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24- and 48-port Stackable Gigabit PoE L2+ Managed Switches GSM7228PS, GSM7252PS
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TECHNICAL SPECIFICATIONS
PHYSICAL INTERFACES
Front
• 24 auto-sensing RJ45 10/100/1000 ports
• 4 shared SFP ports for Gigabit fi ber uplinks (shared with the last 4 RJ45 ports)
• 2 independent 10 Gigabit SFP+ ports
• USB port (confi g/fi rmware fi les storage)
Rear
• 2 additional 10 Gigabit I/O module bays (for 10 Gigabit uplinks or hardware stacking)
• Serial RS-232 port for console
Total
• 24 x Gigabit ports + 4 x 10 Gigabit ports
• Same hardware platform as GSM7328S-200
Front
• 48 auto-sensing RJ45 10/100/1000 ports
• 4 shared SFP ports for Gigabit fi ber uplinks (shared with the last 4 RJ45 ports)
• 2 independent 10 Gigabit SFP+ ports
• USB port (confi g/fi rmware fi les storage)
Rear
• 2 additional 10 Gigabit I/O module bays (for 10 Gigabit uplinks or hardware stacking)
• Serial RS-232 port for console
Total
• 48 x Gigabit ports + 4 x 10 Gigabit ports
• Same hardware platform as GSM7352S-200
POE
• All 24 Gigabit RJ45 ports are PoE
• IEEE
®
802.3af (up to 15.4 Watts/port)
• All 48 Gigabit RJ45 ports are PoE
• IEEE 802.3af (up to 15.4 Watts/port)
POE+
• The fi rst 8 Gigabit RJ45 ports are PoE+
• IEEE 802.3at (up to 30 Watts/port)
• The fi rst 8 Gigabit RJ45 ports are PoE+
• IEEE 802.3at (up to 30 Watts/port)
TOTAL POE BUDGET
• 384 Watts
• 384 Watts
PROCESSOR / MEMORY
• Processor: MPC8633 @ 666 MHz
• System memory: 256 MB (RAM)
• Packet buffer memory: 0.75 MB per switch
• Code storage (fl ash): 32 MB
• Processor: MPC8633 @ 666 MHz
• System memory: 256 MB (RAM)
• Packet buffer memory: 1.5 MB per switch
• Code storage (fl ash): 32 MB
HARDWARE STACKING
• GSM7228PS/GSM7252PS
• GSM7328S/GSM7352S
• GSM7328FS
• Stack height: 8 switches/384 ports
• GSM7228PS/GSM7252PS
• GSM7328S/GSM7352S
• GSM7328FS
• Stack height: 8 switches/384 ports
PERFORMANCE SUMMARY
• Switching fabric: 144 Gbps
• Throughput: 107.1 Mpps
• Forwarding mode: Store-and-forward
• Latency (64-byte frames, 10 to 100 Mbps): <35.2μs
• Latency (64-byte frames, 1 Gbps): <4.1μs
• Latency (64-byte frames, 10 Gbps): <2.0μs
• Addressing: 48-bit MAC address
• Address database size: 8,000 MAC addresses
• Number of VLANs: 1,024 (IEEE 802.1Q)
• Number of multicast groups fi ltered: 1,024
• Number of trunks: 64 trunks, 8-port per trunk
• Number of hardware queues for QoS: 8
• Number of static routes: 224
• Number of IP interfaces: 128
• Jumbo frame support: up to 9K packet size
• Acoustic noise (ANSI-S10.12): 44 dB @ 25°C ambient temperature
• Heat dissipation: 260.49 Btu/hr
• Mean time between failures (MTBF): 211,069 hours (~24.1 years) @ 25 °C and
98,705 hours (~11.3 years) @ 55 °C ambient temperature
• Switching fabric: 192 Gbps
• Throughput: 285.7 Mpps
• Forwarding mode: Store-and-forward
• Latency (64-byte frames, 10 to 100 Mbps): <35.5μs
• Latency (64-byte frames, 1 Gbps): <4.1μs
• Latency (64-byte frames, 10 Gbps): <2.0μs
• Addressing: 48-bit MAC address
• Address database size: 8,000 MAC addresses
• Number of VLANs: 1,024 (IEEE 802.1Q)
• Number of multicast groups fi ltered: 1,024
• Number of trunks: 64 trunks, 8-port per trunk
• Number of hardware queues for QoS: 8
• Number of static routes: 224
• Number of IP interfaces: 128
• Jumbo frame support: up to 9K packet size
• Acoustic noise (ANSI-S10.12): 44 dB @ 25°C ambient temperature
• Heat dissipation: 389.20 Btu/hr
• Mean time between failures (MTBF): 169,522 hours (~19.4 years) @ 25 °C and
83,550 hours (~9.5 years) @ 55 °C ambient temperature
L3 SERVICES – ROUTING
• L2+ static routing (Subnets, VLANs)
• 224 IP routes (L3-capable hardware)
• 128 IP interfaces (L3-capable hardware)
• IP Source Guard
• L2+ static routing (Subnets, VLANs)
• 224 IP routes (L3-capable hardware)
• 128 IP interfaces (L3-capable hardware)
• IP Source Guard
L3 SERVICES - DHCP
• DHCP server (1,024 clients)
• DHCP L2 relay, DHCP snooping
• DHCP server (1,024 clients)
• DHCP L2 relay, DHCP snooping
GSM7228PS GSM7252PS