
Synology NAS User's Guide
Based on DSM 4.3
43 Chapter 7: Enhance Internet Security
Configure Bandwidth Settings
After selecting a service, you will need to set Guaranteed Bandwidth and Maximum Bandwidth to limit its
outgoing traffic.
Guaranteed Bandwidth
Defines the outgoing traffic a service guarantees to serve when the whole system bandwidth is wide enough.
Maximum Bandwidth
Defines the outgoing traffic this service can borrowed when the whole system bandwidth is enough and there
is System Remaining Bandwidth. It is suggested that the system manager calculate System Output
Bandwidth first and then make sure the sum of Guaranteed Bandwidth for each service is not greater than
System Output Bandwidth, or the setting may not work correctly.
Setting Formula
System Output Bandwidth = Sum of Guaranteed Bandwidth of each service + System Remaining
Bandwidth
Guaranteed Bandwidth for each service ≤ Maximum Bandwidth for each service
Prevent Attacks over the Internet
Denial-of-service (DoS) protection helps to prevent malicious attacks over the Internet. Go to Main Menu >
Control Panel > Firewall and QoS > Security to enable DoS protection and improve network security.
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