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Cisco Catalyst 4948E - switch - 48 ports - Managed - rack-mountable

Manufacturer part number (MPN): WS-C4948E-E
Cisco Catalyst 4948E - Switch - L3 - Managed - 48 x 10/100/1000 + 4 x SFP+ - rack-mountable

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Full Description

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The Cisco Catalyst 4948E Ethernet Switch is built from the start to deliver class-leading, full-featured server-access switching. The switch offers forty-eight 10/100/1000 Gbps RJ45 downlink ports and four 1/10 Gigabit Ethernet uplink ports and is designed to simplify data center architecture and operations by offering service provider-grade hardware and software in a one Rack Unit (1RU) form factor optimized for full-featured Top-of-Rack (ToR) data center deployments.

  • Strict front-to-back cooling with no side or top venting
  • Large shared packet buffers for micro-burst protection
  • Industry leading multicast performance
  • Zero-touch provisioning with Cisco IOS Embedded Event Manager (EEM)
  • Advanced quality of service (QoS)
  • Management through Simple Network Management Protocol (SNMP) and XML interfaces
  • True out-of-band management port
  • Shared-buffer architecture
    All Cisco Catalyst 4900 Series Switches are designed using a simple yet highly scalable architecture. One of the main differences between the Cisco Catalyst 4900 Series and other data center platforms is the shared-memory architecture, which reduces the need for latency and jitter causing internal packet copy operations from one buffer space to another. This shared memory space has an additional advantage in multicast environments, in which a single packet may be transmitted from any number of ports without replication of the packet payload internally. Thus, this switch series provides a write-once architecture.
  • Smart top-of-rack design
    Historically, data center design engineers have had to trade off access-layer features such as QoS, network visibility, and security when moving from an end-of-row (EoR) to a ToR data center design. The Cisco Catalyst 4948E offers the same features found on large EoR data center switches in a 1RU form factor optimized for ToR deployments.
  • Predictable performance and scalability
    The Cisco Catalyst 4948E, with its advanced multicast support, is optimized for multimedia applications. It supports Protocol Independent Multicast (PIM), Source-Specific Multicast (SSM), and Pragmatic General Multicast (PGM), providing end users with additional scalability to support multimedia applications. Also supported are Internet Group Management Protocol (IGMP) snooping and Multicast Listener Discovery (MLD) snooping in hardware, enhancing performance and reducing network traffic by allowing a switch to dynamically add and remove hosts from a multicast group.
  • Intelligent network services with QoS and sophisticated traffic management
    The Cisco Catalyst 4948E offers superior per-port QoS features to help ensure that network traffic is classified, prioritized, and scheduled optimally to efficiently manage bandwidth-intensive multimedia and time-sensitive and mission-critical applications. The Cisco Catalyst 4948E can classify, monitor, and mark incoming packets, allowing the administrator to differentiate traffic flows and enforce policies. Sharing, shaping, and strict-priority configurations determine scheduling of egress traffic.
Full Specification
General
Device Type Switch - 48 ports - L3 - Managed
Enclosure Type Rack-mountable 1U
Subtype Gigabit Ethernet
Ports 48 x 10/100/1000 + 4 x SFP+
Performance Switching capacity: 176 Gbps ¦ IPv4 switching: 131 Mpps ¦ IPv6 switching: 110 Mpps
MAC Address Table Size 55K entries
Routing Protocol OSPF, BGP-4, IS-IS, RIP-1, RIP-2, EIGRP, IGMPv2, HSRP, IGMP, DVMRP, VRRP, OSPFv2, PIM-SM, IGMPv3, OSPFv3, PIM-SSM, static IPv4 routing, static IPv6 routing, policy-based routing (PBR), RIPng, MLDv2, MLD
Remote Management Protocol SNMP 1, SNMP 2, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, HTTPS, TFTP, SSH, SSH-2, CLI
Authentication Method Secure Shell (SSH), RADIUS, TACACS+, Secure Shell v.2 (SSH2)
Features Hot swap module replacement, Layer 3 switching, Layer 2 switching, DHCP support, auto-negotiation, VLAN support, IGMP snooping, traffic shaping, MAC address filtering, Broadcast Storm Control, IPv6 support, Multicast Storm Control, Non-Stop Forwarding (NSF), Spanning Tree Protocol (STP) support, Per-VLAN Spanning Tree (PVST), tunnelling, DHCP snooping, Dynamic Trunking Protocol (DTP) support, Port Aggregation Protocol (PAgP) support, Access Control List (ACL) support, Quality of Service (QoS), Jumbo Frames support, Virtual Route Forwarding-Lite (VRF-Lite), MLD snooping, Dynamic ARP Inspection (DAI), Time Domain Reflectometry (TDR), Per-VLAN Spanning Tree Plus (PVST+), EIGRP Stub Routing
Compliant Standards IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.3ah, IEEE 802.1ag
Processor 1: 1 GHz
RAM 1 GB - SDRAM
Status Indicators Port status, link activity, power, link OK, system
Expansion / Connectivity
Interfaces 48 x 1000Base-T - RJ-45 ¦ 4 x SFP+
Power
Power Device Internal power supply - hot-plug
Installed Qty 1 (installed) / 2 (max)
Power Redundancy Optional
Power Redundancy Scheme 1+1 (with optional power supply)
Voltage Required AC 120/230 V (50/60 Hz)
Miscellaneous
Compliant Standards NEBS level 3, ETSI, CISPR 22 Class A, EN 61000-3-2, VCCI Class A ITE, EN 61000-3-3, EN55024, EN55022 Class A, EN50082-1, AS/NZ 3548 Class B, EMC, ICES-003 Class A, RoHS, EN300-386, FCC CFR21 Part 1040, UL 60950-1, IEC 60950-1, EN 60950-1, FCC Part 15 A, IEC 60825-1, CSA C22.2 No. 60950-1, EN 60825-1
Software / System Requirements
Software Included Cisco IOS Enterprise Services
Dimensions & Weight
Width 44.5 cm
Depth 49.3 cm
Height 4.4 cm
Weight 8.6 kg
Manufacturer Warranty
Service & Support Limited warranty - 1 year
Environmental Parameters
Min Operating Temperature 0 °C
Max Operating Temperature 40 °C
Humidity Range Operating 10 - 90%
Min Storage Temperature -40 °C
Max Storage Temperature 75 °C
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