configured with and will support multiple different connection types to gain diversity so that it’s unlikely that a network outage affects multiple connections simultaneously. For example if both connections use the same street side cabinet and a lorry knocks it out and takes both offline simultaneously.
A common approach could be to use one connection on FTTC & one on Mobile broadband (4G / LTE), or one FTTC and one FTTP so that the internet load balancing router is using different types of connection that are unlikely to be simultaneous affected by the same network outage.
For more information see our What is Load Balancing? article explaining load balancing in more detail.
| DrayTek Model | DSL WAN | Ethernet WAN | Integrated 5G/4G | Firewall Mb/s | IPSec VPN Mb/s | Wireless | VoIP Ports |
|---|---|---|---|---|---|---|---|
 Vigor 2865Vac | VDSL / ADSL |  | 1.3G | 800 | AC1300 | 2 | |
 Vigor 2865ac | VDSL / ADSL | | 1.3G | 800 | AC1300 | ||
 Vigor 2865 | VDSL / ADSL | | 1.3G | 800 | |||
 Vigor 2865Lax-5G | VDSL / ADSL | | 5G/4G | 1.3G | 800 | AX3000 | |
| Vigor 2865ax | VDSL / ADSL | | 1.3G | 800 | AX3000 | ||
 Vigor 2865L-5G | VDSL / ADSL | | 5G/4G | 1.3G | 800 | ||
 Vigor 2865Lac | VDSL / ADSL | | 4G | 1.3G | 800 | AC1300 | |
| Vigor 2866ac | G.fast / VDSL / ADSL2+ | | 1.3G | 800 | AC1300 | ||
| Vigor 2866ax | G.fast / VDSL / ADSL2+ | | 1.3G | 800 | AX3000 | ||
| Vigor 2866 | G.fast / VDSL / ADSL2+ | | 1.3G | 800 | |||
| Vigor 2866Lac | G.fast / VDSL / ADSL2+ | | 4G | 1.3G | 800 | AC1300 | |
| Vigor 2866Vac | G.fast / VDSL / ADSL2+ | | 1.3G | 800 | AC1300 | 2 | |
 Vigor 2927Lax-5G | 2 | 5G/4G | 1.8G | 800 | AX3000 | ||
 Vigor 2927Lac | 2 | 4G | 1.8G | 800 | AC1300 | ||
 Vigor 2927ax | 2 | 1.8G | 800 | AX3000 | |||
| Vigor 2927ac | 2 | 1.8G | 800 | AC1300 | |||
 Vigor 2927 | 2 | 1.8G | 800 | ||||
| Vigor 2928 | 1 + 1x(10Gb)ΔΔ | 9.3G | 430 | ||||
 Vigor 2962 | 3Δ +1x(2.5Gb) | 2.4G | 900 | ||||
 Vigor 3910 | 4 +2x(2.5Gb) | 10G | 3G | ||||
 Vigor 3912 | 4 +2x(2.5Gb) | 12.5G | 5G | ||||
| Vigor 3912S | 4 +2x(2.5Gb) | 12.5G | 5G |
All DrayTek VDSL products are BT MCT approved (SIN498 compliant).
✝ Virtual WAN interfaces.
Δ Port 2 is a combo interface (SFP or GbE). Check router specification for details.
ΔΔ 10G Combo Ports: P2 is WAN only; P3 can be set as WAN or LAN; P4 is LAN only. P2 and P3 cannot both be set as WAN.
Only two of the ports (P2, P3, P4) can be active at once; the third stays disabled. Check router specification for details.
* One or more LAN ports are shared with the WAN2 or other WAN ports. Check the router specification for details.
** Throughput figures quoted are maximums, based on fastest WAN port and optimal conditions, with Hardware Acceleration enabled where available. Usage of features of different WAN connection method may reduce maximum throughput.
^ Please visit the DrayTek Mesh Model Compatibility page for details.
This chart is provided for guidance only; please refer to the full specification of each model for the exact product capabilities. E&OE.
