NETGEAR GS748T User Manual

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GS748T Smart Switch
To search for an entry in the MAC Address Table:
1. Use the Search By
field to search for MAC Addresses by MAC Address, VLAN ID, or
Interface.
• MAC Address: Se
lect MAC Address from the menu and enter a six-byte
hexadecimal MAC address in two-digit groups separated by colons, then click Go. If
the address exists, that entry will be displayed. An exact match is required.
• VLAN ID: Se
lect VLAN ID from the menu, enter the VLAN ID, for example, 100. Then
click Go. If any entries with that VLAN ID exist they are displayed.
• Interface: Select Interfac
e from the menu, enter the interface ID in g1, g2... format,
then, click Go. If any entries learned on that interface exist, they are displayed.
2. Click Clear t
o clear Dynamic MAC Addresses in the table.
3. Click Refresh to red
isplay the page to show the latest MAC Addresses.
4. Click Cancel
to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch.
The following table describes the information available for e
ach entry in the address table.
Field Description
VLAN ID Specifies the VLAN ID on which the IGMP Snooping Querier is
administratively enabled and for which VLAN exists in the VLAN database.
MAC Address A unicast MAC address for which the switch has forwarding and/or filtering
in
formation. The format is a six-byte MAC address with each byte separated
by colons. For example, 00:0F:89:AB:CD:EF.
Interface The port where this address was learned: that is, this fi
eld displays the port
through which the MAC address can be reached.
Status The status of this entry. The possible values are:
• St
atic: The entry was added when a static MAC filter was defined.
• Le
arned: The entry was learned by observing the source MAC
addresses of incoming traffic, and is currently in use.
• Ma
nagement: The system MAC address, which is identified with
interface c1.
Dynamic Address Configuration
Use the Dynamic Addresses page to set the amount of time to keep a learned MAC address
entry in the forwarding database. The forwarding database contains static entries, which are
never aged out, and dynamically learned entries, which are removed if they are not updated
within a given time.
To access the Configuration page, click Switchin
g  Address Table  Advanced  Dynamic
Addresses.

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