User`s guide

VigorIPPBX 3510 Series User’s Guide
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Enable the QoS Control The factory default for this setting is checked.
Please also define which traffic the QoS Control settings will
apply to.
IN- apply to incoming traffic only.
OUT-apply to outgoing traffic only.
BOTH- apply to both incoming and outgoing traffic.
Check this box and click OK, then click Setup link again.
You will see the Online Statistics link appearing on this page.
WAN Inbound Bandwidth It allows you to set the connecting rate of data input for WAN.
For example, if the connection supports 1M of downstream
and 256K upstream, please set 10000kbps for this box. The
default value is 10000kbps.
WAN Outbound Bandwidth It allows you to set the connecting rate of data output for
WAN. For example, if the connection supports 1M of
downstream and 256K upstream, please set 256kbps for this
box. The default value is 10000kbps.
Note: The rate of outbound/inbound must be smaller than the real bandwidth to ensure
correct calculation of QoS. It is suggested to set the bandwidth value for inbound/outbound
as 80% - 85% of physical network speed provided by ISP to maximize the QoS
performance.
Reserved Bandwidth Ratio It is reserved for the group index in the form of ratio of
reserved bandwidth to upstream speed and reserved
bandwidth to downstream speed.
Enable UDP Bandwidth
Control
Check this and set the limited bandwidth ratio on the right
field. This is a protection of TCP application traffic since
UDP application traffic such as streaming video will exhaust
lots of bandwidth.
Outbound TCP ACK
Prioritize
For the download speed might be impacted by the uploading
TCP ACK, you can check this box to push ACK of upload
faster to speed the network traffic.