NETGEAR GSM7248R manual Arp, Mtbf

Managed Layer 2 Switches GSM7224R and GSM7248R Hardware Installation Guide

Table A-2. Technical Specifications (continued)

Feature	GSM7224R	GSM7248R
Layer 3 services	• Static routing	• Static routing
	• ACL	• ACL
	• DiffServ QOS	• DiffServ QOS
	• DHCP, BOOTP Relay	• DHCP, BOOTP Relay
	• DHCP server	• DHCP server
	• UDP Relay	• UDP Relay
	• ARP	• ARP
	• IGMP querier	• IGMP querier
Interface (Auto	• 24 RJ-45 connectors for 10BASE-T,	• 48 RJ-45 connectors for 10BASE-T,
Uplink on all RJ-	100BASE-TX, and 1000BASE-T	100BASE-TX, and 1000BASE-T
45 ports)	• Four slots are gigabit interface converters	• Four slots are gigabit interface converters
	(SFP) for SFP modules	(SFP) for SFP modules
	• RS-232 console port	• RS-232 console port
Bandwidth	48 Gbps	96 Gbps
Address	8K MAC addresses per system	8K MAC addresses per system
database size
10/100/1000	max support 0.75MB buffer memory.	Max support 1.5MB buffer memory
buffer memory
Mean time	239,032 hours( ~27 years)	162,303 hours( ~19 years)
between failure
(MTBF)
Performance	• Forwarding modes: Store-and-forward	• Forwarding modes: Store-and-forward
	• Network latency: Less than 80	• Network latency: Less than 80
	microseconds for 64-byte frames in store-	microseconds for 64-byte frames in store-
	and-forward mode for 10 Mbps to 100	and-forward mode for 10 Mbps to 100
	Mbps transmission	Mbps transmission
	• Addressing: 48-bit MAC address	• Addressing: 48-bit MAC address
	• Acoustic noise: (ANSI-S10.12): <38.6 dB	• Acoustic noise: (ANSI-S10.12): 48.8 dB
	• Heat dissipation: 131.439 Btu/hr	• Heat dissipation: 244.101 Btu/hr
Power	38.5W maximum 100-240 VAC, 50–60 Hz	71.5W maximum 100-240 VAC, 50–60 Hz
consumption	universal input	universal input
Dimensions	17.3 x 8.1 x 1.6 inch (W x D x H)	17.3 x 8.1 x 1.6 inch (W x D x H)
(W x D x H)	(440 x 205 x 43 mm)	(440 x 205 x 43 mm)

A-4 Default Settings and Technical Specifications

v1.0, November 2007