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which are performed on the colored packets. See
each metering algorithm.
10.3 The Quality of Service General Screen
Click Network Setting > QoS > General to open the screen as shown next.
Use this screen to enable or disable QoS and set the upstream bandwidth. See
page 139
for more information.
Figure 56 Network Settings > QoS > General
The following table describes the labels in this screen.
Table 36 Network Setting > QoS > General
LABEL
QoS
Upstream Auto-
priority
Assigned by
WAN Managed
Upstream
Bandwidth
VMG5313-B10A/-B30A Series User's Guide
DESCRIPTION
Select the Enable check box to turn on QoS to improve your network performance.
Select how the VMG assigns priorities to various upstream traffic flows.
•
None: Disables auto priority mapping and has the VMG put packets into the queues
according to your classification rules. Traffic which does not match any of the
classification rules is mapped into the default queue with the lowest priority.
•
Ethernet Priority: Automatically assign priority based on the IEEE 802.1p priority level.
•
IP Precedence: Automatically assign priority based on the first three bits of the TOS
field in the IP header.
•
Packet Length: Automatically assign priority based on the packet size. Smaller packets
get higher priority since control, signaling, VoIP, internet gaming, or other real-time
packets are usually small while larger packets are usually best effort data packets like
file transfers.
Enter the amount of upstream bandwidth for the WAN interfaces that you want to allocate
using QoS.
The recommendation is to set this speed to match the interfaces' actual transmission speed.
For example, set the WAN interfaces' speed to 100000 kbps if your Internet connection has
an upstream transmission speed of 100 Mbps.
You can set this number higher than the interfaces' actual transmission speed. The VMG
uses up to 95% of the DSL port's actual upstream transmission speed even if you set this
number higher than the DSL port's actual transmission speed.
You can also set this number lower than the interfaces' actual transmission speed. This will
cause the VMG to not use some of the interfaces' available bandwidth.
If you leave this field blank, the VMG automatically sets this number to be 95% of the WAN
interfaces' actual upstream transmission speed.
Chapter 10 Quality of Service (QoS)
Section 10.7 on page 149
for more information on
Section 10.1 on
141
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