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Managed Layer 2 Switches GSM7224 and GSM7248 Hardware Installation Guide
A-4 Default Settings and Technical Specifications
v1.0, July 2009
Layer 3 services • Static routing
•ACL
• DiffServ QOS
• DHCP, BOOTP Relay
• DHCP server
• UDP Relay
•ARP
• IGMP querier
• Static routing
•ACL
• DiffServ QOS
• DHCP, BOOTP Relay
• DHCP server
• UDP Relay
•ARP
• IGMP querier
Interface (Auto
Uplink on all RJ-
45 ports)
• 24 RJ-45 connectors for 10BASE-T,
100BASE-TX, and 1000BASE-T
• Four slots are gigabit interface converters
(SFP) for SFP modules
• RS-232 console port
• 48 RJ-45 connectors for 10BASE-T,
100BASE-TX, and 1000BASE-T
• Four slots are gigabit interface converters
(SFP) for SFP modules
• RS-232 console port
Bandwidth 48 Gbps 96 Gbps
Address
database size
8K MAC addresses per system 8K MAC addresses per system
10/100/1000
buffer memory
max support 0.75MB buffer memory. Max support 1.5MB buffer memory
Mean time
between failure
(MTBF)
239,032 hours( ~27 years) 162,303 hours( ~19 years)
Performance • Forwarding modes: Store-and-forward
• Network latency: Less than 80
microseconds for 64-byte frames in store-
and-forward mode for 10 Mbps to 100
Mbps transmission
• Addressing: 48-bit MAC address
• Acoustic noise: (ANSI-S10.12): <38.6 dB
• Heat dissipation: 131.439 Btu/hr
• Forwarding modes: Store-and-forward
• Network latency: Less than 80
microseconds for 64-byte frames in store-
and-forward mode for 10 Mbps to 100
Mbps transmission
• Addressing: 48-bit MAC address
• Acoustic noise: (ANSI-S10.12): 48.8 dB
• Heat dissipation: 244.101 Btu/hr
Power
consumption
38.5W maximum 100-240 VAC, 50–60 Hz
universal input
71.5W maximum 100-240 VAC, 50–60 Hz
universal input
Dimensions
(W x D x H)
17.3 x 8.1 x 1.6 inch (W x D x H)
(440 x 205 x 43 mm)
17.3 x 8.1 x 1.6 inch (W x D x H)
(440 x 205 x 43 mm)
Table A-2. Technical Specifications (continued)
Feature GSM7224 GSM7248