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The Cisco Catalyst 4948-10GE Switch is a wire-speed, low-latency, Layer 2-4, 1-rack-unit (1-RU), fixed-configuration switch for rack-optimized server switching. Based on the proven Cisco Catalyst 4500 Series hardware and software architecture, the Cisco Catalyst 4948-10GE offers exceptional performance, bandwidth, and reliability for low-density, multilayer aggregation of high-performance servers and workstations.
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| Interfaces/Ports |
48 x 10/100/1000Base-T LAN |
| Interfaces/Ports Details |
48 x RJ-45 10/100/1000Base-T LAN
1 x RJ-45 Console Management
1 x RJ-45 10/100Base-TX Management |
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| Connectivity Media |
Twisted Pair 10/100/1000Base-T |
| Data Transfer Rate |
10Mbps Ethernet
100Mbps Fast Ethernet
1Gbps Gigabit Ethernet |
| Performance |
136Gbps Switching Capacity
102Mpps Switching Performance |
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| Expansion Slots |
2 x Expansion Slot(s) |
| Slot Details |
2 x X2 Free |
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| Supported Layers |
2 Switching
3 Routing
4 |
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| Management |
Cisco Network Assistant
CiscoWorks
Cisco SmartPort macros
CiscoView
SNMPv1, v2, and v3 instrumentation, delivering comprehensive in-band management
CLI-based management console to provide detailed out-of-band management
Remote Monitoring (RMON) software agent
Per VLAN Spanning Tree (PVST) and VLAN IDs: 4096
QoS and Traffic Management:
Per-port QoS configuration
Support for four queues per port
Strict priority queuing
IP differentiated services code point (DSCP)
Classification and marking based on IP type of service (ToS) or DSCP
Classification and marking based on full Layer 3 and Layer 4 headers
Input and output policing based on Layer 3 and Layer 4 headers
Support for 512 policers on ingress and 512 policers on egress
Shaping and sharing output queue management
DBL-congestion-avoidance feature
No performance penalty for granular QoS functions
Per-port, per-vlan QoS
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| Processor |
1 x 666MHz |
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| Memory |
256MB SDRAM
64MB Flash Memory
512KB NVRAM
256KB ROM |
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| Power Supply |
Internal |
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| Form Factor |
19" Rack-mountable |
| Dimensions |
1.75" Height x 17.5" Width x 16" Depth |
| Weight |
17.2 lb - With Two Power Supplies |
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| Additional Information |
Power-Supply Redundancy for Nonstop Operation
Robust Network Security
Switch heat dissipation: 1023 BTU/hour
Switched Virtual Interfaces (SVIs): 2k
Storm control
Hardware-based IP Cisco Express Forwarding routing at 102 mpps
Policy-based routing (PBR)
Bandwidth aggregation up to 40 Gbps using Cisco Gigabit Ethernet EtherChannel technology
Support for 55,000 unicast and 16000 multicast MAC addresses
Security Features:
Hardware-based ACLs, router ACLs (RACLs), VLAN ACLs
TACACS+ and RADIUS
802.1x accounting
802.1x authentication failure
802.1x Private VLAN assignment Port security
Sticky port security
SSHv1 and SSHv2
VLAN Management Policy Server (VMPS) client
Unicast MAC filtering
Unicast port flood blocking
Dynamic Address Resolution Protocol (ARP) inspection
IP source guard
Community Private VLANs
Trunk Port Security
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