Dell PowerConnect 3524 User Manual

306 QoS Commands
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example maps DSCP values 33, 40 and 41 to queue 1.
qos trust (Global)
The qos trust Global Configuration mode command configures the system to the basic mode and trust
state. Use the no form of this command to return to the untrusted state.
Syntax
• qos trust { cos | dscp }
• no qos trust
• cos — Indicates that ingress packets are classified with packet CoS values. Untagged packets are
classified with the default port CoS value.
•
dscp — Indicates that ingress packets are classified with packet DSCP values.
Default Configuration
CoS is the default trust mode.
Command Mode
Global Configuration mode.
User Guidelines
• Packets entering a quality of service (QoS) domain are classified at the edge of the QoS domain. When
packets are classified at the edge, the switch port within the QoS domain can be configured to one of
the trusted states because there is no need to classify the packets at every device in the domain.
• Use this command to specify whether the port is trusted and which fields of the packet to use to
classify traffic.
• When the system is configured as trust DSCP, traffic is mapped to a queue according to the DSCP-
queue map.
Console(config)# qos map dscp-queue 33 40 41 to 1
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Dell PowerConnect 3524 Specifications

General

Throughput	9.5 Mpps
Number of queues	4
MAC address table	8000 entries
Maximum data transfer rate	0.1 Gbit/s
Supported data transfer rates	10/100 Mbps
10G support	No
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
Input frequency	50/60 Hz
Weight (imperial)	11 lbs
Dimensions (WxDxH)	440 x 257 x 43.2 mm
Networking features	Gigabit Ethernet, Fast Ethernet
Authentication method	RADIUS, TACACS+
Connectivity technology	Wired
Dimensions (W x D x H) (imperial)	17.3 x 10.12 x 1.7 \
Switch type	Managed
Switch layer	L2
Data link protocols	Ethernet
Supported network protocols	HTTP, HTTPS/SSL, SSH
Power connector	DC-in jack
Gigabit Ethernet (copper) ports quantity	2
Basic switching RJ-45 Ethernet ports quantity	24
Product color	Black
Power source	AC
Input voltage	100 - 240 V
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	5000 g