QNAP TVS-472XT 4-Bay NAS Enclosure - Manual (Page 344)

Mode Description
Fault Tolerance (Failover)
Active-Backup
All traffic is sent and received using the interface that was first added to the
trunking group. If this primary interface becomes unavailable, the secondary
interface will become active.
Broadcast Transmits the same network packets to all the network interface cards.
Load balancing & Failover
Balance-tlb
Incoming traffic is received by the current interface. If the interface fails, a slave
interface takes over the MAC address of the failed interface. Outgoing traffic is
distributed based on the current load for each interface relative to the interface's
maximum speed.
Balance-alb Similar to Balance-tlb, but offers additional load balancing for incoming IPv4
traffic.
Balance-rr Transmits network packets sequentially to each network interface card in order to
distribute the internet traffic among all the NICs.
Balance-xor Transmits network packets using the Hash algorithm, which selects the same NIC
slave for each destination MAC address.
802.3ad dynamic Uses a complex algorithm to aggregate NICs and configure speed and duplex
settings.
10. Click Apply.
System Default Gateway
The system default gateway serves as the network access point for the NAS. By default, all external network
traffic will pass through the gateway. A network interface must be specified for the default gateway.
Configuring the System Default Gateway
1. Go to Control Panel > Network & File Services > Network & Virtual Switch .
The Network & Virtual Switch window opens.
2. Go to Network > Interfaces .
3. Click System Default Gateway.
The System Default Gateway window opens.
4. Configure the system default gateway.
Setting Description
Auto-select system default gateway QTS automatically detects all adapter, virtual switch,
PPPoE, and VPN connections that can be used to
connect to the internet. It selects one of these
connections and then sets it as the default gateway.
QTS 4.4.x User Guide
Network & Virtual Switch 343