NETGEAR GS752TP User Manual

Configure Quality of Service
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GS752TP, GS728TP, and GS728TPP Gigabit Smart Switches
 To view DiffServ general status group information:
Select QoS
 DiffServ  Advanced  Diffserv Configuration.
The following screen displays:
The following information is displayed:
• The Admin Mode for DiffServ is always Enabled.
• The DiffServ Used Resources field displays the number of entries used by DiffServ.
DSCP Violate Action Mapping
When a policer is assigned to a class map (flows), use the DSCP Violate Action Mapping
screen to specify the action to take when the amount of traffic in the flows exceeds the
QoS-specified limits. The portion of the traffic that causes the flow to exceed its QoS limit is
referred to as violate action packets.
When this action occurs, the switch remaps the original DSCP value of the violate action IP
packets with a new value based on the DSCP Violate Action Mapping table.
The switch uses
the new values to assign resources and the egress queues to these packets. The switch also
physically replaces the original DSCP value in the violate action packets with the new DSCP
value.
This feature changes (remarks) the DSCP tags for incoming traffic switched between trusted
QoS domains.
For example, assume that there are three levels of service—A, B, and C— and the DSCP
incoming values used to mark these levels are 10, 20, and 30 respectively. If this traffic is
forwarded to another service provider that has the same three levels of service, but uses

NETGEAR GS752TP Specifications

General

Switch type	Managed
Switch layer	L3
Quality of Service (QoS) support	Yes
Number of multicast groups filtered	1024
Fiber optic connector	SFP
SFP module slots quantity	4
Basic switching RJ-45 Ethernet ports type	Gigabit Ethernet (10/100/1000)
Basic switching RJ-45 Ethernet ports quantity	48
10G support	-
Number of VLANs	256
Networking standards	IEEE 802.1D, IEEE 802.1s, IEEE 802.1w, IEEE 802.1x, IEEE 802.3af, IEEE 802.3at, IEEE 802.3x
Copper ethernet cabling technology	1000BASE-T, 100BASE-T, 10BASE-T
DHCP features	DHCP client
MAC address table	8000 entries
Packet buffer memory	8 MB
Number of static routes	32
Supported network protocols	IPv4, IPv6, TFTP, SNTP, TACACS+
Power consumption (typical)	384 W
Safety	CE, CSA, UL
Product color	Gray
Electromagnetic compatibility	CE, FCC, Class A EN 55022, Class A C-Tick, EN 50082-1, EN 55024, CCC
Mean time between failures (MTBF)	220447 h
Heat dissipation	1750.70 BTU/h
Operating altitude	0 - 3000 m
Storage temperature (T-T)	-20 - 70 °C
Operating temperature (T-T)	0 - 55 °C
Storage relative humidity (H-H)	0 - 95 %
Operating relative humidity (H-H)	10 - 90 %
Total Power over Ethernet (PoE) budget	15.4 W
Power over Ethernet plus (PoE+) ports quantity	8
Cables included	AC

Weight and Dimensions

Depth	316 mm
Width	440 mm
Height	43 mm
Weight	5100 g