NETGEAR GS748T User Manual

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GS748T Smart Switch
IpReasmReqds The number of IP fragments received which needed to be reassembled
at this entity.
IpReasmOKs The number of IP datagrams successfully re-assembled.
IpReasmFails The number of failures detected by the IP re-assembly algorithm (for
whatever reason: timed out, errors, etc.). Note that this is not
necessarily a count of discarded IP fragments since some algorithms
can lose track of the number of fragments by combining them as they
are received.
IpFragOKs The number of IP datagrams that have been successfully fragmented
at this entity.
IpFragFails The number of IP datagrams that have been discarded because they
needed to be fragmented at this entity but could not be, e.g., because
their Don't Fragment flag was set.
IpFragCreates The number of IP datagram fragments that have been generated as a
result of fragmentation at this entity.
IpRoutingDiscards The number of routing entries which were chosen to be discarded even
though they are valid. One possible reason for discarding such an entry
could be to free-up buffer space for other routing entries.
IcmpInMsgs The total number of ICMP messages which the entity received. Note
that this counter includes all those counted by icmpInErrors.
IcmpInErrors The number of ICMP messages which the entity received but
determined as having ICMP-specific errors (bad ICMP checksums, bad
length, etc.).
IcmpInDestUnreachs The number of ICMP Destination Unreachable messages received.
IcmpInTimeExcds The number of ICMP Time Exceeded messages received.
IcmpInParmProbs The number of ICMP Parameter Problem messages received.
IcmpInSrcQuenchs The number of ICMP Source Quench messages received.
IcmpInRedirects The number of ICMP Redirect messages received.
IcmpInEchos The number of ICMP Echo (request) messages received.
IcmpInEchoReps The number of ICMP Echo Reply messages received.
IcmpInTimestamps The number of ICMP Timestamp (request) messages received.
IcmpInTimestampReps The number of ICMP Timestamp Reply messages received.
IcmpInAddrMasks The number of ICMP Address Mask Request messages received.
IcmpInAddrMaskReps The number of ICMP Address Mask Reply messages received.
IcmpOutMsgs The total number of ICMP messages which this entity attempted to
send. Note that this counter includes all those counted by
icmpOutErrors.
Field Description

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