Cisco Catalyst 4900 Series Switches

Cisco Catalyst 4948 10 Gigabit Ethernet Switch Data Sheet

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10 Gigabit Ethernet Switching for High-Performance, Rack-Optimized Server Switching

Product Overview

The Cisco Catalyst® 4948 10 Gigabit Ethernet Switch is a wire-speed, low-latency, Layer 2 to 4, 1-rack-unit (1RU), fixed-configuration switch for rack-optimized server switching. Based on the proven Cisco® Catalyst 4500 Series hardware and software architecture, the Cisco Catalyst 4948 10 Gigabit Ethernet Switch offers exceptional performance, bandwidth, and reliability for low-density, multilayer aggregation of high-performance servers and workstations. High performance and scalability of intelligent network services is made possible with dedicated specialized resources known as ternary content addressable memory (TCAM). Ample TCAM resources (64,000 entries) enable high feature capacity, providing wire-speed routing and switching performance with concurrent provisioning of services such as quality of service (QoS) and security and helping ensure scalability for today’s network requirements with ample room for future growth.

The Cisco Catalyst 4948 10 Gigabit Ethernet Switch offers 48 ports of wire-speed 10/100/1000BASE-T with 2 ports of wire-speed 10 Gigabit Ethernet (X2 optics). Exceptional reliability and serviceability are delivered with optional internal AC or DC 1+1 hot-swappable power supplies and a hot-swappable fan tray with redundant fans (Figures 1 and 2).

Figure 1.      Cisco Catalyst 4948 10 Gigabit Ethernet Switch

Figure 2.      Rear View of Cisco Catalyst 4948 10 Gigabit Ethernet Switch with Dual Redundant Power Supplies and Removable Fan Tray

Features and Benefits

Wire-Speed Performance in All Directions

The Cisco Catalyst 4948 10 Gigabit Ethernet Switch delivers wire-speed throughput with low latency for data-intensive applications using a 136-Gbps switching fabric with a forwarding rate of 102 million packets per second (mpps) in hardware for Layer 2 to 4 traffic. High-performance switching is maintained regardless of the number of route entries or Layer 3 and 4 services enabled. Hardware-based Cisco Express Forwarding routing architecture enables increased scalability and performance. X2 10 Gigabit Ethernet optics provide 20 Gigabit Ethernet wire-speed uplinks for outstanding throughput of traffic.

Power-Supply Redundancy for Nonstop Operation

The Cisco Catalyst 4948 10 Gigabit Ethernet Switch provides reliability for critical applications with 1+1 redundant, hot-swappable internal AC or DC power supplies. The 1+1 power supply design provides A-to-B failover when power supplies are connected to different circuits. AC and DC power supplies can be mixed in the same unit for outstanding deployment flexibility. The Cisco Catalyst 4948 10 Gigabit Ethernet Switch also has a hot-swappable fan tray with four redundant fans for additional serviceability and availability.

Comprehensive Management

The Cisco Catalyst 4948 10 Gigabit Ethernet Switch includes a single, dedicated 10/100 console port and a single, dedicated 10/100 management port for offline disaster recovery. Remote in-band management is available with the Simple Network Management Protocol (SNMP), Telnet client, Bootstrap Protocol (BOOTP), and Trivial File Transfer Protocol (TFTP). Support for local or remote out-of-band management is delivered through a terminal or modem attached to the console interface. The management port helps enable the Cisco Catalyst 4948 10 Gigabit Ethernet Switch to reload a new image from a TFTP server within seconds.

The Cisco Catalyst 4948 10 Gigabit Ethernet Switch delivers a comprehensive set of management tools to provide the visibility and control required for server switching. Managed with CiscoWorks solutions and embedded CiscoWorks CiscoView, the Cisco Catalyst 4948 10 Gigabit Ethernet Switch can be configured and managed to deliver device, VLAN, traffic, and policy management. These web-based management tools offer numerous services, including software deployment and quick isolation of error conditions.

Software Configuration Options

Table 1 describes the software configuration options for the Cisco Catalyst 4948 10 Gigabit Ethernet Switch.

Table 1.       Software Configuration Options for the Cisco Catalyst 4948 10 Gigabit Ethernet Switch

Software Image


LAN Base Image

Basic Layer 2 image

IP Base Image

Standard Layer 3 image, including Routing Information Protocol Version 1 (RIPv1), RIPv2, static routes, and Enhanced Interior Gateway Routing Protocol (EIGRP) stub

Enterprise Services Image

Enhanced Layer 3 image, including Open Shortest Path First (OSPF), Intermediate System-to-Intermediate System (IS‑IS), EIGRP, Border Gateway Protocol (BGP), AppleTalk, and Internetwork Packet Exchange (IPX) software routing; also includes all IP Base image features


Feature Comparison

Table 2 compares the features of the Cisco Catalyst 4948 Switch, Catalyst 4948 10 Gigabit Ethernet Switch, and Catalyst 4900M Switch.

Table 2.       Cisco Catalyst 4900 Series Switches Model Comparison

Feature and Description

Cisco® Catalyst 4948

Cisco Catalyst 4948 10 Gigabit Ethernet

Cisco Catalyst 4900M

Switching Capacity

96 Gbps

136 Gbps

320 Gbps


72 mpps

102 mpps

  250 mpps for IPv4
  125 mpps for IPv6

IPv6 Support

In Software

In Software

In Hardware





Modular Half-Card Slots




Maximum 10/100/1000 Ports




Maximum 10 Gigabit Ethernet Ports




Maximum Gigabit Ethernet (fiber) Ports



32 (Cisco TwinGig Converter Module)

Cisco TwinGig Converter Module Support



Yes (half-cards only)

Uplink Optic Type

4 Small Form-Factor Pluggable (SFP) optics

2 X2 (10 Gigabit Ethernet) optics

8 X2 (10 Gigabit Ethernet) optics

Multilayer Switching

IP Base and Enterprise Services options

IP Base and Enterprise Services options

IP Base and Enterprise Services options

Shared Buffer

16 MB

16 MB

16 MB


266 MHz

666 MHz

1.3 GHz

Synchronous Dynamic RAM (SDRAM)

256 MB

256 MB

512 MB

Active VLANs




Multicast Entries

  28,000 (Layer 3)
  16,000 (Layer 2)
  28,000 (Layer 3)
  16,000 (Layer 2)
  56,000 for IPv4
  28,000 for IPv6

Per-VLAN Spanning Tree (PVST) and VLAN IDs




Spanning Tree Protocol Instances




Switched Virtual Interfaces (SVIs)




Security and QoS Hardware Entries




MAC Addresses




Switched Port Analyzer (SPAN)

2 ingress and 4 egress

2 ingress and 4 egress

8 ingress and 8 egress

USB port




Compact Flash Memory Support




System Reset Button




Minimum Software Requirement

Cisco IOS® Software Release 12.2(20)EWA or later

Cisco IOS Software Release 12.2(25)EWA or later

Cisco IOS Software Release 12.2(40)XO or later


Predictable Performance and Scalability

The Cisco Catalyst 4948 10 Gigabit Ethernet Switch is optimized for multimedia applications with its advanced multicast support. 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 is Internet Engineering Task Force (IGMP) 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 4948 10 Gigabit Ethernet Switch offers superior per-port QoS features to help ensure that network traffic is classified, prioritized, and scheduled optimally to efficiently manage bandwidth-hungry multimedia, and time-sensitive and mission-critical applications. The Catalyst 4948 10 Gigabit Ethernet Switch can classify, police, and mark incoming packets, allowing the administrator to differentiate between traffic flows and enforce policies. Sharing, shaping, and strict-priority configurations determine scheduling of egress traffic. The Catalyst 4948 10 Gigabit Ethernet Switch also supports Dynamic Buffer Limiting (DBL), a congestion-avoidance feature. For details about the QoS features (including DBL) on the Cisco Catalyst 4948 10 Gigabit Ethernet Switch, refer to the Cisco Catalyst 4500 Series supervisor engine QoS overview at

Features and Specifications at a Glance

Layer 2 Features

   Layer 2 hardware forwarding at 102 mpps

   Layer 2 switch ports and VLAN trunks

   IEEE 802. 1Q VLAN encapsulation

   Inter-Switch Link (ISL) VLAN encapsulation

   Dynamic Trunking Protocol (DTP)

   VLAN Trunking Protocol (VTP) and VTP domains

   Support for 4096 VLANs per switch

   PVST and PVST+


   Spanning Tree PortFast and PortFast Guard

   Spanning Tree UplinkFast and BackboneFast

   IEEE 802.1s

   IEEE 802.1w

   IEEE 802.3ad

   Spanning Tree Root Guard

   Cisco Discovery Protocol Versions 1 and 2

   IGMPv1, v2, and v3 snooping

   Cisco EtherChannel technology, Cisco Fast EtherChannel technology, and Cisco Gigabit EtherChannel technology

   Port Aggregation Protocol (PAgP)

   Link Aggregation Control Protocol (LACP)

   Unidirectional link detection (UDLD) and aggressive UDLD

   IEEE 802.1 QinQ in hardware

   Layer 2 protocol tunneling

   Multilayer jumbo frames (up to 9216 bytes)

   Baby giants (up to 1600 bytes)

   Unidirectional Ethernet

   Storm control (formally known as broadcast and multicast suppression)

   Community private VLANs (PVLANs)

   Forced 10/100 autonegotiation

   Web Content Communication Protocol (WCCP) Version 2 Layer 2 redirect

   Private VLAN promiscuous trunk

   Layer 2 promiscuous trunk over trunk port (L2PT)

   Class-of-service (CoS) mutation

   E-OAM 802.3ah and CFM: 802.1ag

Layer 3 Features

   Jumbo frames on all ports (up to 9216 bytes)

   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 (NSF) awareness

   Hot Standby Router Protocol (HSRP) v1 and v2

   Software routing of Internetwork Packet Exchange (IPX) and AppleTalk

   IS-IS routing protocol

   IGMPv1, v2, and v3

   IGMP filtering on access and trunk ports

   IP Multicast routing protocols: PIM, SSM, and Distance Vector Multicast Routing Protocol (DVMRP)

   Auto rendezvous point (Auto-RP)

   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)

   VRF-aware IP services

   IPv6 (software switched)

   OSPF fast convergence

   OSPF and EIGRP fast-convergence protection

   EIGRP stub

   Virtual Router Redundancy Protocol (VRRP)

   IP unnumbered for SVI

   NSF (Non-Stop Forwarding) Awareness

   WCCPv2 (Web Cache Communications Protocol)

   Gateway Load Balancing Protocol (GLBP)

High-Availability Features

   1+1 hot swappable AC or DC power supplies

   Hot-swappable field-replaceable fan tray with redundant fans

   HSRP v1 and v2


   Cisco IOS Embedded Event Manager (EEM)

   Cisco Generic Online Diagnostics (GOLD)

   Smart Call Home

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 4 headers

   Input and output policing based on Layer 3 and 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

   Match class of service (CoS) for non-IPv4 traffic

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 and User Datagram Protocol (UDP) hardware-based filtering at 102 mpps

   No performance penalty with advanced Layer 3 and 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

   Support for 32,000 entries in routing table (shared between unicast and multicast)

   Scalability to 2000 virtual ports ( SVIs )

   Bandwidth aggregation up to 40 Gbps using Cisco Gigabit Ethernet EtherChannel technology

   Hardware-based multicast management

   Hardware-based access control lists (ACLs), router ACLs (RACLs), and VLAN ACLs (VACLs)

Comprehensive management

   Manageable through Cisco Network Assistant (CNA)

   Single console port and single IP address to manage all system features

   Software configuration management, including local and remote storage

   Manageable through CiscoWorks Windows network-management software on a per-port and per-switch basis, providing a common management interface for Cisco routers, switches, and hubs

   SNMPv1, v2, and v3 instrumentation, delivering comprehensive in-band management

   Command-line interface (CLI) based management console to provide detailed out-of-band management

   Remote Monitoring (RMON) software agent to support four RMON groups (history, statistics, alarms, and events) for enhanced traffic management, monitoring, and analysis

   Support for all nine RMON groups through the use of a Cisco SwitchProbe analyzer (Switched Port Analyzer [SPAN])

   port, which permits traffic monitoring of a single port, a group of ports, or the entire switch from a single network analyzer or RMON probe

   Analysis support, including ingress port, egress port, and VLAN SPAN

   Layer 2 traceroute

   Remote SPAN (RSPAN)

   Cisco SmartPort macros

   SPAN ACL filtering

   Dynamic Host Configuration Protocol (DHCP) client autoconfiguration

   Enhanced SNMP MIB support


   Time Domain Reflectometry (TDR)

   MAC address notification

   Onboard failure logging (OBFL)

   Network Mobility Service Protocol (NMSP)

Advanced Security

   TACACS+ and RADIUS, which help enable centralized control of the switch and restrict unauthorized users from altering the configuration

   Standard and extended ACLs on all ports

   IEEE 802. 1x user authentication (with VLAN assignment, voice VLAN, port security, guest VLAN, private guest VLAN, private VLAN, and RADIUS-supplied session timeout extensions)

   IEEE 802.1x accounting

   IEEE 802. 1x authentication failure

   IEEE 802. 1x private VLAN assignment

   IEEE 802. 1x private guest VLAN

   IEEE 802. 1x RADIUS-supplied timeout

   IEEE 802.1x Mac-Auth-Bypass

   IEEE 802.1x inaccessible authentication bypass

   Cisco Network Admission Control (NAC) Layer 2 IEEE 802.1x

   Cisco NAC Layer 2 IP

   Cisco NAC Layer 2 IP inaccessible authentication bypass

   Trusted boundary

   RACLs on all ports (no performance penalty)


   Port ACLs (PACLs)

   Private VLANs (PVLANs) on access and trunk ports


   DHCP snooping

   DHCP Option 82

   DHCP Option 82 insertion

   DHCP Option 82 pass-through

   Port security

   Port security for PVLAN ports

   Sticky port security

   Secure Shell (SSH) Protocol Versions 1 and 2

   VLAN Management Policy Server (VMPS) client

   Unicast MAC filtering

   Unicast port flood blocking

   Dynamic Address Resolution Protocol (ARP) inspection

   IP Source Guard

   Community PVLANs

   Trunk port security

   IEEE 802.1x inaccessible authentication bypass

   MAC authentication bypass

   Control plane policing

   IEEE 802.1x unidirectional controlled port

   Voice VLAN sticky port security

   Secure Copy Protocol (SCP)

   Cisco EtherChannel trunk port security


   Enhanced Object Tracking (EOT)

   IP service-level agreement (SLA)

   CiscoWorks LAN Management Solution (LMS), including CiscoWorks Resource Manager Essentials

   CiscoWorks CiscoView

   Cisco Network Assistant (CNA) (RFC 1493)

   Static multicast MAC address in BRIDGE-MIB (RFC 3636) (802.3ad) (MIB-II) (APPLETALK MIB) (OSPF-MIB) (RFC 1757) (RFC 2021) (Internet-Draft) (RFC 2571) (RFC 2572) (RFC 2573) (RFC 2573) (RFC 2574) (RFC 2575)



Industry Standards

   Ethernet: IEEE 802.3 and 10BASE-T

   Fast Ethernet: IEEE 802.3u, 100BASE-TX, and 100BASE-FX

   Gigabit Ethernet: IEEE 802.3z and 802.3ab

   IEEE 802. 1D Spanning Tree Protocol

   IEEE 802.1w rapid reconfiguration of spanning tree

   IEEE 802. 1s multiple VLAN instances of spanning tree

   IEEE 802.3 ad LACP

   IEEE 802. 1p CoS prioritization

   IEEE 802.1Q VLAN

   IEEE 802. 1x user authentication

   X2 support

   RMON I and II standards

Indicators and Ports

   System status: Green (operational), or red (faulty)

   Console: RJ-45 socket

   Reset (switch recessed for protection)

   Uplinks: Link and active

   Image management port: 10/100BASE-TX (RJ-45 socket) data terminal equipment (DTE); green (good), orange (disabled), or off (not connected)

Supported X2 Optics

Table 3 lists the X2 optics supported by the Cisco Catalyst 4948 10 Gigabit Ethernet Switch.

Table 3.       X2 Optics Supported by Cisco Catalyst 4948 10 Gigabit Ethernet Switch


Maximum Distance over Specified Medium


10 km on single-mode fiber (SMF) (G.652)


Up to 15m on IBX4 cable


300m on multimode fiber (MMF)


26 to 300m on MMF (depends on MMF type)


40 km on SMF


220m on MMF


1550 nm on SMF


1530.33 nm to 1560.61 nm X2 (100-GHz ITU grid)


Power Supply

The Cisco Catalyst 4948 10 Gigabit Ethernet Switch offers a choice of 300-watt (W) AC or DC power supplies. The switch can operate with one power supply present. When two power supplies are installed, the switch shares the power load between the two supplies (Table 4).

Table 4.       AC and DC Power Supply Specifications


300W AC

300W DC

Input Current

4A at 100V

8A @ -40.5 to -75VDC

2A at 240V

8A at –48 to –60V

Output Current

25A at 12 VDC

25A @ 12 VDC


Weight: 2.0 kg

Weight: 2.0 kg

Heat Dissipation

1023 BTU/hr

1023 BTU/hr

Average Power use

212 Watts

212 Watts

Switch Dimensions

   Width: 17.290 in. (43.9166 cm)

   Depth: 16.14 in. (40.9956 cm)

   Height: 1.712 in. (4.445 cm)

   Weight: 16.5 lb (7.48 kg) with one power supply

Software Requirements

The Cisco Catalyst 4948 10 Gigabit Ethernet Switch is supported only in Cisco IOS Software and is not supported in the Cisco Catalyst Operating System Software. The minimum software version is Cisco IOS Software Release 12.2(25)EWA or later.

For the latest software release information and recommendations, please reference the product bulletin at

Environmental Conditions

   Operating temperature: 32 to 104ºF (0 to 40ºC)

   Storage temperature: –40 to 167ºF (–40 to 75ºC)

   Relative humidity: 10 to 90 percent, noncondensing

   Operating altitude: –60 to 2000m

Regulatory Standards Compliance

Table 5 summarizes the regulatory standards compliance of the Cisco Catalyst 4948 10 Gigabit Ethernet Switch.

Table 5.       Regulatory Standards Compliance of Cisco Catalyst 4948 10 Gigabit Ethernet Switch



Regulatory Compliance

Products bear CE Marking, indicating compliance with the 89/336/EEC and 73/23/EEC directives, which include the safety and EMC standards listed here.


  UL 60950-1
  CAN/CSA-C22.2 No. 60950-1
  EN 60950-1
  IEC 60950-1
  AS/NZS 60950
  IEC 60825-1
  IEC 60825-2
  EN 60825-1
  EN 60825-2
  21 CFR 1040


  FCC Part 15 (CFR 47) Class A
  ICES-003 Class A
  EN55022 Class A
  CISPR22 Class A
  AS/NZS 3548 Class A
  VCCI Class A
  ETS300 386

Table 6 lists the industry EMC, safety, and environmental standards for the Cisco Catalyst 4948 10 Gigabit Ethernet Switch.

Table 6.       Industry EMC, Safety, and Environmental Standards



Network Equipment Building Standards (NEBS)

  GR-63-Core NEBS Level 3
  GR-1089-Core NEBS Level 3


  ETS 300 019 Storage Class 1.1
  ETS 300 019 Transportation Class 2.3
  ETS 300 019 Stationary Use Class 3.1

New Cisco IOS Software Packaging for the Cisco Catalyst 4900 Series

Cisco provides a new Cisco IOS Software package for the Cisco Catalyst 4900 Series, creating a new foundation for features and functions and offering consistency across all Cisco Catalyst switches. The new Cisco IOS Software release is designated Release 12.2SG.

Prior Cisco IOS Software images for the Catalyst 4900 Series, formally known as Basic Layer 3 (Standard Multilayer Image [SMI]) and Enhanced Layer 3 (Enhanced Multilayer Image [EMI]) images, now are called IP Base and Enterprise Services images, respectively. Unless otherwise specified, all currently shipping Cisco Catalyst 4900 software features based on Cisco IOS Software are supported in the IP Base image; however, note the following points regarding the IP Base image:

   The IP Base image does not support the following routing-related features: BGP, EIGRP, OSPF, IS-IS, IPX, AppleTalk, VRF-lite, and PBR).

   The IP Base image supports EIGRP stub for Layer 3 routing on all Cisco Catalyst 4900 Series supervisor engines. For more information on EIGRP stub functions, go to


The Enterprise Services image supports all Cisco Catalyst 4900 Series software features based on Cisco IOS Software, including enhanced routing. Table 1 earlier in this document provides a more detailed description of the feature differences between the IP Base and Enterprise Services images.

LAN Base Image

Starting with Cisco IOS Release 12.2(52)SG LAN Base Software image will be the default IOS option for the Catalyst 4948. IP Base and Enterprise Services image are available as optional upgrades. The LAN Base image is supported on the Catalyst 4948 and 4948-10GE. It is primarily focused on customers Layer 2 requirements and therefore many of the IP Base features have been removed. If at a later date some of the features are required LAN Base is fully upgradable to IP Base or Enterprise Services.

Table 7.       IOS Feature Comparison–LAN Bas


LAN Base

IP Base

Datacenter Grade HW



Basic L2




2 sessions

8 sessions

Location Services












L2PT and Q-in-Q



Auto QoS









MLD Snooping



Flex Link












* Support added in 12.2(53)SG

Ordering Information

Table 8 provides ordering information for the Cisco Catalyst 4948 10 Gigabit Ethernet Switch.

Table 8.       Ordering Information

Part Number



Cisco Catalyst 4948-10GE, IP Base Image (RIP, static routes,), one AC power supply, fan tray


Cisco Catalyst 4948-10GE, Enterprise Services Image (OSPF, EIGRP, IS-IS, BGP, IPX, AppleTalk), one AC power supply, fan tray


Cisco Catalyst 4948-10GE, optional software image, optional power supplies, fan tray


Cisco Catalyst 4948-10GE, 10 switch multi-pack bundle shipped in 1 box, volume service option


Cisco IOS Software for Cisco Catalyst 4900 Series Switches (LAN Base image)


Cisco IOS Software for Cisco Catalyst 4900 Series Switches (LAN Base image with Triple Data Encryption Standard [3DES])


Cisco IOS Software for Cisco Catalyst 4900 Series Switches (IP Base image)


Cisco IOS Software for Cisco Catalyst 4900 Series Switches (IP Base image with Triple Data Encryption Standard [3DES])


Cisco IOS Software for Cisco Catalyst 4900 Series Switches (Enterprise Services image with BGP support)


Cisco IOS Software for Cisco Catalyst 4900 Series Switches (Enterprise Services image with 3DES and BGP support)


Catalyst 4948 IP Base Upgrade License for LAN Base IOS


Cisco Catalyst 4900 300W AC power supply


Cisco Catalyst 4900 300W AC power supply, redundant


Cisco Catalyst 4900 300W DC power supply


Cisco Catalyst 4900 300W DC power supply, redundant


Cisco Catalyst 4900 fan tray (spare)


Spare rack-mount and cable guide


C4900 front- and rear-mount brackets


C49xx high performance rear mount brackets

Power Cable Options


AC power cord, 110V North America


AC power cord, 220V North America


AC power cord (Australia)


AC power cord (Europe)


AC power cord CD12 (Italy)


AC power cord (Argentina)


AC power cord (South Africa)


AC power cord (United Kingdom)


AC power cord (Switzerland)

X2 Options


10GB long-reach (LR) module


10GB CX4 module


10GB LX4 module


10GB short-reach (SR) module


10GB extended-reach (ER) module


10GB ZR module


10GB DWDM X2 module with DOM support


The Cisco Catalyst 4948 10 Gigabit Ethernet Switch has a 1-year limited hardware warranty. It includes hardware replacement with a 10-day turnaround from receipt of a return materials authorization (RMA).

Cisco Technical Support Services

Cisco Technical Support Services helps ensure that your Cisco products operate efficiently, remain highly available, and benefit from current system software to help you effectively manage your network service while controlling operating costs.

Cisco Technical Support Services (Tables 9 and 10) provides significant benefits that go beyond what is offered under the Cisco warranty policy. Services available under a Cisco SMARTnet® service contract that are not covered under a warranty include the following:

   Latest software updates

   Rapid replacement of hardware with next-day, 4-hour, or 2-hour dispatch options

   Ongoing technical support through Cisco Technical Assistance Center (TAC)

   Registered access to

Table 9.       Cisco Technical Support Services: Components



Software Support

Software support offers maintenance and minor and major updates for licensed feature sets. Downloading new maintenance releases, patches, or updates of Cisco IOS Software helps enhance and extend the useful life of Cisco devices. Through major software updates, organizations can extend the life of equipment and maximize application technology investments by:

  Adding new functions that, in many cases, require no additional hardware investment
  Increasing the performance of current functions
  Enhancing network or application availability, reliability, and stability

Cisco TAC Support

With more than 1000 highly trained customer support engineers, 390 CCIE® experts, and access to 13,000 research and development engineers, Cisco TAC complements your in-house staff with a high level of knowledge in data, voice, and video communications networking technology. Its sophisticated call-routing system quickly routes calls to the correct technology personnel. The Cisco TAC is available 24 hours a day, 365 days a year.

This award-winning website provides 24-hour access to an extensive collection of online product and technology information, interactive network management and troubleshooting tools, and knowledge-transfer resources that can help customers reduce costs by increasing staff self-sufficiency and productivity.

Advance Hardware Replacement

Advance replacement and onsite field engineer options supply fast access to replacement hardware and field resources for installing hardware, minimizing the risk of potential network downtime.

Smart Call Home

Cisco Smart Call Home is a proactive, connected service capability of Cisco SMARTnet Service that is available at no additional cost on Cisco Catalyst 4500 Series Switches. Smart Call Home devices can continuously monitor their own health using GOLD diagnostics technology and automatically notify you of potential issues using secure transmissions. If a serious problem arises, Smart Call Home automatically detects it and generates a Cisco Technical Assistance Center (TAC) service request that is routed to the right team for a particular problem.

Table 10.     Technical Support Services: Competitive Differentiators



Worldwide Virtual Lab

This extensive lab of Cisco equipment and Cisco IOS Software releases provides an invaluable engineering resource and knowledge base for training, product information, and recreation and testing of selected network problems to help decrease time to resolution.

Cisco TAC Training

  Boot camps
  Tech calls
  Tech forums

Cisco is committed to providing customers the latest in technology support. Cisco TAC training programs help customers avoid opening cases. These programs also provide knowledge transfer of Cisco networking expertise.

Cisco Live

A powerful suite of Internet-enabled tools with firewall-friendly features, these secure, encrypted Java applets can turn a simple phone call into an interactive collaboration session, allowing customers and Cisco TAC support engineers to work together more effectively.

Global logistics

With 10,000 onsite field engineers and a US$2.3 billion investment in inventory, Cisco delivers award-winning, worldwide hardware replacement support from 650 depots, covering 120 countries.

Cisco IOS Software

Cisco IOS Software employs 100 discrete technologies with more than 2000 features. Each year, 400 new features are added. Cisco IOS Software is installed in more than 10 million devices and is running on more than 10,000 networks worldwide. It operates on the world’s largest IPv6 and voice-over-IP (VoIP) networks and in all major service provider networks worldwide.

For More Information

To learn more about how you can take advantage of Cisco Technical Support Services, talk to your Cisco representative or visit Cisco Technical Support Services at

For additional information about the Cisco Catalyst 4500 Series, visit For additional information about Cisco products, contact:

   United States and Canada: 800 553-NETS (6387)

   Europe: 32 2 778 4242

   Australia: 612 9935 4107

   Other: 408 526-7209