D-Link DBG-2000 Product Manual 1 - Page 54

Round Robin

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DBG-2000 User Guide Load Tolerance: It is the percentage of bandwidth after which the gateway switches to secondary WAN. Max Bandwidth: This sets the maximum bandwidth tolerable by the primary WAN for outbound traffic. If the link bandwidth of outbound traffic goes above the max bandwidth load tolerance value, the gateway will spill over the next connections to the next WAN. For example, if the maximum bandwidth of a WAN is 1Kbps and the load tolerance is set to 70. Now, every time a new connection is established, the bandwidth increases. After a certain number of connections, say bandwidth reached 70% of 1Kbps, the gateway will spill over new outbound connections to the next WAN. The maximum value of load tolerance is 80%, and the minimum is 20%. Round Robin Round robin is an algorithm for load-balancing and is useful when the traffic load is distributed among all the WAN ports. When you select Roundrobin as Load Balancing, configure the fields available on the page. Field Load balancing Health check Primary WAN Secondary WAN Tertiary WAN Retry interval is Description Select Round robin. Select any one of the following options: None: Select this option if you do not want to check the WAN health. WAN DNS Servers: Select this option to detect the health of a WAN link using the WAN DNS servers configured in the WAN Settings page. DNS Servers: Select this option to use a specific DNS server for detecting WAN health, select DNS Servers, and enter the IP addresses of custom DNS servers for the primary, secondary, and tertiary WAN ports. Ping IP address: Select this option to detect WAN health by pinging to an IP address, select this option, and enter the IP addresses in the fields to ping from the primary, secondary, and tertiary WAN ports. Enter the primary DNS server or primary IP address to ping. Enter the secondary DNS server or secondary IP address to ping. Enter the tertiary DNS server or tertiary IP address to ping. This field is available only when all three WANs are configured. Enter the retry time duration in seconds to check the WAN health. By default, it is every 30 seconds. 54

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Load Tolerance
: It is the percentage of bandwidth after which the gateway switches to secondary WAN.
Max Bandwidth
: This sets the maximum bandwidth tolerable by the primary WAN for outbound traffic.
If the link bandwidth of outbound traffic goes above the max bandwidth load tolerance value, the gateway will spill over the next
connections to the next WAN.
For example, if the maximum bandwidth of a WAN is 1Kbps and the load tolerance is set to 70. Now,
every time a new connection is established, the bandwidth increases. After a certain number of connections,
say bandwidth reached 70% of 1Kbps, the gateway will spill over new outbound connections to the next
WAN. The maximum value of load tolerance is 80%, and the minimum is 20%.
Round Robin
Round robin is an algorithm for load-balancing and is useful when the traffic load is distributed among all the WAN ports. When you select
Round-
as Load Balancing, configure the fields available on the page.
robin
Field
Description
Load balancing
Select
.
Round robin
Health check
Select any one of the following options:
None
: Select this option if you do not want to check the WAN health.
WAN DNS Servers
: Select this option to detect the health of a WAN link using the
WAN DNS servers configured in the WAN Settings page.
DNS Servers
: Select this option to use a specific DNS server for detecting WAN
health, select DNS Servers, and enter the IP addresses of custom DNS servers for the
primary, secondary, and tertiary WAN ports.
Ping IP address
: Select this option to detect WAN health by pinging to an IP address,
select this option, and enter the IP addresses in the fields to ping from the primary,
secondary, and tertiary WAN ports.
Primary WAN
Enter the primary DNS server or primary IP address to ping.
Secondary WAN
Enter the secondary DNS server or secondary IP address to ping.
Tertiary WAN
Enter the tertiary DNS server or tertiary IP address to ping. This field is available only when
all three WANs are configured.
Retry interval is
Enter the retry time duration in seconds to check the WAN health. By default, it is every 30
seconds.
DBG-2000 User Guide
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