SMC Networks Gateway TTTM5800X - Manual (Page 36)

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Enable Quality of Service
This option is disabled by default. Enable it for better performance and experience with interactive applications,
such as VoIP.
Automatic Classification
This option is enabled by default so that your router will automatically determine which programs should have
network priority.
Dynamic Fragmentation
This option should be enabled when you have a slow Internet uplink. It helps to reduce the impact that large low
priority network packets can have on more urgent ones by breaking the large packets into several smaller packets.
Automatic Uplink Speed
When enabled, this option causes the router to automatically measure the useful uplink bandwidth each time the
WAN interface is re-established (after a reboot, for example).
Measured Uplink Speed
This is the uplink speed measured when the WAN interface was last re-established. The value may be lower than
that reported by your ISP as it does not include all of the network protocol overheads associated with your ISP's
network. Typically, this figure will be between 87% and 91% of the stated uplink speed for xDSL connections and
around 5 kbps lower for cable network connections.
Uplink Speed
If Automatic Uplink Speed is disabled, this options allows you to set the uplink speed manually. Uplink speed is the
speed at which data can be transferred from the router to your ISP. This is determined by your ISP. ISPs often
specify speed as a downlink/uplink pair; for example, 1.5Mbits/284Kbits. For this example, you would enter "284".
Alternatively you can test your uplink speed with a service such as
www.dslreports.com . Note however that sites
such as DSL Reports, because they do not consider as many network protocol overheads, will generally note
speeds slightly lower than the Measured Uplink Speed or the ISP rated speed.
Connection Type
By default, the router automatically determines whether the underlying connection is an xDSL/Frame-relay network
or some other connection type (such as cable modem or Ethernet), and it displays the result as Detected xDSL or
Frame Relay Network. If you have an unusual network connection in which you are actually connected via xDSL
but for which you configure either "Static" or "DHCP" in the WAN settings, setting this option to xDSL or Other
Frame Relay Network ensures that the router will recognize that it needs to shape traffic slightly differently in
order to give the best performance. Choosing xDSL or Other Frame Relay Network causes the measured uplink
speed to be reported slightly lower than before on such connections, but gives much better results.
Detected xDSL or Frame Relay Network
When Connection Type is set to Auto-detect, the automatically detected connection type is displayed here.
Add/Edit Quality of Service Rule
Automatic classification will be adequate for most applications, and specific Quality of Service Rules will not be
required. A Quality of Service Rule identifies a specific message flow and assigns a priority to that flow.
Enable
Each entry in Quality of Service Rules List can be active (enabled) or inactive (disabled)
Name
Create a name for the rule that is meaningful to you.
Priority
The priority of the message flow is entered here. 0 receives the highest priority (most urgent) and 255 receives the
lowest priority (least urgent).
Protocol
The protocol used by the messages.
Source IP Range
The rule applies to a flow of messages whose LAN-side IP address falls within the range set here.
Source Port Range
The rule applies to a flow of messages whose LAN-side port number is within the range set here.
Destination IP Range