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 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
Description
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
Throughput
72 mpps
102 mpps
• 250 mpps for IPv4
• 125 mpps for IPv6
IPv6 Support
In Software
In Software
In Hardware
Height
1RU
1RU
2RU
Modular Half-Card Slots
0
0
2
Maximum 10/100/1000 Ports
48
48
40
Maximum 10 Gigabit Ethernet Ports
0
2
24
Maximum Gigabit Ethernet (fiber) Ports
4
0
32 (Cisco TwinGig Converter Module)
Cisco TwinGig Converter Module Support
No
No
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
CPU
266 MHz
666 MHz
1.3 GHz
Synchronous Dynamic RAM (SDRAM)
256 MB
256 MB
512 MB
Active VLANs
4096
4096
4096
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
4096
4096
4096
Spanning Tree Protocol Instances
10000
10000
10000
Switched Virtual Interfaces (SVIs)
2000
2000
4000
Security and QoS Hardware Entries
32,000
32,000
128,000
MAC Addresses
32,000
55,000
55,000
Switched Port Analyzer (SPAN)
2 ingress and 4 egress
2 ingress and 4 egress
8 ingress and 8 egress
USB port
No
No
Yes
Compact Flash Memory Support
No
No
Yes
System Reset Button
No
No
Yes
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 http://www.cisco.com/en/US/products/hw/switches/ps4324/prod_white_papers_list.html.
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+
• Flexlink
• 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
• VRRP
• 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
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
Specification
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
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.
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.
Safety
• 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
EMC
• 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
• EN55024
• ETS300 386
• EN50082-1
• EN61000-3-2
• EN61000-3-3
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
Specification
Description
Network Equipment Building Standards (NEBS)
• GR-63-Core NEBS Level 3
• GR-1089-Core NEBS Level 3
ETSI
• 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 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
Yes
Yes
Basic L2
Yes
Yes
SPAN
2 sessions
8 sessions
Location Services
No
Yes
SmartCallHome
No
Yes
HSRP and VRRP
No
Yes
GLBP
No
Yes
L2PT and Q-in-Q
No
Yes
Auto QoS
Yes*
Yes
EIGRP Stub
No
Yes
PIM SM/DM
No
Yes
MLD Snooping
Yes*
Yes
Flex Link
Yes*
Yes
PVST+ & RPVST+
Yes*
Yes
EEM
No
Yes
Smartports
Yes*
Yes
* 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
Description
WS-C4948-10GE-S
Cisco Catalyst 4948-10GE, IP Base Image (RIP, static routes,), one AC power supply, fan tray
WS-C4948-10GE-E
Cisco Catalyst 4948-10GE, Enterprise Services Image (OSPF, EIGRP, IS-IS, BGP, IPX, AppleTalk), one AC power supply, fan tray
WS-C4948-10GE
Cisco Catalyst 4948-10GE, optional software image, optional power supplies, fan tray
WS-C4948-10GEBDL
Cisco Catalyst 4948-10GE, 10 switch multi-pack bundle shipped in 1 box, volume service option
S49LB-12252SG(=)
Cisco IOS Software for Cisco Catalyst 4900 Series Switches (LAN Base image)
S49LBK9-12252SG(=)
Cisco IOS Software for Cisco Catalyst 4900 Series Switches (LAN Base image with Triple Data Encryption Standard [3DES])
S49IPB-12252SG(=)
Cisco IOS Software for Cisco Catalyst 4900 Series Switches (IP Base image)
S49IPBK9-12252SG(=)
Cisco IOS Software for Cisco Catalyst 4900 Series Switches (IP Base image with Triple Data Encryption Standard [3DES])
S49ES-12252SG(=)
Cisco IOS Software for Cisco Catalyst 4900 Series Switches (Enterprise Services image with BGP support)
S49ESK9-12252SG(=)
Cisco IOS Software for Cisco Catalyst 4900 Series Switches (Enterprise Services image with 3DES and BGP support)
WS-C4900-SW-LIC
Catalyst 4948 IP Base Upgrade License for LAN Base IOS
PWR-C49-300AC(=)
Cisco Catalyst 4900 300W AC power supply
PWR-C49-300AC/2
Cisco Catalyst 4900 300W AC power supply, redundant
PWR-C49-300DC(=)
Cisco Catalyst 4900 300W DC power supply
PWR-C49-300DC/2
Cisco Catalyst 4900 300W DC power supply, redundant
WS-X4991=
Cisco Catalyst 4900 fan tray (spare)
C4948-ACC-KIT=
Spare rack-mount and cable guide
C4948-BKT-KIT=
C4900 front- and rear-mount brackets
C4948-REAR-BKT(=)
C49xx high performance rear mount brackets
Power Cable Options
CAB-US515-C15-US
AC power cord, 110V North America
CAB-N5K6A-NA
AC power cord, 220V North America
CAB-AS3112-C15-AU
AC power cord (Australia)
CAB-CEE77-C15-EU
AC power cord (Europe)
CAB-C2316-C15-IT
AC power cord CD12 (Italy)
CAB-IR2073-C15-AR
AC power cord (Argentina)
CAB-BS546-C15-SA
AC power cord (South Africa)
CAB-BS1363-C15-UK
AC power cord (United Kingdom)
CAB-7KACSXX
AC power cord (Switzerland)
X2 Options
X2-10GB-LR
10GB long-reach (LR) module
X2-10GB-CX4
10GB CX4 module
X2-10GB-LX4
10GB LX4 module
X2-10GB-SR
10GB short-reach (SR) module
X2-10GB-ER
10GB extended-reach (ER) module
X2-10GB-ZR
10GB ZR module
DWDM-X2
10GB DWDM X2 module with DOM support
Warranty
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)
Table 9. Cisco Technical Support Services: Components
Feature
Benefits
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.
Cisco.com
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
Feature
Benefits
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 additional information about the Cisco Catalyst 4500 Series, visit http://www.cisco.com/go/catalyst4500. For additional information about Cisco products, contact:
