NETGEAR GS748T User Manual

100
GS748T Smart Switch
• Bridge Forward Delay (secs). Specifies the switch forward delay time, which
indicates the amount of time in seconds a bridge remains in a listening and learning
state before forwarding packets. The value must be greater or equal to (Bridge Max
Age / 2) + 1. The time range is from 4 seconds to 30 seconds. The default value is 15.
• S
panning Tree Maximum Hops. Specifies the maximum number of bridge hops the
information for a particular CST instance can travel before being discarded. The valid
range is 1–127.
2. Click Cancel
to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch
3. If
you make any configuration changes, click Apply to send the updated configuration to the
switch. Configuration changes take place immediately.
The following table describes the MSTP status informatio
n displayed on the Spanning Tree
CST Configuration page.
Field Description
MST ID Table consisting of the MST instances (including the CST) and the corresponding VLAN IDs
a
ssociated with each of them.
VID Table consisting of the VLAN IDs and the corresponding FID associated with each of them
FID Table consisting of the FIDs and the correspond
ing VLAN IDs associated with each of them.
Click Refresh to update the information on the screen with the most current data.
CST Port Configuration
Use the Spanning Tree CST Port Configuration page to configure Common Spanning Tree
(CST) and Internal Spanning Tree on a specific port on the switch.
To display the Spanning Tree CST Port Configuration page, click Switc
hing  STP 
Advanced
 CST Port Configuration.

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