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.

• 110 V AC
• 220 V AC

• 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

• 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