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Setting Network Traffic Throttling Rules

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You can define network throttling rules to limit the maximum throughput of traffic going from source to target in the backup infrastructure.

Network traffic throttling rules are created and enforced globally, at the level of the backup server. Rules are set not for a single IP address, but for a pair of IP address ranges: on the source side and on the target side. If IP addresses of the backup infrastructure components fall into the specified source and target IP ranges of the rule, the rule is applied to these components.

Setting Network Traffic Throttling Rules Note:

Network throttling rules are applied to backup infrastructure components on which Veeam Data Mover Services are deployed. For more information, see Network Traffic Throttling and Multithreaded Data Transfer.

To create a network throttling rule:

From the main menu, select Network Traffic.
In the Global Network Traffic Rules window, click Add.
In the Source IP address range section, specify a range of IP addresses for backup infrastructure components on the source side.
In the Target IP address range section, specify a range of IP addresses for backup infrastructure components on the target side.
Select the Throttle network traffic check box.
In the Throttle to field, specify the maximum speed that must be used to transfer VM data from source to target.
In the Apply throttling section, specify the time interval during which the rule must be enforced. You can select to use throttling rules all the time or schedule traffic throttling at specific time intervals, for example, during business hours to minimize the impact of data protection activities on the production network.

Setting Network Traffic Throttling Rules

If you create several traffic throttling rules for the same range of IP addresses, make sure that time intervals when these rules are enforced do not overlap. For example, to manage network traffic during business and non-business hours, you can create two network traffic throttling rules:

Rule 1 limits the speed to 1 Mbps Monday through Friday from 7 AM to 7 PM.
Rule 2 limits the speed to 10 Mbps on weekends and from 7 PM to 7 AM on weekdays.

In this case, Veeam Backup & Replication will limit the data transfer speed to 1 Mbps during business hours, while during non-business hours the speed will be limited to 10 Mbps.

If several throttling rules use the same target IP address range but have different speed limits, the rule with the lowest transfer speed will be used. For example, you have configured two rules:

Rule 1 limits the speed to 4 Mbps: source IP range 192.168.0.1 - 192.168.0.30 and target IP range 192.168.0.1 - 192.168.0.255
Rule 2 limits the speed to 1 Mbps: source IP range 192.168.0.1 - 192.168.0.255 and target IP range 192.168.0.1 - 192.168.0.255

Veeam Backup & Replication will use the lowest transfer speed for backup infrastructure components that fall into the source and target IP ranges — that is, a 1 Mbps rule.

Setting Network Traffic Throttling Rules Tip:

You can view which network traffic throttling rules apply to an off-host backup proxy at the Traffic step of the backup proxy wizard.