Datasheet
Table Of Contents
- Data Sheet
- Cisco Catalyst 4948-10GE Switch

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Layer 3 Features
• Hardware-based IP Cisco Express Forwarding routing at 102 mpps
• IP routing protocols: EIGRP, OSPF, RIP, and RIP2
• BGP4 and Multicast Border Gateway Protocol (MBGP)
• Nonstop Forwarding awareness
• Hot Standby Router Protocol (HSRP)
• Software routing of Internetwork Packet Exchange (IPX) and AppleTalk
• IS-IS routing protocol
• IGMP v1, v2, and v3
• IGMP filtering on access and trunk ports
• IP Multicast routing protocols: PIM, SSM, and Distance Vector Multicast Routing Protocol (DVMRP)
• Pragmatic General Multicast (PGM)
• Cisco Group Multicast Protocol server
• Full Internet Control Message Protocol (ICMP) support
• ICMP Router Discovery Protocol
• Policy-based routing (PBR)
• Virtual Route Forwarding lite (VRF-lite)
• IPv6 (software switched)
• OSPF fast convergence
• EIGRP stub
• Virtual Router Redundancy Protocol (VRRP)
Sophisticated 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
Predictable Performance
• 136-Gbps switching fabric
• Layer 2 hardware forwarding at 102 mpps
• Layer 3 hardware-based IP Cisco Express Forwarding routing at 102 mpps
• Layer 4 TCP/User Datagram Protocol (UDP) hardware-based filtering at 102 mpps
• No performance penalty with advanced Layer 3 and Layer 4 services enabled
• Software-based learning at a sustained rate of 3000 hosts per second
• Support for 55,000 unicast and 16000 multicast MAC addresses