NETGEAR XS708T User Manual

Configure System Information
107
XS708T, XS712Tv2, and XS716T Smart Managed Pro Switch User Manual
The following table describes the DHCP snooping statistics.
Dynamic ARP Inspection
Dynamic ARP Inspection (DAI) is a security feature that rejects invalid and malicious ARP
packets. DAI prevents a class of man-in-the-middle attacks where an unfriendly station
intercepts traffic for other stations by poisoning the ARP caches of its unsuspecting
neighbors. The malicious attacker sends ARP requests or responses mapping another
station’s IP address to its own MAC address.
When DAI is enabled, the switch drops ARP packets whose sender MAC address and
sender IP address do not match an entry in the DHCP snooping bindings database. You can
optionally configure additional ARP packet validation.
When DAI is enabled on a VLAN, DAI is enabled on the interfaces (physical ports or LAGs)
that are members of that VLAN. Individual interfaces are configured as trusted or untrusted.
The trust configuration for DAI is independent of the trust configuration for DHCP snooping.
Configure DAI Globally
If you configure the source MAC address validation option, DAI verifies that the sender MAC
address in an ARP packet equals the source MAC address in the Ethernet header.
The Ethernet header includes a configurable option to verify that the target MAC address in
the ARP packet equals the destination MAC address. This check applies only to ARP
responses, since the target MAC address is unspecified in ARP requests. You can also
enable IP address checking. When this option is enabled, DAI drops ARP packets with an
invalid IP address. The following IP addresses are considered invalid:
• 0.0.0.0
• 255.255.255.255
• All IP multicast addresses
• All class E addresses (240.0.0.0/4)
• Loopback addresses (in the range 127.0.0.0/8)
Table 27. DHCP Snooping Statistics information
Field Description
Interface The interface associated with the rest of the data in the row.
MAC Verify Failures The number of DHCP messages that were dropped because the source MAC address
and client hardware address did not match. MAC address verification is performed only if
it is globally enabled.
Client Ifc Mismatch The number of packets that were dropped by DHCP snooping because the interface and
VLAN on which the packet was received do not match the client’s interface and VLAN
information stored in the binding database.
DHCP Server Msgs
Received
The number of DHCP server messages ((DHCPOFFER, DHCPACK, DHCPNAK,
DHCPRELEASEQUERY) that were dropped on an untrusted port.

NETGEAR XS708T Specifications

General

Switch type	Managed
Switch layer	L2+/L3
Quality of Service (QoS) support	Yes
USB 2.0 ports quantity	1
SFP+ module slots quantity	2
Installed SFP modules quantity	-
Basic switching RJ-45 Ethernet ports type	10G Ethernet (100/1000/10000)
Basic switching RJ-45 Ethernet ports quantity	8
Certification	CE, FCC Cl. A, VCCI Cl. A, Cl. A EN 55022 (CISPR 22), Cl. A C-Tick, EN 55024, CCC
Product color	Black
LED indicators	Activity, Link, Power
Number of fans	1 fan(s)
Number of VLANs	256
Networking standards	IEEE 802.1D, IEEE 802.1Q, IEEE 802.1ab, IEEE 802.1p, IEEE 802.1s, IEEE 802.1w, IEEE 802.1x, IEEE 802.3, IEEE 802.3ad, IEEE 802.3ae, IEEE 802.3an, IEEE 802.3az, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z
Virtual LAN features	Private VLAN, Protocol-based VLAN
Cable types supported	Cat5e, Cat6, Cat6a, Cat7
Copper ethernet cabling technology	10GBASE-T
Noise level	29.1 dB
Flash memory	256 MB
Internal memory	512 MB
Processor frequency	600 MHz
Mean time between failures (MTBF)	276832 h
Jumbo frames	9000
Latency (10 Gbps)	3.012 µs
MAC address table	16000 entries
Packet buffer memory	2 MB
Number of static routes	32
DHCP features	DHCP server, DHCP client
Security algorithms	802.1x RADIUS
Access Control List (ACL) rules	100
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (max)	96 W
Operating altitude	0 - 3000 m
Operating temperature (T-T)	0 - 50 °C
Operating relative humidity (H-H)	0 - 90 %
Cables included	AC

Weight and Dimensions

Depth	204 mm
Width	440 mm
Height	43 mm
Weight	2980 g