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Manufacturer CISCO Manufacturer Part Number WS-C4948 SKU GROUP-212338 Ethernet Technology Gigabit Ethernet Flash Memory 64 MB Marketing Information Cisco Catalyst 4948 is a wire-speed, low latency, 48-port 10/100/1000 Ethernet, Layer 2-4, 1-rack-unit (RU), fixed-configuration switch for rack-optimized server-switching applications. The Cisco Catalyst 4948 Switch offers exceptional performance and reliability for Layer 2 and Layer 3 server switching deployments for enterprise and small and medium-sized (SMB) businesses. The Cisco Catalyst 4948 delivers wire-speed throughput with low latency for data-intensive applications using a 96 Gbps switching fabric with a 72 Mpps forwarding rate in hardware for Layer 2-4 traffic. Description Cisco Catalyst 4948 is a wire-speed, low latency, 48-port 10/100/1000 Ethernet, Layer 2-4, 1-rack-unit (RU), fixed-configuration switch for rack-optimized server-switching applications. The Cisco Catalyst 4948 Switch offers exceptional performance and reliability for Layer 2 and Layer 3 server switching deployments for enterprise and small and medium-sized (SMB) businesses. Series Cisco Catalyst 4900 Height 1.7" Width 17.3" Depth 16.1" Brand Cisco Expansion Slot Type SFP Form Factor Rack-mountable Product Name CISCO WS-C4948 Input Voltage - 110 V AC
- 220 V AC
Layer Supported 4 Limited Warranty 1 Year Manageable Yes Management - CiscoWorks
- Embedded CiscoView
- Cisco Network Assistant
- Cisco SwitchProbe analyzer
- Remote Monitoring (RMON) software agent
- SNMPv1, v2, and v3 instrumentation, delivering comprehensive in-band management
- Command-line interface (CLI)-based management console to provide detailed out-of-band management
- Support for 2048 active VLANs and 4096 VLAN IDs per switch
- ACL or quality-of-service (QoS) entries: 32,000
- VLAN Trunking Protocol (VTP) and VTP domains
- Community private VLANs (PVLANs)
- Remote in-band management is available with SNMP, Telnet client, BOOTP, and Trivial File Transfer Protocol (TFTP)
- QoS and Traffic Management:
- Per-port QoS configuration
- Per-port per VLAN QoS
- Support for four queues per port in hardware
- Strict priority queuing
- IP differentiated services code point (DSCP) and IP Precedence
- Classification and marking based on IP type of service (ToS) or DSCP
- Classification and marking based on full Layer 3 and 4 headers (IP only)
- Input and output policing based on Layer 3 and 4 headers (IP only)
- Support for 512 policers on ingress and 512 policers on egress configured as aggregate or individual
- Shaping and sharing output queue management
- Dynamic Buffer Limiting (DBL): Advanced congestion avoidance
- No performance penalty for granular QoS functions
- MIBs:
- RIP SNMP MIB
- RMON-MIB
- BGP4-MIB
- BRIDGE-MIB
Media Type Twisted Pair Memory Technology SDRAM Alt Part No WSC4948 Network Technology 10/100/1000Base-T Product Type Layer 3 Switch Number of Network (RJ-45) Ports 48 Number of SFP Slots 4 Number of Total Expansion Slots 4 Additional Information - Unicast and multicast routing entries: 32,000
- Packet buffering: Dynamic, 16 MB shared memory
- MAC addresses: 32,768
- Policers: 512 ingress and 512 egress
- Hardware-based storm control (formally known as broadcast and multicast suppression)
- Cisco EtherChannel technology, Cisco Fast EtherChannel technology, and Cisco Gigabit EtherChannel technology support
- Switch heat dissipation: 1023 BTU/hour
- Q-in-Q in hardware
- Layer 2 protocol tunneling
- Jumbo frames on all ports (up to 9216 bytes)
- Baby giants (up to 1600 bytes)
- Layer 3 Features:
- Static IP routing
- IP routing protocols: EIGRP, OSPF, RIP, RIP2
- Software routing of IPX and AppleTalk
- IS-IS routing protocol
- Cisco Group Management Protocol (GMP) server
- IPv6 software switching support
- Advanced Security:
- TACACS+ and RADIUS
- 802.1x user authentication
- 802.1x accounting
- 802.1x authentication failure
- 802.1x Private VLAN assignment
- 802.1x Private Guest VLAN
- 802.1x Radius-supplied time out
- Trusted boundary
- Port security
- Trunk port security
- Sticky port security
- SSHv1 and v2
- Unicast MAC filtering
- Unicast port flood blocking
- Dynamic Address Resolution Protocol (ARP) inspection
- IP source guard
- Community PVLAN
Port/Expansion Slot Details - 48 x Gigabit Ethernet Network
- 4 x Fast Ethernet Expansion Slot
Power Source Power Supply Product Line Catalyst Shared SFP Slot Yes NSN Part Number 7.03E+12 SKU UNSPSC 43222612 SKU UPC 7.46E+11 Standard Memory 256 MB Total Number of Network Ports 48 - Description
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Details
Cisco Catalyst 4948 is a wire-speed, low latency, 48-port 10/100/1000 Ethernet, Layer 2-4, 1-rack-unit (RU), fixed-configuration switch for rack-optimized server-switching applications. The Cisco Catalyst 4948 Switch offers exceptional performance and reliability for Layer 2 and Layer 3 server switching deployments for enterprise and small and medium-sized (SMB) businesses. - Reviews
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