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Feature and Description
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Cisco Catalyst 4948
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Cisco Catalyst 4948 10 Gigabit Ethernet
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Cisco Catalyst 4928 10 Gigabit Ethernet
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Cisco Catalyst 4900M
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Cisco Catalyst 4948E and 4948E-F
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Environmental
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Height
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1RU
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1RU
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1RU
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2RU
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1RU
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Dimension (H x W x D) Inches (cm)
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1.71(4.3) x 17.3(43.9) x 16.1(40.9)
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1.71(4.3) x 17.3(43.9) x 16.1(40.9)
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1.71(4.3) x 17.3(43.9) x 16.1(40.9)
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3.5 (8.9) x 17.2 (43.7) x 17.9 (45.5)
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1.75(4.4) x 17.5(44.4) x 19.4(49.3)
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Power Redundancy
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1+1 AC or DC
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1+1 AC or DC
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1+1 AC or DC
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1+1 AC or DC
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1+1 AC or DC
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Unit Weight Pounds (Kilograms)
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16.5 (7.48)
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16.5 (7.48)
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16.5 (7.48)
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34.0 lb (15.4)
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19 lbs (8.62)
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Hot Swappable Fan
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Yes
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Yes
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Yes
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Yes
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Yes
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Avg/Max Power Consumption
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176/300 Watts
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212/300 Watts
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300 Watts
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300/446 Watts
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230/275 Watts
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Airflow
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Side to Back
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Side to back
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Side to back
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Side to Back
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Front to Back (4948E)
Back to Front (4948E-F)
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Rack Mounting Options
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Front and Rear Mount
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Front and Rear Mount
High Perf Rear Mount
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Front and Rear Mount
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Four Post Rack Side rail Mount
High Performance Mount
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Front and Rear Mount
High Perf Rear Mount
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Uplink Optic Types
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4 SFP optics
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Two X2 (10 Gigabit Ethernet) optics
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Two X2 (10 Gigabit Ethernet) optics
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Eight X2 (10 Gigabit Ethernet) optics
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SFP/SFP+
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Cisco TwinGig Converter Module Support
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No
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No
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Yes
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Yes (WS-X4908-10GE only)
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No
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Cisco OneX Converter Module Support (X2 to SFP+)
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No
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No
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Yes
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Yes
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No
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Optics
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LH, SX, ZX, CWDM
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LR, CX4, LX4, SR, ER, LRM, ZR, DWDM
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LR, CX4, LX4, SR, ER, LRM
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X2: LR, CX4, LX4, SR, ER, LRM, ZR, DWDM
SFP+: SR
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CWDM, DWDM, SR, LR, LRM, CX4
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Modular Half-Card Slots
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0
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0
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0
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2
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0
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Ports
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Maximum 10/100/1000 Ports
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48
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48
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0
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40
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48
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Maximum Gigabit Ethernet (Fiber) Ports
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4
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0
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28
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32 (Cisco TwinGig Converter Module)
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4
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Maximum 10 Gigabit Ethernet (10GBase-T) Ports
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0
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0
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0
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16
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0
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Maximum 10 Gigabit Ethernet (fiber) Ports
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0
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2 (X2)
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2 (X2)1
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24 (X2) 1
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4 (SFP+)
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Performance/Scalability
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Switching Capacity
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96 Gbps
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136 Gbps
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96 Gbps
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320 Gbps
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176 Gbps
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Throughput
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72 mpps
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102 mpps
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72 Mpps
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250 mpps for IPv4
125 mpps for IPv6
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131 mpps for IPv4
110 mpps for IPv6
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Routes Supported
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32K
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32K
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32K
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256K
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57K
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MAC Addresses
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32K
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55K
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55K
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55K
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55K
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Per VLAN Spanning Tree (PVST) Protocol and VLAN IDs
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4094
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4094
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4094
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4094
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4094
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Switched Virtual Interfaces (SVIs)
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2000
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2000
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2000
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4094
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4094
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Active VLANs
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4094
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4094
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2048
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4094
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4094
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Multicast Routes
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28K
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28K
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28K
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28K
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28K
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Security and Quality-of-Service (QoS) Hardware Entries
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32K
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32K
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32K
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128K
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32K
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Switched Port Analyzer (SPAN)
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2 ingress and 4 egress
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2 ingress and 4 egress
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2 ingress and 4 egress
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8 ingress and 8 egress
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8 ingress and 8 egress
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Shared Buffer
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16 MB
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16 MB
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16 MB
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17.5 MB
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17.5 MB
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CPU
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266 MHz
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666 MHz
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666 MHz
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1.3 GHz
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1 GHz
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Synchronous Dynamic RAM (SDRAM)
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256 MB
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256 MB
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256 MB
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512 MB
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1 GB
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IPv6 Support
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Software Switched
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Software Switched
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Software Switched
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Hardware Switched
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Hardware Switched
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USB Port
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No
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No
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No
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Yes
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No
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Compact Flash Memory Support
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No
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No
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No
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Yes
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No
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System Reset Button
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No
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No
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Yes
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Yes
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Yes
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PoE: Max. 802.3af Class 3 Devices (15.4W)
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0
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0
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0
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0
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0
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PoE: Max. 802.3af Class 2 Devices (7.3W)
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0
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0
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0
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0
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0
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