NETGEAR GS748T User Manual

109
GS748T Smart Switch
Multicast
Multicast IP traffic is traffic that is destined to a host group. Host groups are identified by
class D IP addresses, which range from 224.0.0.0 to 239.255.255.255.
From the Multicast link, you can access th
e following pages:
• Auto-Video Configuration on p
age 109
• IGMP Snooping on p
age 110
• IGMP Snooping Querier on p
age 121
Auto-Video Configuration
The Auto-Video Configuration feature is intended to support surveillance cameras and other
applications running multicast traffic. Use this menu to configure the Auto-Video parameters.
When the Auto-Video feature is being enabled, it configures the IGMP Snooping and IGMP
Snooping Querier to operate in the Auto-Video VLAN by default. Auto-Video displays the
auto-configured IGMP snooping VLAN.
To display the Auto-Video Configuration page, click Switching
 Multicast Auto-Video.
To enable Auto-Video Configuration:
1. Aut
o-Video Status. Select the Auto-Video administrative mode for the switch. This
selector lists the two options for administrative mode: enable and disable.
The Auto-Video VLAN field identifies the VLAN ID used for multicast video traffic.
2. Click Canc
el 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 occur immediately.

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