The Catalyst 6500 Series sets the new standard for IP communications
and application delivery in enterprise campus and service provider networks
by maximizinguser productivity and enhancing operational control while providing
unprecedented investment protection. As Cisco’s premier intelligent multilayer
®
modular switch, the Catalyst
end-to-end, from the wiring closet to the core, to the data center, to the WAN edge.
Idealfor enterprises and serviceproviders seeking to reduce theirtotal cost of ownership, the
Cisco Catalyst 6500 Series delivers scalable performance and port density across a range of
chassis configurations and LAN/WAN/MAN interfaces. Available in 3-, 6-, 9-, and 13-slot
chassis, Cisco Catalyst 6500 Series switches feature an unparalleled range of integrated
services modules, including multigigabitnetwork security,contentswitching, telephony,and
network analysis modules.
6500 Series delivers secure, converged services,
By taking advantage of a forward-thinking architecture that uses a common set of modules
and operating system software across all Cisco Catalyst 6500 Series chassis, the Catalyst
6500 Series delivers a high level of operational consistency that optimizes IT infrastructure
usage and enhances return on investment. From 48-port to 576-port 10/100/1000 or 1152port 10/100 Ethernet wiring closets to hundreds-of-Mpps network cores supporting up to
192 1-Gbps or 32 10-Gbps trunks, the Cisco Catalyst 6500 Series provides an optimal
platform that maximizes network uptime with stateful failover capability between
redundant routing and forwarding engines.
With numerous industry-firsts and industry-leading features to its credit, the Catalyst 6500
Seriessupports three generations of modulesthat continue to demonstrate the Catalyst6500
value and Cisco’scommitmentto innovation. Cisco’snewgeneration of Catalyst 6500 Series
modules and Supervisor Engine 720 incorporate 11 new Cisco-developed application
specific integrated circuits (ASICs)—extending Cisco’s leadership in networking while
providing unparalleled investment protection.
The Cisco Catalyst 6500 Series provides market-leading services, performance, port densities, and availability with
investment protection for enterprise and service provider markets. These include:
• Maximum network uptime—With platform, power supply, supervisor engine, switch fabric, and integrated
network services redundancy provides one- to three-second stateful failover and delivers application and services
continuity in a converged network environment, minimizing disruption of mission-critical data and services
• Comprehensive network security—Integrates proven, multigigabit Cisco security solutions, including intrusion
detection, firewall, VPN, and SSL into existing networks
• Scalable performance—Provides up to 400 Mpps performance with distributed forwarding architecture
• Forward-Thinking architecture with investment protection—Supports three generations of interchangeable,
hot-swappable modules in the same chassis, optimizing IT infrastructure usage, maximizing return on
investment, and reducing total cost of ownership
• Operational consistency—Features 3-, 6-, 9-, and 13-slot chassis configurations sharing a common set of
modules, Cisco IOS Software, Cisco Catalyst Operating System Software, and network management tools
that can be deployed anywhere in the network
• Unparalleled services integration and flexibility—Integrates advanced services such as security, wireless LAN
services, and content with converged networks, provides the widest range of interfaces and densities, from
10/100 and 10/100/1000 Ethernet to 10 Gigabit and from DS0 to OC-48, and performs in any deployment
end to end
Operational Consistency in End-to-End Cisco Catalyst 6500 Series Deployments
• Features 3-, 6-, 9-, and 13-slot chassis configurations that share a common set of modules, software, and network
management tools
• Deploys anywhere in the network—from the wiring closet to the core, to the data center, to the WAN edge
• Shares WAN port adapters with Cisco 7xxx router Series for reduced sparing and training costs
• Offers choice of Cisco IOS Software and Cisco Catalyst Operating System Software supported on all supervisor
engines, providing smooth migration from Cisco Catalyst 5000 Series and Cisco 7500 Series deployments
Maximum Network Uptime and Network Resiliency
• Provides packet-loss protection and the fastest recovery from network disruption
• Features fast, one- to three-second stateful failover between redundant supervisor engines
technology, IEEE 802.3ad link aggregation, IEEE 802.1s/w,
and Hot Standby Router Protocol/Virtual Router Redundancy Protocol (HSRP/VRRP) high-availability features
Integrated High-Performance Security and Network Management
Integrated gigabit-per-second services modules, deployed where external devices would not be feasible, simplify
network management and reduce total cost of ownership. These include:
• Gigabit firewall—provides access protection
• High-performance intrusion detection system (IDS)—provides intrusion detection protection
• Gigabit VPN and standards-based IP Security (IPSec)—support lower cost Internet and intracampus connections
Content-and Application-Aware Layers 2 Through 7 Switching Services
• Integrated content switching module (CSM) brings high-performance, feature-rich server and firewall load
balancing to the Cisco Catalyst 6500 Series, ensuring a safer and more manageable infrastructure with
unprecedented control
• Integrated multigigabit SSL acceleration combined with CSM provides a high-performance e-commerce solution
• Integrated multigigabit firewall and CSM provide a secure, high-performance, data-center solution
• Software features such as Network Based Application Recognition (NBAR) enhance network management
and control of bandwidth utilization
Scalable Performance
• Delivers the industry’s highest LAN switch performance, 400 Mpps, using the distributed Cisco Express
Forwarding dCEF720 platform
• Supports a mix of Cisco Express Forwarding (CEF) implementations and switch fabric speeds for optimal
wiring closet, core, data center, and WAN edge deployments, as well as service provider networks
Rich Layer 3 Services
• Multiprotocol Layer 3 routing supports traditional network requirements and provides a smooth transition
mechanism in the enterprise
• Provides hardware support for enterprise-class and service-provider-scale routing tables
• Provides IPv6 support in hardware (using Supervisor Engine 720) with an unparalleled high-performance
suite of services
• Provides hardware support for large enterprise-class and service-provider-scale routing tables
• Provides MPLS support in hardware to enable VPN services within the enterprise and facilitate smooth
integration with new high-speed service provider core infrastructures and Metro Ethernet deployments
Enhanced Data Voice, and Video Services
• Provides integrated IP communications throughout all Cisco Catalyst 6500 Series platforms
• Provides 10/100 and 10/100/1000 line cards, field upgradable with inline power using a daughter card
• Supports Cisco pre-standard inline power as well as standards-based IEEE 802.3af Power over Ethernet (PoE)
• Provides dense T1/E1 and foreign Exchange Station (FXS) voice-over-IP (VoIP) gateway interfaces for public
switched telephone network (PSTN) access and traditional phone, fax, and private branch exchange (PBX)
connections
• Supports high-performance IP multicast video and audio applications
• Provides integrated management necessary to effectively deploy a scalable enterprise-converged network
Highest Level of Interface Flexibility, Scalability, and Density
• Provides the port densities and interface choices that large mission-critical wiring closets, enterprise core,
and distribution networks require
• Supports up to 576 10/100/1000 Gigabit-over-copper ports or 1,152 10/100 Ethernet ports
• Features the industry’s first 96-port 10/100 RJ-45 module, with optional, field upgradable support for
802.3af PoE
• Provides up to 192 Gigabit Ethernet ports
• Features the industry’s first 10 Gigabit Ethernet, Channelized OC-48 dense OC-3 Packet over Synchronous
Optical Network (SONET) (PoS)
• Provides investment protection by using Cisco 7xxx Series port adapters on the Cisco Catalyst 6500 Series
FlexWAN Line Card, supporting T1/E1 through OC-48 WAN interfaces
• Chassis sizes range from 3-slot (Cisco Catalyst 6503 Switch) to 13-slot (Cisco Catalyst 6513 Switch)
High-Speed WAN Interfaces
• Provides high-speed WAN, ATM, and SONET interfaces compatible with other core routers
• Provides single-device management for WAN aggregation and for campus and metro connectivity
Maximum Investment Protection
• Highly flexible modular architecture supports multiple generations of modules that are fully interoperable
with each other in the same chassis
• Upgradable supervisor engines can add Layer 3 routing or forwarding capabilities over time
• Cisco IOS Software and Cisco Catalyst Operating System Software are supported across all supervisor engines
• Field-upgradable inline power for 10/100 Mbps and 10/100/1000 Mbps Ethernet modules for “pay as you go”
IP telephony and wireless computing
• A steady stream of new services modules adds to the deployment options
• Includes Cisco Catalyst 6500 Series network security, content switching, and voice capabilities
• Future modules will increase performance, port density, and include additional services
Ideal for Metro Ethernet WAN Services
• 802.1Q and 802.1Q tunneling (QinQ) providing point-to-point and multipoint Ethernet services
• EoMPLS in MPLS backbones for superior network scaling providing virtual LAN (VLAN) translation capability
• Layer 2 and Layer 3 QoS enables tiered Ethernet service offerings through rate limiting and traffic shaping
• Superior high-availability features include enhanced Spanning Tree Protocol, IEEE 802.1s, IEEE 802.1w, and
Cisco EtherChannel IEEE 802.3ad link aggregation
Replaceable fan tray
High Availability FeaturesGateway Load Balancing Protocol
Hot Standby Router Protocol
Multimodule EtherChannel
Rapid Spanning Tree
Multiple Spanning Tree
Per VLAN Rapid Spanning Tree
Rapid Convergence L3 Protocols
Maximum System Port Densities
10/100/1000 Ethernet576 ports, all support Inline Power
10/100 Fast Ethernet1152 ports, all support Inline Power
100-Base-FX288 ports
Gigabit Ethernet (GBIC)194 ports (2 ports provided on supervisor engine)
10 Gigabit Ethernet (XENPAK)32 ports
Integrated WAN Modules
FlexWAN (DS0 to OC-3)12 modules with 24 port adapters
OC-3 POS ports192
OC-12 POS ports48
Table 1 Catalyst 6500 Series at a Glance (Continued)
FeatureCatalyst 6500 Series
OC-12 ATM ports24
OC-48 POS/DPT ports24
PSTN Interfaces
Digital T1/E1 Trunk ports216
FXS Interfaces864
Advanced Services ModulesGigabit Firewall
Gigabit VPN
High Performance Intrusion Detection
Gigabit Content Switching Module
High Performance SSL Termination
Wireless LAN Services Module
Gigabit Content Services Gateway
DEPLOYMENT SCENARIOS
The Cisco Catalyst 6500 Series delivers secure converged services for campus, Internet service provider (ISP), metro
edge, and research and grid computing networks.
• Campus networks—Features 10/100 and 10/100/1000 autosensing modules that provide inline power
for the wiring closet, along with robust high availability, security, and manageability features; world-class
networking software; high-performance Gigabit and 10 Gigabit interface modules; and network management
for the distribution and core
Figure 2
Deployment Scenarios for Catalyst 6500 Series Switches in Campus Networks
• ISP network—Provides robust high-availability, security, and manageability features; world-class networking
software; high-performance Gigabit and 10 Gigabit interface modules; and network management for the most
demanding service provider networking environments requiring Multiprotocol Label Switching (MPLS),
Multicast, IP Version 6 (IPv6), an extensive set of WAN interfaces, and hierarchical traffic shaping.
Figure 3
Deployment Scenarios for Catalyst 6500 Series Switches in ISP Networks
Service Provider A
Si
Si
SiSi
SiSi
Si
Si
Internet
Corporate WAN
Service Provider B
Si
Si
SiSi
SiSi
Si
Si
• Metro edge—Features edge-, distribution-, and core-layer interfaces for point-to-point and multipoint Ethernet
services for metro and inter-metro network deployments with the following features:
– High-performance 10-Gigabit Ethernet uplinks
– 802.1Q tunneling
– Ethernet over MPLS (EoMPLS)
– Layer 2 and Layer 3 QoS
– Network Equipment Building Standards (NEBS) compliance
– Security, high availability, and manageability
The Cisco Catalyst 6500 Series is a modular system that can grow as customer requirements expand and technology
evolves, allowing customers to upgrade and reconfigure systems by addingnew modules, replacingexisting modules,
and adding and redeploying systems. Throughout the Cisco Catalyst 6500 Series, modules are:
• Configurable—Separately, simplifying the addition of new services
• Interoperable—In the same chassis, providing flexible design options
• Interchangeable—Among Cisco Catalyst 6500 Series systems, simplifying sparing and network expansion
• Hot-swappable—Without requiring a chassis to be powered off, providing fast upgrade and repair
• Upgradable—As newer modules come along, providing investment protection
Cisco Catalyst 6500 Series Hardware-Forwarding Architectures
Cisco Catalyst 6500 Series modules use one of three forwarding technologies, each having a different architecture
with different characteristics and capabilities:
• Cisco Express Forwarding (CEF)—Scaling to 30 Mpps, this technology uses a central CEF Cisco Express
Forwarding engine located on the supervisor engine’s policy feature card (PFC) daughter and CEF forwarding
tables located on the supervisor engine. The supervisor engine makes all forwarding decisions for all interface
modules centrally. For more information see How Cisco Express Forwarding Works.
• Accelerated Cisco Express Forwarding (aCEF)—Suited for high-performance enterprise environments, this
technology uses the aCEF engine and aCEF tables located on the interface module, along with the central CEF
engine located on the supervisor engine’s PFC daughter card and central CEF forwarding tables located on the
supervisor engine. The interface module makes high-volume forwarding decisions locally, and the supervisor
engine makes the rest of the forwarding decisions centrally. For more information see How Accelerated Cisco
Express Forwarding (aCEF) Works.
• Distributed Cisco Express Forwarding (dCEF)—Suited for the most demanding environments, this technology
uses the dCEF engine located on the interface module’sdistributed forwarding card (DFC) daughter card and the
dCEF table, a local copy of the supervisor engine’s central CEF table located on the interface module’s DFC. The
interface module makes all the forwarding decisions locally,andprovides maximum performance and scalability.
For more information see How Distributed Cisco Express Forwarding (dCEF) Works.
Cisco Catalyst 6500 Series Switching Architectures
Cisco developed the following switching architectures for Cisco Catalyst 6500 modules to allow platforms to scale
in any deployment:
• 32-Gbps bus—Allowing access to a central shared bus
• 256-Gbps switch fabric—Located on the switch fabric module (SFM)
• 720 Gbps switch fabric—Located on Cisco Catalyst 6500 Series Supervisor Engine 720
Cisco Catalyst 6500 Series interface modules support the following forwarding technology and switch fabric
combinations:
• Classic Interface Modules—Use the centralized CEF engine located on the supervisor engine’s PFC, connect
to the 32-Gbps switching bus only, and forward packets at up to 15 Mpps
• CEF256 Interface Modules—Use the centralized CEF engine located on the supervisor engine’s PFC, connect
to both the 256-Gbps fabric located on the supervisor engine with a single 8-Gbps full-duplex fabric connection
and the 32-Gbps switching bus, and forward packets at up to 30 Mpps
• dCEF256 Interface Modules—Use the distributed CEF engine on the DFC (located on the interface module),
connect to a 256-Gbps fabric located on the supervisor engine or a Switch Fabric Module with 16-Gbps
full-duplex fabric connections, and forward packets at up to 210 Mpps
• aCEF720 Interface Modules—Use the accelerated CEF engine on the DFC3 (located on the interface module),
connect to the 720-Gbps fabric located on the supervisor engine with 40-Gbps full-duplex fabric connections,
and forward packets at up to 400 Mpps, peak performance
• dCEF720 Interface Modules—Use the distributed CEF engine on the DFC3 (located on the interface module),
connect to the 720-Gbps fabric located on the supervisor engine with dual 20-Gbps full-duplex fabric
connections, and forward packets at up to 400 Mpps, sustained performance
Note: All Performance numbers refer to IPv4 forwarding.
CISCO CATALYST 6500 SERIES MODULE TYPES
Inthe Cisco Catalyst 6500 Seriesarchitecture, special-purpose modules perform separate tasks—allowing the feature
settoevolve quickly and allowing customers to addnewfeatures and enhanced performance by adding new modules.
The Cisco Catalyst 6500 Series features the following types of special-purpose modules:
• Supervisorengines—Performthecontrol functions and make the forwarding decisions for packets routed to other
networks
• Ethernet interface modules—Provide IEEE-standard receive and forwarding interfaces and forward packets
within the defined network
• WAN interface modules—Provide the receive and forwarding interface at the WAN edge
• Services modules—Support multigigabit security, application-aware Layer 4 through 7 content switching,
wireless LAN services, network management, and voice gateway services to traditional phones, fax machines,
PBXs, and the PSTN
• Switch Fabric Modules (SFMs)—Pass network traffic from interface module to the supervisor engine
or to another interface
Cisco Catalyst 6500 Series Supervisor Engines
The supervisor engines for the Cisco Catalyst 6500 Series support different forwarding technologies and achieve
different forwarding rates, depending on the configuration of the supervisor engine and the capability of a particular
interface module.
Supervisor engines can be configured with optional factory-installed daughter cards—a Policy Feature Card (PFC)
providing hardware-based Layer-2 forwarding, and a Multilayer Switch Feature Card (MSFC) providing Layer 3
capabilities.
A supervisor engine performs control operations centrally on processors that run either Cisco IOS Software or Cisco
Catalyst Operating System Software while special-purpose application-specific integrated circuits (ASICs) perform
bridging and routing (based on Cisco Express Forwarding), QoS markingand policing, and access control. The same
ASICs are used on the DFCs, daughter cards that can be installed on certain interface modules to distribute
forwarding in a decentralized fashion to achieve system forwarding rates of up to 400 Mpps (Table 2).
For additional information about the following Cisco Catalyst 6500 Series supervisor engines visit:
Centralized forwarding
only—engine located on
supervisor engine’s PFCx
daughter card
connection to modules
15 Mpps210 MppsSustained 400 Mpps— dCEF720
(optional)
(optional)
Centralized CEF—engine
located on supervisor
engine’s PFCx daughter
card;
Distributed CEF—engine
located on interface
module’s DFC daughter
card
16 Gbps per slot; Dualfabric connection to
modules at 8 Gbps full
duplex per channel
On MSFC2 daughter card
(optional)
PFC2 integratedPFC3 integrated
Enterprise core and data center;
service provider metro; wireless;
national research networks; grid
computing
Centralized CEF—engine located
on Supervisor Engine 720’s PFC3
daughter card;
Distributed CEF—engine located
on interface module’s DFC3
daughter card;
Accelerated CEF—engine located
on interface module’s ASICs
40 Gbps per slot;
Dual-fabric connection to
modules at 20 Gbps full duplex
per channel
Peak 400 Mpps—aCEF720
MSFC3 integrated
Ethernet Interface Modules
Cisco Catalyst 6500 Series Ethernet interface modules, designed for wiring closet, distribution and core, and data
center applications, as well as service provider and Metro Ethernet environments, use one of the following types
of Ethernet interfaces:
• 10/100 Mbps over copper—For wiring closets providing 10/100-Mbps performance with auto-negotiation
and support for IEEE 802.3af Power over Ethernet (inline power); up to 96 ports per module; includes Classic
and CEF256 interface modules.
• 10/100/1000 Mbps Gigabit over copper—For wiring closets and data centers providing 10/100/1000-Mbps
performance with auto-negotiation and support for IEEE 802.3af Power over Ethernet (inline power);
up to 48 ports/module; includes Classic, CEF256, and CEF720 interface modules.
• 100 Mbps over fiber—For secure wiring closets and long-haul router and switch interconnects; up to 24 ports
per module; includes Classic and CEF256 interface modules.
• 1 Gbps—For distribution and core layers and for data centers providing 1-Gbps performance; up to 48 ports
per module; includes Classic, CEF256, dCEF256, and CEF720 interface modules.
• 10 Gbps—For distribution and core layers providing 10-Gbps performance in 2-port or 4-port module; includes
CEF256, aCEF720, and dCEF720 interface modules.
The Cisco Catalyst 6500 Series and Cisco 7600 Series support several WAN interfaces using two technologies:
• FlexWAN module—Accepts up to two plug-in port adapters that provide numerous WAN/MAN protocols
and features
• Optical Services Module (OSM)—A dedicated line card that provides several interfaces, including OC-3/STM-1,
OC-12/STM-4, OC-48/STM-16, Channelized T3, Channelized OC-12/STM-4 PoS, Gigabit Ethernet, OC-12/
STM-4 ATM, and OC-48/STM-16 Dynamic Packet Transport (DPT)
FlexWAN Module
The FlexWAN module fits inside Cisco Catalyst 6500 Series and Cisco 7600 Series systems and uses Cisco 7200
and 7500 Series port adapters for a wide range of WAN/MAN protocols, including Frame Relay, ATM, PoS,
Point-to-Point Protocol (PPP), and High-Level Data Link Control (HDLC). Additionally, the FlexWAN module
provides media options such as clear channel and Channelized T1/E1, T3/E3, High-Speed Service Interface (HSSI),
OC-3 PoS, and ATM.
• For information about the Cisco Catalyst 6500 Series and Cisco 7600 Series FlexWAN Module, visit:
OSMs are line cards that provide high-speed WAN connectivity with onboard network processors for
distributed-line-rate IP service applications. For more information about OSMs, see the following data sheets:
• Cisco 7600 Series 4-, 8-, and 16-Port OC-3c/STM-1 PoS/SDH OSM:
The Cisco Catalyst 6500 Series offers an extensive set of services modules for Layer 4 through 7 applications,
including content services, network monitoring, security, and telephony.
Content Services Modules
• ContentServices Gateway (CSG)—Enables differentiatedbilling, user balance enforcement, andactivity tracking
for customer billing systems.For more information, visit: http://mobiletraining.cisco.com/csg/CSGe_ds_0211.pdf
• Content Switching Module (CSM)—Integrates advanced content switching into the Cisco Catalyst 6500 Series
to provide high-performance, high-availability load balancing of caches, firewalls, Web servers, and other
network devices. For more information, visit:
• Network Analysis Module (NAM 1 and 2)—Provides application-level visibility into the network infrastructure
for real-time traffic analysis, performance monitoring, and troubleshooting; performs traffic monitoring with
embedded Web-based traffic analyzer. For more information, visit:
• Firewall Services Module (FWSM)—The FWSM allows any port in the chassis to operate as a firewall port
and integrates stateful firewall security inside the network infrastructure. For more information, visit:
• IntrusionDetection System Module (IDSM and IDSM-2)—Takestrafficfromthe switch backplane at wire speed,
integrating IDS functions directly into the switch. For more information, visit:
• IPSec VPN Module (IVSM)—Provides infrastructure-integrated IPSec VPN services capable of 1.9-Gbps Triple
Data Encryption Standard (3DES) performance, 8000 active tunnels, and up to 60 tunnels per second. For more
information, visit:
• SSL Services Module (SSM)—Offloads processor-intensive tasks related to securing traffic with SSL accelerating
the performance and increasing the security of Web-enabled applications. For more information, visit:
• Communications Media Module (CMM)—Provides flexible, high-density T1 and E1 gateways, allowing
organizations to connect their existing time-division multiplexing (TDM) networks to their IP communications
networks, and providing connectivity to the PSTN. For more information, visit:
• Wireless LAN Services Module (WLSM)—Enables campus-wide fast secure WLAN roaming within and across
IP subnets, enhances WLAN security (e.g. user group segmentation and Catalyst integrated security services),
and simplifies WLAN deployment and management.
Switch Fabric Modules
Designed to support distributed forwarding for interface modules that have distributed forwarding capability,
the Cisco Catalyst 6500 Series SFM or SFM2, in combination with the Cisco Catalyst 6500 Series Supervisor Engine
2-MSFC2 and DFCs on interface modules, increases available system bandwidth from 32 to 256 Gbps. The
SFM/SFM2 supports the Cisco Catalyst 6500 CEF256 and dCEF256 interface modules.
Designed to support new interface modules with 720 Gbps forwarding capabilities, the Supervisor Engine 720’s
onboard switch fabric increases available bandwidth to 720 Gbps and enables packet forwarding rates up to
400 Mpps. By using auto-sensing and auto-negotiation, the Supervisor 720 switch fabric is fully interoperable with
the 8- and 16-Gbps switch fabric interconnections used by the CEF256 and dCEF256 interface modules. When a
CEF256 or dCEF256 interface module is detected, the switch fabric will automatically connect those modules by
offering 8-16 Gbps of bandwidth to each module, as applicable.
How Cisco Express Forwarding Works
Cisco Express Forwarding (CEF) is a Layer 3 technology that provides increased forwarding scalability
and performance to handle many short-duration traffic flows common in today’s enterprise and service provider
networks. Tomeetthe needs of environments handling large amounts of short-flow,Web-based,orhighly interactive
types of traffic, CEF forwards all packets in hardware, and maintains its forwarding rate completely independent
of the number of flows going though the switch.
On the Cisco Catalyst 6500 Series, the CEF Layer 3 forwarding engine is located centrally on the supervisor engine’s
PFC2 or PFC3—the same device that performs hardware-based Layer 2 and 3 forwarding, ACL checking, QoS
policing and marking, and NetFlow statistics gathering.
Using the routing table that Cisco IOS Software builds to define configured interfaces and routing protocols,the CEF
architecture creates CEF tables and downloads them into the hardware-forwarding engine before any user traffic
is sent through the switch. The CEF architecture places only the routing prefixes in its CEF tables—the only
information it requires to make the Layer 3 forwarding decisions—relying on the routing protocols to do route
selection. By performing a simple CEF table lookup, the switch forwards packets at wire-rate, independent
of the number of flows transiting the switch.
CEF-based forwarding requirements: Requires a Cisco Catalyst Supervisor Engine 2 or Catalyst Supervisor
Engine 720.
How Accelerated Cisco Express Forwarding (aCEF) Works
Accelerated Cisco Express Forwarding (aCEF) technology uses two forwarding engines working together
in a master-slave relationship to accelerate high-rate traffic flows through the switch—a central CEF engine located
on the Supervisor Engine 720’s PFC3 and a scaled-down distributed aCEF engine located on the interface module.
The central PFC3 makes the initial forwarding decision, with the aCEF engine storing the result and making
subsequent packet-forwarding decisions locally. aCEF forwarding works like this:
• As in standard CEF forwarding, the central PFC3 is loaded with the necessary CEF information before any user
traffic arrives at the switch.
• As traffic arrives on an aCEF720 interface module, the aCEF engine inspects the packet, and finding that
no specific packet forwarding information exists, consults the central PFC3.
• The PFC3 makes a hardware-based forwarding decision for this packet (including Layer 2, Layer 3, ACLs,
and QoS).
• The aCEF engine stores the forwarding decision results and makes forwarding decisions locally for subsequent
packets based on packet-flow history.
• The aCEF engine handles hardware-based Layer 2 and Layer 3 forwarding, ACLs, QoS marking, and NetFlow.
• The central PFC3 processes any forwarding decisions that the interface module’s aCEF engine cannot handle.
aCEF-based forwarding requirements: Requires a Cisco Catalyst Supervisor Engine 720 and aCEF720 (WS-X67xx)
class modules.
How Distributed Cisco Express Forwarding (dCEF) Works
With Distributed Cisco Express Forwarding (dCEF), forwarding engines located on the interface modules make
forwarding decisions locally and in parallel, allowing the Cisco Catalyst 6500 Series to achieve the highest
forwarding rates in the industry. With dCEF, forwarding occurs on the interface modules in parallel and system
performance scales up to 400 Mpps—the aggregate of all forwarding engines working together.
Using the same ASIC engine design as the central PFCx, DFCs located on the interface modules forward packets
between two ports, directly or across the switch fabric, without involving the supervisor engine. With the DFC, each
interface module has a dedicated forwarding engine complete with the full forwarding tables. dCEF forwarding
works like this:
• As in standard CEF forwarding, the central PFC3 located on the supervisor engine and the DFC engines located
on the interface modules are loaded with the same CEF information derived from the forwarding table before
any user traffic arrives at the switch.
• As a packet arrives at an interface module, its DFC engine inspects the packet and uses the information
in the CEF table (including Layer 2, Layer 3, ACLs, and QoS) to make a completely hardware-based forwarding
decision for that packet.
• The dCEF engine handles all hardware-based forwarding for traffic on that module, including Layer 2
and Layer 3 forwarding, ACLs, QoS policing and marking, and NetFlow.
• Because the DFCs make all the switching decisions locally, the supervisor engine is freed from all forwarding
responsibilities and can perform other software-based functions, including routing, management, and
network services.
5. Line Card Takes Frame from SFM and Places on Its Own
Local Bus
• The DFC Provides Destination Port and Exit Port
• Packet is Queued, QoS Applied and Packet Exits Line Card
4. SFM Receives Packet, Examines Tag,
Makes Switching Decision
• Determines Outgoing Port on Line Card and
Switches Packet to Specified Line Card
dCEF-based forwarding requirements: Requires a Cisco Catalyst Supervisor Engine 720 for the dCEF720 interface
module; requires either a Catalyst Supervisor Engine 720 or a Catalyst Supervisor Engine 2-MSFC2 and a SFM
for the dCEF256 interface module.
CISCO IOS SOFTWARE AND CATALYST OPERATING SYSTEM SOFTWARE
Cisco Catalyst 6500 Series switches offer two operating modes of software, the Cisco Catalyst Operating System
Software with optional Cisco IOS Software on the MSFC, and Cisco IOS Software for the supervisor engines. Each
operating mode can be deployed at different hierarchies of the network, depending on the network’s requirements.
These software solutions for the Cisco Catalyst 6500 Series switches provide full Layer 2 through 4 switching
and routing functions at high performances.
Today, either of these operating modes can be deployed in an entire network environment, or the operating modes
canvarywithin an environment to meet different requirements. One operating modeisnotareplacement for another,
but is recommended for varying feature requirements.
• Cisco IOS Software for the Cisco Catalyst 6500 Series
• Cisco Catalyst Operating System Software with optional Cisco IOS Software on the MSFC
Cisco IOS Software for the Cisco Catalyst 6500 Series
Cisco IOS Software for the Cisco Catalyst 6500 Series supervisor engines requires the MSFC on the supervisor
engine. It provides integrated multilayer functions in a single image and is optimized for core, distribution, Internet
access, and data center deployments. Cisco IOS Software combined with the performance of the Cisco Catalyst 6500
Series offers the necessary features for a high-performance Layer 3-enabled deployment, including support
for a distributed architecture with the ability to scale the switch to 400 Mpps throughput. Additionally, Cisco IOS
Software provides operational ease of use by offering a single image and configuration file to be deployed across
the Cisco Catalyst 6500 Series switches.
Cisco Catalyst Operating System Software with Optional Cisco IOS Software on the MSFC
Cisco Catalyst Operating SystemSoftware is the premier software for the wiring closet on Cisco Catalyst 6500 Series
switches offering high-performance Layer 2 forwarding. It is optimized to deliver the high availability, enhanced
security,and integrated inline powersupport necessary for mission-criticalwiring closet deployments. Cisco Catalyst
Operating System Software can also be extended to the distribution and core layers of the network when coupled
withCisco IOS Software on the MSFC, providing robustandadvanced Layer 3 and Layer 4 functions.Thisoperating
mode is often referred to as “hybrid mode.” See Table 3 for software and hardware deployment options.
Table 3 Software and Hardware Deployment Options
Network
Performance
Highest-Performance
Cisco IOS Software
End-to-End
Higher-Performance
Mixed Operating
System
High-Performance
Cisco Catalyst
Operating System
Software End-to-End
Hybrid mode;
Supervisor Engine
2-MSFC2; CEF256
and Classic interface
modules
Cisco IOS Software and Cisco Catalyst Operating System Software Shared Features
All Cisco Catalyst 6500 Series supervisor engines, including the new Supervisor Engine 720, take advantage of
the industry-leading software and management capabilities of the Cisco Catalyst 6500 Series. Customers can apply
theirknowledge of Cisco CatalystOperating System Software, Cisco IOSSoftware, CiscoWorks,and other graphical
and Web-based network management tools without the need to learn a new command-line interface (CLI)
or management system.
Cisco Catalyst 6500 Series chassis can be deployed in the wiring closet, the distribution and core layers, the data
center, and the WAN edge, providing the power and features required for end-to-end deployment for the enterprise
campus, the ISP network, metro, and research computing networks.
Chassis Applications
The Cisco Catalyst 6500 Series provides a selection of chassis, including 3-, 6-, 9-, and 13-slot models with slots
arranged horizontally and a 9-slot model with slots arranged vertically, with front-to-back airflow. Typical
applications for Cisco Catalyst 6500 Series chassis include:
• 3-slot chassis—Low-density, wiring-closet chassis sharing interface modules and supervisor engines with larger
chassis for common sparing; low-density, high-performance specialized services modules chassis for network
security and management; low-density, high-end chassis providing connectivity to the WAN edge
• 6- and 9-slot chassis—Traditional chassis for the wiring closet, distribution and core, data center, and WAN edge
• 13-slot chassis—Highest-capacity chassis for Ethernet connectivity, with slots to spare for services modules
providing network security and management
Chassis Configuration
All Cisco Catalyst 6500 Series chassis are NEBS Level-3 compliant and use common power supplies. The 6- and 9slot chassis require a 1000W or 1300W power supply and the 13-slot chassis requires a 2500W or 4000W power
supply. The 3-slot chassis requires a 950W power supply. When ordering a Cisco Catalyst 6500 Series switch,
use the online Cisco Dynamic Configuration Toolto assist you in selecting the chassis, power supplies, power cables,
and fan trays that will meet your requirements. The tool is available at: http://www.cisco.com/appcontent/apollo/
configureHomeGuest.html
Power
AllCiscoCatalyst6500chassis hold up to two load-sharing, fault-tolerant, hot-swappable AC or DC power supplies.
Only one supply is required to operate a fully loaded chassis. If a second supply is installed, it operates in a loadsharing capacity. The power supplies are hot-swappable—a failed power supply can be removed without powering
off the system.
Cisco Catalyst 6500 Series switch power supplies are available in the following power ratings:
• 950W AC input (Cisco Catalyst 6503 chassis)
• 1400W AC input (Cisco Catalyst 6503 chassis)
• 1000W AC input
• 1300W AC and DC input
• 2500W AC and DC input
• 3000W AC input
• 4000W AC input
Table 4 outlines the power requirements and heat dissipation for the different models of power supplies available
for the Cisco Catalyst 6500 Series switch.
Table 9 provides environmental information for Catalyst 6500 Series Chassis.
Table 9 Catalyst 6500 Series Chassis Environmental Conditions
ParameterPerformance Range
Operating temperature32 to 104 F (0 to 40 C)
Storage temperature–4 to 149 F (–20 to 65 C)
Relative humidity10 to 90%, noncondensing
Operating altitude3000 meters
Mean time between failure (MTBF)7 years for system configuration
Table 10 Catalyst 6500 Series Specifications (Continued)
SpecificationNumberDescription
Cisco VLAN Director Software
CISCO-VLAN-Membership-MIB
CISCO-VTP-MIB
Cisco Workgroup MIB
SPAN and Remote SPAN (RSPAN)
Hot Standby Routing Protocol (HSRP)
HC-RMON
HTML/HTTP management
NetFlow v1 export
RMON HP Open View
SMON-MIB
Standard Cisco IOS Software security capabilities: passwords and TACACS+
Telnet client
Telnet management
Text-based CLI
Web-based GUI Management Tools (CiscoWorks)
Security1492Terminal Access Controller Access Control System Plus (TACACS+)
2138Remote Authentication Dial-In User Service (RADIUS) authentication
ACLs for Layers 2, 3, 4, and 7
Access profiles on all routing protocols
Access profiles on all management methods
Media Access Control (MAC) address security/lockdown
Network Address Translation (NAT)
Network login (including DHCP/RADIUS integration)
RADIUS accounting
RADIUS per-command authentication
Secure Copy Protocol (secure file transfer)
Technical Support Services
Whether your company is a large organization, a commercial business, or a service provider, Cisco is committed
to maximizing the return on your network investment. Cisco offers a portfolio of technical support services to help
ensure that your Cisco products operate efficiently, remain highly available, and benefit from the most up-to-date
system software.
The Cisco Technical Support Services organization offers the following features, providing network investment
protection and minimal downtime for systems running mission-critical applications:
• Provides Cisco networking expertise online and on the telephone
• Creates a proactive support environment with software updates and upgrades as an ongoing integral part ofyour
network operations, not merely a remedy when a failure or problem occurs
• Makes Cisco technical knowledge and resources available to you on demand
• Augments the resources of your technical staff to increase productivity
• Complements remote technical support with onsite hardware replacement
• Cisco Technical Support Services include:
• Cisco SMARTnet support
• Cisco SMARTnet Onsite support
• Cisco Software Application Services, including Software Application Support and Software Application Support
plus Upgrades
For more information, visit: http://www.cisco.com/en/US/products/svcs/ps3034/serv_category_home.html
Additional Cisco Catalyst 6500 Series Information
For additional information about the following data sheets that describe Cisco Catalyst 6500 Series, supervisor
engines, interface modules, SFM, and services modules, visit: http://www .cisco.com/en/US/products/hw/switches/ps708/
products_data_sheets_list.html
• Cisco Catalyst 6500 Series Supervisor Engine 1A and Supervisor Engine 2 Data Sheet
• Cisco Catalyst 6500 Series Supervisor Engine 720 Data Sheet
• Cisco Catalyst 6500 Series 10/100 and 10/100/1000 Ethernet Interface Modules Data Sheet
• Cisco Catalyst 6500 Series Gigabit Ethernet Interface Modules Data Sheet
• Cisco Catalyst 6500 Series 10 Gigabit Ethernet Interface Modules Data Sheet
• Cisco Catalyst 6500 Series FlexWAN Interface Modules Data Sheet
• Cisco Catalyst 6500 Series Switch Fabric Interface Modules Data Sheet
• Cisco Catalyst 6500 Series Content Services Module Data Sheet
• Cisco Catalyst 6500 Series Firewall Services Module Data Sheet
• Cisco Catalyst 6500 Series Network Application Module (NAM) Data Sheet
• Cisco Catalyst 6500 Series Intrusion Detection (IDS) Module Data Sheet
• Cisco Catalyst 6500 Series IPSec VPN Services Module Data Sheet
• Cisco Catalyst 6500 Series SSL Services Module Data Sheet
Cisco Systems, Inc.
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San Jose, CA 95134-1706
USA
www.cisco.com
Tel: 408 526-4000
800 553-NETS (6387)
Fax: 408 526-4100
European Headquarters
Cisco Systems International BV
Haarlerbergpark
Haarlerbergweg 13-19
1101 CH Amsterdam
The Netherlands
www-europe.cisco.com
Tel: 31 0 20 357 1000
Fax: 31 0 20 357 1100
Cisco Systems has more than 200 offices in the following countries and regions. Addresses, phone numbers, and fax numbers are listed on the
Cisco Web site at www.cisco.com/go/offices
Argentina • Australia • Austria • Belgium • Brazil • Bulgaria • Canada • Chile • China PRC • Colombia • Costa Rica • Croatia • Cyprus
Czech Republic • Denmark • Dubai, UAE • Finland • France • Germany • Greece • Hong Kong SAR • Hungary • India • Indonesia • Ireland
Israel • Italy • Japan • Korea • Luxembourg • Malaysia • Mexico • The Netherlands • New Zealand • Norway • Peru • Philippines • Poland
Portugal • Puerto Rico • Romania • Russia • Saudi Arabia • Scotland • Singapore • Slovakia • Slovenia • South Africa • Spain • Sweden
Switzerland • Taiwan • Thailand • Turkey • Ukraine • United Kingdom • United States • Venezuela • Vietnam • Zimbabwe
All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company.
(0403R)203178_ETMG_SH_05.04
Americas Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
www.cisco.com
Tel: 408 526-7660
Fax: 408 527-0883
Asia Pacific Headquarters
Cisco Systems, Inc.
168 Robinson Road
#28-01 Capital Tower
Singapore 068912
www.cisco.com
Tel: +65 6317 7777
Fax: +65 6317 7799
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