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© 2007 Cisco Systems, Inc. All rights reserved.

Catalyst 4500 E-Series with CenterFlex

TechnologyTechnical Deep Dive

Dave Dhillon—Product Marketing Manager

Richard Licon—Technical Marketing Engineer


Presenters

Dave Dhillon

Product Marketing Manager

Richard Licon

Technical Marketing Engineer


Agenda

Catalyst 4500 Centralized Architecture

Catalyst 4500 E-Series Overview

Technical Deep Dive

– TCAMS

– QoS

– HA/Management

– Multicast


Cisco Catalyst 4500 Architecture

Cisco Catalyst 4500 is a shared memory switch

All forwarding, queuing, security is implemented on the Supervisor

The individual line cards are considered to be ‗transparent‘

Contain simple ―stub‖ ASICs and the PHY‘s

No local switching

Each classic line card has 6 Gbps (full duplex) connections to the central forwarding engine

E-Series line cards have a 24 Gbps (full duplex) connection to the central forwarding engine

Forwarding Engine

FFE or VFE

Line

CardLine

Card

Line

Card

Line

Card

Line

Card

CPU and DRAM

Cisco Catalyst 4500 Utilizes a Centralized Architecture

Shared Memory

Fabric (PPE or IPP)


Simple Line Card Design

=High MTBF

Low Latency

Dynamic Resources

Benefits of a Centralized Architecture

Low PowerDraw

Scalable

InvestmentProtection

Flexible

High Availability


Evolution of Centralized Switching Technology

1999

Sup I/II18 MppsL2 Only

2002

Sup II Plus to Sup V48-72 Mpps

L2/L3

2007

Sup 6-E250 Mpps

L2/L3IPv6

2004

Sup V-10GE102 Mpps

L2/L310Gig

14X Increase Since „99


Cisco Catalyst 4500 Series High Performance Extension

Introducing Cisco Catalyst 4500 E-Series

E-Series Chassis

E-Series Line Cards

Supervisor 6-E with CenterFlex Technology


Innovations Enabled by Supervisor 6-E Centralized ASICs

What Is CenterFlex Technology?

Catalyst 4500 E-Series

19 New Patents

Centralized

Highest centralized performance

Low latency/low power draw

High availability

Simplified operations

Flexible

Mix and match new and classic line cards

Forward/backward compatibility

User configurable queuing resources

Dynamic QoS, security, and IPv6 resource allocation

Higher services capacity

CenterFlexTechnology


Supervisor 6-E Feature Details

Centralized 320 Gbps, 250 Mpps, L2/3/4

IPv4 (250Mpps) and IPv6 (125Mpps) in HW

Dual wire speed 10GbE (X2) ports or four SFP (twin gig ships standard)

Will supports full redundancy with SSO/NSF/ISSU (7R and 10R)

Four active 10GbE ports (2:1) or eight active SFPs (via twin gig) in redundant mode

256K FIB entries, 128K security/QoS, 512MB DRAM (upgradeable to one gig)

Cat4503, 6, 7R, and 10R support (E-Series required for 24Gig/slot)

E-Series and classic line card support (no performance degradation if mixed)


19 New Patents



Enhanced Layer 3 Supervisors

Cisco Catalyst 4500 Supervisors

Supervisor V-10GE

Supervisor V

Supervisor IV

Supervisor II+10GE

Supervisor II+

Supervisor II+TS

Supervisor 6-E

Basic Layer 3 Supervisors

PE

RF

OR

MA

NC

E

64Gbps

320Gbps


Investment Protection & Enhancement

L2 Only

2 Tx Q‘s ( 136 packets)

Box Wide L2 Qos

Port/Telnet Security

L2 to L4 Up to 8 dynamic Tx Q‘s ( 8K packets) Per Port L2-L4 classification Port Security/DHCP Snoop/MiTM etc L2 to L7 ACL‘s uRPF Policing Ipv6

Catalyst 4506 with Supervisor II

Catalyst 4506 with Classic Supervisors or Supervisor 6-E


WS-X4606-X2-E

WS-X4648-RJ45V+E

Cisco Catalyst 4500 High Performance E-Series Line Cards

WS-X4648-RJ45V-E

48-Port 10/100/1000 Premium PoE

24 gig per slot—2:1 oversubscribed

802.3af PoE standard on all E-Series TX cards

Supports up to 30 watts per port (SW upgrade)

6-Port 10 Gigabit Ethernet

24 gig per slot—2.5:1 oversubscribed

12 ports 1 GE line rate

Supports X2 twin gig module (optional)

48-Port 10/100/1000 PoE

24 gig per slot—2:1 oversubscribed

802.3af PoE standard on all E-Series TX cards

IEEE 802.11n 20W—Mid 2008

http://ccc-sjc-001/launches/campcom/Photography/K5 photography directory/MKH02069.jpg



Cisco Catalyst 4500 Ethernet Line Cards

GE/10GE Ethernet

6-port 10GE

6-port (GBIC)

6-port (SFP or 10/100/1000 PoE)

18-port (GBIC)

24- or 48-port 10/100/1000 (RJ-45) with or without PoE

48-port (SFP)

Fast Ethernet

48-port 10/100 (RJ-45 or RJ-21) with or without PoE

24-port 10/100 (RJ-45) with or without PoE

24- or 48-port 100-FX

48-port 100BX-D (Bidirectional)

48-port (SFP)

Fiber Uplinks

2-port GE (Supervisor)

2-port 10 GbE (Supervisor)

32-port 10/100 + 2-port GE

Classic E-SeriesOver

20 Catalyst 4500Line Cards




Cisco Catalyst 4500 E-Series ChassisCatalyst 4500 E-Series With CenterFlex

Available in 3, 6, 7 (redundant) and 10 slot (redundant)

Up to 384 10/100/1000 PoE ports or 34 10GbE ports

Enables high performance E-Series line cards

Compatible with all shipping Supervisors, line cards and power supplies


Cisco Catalyst 4500 E Chassis

Supports up to 24 Gbps per slot

Supports E-Series and classic linecards

Supports classic power supplies

Improved out-of-band management

Supervisor slots in middle of redundant supervisor chassis

One Gbps Supervisor-to-Supervisor (S2S) link


Catalyst 4500 Compatibility and FlexibilityMaximizing Investment

E Series Chassis

Supervisor 6-E

Classic Supervisors

E-Series Line Cards

Classic Line Cards

Existing Catalyst 4500 Power Supplies

Mix and Match E Series and Classic


10GE

8:1

Stub

RJ-45

RJ-45

RJ-45

RJ-45

CPU

Bridge

FFEPPE NFL

CPU

10GE

RJ-45

RJ-45

RJ-45

RJ-45

10Gig X2

SERDES 1

8:1

Stub

RJ-45

RJ-45

RJ-45

RJ-45

RJ-45

RJ-45

RJ-45

RJ-45

SERDES 6

10Gig X2

Classic SupervisorClassic Line Card

6 S

ER

DE

S =

6 G

ig

Octal

SERDES

Octal

SERDES

Cisco Catalyst 4500 Classic ArchitectureCentralized Forwarding: 6 Gbps per Slot


10GE

RJ-45

RJ-45

VFEIPP

10GERJ-45

RJ-45

10Gig X2

RJ-45

RJ-45

RJ-45

RJ-45

SERDES

10Gig X2Supervisor 6-EE-Series Line Card

4 X

GS

tub

= 2

4 G

ig

2:1

XGStub

2:1

XGStub

2:1

XGStub

2:1

XGStub

SERDES

SERDES

SERDES

CPU

BridgeCPU

Cisco Catalyst 4500 E-Series ArchitectureCentralized Forwarding: 24 Gbps per Slot

L2

Lookup

L3

Lookup

Input

TCAM

Output

TCAM


Switching Module ArchitectureIEEE 802.3 Flow Control (Blocking GE Ports)

802.3x is an IEEE standards-based mechanism used to control data flow

802.3x utilizes pause frames (DA MAC 01-80-C2-00-00-00-0F) to signal flow control between end station and switch

Flow control operation steps

1. Data flows to switch

2. Switch congested so ―pause‖ frame sent

3. End station waits required time before sending

Cisco Catalyst 4500 supervisors support both Tx and Rx pause frames

cr7-4507-1# show interface GigabitEtherent 4/7 counters detail

<output skipped>

Port Rx-No-Pkt-Buff RxPauseFrames TxPauseFrames PauseFramesDrop

Gi4/7 0 35648 4854 0

1. Data Flows to Switch

2. Switch Congested “Pause” Frame Sent

3. End Station Waits Required Time Before SendingSiSi


Catalyst 4500 Sup 6-E Technical Deep Dive

Cisco Catalyst 4500 E-Series: CenterFlex



TCAM Flexibility

Enhanced QoS Flexibility

HA/Management

Multicast

Investment Enhancement and Protection


Catalyst 4500 Offers Higher Feature Capacity

256,000 Forwarding

Entries

Competitive Modularup to 10,000 Entries

Forwarding/QoS/Security

Stackable Switches1,000 EntriesForwarding/

QoS/Security

128,000QoS/Security

Entries

If TCAMs Get Over Subscribed, Packets Get

Software Processed

Catalyst 4500-E

Dedicated hardware capacity for forwarding

Dedicated hardware capacity for features

Ample headroom for future requirements

Line rate performance for security and QoS


Scalable and Flexible Services Capacity

Challenge

Solution

Benefits

Two fold services capacity increase

Flexible TCAM resources

Scale services as needed

Service deployment flexibility

Optimization for QoS/security policies

Investment enhancement and protection

Increasing Services in the Access—

VoIP/Video/Security/Telepresence

Classic Supervisors

128k

SecurityQoS

Dedicated Resources

Flexible Resources

32kQoS

32kSecurity

Supervisor 6-E with CenterFlex


CenterFlex Enabled TCAM 4 Flexibility

Output Classification CAM (OCC)

64K

Input Classification CAM (ICC)

64K

Security

QoS

Security

QoS


AddressTable

(TCAMS)

AddressTable

(TCAMS)

Dynamic Allocation


160 Bit Wide

320 Bit Wide

IPv4 and IPv6

320 Bit Wide

160 Bit Wide

IPv4

IPv6

Classic IPv4/IPv6 Allocations

Cisco Catalyst 4500 E-Series

Centralized architecture allows for easier upgrades

Example: TCAM 4-based hardware lookups provide dynamic table sizing for IPv4 to IPv6 migration

Upgrade the supervisor in a classic 4500 chassis to get IPv6 in HW and other capabilities

IPv4 and IPv6 Support


CenterFlex Enabled Dynamic Configuration

Optimized Space Allocation for IPv4 and IPv6 Configurations!

Hardware Support for IPv6

320-Bit Wide

160-Bit Wide

80-Bit WideIP FIB Entries TCAM Model Entries/Block

Unicast IPv4 80-Bit Mode 4000

uRPF IPv4 80-Bit Mode 4000

Multicast IPv4 160-Bit Mode 2000

Unicast IPv6 160-Bit Mode 2000

uRPF IPv6 160-Bit Mode 2000

Multicast IPv6 320-Bit Mode 1000

Block 0

Block 30

Block 31

.

.

.

.

.

.



Catalyst 4500 E-Series With CenterFlex



TCAM Flexibility


HA/Management

Multicast


Cisco Catalyst 4500 E-Series: CenterFlex


4/5 Class Model

Scavenger

Critical Data

Call Signaling

Best Effort

Real Time

Time

How Many Classes Does the Campus Need?Expanding the Number of Classes of Service over Time


4/5 Class Model

Scavenger

Critical Data

Call Signaling

Best Effort

Real Time

8-Class Model

Critical Data

Video

Call Signaling

Best Effort

Voice

Bulk Data

Network Control

Scavenger

Time



4/5 Class Model

Scavenger

Critical Data

Call Signaling

Best Effort

Real Time

8-Class Model

Critical Data

Video

Call Signaling

Best Effort

Voice

Bulk Data

Network Control

Scavenger

11-Class Model

Network Management

Call Signaling

Streaming Video

Transactional Data

Interactive-Video

Voice

Best Effort

IP Routing

Mission-Critical Data

Scavenger

Bulk Data

Time



Catalyst 4500 Sup 6-E Enhanced Queuing

Supervisor II+, II+10GE, IV, V, V-10GE

Four queues (1P3Q1T)

Fixed queue size

Q3 is priority queue

Supervisor 6-E

Configurable up to eight queues (1P7Q2T) with configurable thresholds

Queue size configurable up to 8184 packets per queue (100K pool)

Class-based queuing

User configurable priority queue

Flexible Resources


Four Static Tx Queues per Port

Eight User ConfigurableTx Queues per Port

Classic Supervisors

Sup 6-E

MQC Compliant


Sup 6-E Classification

Sequential Classification:

Allows All Values Marked or Remarked Upon Ingress to be Matched Based on the Marked or Remarked Value at Egress

Ingress QoS

ActionsEgress QoS

Actions

Ingress

Marking

Mark to CoS 0

Ingress

Classification

Match CoS 5Match CoS 0 for

Default Class

Egress

Classification

Ingress

Classification

Ingress

Policing

IngressMarking

Conditional

Ingress

Marking

Unconditional

Egress

ClassificationEgress

Marking

Unconditional

Egress

Policing

CoS 5 CoS 0 CoS 0

Default

Class

Queue

EgressMarking

Conditional

TXRX


Sup 6-E Policing

16K single rate two color policer

8K single rate three color policer

8K two rate three color policer

Policer accuracy ± 0.75%

Entire packet length including L2 header and tag are counted as packet length

Note: Policers in Previous Supervisors Were Allocated as 8k Ingress and 8k Egress; The Sup6-E Allows You to Configure Policers in 2k Allotments as Either Ingress or Egress



Cisco Catalyst 4500 SeriesCatalyst 4500 E-Series With CenterFlex



TCAM Flexibility


HA/Management

Multicast



Delivering Seamless Software Upgrade Full Image In Service Software Upgrade (ISSU)

Comprehensive upgrade solution

deployment of new features,

hardware, services and maintenance fixes

Virtually eliminate network disruption for software upgrade

Eliminate planned downtime windows

Seamless to end users

Upgrades can be scheduled at anytime—don‘t have to plan an outage

PSIRT Security Fixes

New Line Card

New IoS

Software Features

Three Releases

per Year

All Types of

Bug-Fixes

Add New Power Supply

ISSU Allows Full IOS Image Upgrade Without Taking Switch Out of Service


GLBP

Each member of a GLBP redundancy group owns a unique virtual MAC address for a common IP address/default gateway

Benefits:

Equal bandwidth usage

Only half of the users fail over during fault

Load balancing

10.88.1.0/24

.5.4

.1 .2

vIP 10.88.1.10GLBP 1 ip 10.88.1.10

vMAC 0000.0000.0001

GLBP 1 ip 10.88.1.10

vMAC 0000.0000.0002

ARPs for 10.88.1.10

Gets MAC 0000.0000.0001

ARPs for 10.88.1.10

Gets MAC 0000.0000.0002A B

R1 R2

ARP Reply

Classic Supsand Sup 6-E


Supervisor 6-E: FAT File System

New Supervisors Will Support FAT Filesystem on Storage Devices (Bootflash, Compact Flash, USB*); It Means:

CF cards won‘t be interchangeable between Sup6-E and classic supervisors

Since FAT is understood by PCs and other computing devices, CF and USB flash devices will be compatible with PC so it would be easier to move files around

*Not supported in first release of Sup6-E software


Supervisor 6-E: FAT File System

usb0:

usb0:

cat4500-entservicesk9-mz.122-31.SG.bin13163624 Jun 23 2006






TCAM Flexibility


HA/Management

Multicast



Multicast Capabilities

Comprehensive L3 Multicast

SupIV,V,V-10GE Sup6-E

IPv4 IPv4 IPv6

OSPFv3 OSPFv3 OSPFv3

EIGRP EIGRP EIGRP

MSDP MSDP MLDv1/MLDv2

IGMP v1,2,3 IGMP v1,2,3 PIM-SSM

IGMP Snooping IGMP Snooping PIM-SM

PIM-SSM PIM-SSM

Note: Most Operating Systems Use MLDv1, Microsoft Vista Now Uses MLDv2. SSM Is Supported in IPv6/IPv4.

All Done inHardware






TCAM Flexibility


HA/Management

Multicast



Cisco Catalyst 4500 SeriesEvolutionary Centralized Architecture

1999 2002

10/100/1000

2004 2007 2012

Layer 2

PoE L2/3/4

10 GbESSO

NAC/NSF

ISSU

Continued InnovationServices and Performance

Same Line Cards

E-Series250Mpps

CISF

18Mpps 48Mpps 102Mpps


Why Invest in the Cisco Catalyst 4500 Series?

Most Widely Deployed Modular Ethernet Switch

Cisco Catalyst 4500 Series

Strategic Cisco Platform

Evolutionary Architecture

Backward Compatibility

Continued R&D

Extended Lifecycle

Maximum Investment Protection


Want to Know More?

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