NETGEAR GS308T User Manual

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4. Configure Quality of Service
In a switch, each physical port consists of one or more queues for transmitting packets on the
attached network. Multiple queues per port are often provided to give preference to certain
packets over others based on user-defined criteria. When a packet is queued for transmission in
a port, the rate at which it is serviced depends on how the queue is configured and possibly the
amount of traffic present in the other queues of the port. If a delay is necessary, packets are held
in the queue until the scheduler authorizes the queue for transmission. As queues become full,
packets can no longer be held for transmission and are dropped by the switch.
Quality of Service (QoS) is a means of providing consistent, predictable data delivery by
distinguishing packets with strict timing requirements from those that are more tolerant of delay.
Packets with strict timing requirements are given special treatment in a QoS-capable network.
With this in mind, all elements of the network must be QoS capable. The presence of at least one
node that is not QoS capable creates a deficiency in the network path, and the performance of
the entire packet flow is compromised.
This chapter contains the following sections.
• Manage Class of Service
• Manage Differentiated Services

NETGEAR GS308T Specifications

General

Switch type	Managed
Switch layer	L2
Quality of Service (QoS) support	Yes
Master (outer) case width	214 mm
Master (outer) case height	312 mm
Master (outer) case length	474 mm
Master (outer) case weight	6110 g
Harmonized System (HS) code	85176990
Quantity per master (outer) case	6 pc(s)
Package type	Box
Package depth	270 mm
Package width	226 mm
Package height	64 mm
Package weight	750 g
Cables included	AC
Power connector	DC-in jack
Installed SFP modules quantity	0
Basic switching RJ-45 Ethernet ports type	Gigabit Ethernet (10/100/1000)
Basic switching RJ-45 Ethernet ports quantity	8
Stackable	No
Product color	Black
LED indicators	Activity, Link, Power
Country of origin	China
10G support	-
Multicast protocols	IGMP
Input current	1 A
DC input voltage	12 V
MAC address table	- entries