User Manual

24-Port Gigabit (Hi-Power) PoE+ Ethernet Smart Managed Pro Switch with 2 SFP Ports
Configure Quality of Service User Manual209
• DSCP. The six most significant bits of the DiffServ field are called the Differentiated
Services Code Point (DSCP) bits.
10. In the Interface
Shaping Rate field, specify the maximum outbound transmission rate
bandwidth in kbps.
This setting is used to shape the outbound transmission rate in increments
of 1 percent in
a range of 0–100. This value is controlled independently of any per-queue maximum
bandwidth configuration. It is effectively a second-level shaping mechanism. The default
value is 0. The value 0 means that the maximum is unlimited.
The expected shaping at egress interface is calculated as follows:
frameSize × shaping/(frameSize + IFG), where IFG (Inter frame gap) is 20 bytes,
frameSize is configured frame size, and shaping is configured traffic shaping.
For example, if 64 bytes frame size and 64 kbps shaping are con
figured, the expected
shaping is approximately 48 kbps.
11. In the Interface
Ingress Rate Limit field, specify the maximum inbound transmission rate
bandwidth in kbps.
This setting is used to shape the inbound transmission rate in increments of 1 percent in
a range of 0–100. The interface discards traf
fic that arrives at a bandwidth in excess of
the specified limit.
12. Click the Apply
button.
Your settings are saved.
Configure the CoS queue settings for an interface
You can define what a particular queue does by configuring switch egress queues. You can
control how much bandwidth is used by the queue, the queue depth during times of
congestion, and the scheduling of packet transmission from all queues on a port. Each port
contains its own CoS queue-related configuration.
For information about configuring CoS queue settings globally, see
Configure the global
CoS settings on page 206.
To configure the CoS queue settings for an interface:
1. Connect your
computer to the same network as the switch.
You can use a WiFi or wired connection to connect your computer to the network, or
connect directly to a switch that is off-network using an Ether
net cable.
2. Launch a web browser.
3. In the address field of your web browser, enter the IP address of the switch.
If you do not know the IP address of the switch, see
Access the switch on-network and
connected to the Internet on page 19 or Access the switch off-network and not
connected to the Internet on page 27.
The Device UI login page displays.