Dell PowerConnect 5324 User Manual

42 Installing the PowerConnect Device
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MDI/MDIX
The device supports auto-detection of straight through and crossed cables on all switching
10/100/1000BaseT ports. The feature is part of the Auto-negotiation and is enabled when Auto-
negotiation is enabled.
When the MDI/MDIX (Media Dependent Interface with Crossover) is enabled, the automatic
correction of errors in cable selection is possible, making the distinction between a straight through
cable and a crossover cable irrelevant. (The standard wiring for end stations is known as MDI
(Media Dependent Interface), and the standard wiring for hubs and switches is known as MDIX.)
Flow Control
The device supports 802.3x Flow Control for ports configured with the Full Duplex mode. By
default, this feature is disabled. It can be enabled per port. The flow control mechanism allows the
receiving side to signal to the transmitting side that transmission must temporarily be halted to
prevent buffer overflow.
Back Pressure
The device supports back pressure for ports configured to half duplex mode. By default, this feature
is disabled. It can be enabled per port. The back pressure mechanism prevents the transmitting side
from transmitting additional traffic temporarily. The receiving side may occupy a link so it becomes
unavailable for additional traffic.
Switching Port Default Settings
The following table gives the port default settings.
Table 3-6. Port Default Settings
Function Default Setting
Port speed and mode 10/100/1000BaseT copper: auto-negotiation 100 full
duplex
Port forwarding state Enabled
Port tagging No tagging
Flow Control Off (disabled on ingress)
Back Pressure Off (disabled on ingress)

Dell PowerConnect 5324 Specifications

General

Switching Capacity	48 Gbps
VLAN Support	Yes
Rack Mountable	Yes
Device Type	Switch
MAC Address Table Size	8K entries
RAM	64 MB
Flash Memory	8 MB
Power Device	Internal power supply
Voltage Required	AC 120/230 V (50/60 Hz)
Jumbo Frame Support	Yes
Ports	24 x 10/100/1000 + 2 x SFP
Management	Web-based, SNMP, CLI
Enclosure Type	Rack-mountable
Routing Protocol	Static IP routing
Remote Management Protocol	SNMP 1, 2, 3
Features	Flow control, auto-negotiation, port mirroring, Quality of Service (QoS)
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3x
Operating Temperature	0 °C to 45 °C
Storage Temperature	-20 °C to 70 °C
Humidity	5% to 95% (non-condensing)
Layer	Layer 2