NETGEAR GS748T User Manual

125
GS748T Smart Switch
Click Refresh to redisplay the page with the latest information from the switch.
Forwarding Database
The forwarding database maintains a list of MAC addresses after having received a packet
from this MAC address. The transparent bridging function uses the forwarding database
entries to determine how to forward a received frame.
The Address T
able folder contains links to the following features:
• MAC Address Table on p
age 125
• Dynamic Address Configuration on p
age 126
• Static MAC Address on p
age 127
MAC Address Table
The MAC Address Table contains information about unicast entries for which the switch has
forwarding and/or filtering information. This information is used by the transparent bridging
function in determining how to propagate a received frame. Use the search function of the
MAC Address Table page to display information about the entries in the table.
To access this page, click Switching
 Address Table  Basic  Address Table.
Last Querier Version Displays the IGMP protocol version of the last querier from which a query
was snooped on the VLAN.
Operational Max Response
Ti
me
Displays the maximum response time to be used in the queries that are sent
by the snooping querier.
Field Description

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