Dell PowerConnect 3548 User Manual

444 Configuring Quality of Service
Queue Settings
• Strict Priority — Indicates the system queues are SP queues, when selected.
•
WRR — Indicates the system queues are WRR queues, when selected.
Enabling Quality of Service:
1 Open the Global Settings page .
2 Select Enable in the Quality of Service field.
3 Click Apply Changes .
Class of Service is enabled on the device.
Enabling the Trust Mode:
1 Open the Global Settings page .
2 Define the Trust Mode field.
3 Click Apply Changes .
Trust mode is enabled on the device.
Enabling Trust Using the CLI Commands
The following table summarizes the equivalent CLI commands for configuring fields in the Global
Settings page.
The following is an example of the CLI commands:
This section contians the following topics:
• "Defining QoS Interface Settings" on page 445
• "Defining Bandwidth Settings" on page 446
• "Mapping CoS Values to Queues" on page 448
• "Mapping DSCP Values to Queues" on page 450
Table 9-3. QoS Settings CLI Commands
CLI Command Description
qos trust [cos | dscp] Configures the system to trust mode.
no qos trust Returns to the non-trusted state.
console(config)# qos trust dscp

Dell PowerConnect 3548 Specifications

General

MAC address table	8000 entries
Maximum data transfer rate	0.1 Gbit/s
Supported data transfer rates	10/100 Mbps
10G support	-
Number of VLANs	256
Flow control support	Yes
Networking standards	IEEE 802.1D, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1s, IEEE 802.1w, IEEE 802.3ad
Dimensions (WxDxH)	440 x 257 x 43.2 mm
Networking features	Gigabit Ethernet, Fast Ethernet
Authentication method	RADIUS, TACACS+
Connectivity technology	Wired
Switch type	Managed
Switch layer	L2
Data link protocols	Ethernet
Supported network protocols	HTTP, HTTPS/SSL, SSH
Power connector	DC-in jack
SFP/SFP+ slots quantity	2
Basic switching RJ-45 Ethernet ports quantity	48
Product color	Black
Storage temperature (T-T)	-20 - 70 °C
Operating temperature (T-T)	0 - 45 °C
Storage relative humidity (H-H)	10 - 95 %
Operating relative humidity (H-H)	10 - 90 %

Weight and Dimensions

Weight	8000 g