NETGEAR GS748T User Manual

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GS748T Smart Switch
To configure global CoS settings:
1. Select
the Global radio button to configure the trust mode settings that apply to all
interfaces.
Alternatively, you can select the Inte
rface radio button to apply trust mode settings to
individual interfaces. The per-interface setting overrides the global settings.
2. Select th
e trust mode for all interfaces (Global Trust Mode) or the selected interface
(Interface Trust Mode). This setting determines the type of CoS marking to trust when the
frame enters the port.
• Untruste
d. Do not trust any CoS packet marking at ingress.
• 8
02.1p. The eight priority tags that are specified in IEEE 802.1p are p0 to p7. The
QoS setting lets you map each of the eight priority levels to one of eight internal
hardware priority queues.
• DSCP.
The six most significant bits of the DiffServ field are called the Differentiated
Services Code Point (DSCP) bits.
3. Click Canc
el to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch.
4. If you ch
ange any of the settings on the page, click Apply to send the updated configuration
to the switch.
CoS Interface Configuration
Use the CoS Interface Configuration page to apply an interface shaping rate to all interfaces
or to a specific interface.
To display the CoS Interface Configuration page, click the QoS
 CoS tab, and then click the
Advanced
 CoS Interface Configuration link.

NETGEAR GS748T Specifications

General

Basic switching RJ-45 Ethernet ports quantity	48
MAC address table	16000 entries
Packet buffer memory	1.632 MB
Maximum data transfer rate	1 Gbit/s
Latency	20 µs
I/O ports	48 RJ-45 connectors for 10BASE-T, 100BASE-TX, and 1000BASE-T (Auto Uplink on all ports) 4 SFP slots for fiber Gigabit Ethernet modules
Dimensions (WxDxH)	440 x 260 x 43 mm
Power requirements	100-240VAC 50/60 Hz
Networking features	10BASE-T, 100BASE-TX, 1000BASE-T
Connectivity technology	Wired
Full duplex	Yes
Networking standards	IEEE 802.3x
Minimum system requirements	Category 5 network cables Network card for each PC Network software (e.g., Windows)
Mean time between failures (MTBF)	69930 h
Safety	UL listed (UL 1950)/cUL, IEC950/EN60950
LED indicators	Link, Power
Power consumption (typical)	70 W
Storage temperature (T-T)	-10 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 90 %

Weight and Dimensions

Weight	4000 g