NETGEAR GS716T User Manual

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GS716T and GS724T Gigabit Smart Switches
An MST Region comprises of one or more MSTP Bridges with the same MST Configuration
Identifier, using the same MSTIs, and which have no Bridges attached that cannot receive
and transmit MSTP BPDUs. The MST Configuration Identifier has the following components:
1. Configuration Identifier Format Selector
2. Configuration Name
3. Configuration Revision Level
4. Configuration Digest: 16-byte signature of type HMAC-MD5 created from the MST
Configuration Table (a VLAN ID to MSTID mapping)
As there are Multiple Instances of Spanning Tree, there is a MSTP state maintained on a
per-port, per-instance basis (or on a per port per VLAN basis: as any VLAN can be in one and
only one MSTI or CIST). For example, port A can be forwarding for instance 1 while
discarding for instance 2. The port states have changed since IEEE 802.1D specification.
To support multiple spanning trees, a MSTP bridge has to be configured with an
unambiguous assignment of VLAN IDs (VIDs) to spanning trees. This is achieved by:
1. Ensuring that the allocation of VIDs to FIDs is unambiguous.
2. Ensuring that each FID supported by the Bridge is allocated to exactly one Spanning Tree
Instance.
The combination of VID to FID and then FID to MSTI allocation defines a mapping of VIDs to
spanning tree instances, represented by the MST Configuration Table.
With this allocation we ensure that every VLAN is assigned to one and only one MSTI. The
CIST is also an instance of spanning tree with a MSTID of 0.
An instance may occur that has no VIDs allocated to it, but every VLAN must be allocated to
one of the other instances of spanning tree.
The portion of the active topology of the network that connects any two bridges in the same
MST Region traverses only MST bridges and LANs in that region, and never Bridges of any
kind outside the Region, in other words connectivity within the region is independent of
external connectivity.

NETGEAR GS716T Specifications

General

Switch type	Managed
Switch layer	L3
Quality of Service (QoS) support	Yes
Stackable	-
Certification	CE, FCC, VCCI, EN, C-Tick, CCC, CSA, UL/cUL, IEC
Product color	Blue
LED indicators	Activity, Link, Power
SFP module slots quantity	2
Basic switching RJ-45 Ethernet ports type	Gigabit Ethernet (10/100/1000)
Basic switching RJ-45 Ethernet ports quantity	16
Number of VLANs	256
Networking standards	IEEE 802.1D, IEEE 802.1as, IEEE 802.1s, IEEE 802.1v, IEEE 802.3, IEEE 802.3ab, IEEE 802.3ad, IEEE 802.3i, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 100BASE-T, 1000BASE-T
Noise level	0 dB
Mean time between failures (MTBF)	567680 h
DHCP features	DHCP client
Security algorithms	802.1x RADIUS, HTTPS, SSL/TLS
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (typical)	14.4 W
MAC address table	16000 entries
Number of static routes	32
Operating altitude	0 - 3000 m
Storage temperature (T-T)	-20 - 70 °C
Operating temperature (T-T)	0 - 50 °C
Storage relative humidity (H-H)	0 - 95 %
Operating relative humidity (H-H)	0 - 90 %
Cables included	AC
Supported network protocols	IP

Weight and Dimensions

Depth	204 mm
Width	440 mm
Height	43 mm
Weight	2570 g