Cisco Catalyst Series Switches

Mauricio Martínez Systems Engineer, CCIE 17838

C97-373923-01 © 2007 , Inc. All rights reserved. Cisco Confidential 1 Agenda

Cisco ® Catalyst ® Switches Overview

Cisco Catalyst 500, 2960, 3560-E, 3750-E

Intelligent Services

Summary

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 2 SMB Top of Mind and Network Relevance

Protected … and Do All That Collaborative with Limited Staff and Budget? How do I How Can Protect We be More My Assets? Productive ?

How Can I How Can I Be Increase My More Adaptive ? Profitability ?

Connected Responsive

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 3 Key Network Considerations

 Simplicity and ease-of-use  Increase network security  Network transparency— make technology easier to deploy and control  Pressure to reduce total cost of network ownership –Manage more with less Peace of Mind— (or individually) “The Networking Infrastructure Will Always –Future-proofed for the Be Available and Will next technology wave Always Work” –Expandable for future growth

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 4 The Role of the Network

Safe, Secure and Reliable Wired/Wireless Connections Connectivity

Networked Reliable and Efficient Application Delivery Organization Access to That’s Easy to Deploy Applications

Cost Savings in Terms of Time, Staff and Network Budget Convergence

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 5 Catalyst Switching Portfolio

Distribution/Core

Catalyst 6500

Catalyst 4500

Datacenter Access

Catalyst 4948

Blade Switches Wiring Closet Catalyst 6500 Catalyst 4500 Catalyst 3750-E Catalyst 3560-E and Catalyst 3750 Catalyst 2960 and Catalyst 3560 Catalyst Express Features, Scalability, Longevity Scalability, Features, Catalyst 2960

Small Medium-sized Large

Number of Employees/Density

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 6 Most Complete Line of Fixed Configuration LAN Products

Full Layer 3 Routing Cisco Catalyst 4948  10/100/1000 + 2 10GE wire speed switching  Rack-optimized server switching  Jumbo frame support  Dual, hot swappable, internal power supplies  Hot swappable fan tray Cisco Catalyst 3750-E and Catalyst 3750  Stackable 10/100 and GE configurations + 2 10GE  Cisco StackWise™ Plus and StackWise technology  Enterprise-class intelligent Layer 3/4 services  Modular power supply with 3750-E  PoE configurations with up to 15.4W on all 48 ports Cisco Catalyst 3560-E and Catalyst 3560  10/100 and GE configurations + 2 10GE  Enterprise-class intelligent Layer 3/4 services  Modular power supply with 3560-E  PoE configurations with up to 15.4W on all 48 ports Layer 2 Intelligent Services Cisco Catalyst 2960  10/100 and 10/100/1000 Layer 2 switching Price-Performance  8, 24, and 48 port configurations with dual-purpose Gig uplinks  PoE configurations with up to 15.4W up to 24 ports  Entry level LAN Lite IOS and enhanced LAN Base IOS for intelligent services GUI-Managed Cisco Catalyst Express 500  Low-density, standalone, managed 10/100 switching  Tailored for businesses with up to 250 users

Function, Flexibility, Scalability

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 7 Agenda

Cisco ® Catalyst ® Switches Overview

Cisco Catalyst 500, 2960, 3560-E, 3750-E

Intelligent Services

Summary

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 8 Cisco Catalyst Express 500 Series Purpose Built Switches for 20–250 User Networks

Smart  Future proof network with Cisco Technology and Power over  Ready for innovative technologies such as IP Telephony and Wireless LAN  Integrated intelligence to detect network issues before they become problems

Simple  Eliminate complexity with Cisco Network Assistant  Easy to use Diagnostics via Troubleshooting Advisor  Ease of deployment and management with Cisco Smartports Multiple Configurations Suited to SMB Needs (10/100, 10/100 Secure  Easily customize network access level PoE or 10/100/1000) with Security Policy Slider  Securely attach and install WLAN Access Points  Encrypted Management

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 9 Cisco Catalyst Express 500 Series Model Overview

Catalyst Express 500-24TT Catalyst Express 500-24LC

• 24 10/100 ports • 20 10/100 ports • 2 10/100/1000Base-T ports • 4 10/100 PoE ports • 2 10/100/1000BT or SFP ports • 62W IEEE 802.3af / Cisco prestandard PoE

Catalyst Express 500-24PC Catalyst Express 500G-12TC

• 24 10/100 PoE ports • 8 10/100/1000BT ports • 2 10/100/1000BT/SFP ports • 4 10/100/1000BT or SFP ports • 370W IEEE 802.3af / Cisco pre-standard PoE

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 10 Cisco Catalyst 2960 Series Switches Catalyst 2960 LAN Base Series Catalyst 2960 LAN Lite Series

 Fast Ethernet and Gigabit Ethernet in 8, 24, and 48  Fast Ethernet in 24 and 48 port configurations port configurations for entry-level enterprise and mid-market customers for small branch offices and wiring closets  PoE configurations with up to 15.4W up to 24 ports  Offers standard Layer 2 services with entry-  Offers enhanced Layer 2+ intelligent LAN services: level availability, security, and QoS – Availability – Scalable and secure network management – Enhanced security Simplified management and troubleshooting – Advanced (QoS)  for lower total cost of ownership  Simplified management and troubleshooting for lower total cost of ownership  Cisco Network Assistant and Cisco  Cisco Network Assistant and Cisco Smartports Smartports  Limited lifetime hardware warranty and software  Limited lifetime hardware warranty and updates at no additional charge software updates at no additional charge

Uses Cisco ASICs for superior quality and hardware and software integration

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 11 Cisco Catalyst 2960 LAN Base Series — Model Overview Catalyst ® 2960-24PC-L Catalyst 2960-24LT-L Catalyst 2960PD-8TT-L New New New  8 10/100/1000 ports  24 10/100 PoE ports  24 10/100 ports (8 PoE ports)  1 10/100/1000 PoE Input port  2 dual-purpose uplink ports  2 10/100/1000 uplink ports  Compact form-factor with no fan Catalyst ® 2960G-24TC-L Catalyst 2960G-48TC-L Catalyst 2960G-8TC-L

 7 10/100/1000 ports  20 10/100/1000 ports  44 10/100/1000 ports  1 dual-purpose uplink port  4 dual-purpose uplink ports  4 dual-purpose uplink ports  Compact form-factor with no fan Catalyst 2960-24TC-L Catalyst 2960-48TC-L Catalyst 2960-8TC-L

 8 10/100 ports  24 10/100 ports  48 10/100 ports  1 dual-purpose uplink port  2 dual-purpose uplink ports  2 dual-purpose uplink ports  Compact form-factor with no fan

Catalyst 2960-24TT-L Catalyst 2960-48TT-L Software LAN Base Image  Enterprise-class intelligent  24 10/100 ports  48 10/100 ports services: Advanced QoS,  2 10/100/1000 uplink ports  2 10/100/1000 uplink ports enhanced security, high availability

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 12 Dual Purpose Uplink Port Behavior

 Only one port either SFP or 10/100/1000 Copper will be SFP A C active at any time. Copper B D  Users can manually select the media type using “media-type [sfp] or [rj45] ” interface command Dual Purpose Uplink Validity or leave it to auto-select. Combination A B No  SFP always gets the preference A C Yes on switch boot-up or when the A D Yes interface is enabled (shut/no shut). In all other cases which B C Yes ever media linkup first will be B D Yes selected as active media. C D No

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 13 Cisco Catalyst 2960 Supported Small Form - Factor Pluggable Modules

Catalyst 2960 Catalyst 2960 SFP Transceiver LAN Base LAN Lite GLC-LH-SM Yes Yes

GLC-SX-MM Yes Yes

GLC-ZX-SM Yes No

GLC-T Yes* Yes

GLC-BX-D Yes No SFP GLC-BX-U

GLC-GE-100FX Yes* Yes GLC-FE-100FX

GLC-FE-100LX Yes No

GLC-FE-100BX-D Yes No GLC-FE-100BX-U LC Connectors 8 CWDM SFPs Yes No

*GLC-T and GLC-GE-100FX are not supported on the Catalyst 2960 Compact switches. For 100BASE-FX connectivity, use the GLC-FE-100FX instead.

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 14 Cisco Catalyst 2960 LAN Lite Series — Model Overview

Catalyst 2960-24TC-S Catalyst 2960-48TC-S

 24 10/100 ports  48 10/100 ports  2 dual-purpose uplink ports  2 dual-purpose uplink ports

Catalyst 2960-24-S Software New LAN Lite Image

 24 10/100 ports  Entry level QoS, security, and availability with a focus on ease-of- use and lower total cost of ownership

Note: Catalyst 2960 Switches cannot be upgraded or downgraded between LAN Base and LAN Lite software.

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 15 Catalyst 2960 Power Over Ethernet (PoE) switches

Benefits  Prepare the network for IP Telephony and Wireless access  Eliminate the need for separate electrical wiring  Protect your investment and avoid a costly upgrade  Cisco pre-standard POE and 802.3af are fully supported  Cisco IOS provides intelligent power management with granular control  Wide selection of standards-based IEEE 802.3af powered devices –IP Phones –Wireless Access Points –Surveillance cameras –Access Card Readers

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 16 Catalyst 2960 Compact Switches

Meeting unique physical requirements of the office workspace, conference rooms, and classrooms, and micro branch offices

• Small size (H x W x D) 4.4cm x 27cm x 16-23cm • Flexible wall and under the desk mounting • Durable metal shell • Cable guard • Internal power supply and right angle power cord • Passive cooling (no fan) • Magnet included • Security locking slot • 19 inch rack mount option

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 17 Redundant Power System 2300

Benefits  Increases network availability  Seamlessly provides backup power to network devices  Modular power supplies and fan for flexibility and increased availability  Management and configuration capabilities allow users to define and implement the failover policy Easier to Use  Six RPS connectors—Up to 2 switches actively backed up  Seamless failover to RPS 2300 when switch power supply fails  RPS 2300 and switch can have separate AC sources Greater Modularity  Uses the same 1150W and 750W power supplies as the Cisco Catalyst 3750E and 3560E switches  Replaceable fan module

Note: The Catalyst 2960 LAN Lite Switches and Catalyst 2960 Compact Switches do not have RPS support. The Catalyst 2960 PoE switches require CAB-2300-E= which allows users to manage C97-373923-01RPS via© 2007 the Cisco Systems,switch. Inc. All rights reserved. Cisco Confidential 18 Catalyst 3750-E and 3560-E Series Switches Innovative Stacking  24 or 48 10/100/1000 ports with 2 Sets New Standards wire speed 10 Gigabit uplinks for Resiliency and  10 second 10 Gigabit upgrade Management  Full Class 3 (15.4W) Power over Ethernet support on all 48 ports  StackWise Plus: Backwards compatible, 64 Gbps and local switching  Field replaceable power supply and fan  Redundant power system support  High performance IP routing

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 19 Catalyst 3750-E Models

 PoE and data only options  Any 3750-E model can be connected with another through 24 10/100/1000T Ports + 2x 10GE StackWise Plus  3750-E models can be combined in a stack with existing 3750 48 10/100/1000T Ports + 2x 10GE models in a mixed stack

24 10/100/1000T Ports w/POE + 2x 10GE

48 10/100/1000T Ports w/POE + 2x 10GE

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 20 Catalyst 3560-E Models

 The 3560-E is for standalone deployments  Similar features to the 3750-E, but 24 10/100/1000T Ports + 2x 10GE StackWise is removed –Same software features

–Same PoE options 48 10/100/1000T Ports + 2x 10GE

24 10/100/1000T Ports w/POE + 2x 10GE

48 10/100/1000T Ports w/POE + 2x 10GE

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 21 Extending Flexibility – Catalyst 3560E-12D

New

 12-port 10 Gigabit Ethernet Aggregation switch  10 GE X2 Transceiver support: SR, LR, ER, CX4, LX4, LRM  TwinGig Converter Module for mixed GE/10GE uplinks  60 Gbps; 90 Mpps  1 Rack Unit  Front to back cooling  Dynamic routing– EIGRP, OSPF, BGPv4  3 software license types

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 22 Catalyst 3560E-12SD

New Jan 2008

 12 Gig SFP ports and 2 X2 10 GE ports  Dual redundant FRU power supplies, with a DC option  Redundant FRU fans  Transceiver support –TwinGig Converter Module –10GE X2: SR, LR, ER, CX4, LX4, LRM  Catalyst 3560-E IOS feature set

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 23 StackWise Plus

• 64Gbps Stacking Throughput* Unified Stacking, • Local switching Behaving As a Single Unit • Intelligently traffic forwarding • Backward compatible with the original StackWise • Fault-tolerant, Bi-directional stack interconnection • Automated Configuration & Management • Single network instance (IP, SNMP, CLI, STPProtocol , VLAN) • Master/secondary architecture with master failover • Cross-Stack EtherChannel®, cross-stack QoS

* For typical traffic patterns, actual performance may be higher or lower

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 24 10 Gigabit Ethernet

 Two 10GE uplink interfaces  Wire rate forwarding performance  Supported X2 Transceivers –SR (MMF) –LR (SMF 10km) –ER (SMF 40km) –CX4 (Copper) –LX4 (MMF - 300m SMF - 10km)

 TwinGig Adapter converts an X2 interface into dual SFP interfaces  All SFPs supported on 3750 platform are supported with the TwinGig Adapter  TwinGig Adapters are hot swappable with X2 modules

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 25 StackWise Plus Architecture

Local Switching C E F D

24 or 48 ports wire speed 1 No packets traverse StackWise connections 2 4 StackWise Plus StackWise3 Plus Ring

2 Ingress Policing 1 Egress queuing and 3 load balancing

Destination switch 4 removes packets and A B delivers them

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 26 Agenda

Cisco ® Catalyst ® Switches Overview

Cisco Catalyst 500, 2960, 3560-E, 3750-E

Intelligent Services

Summary

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 27 Cisco Catalyst Intelligent Switching Infrastructure

Intelligent Switching is a Common Foundation of Capabilities across Cisco ® Catalyst ® Switches

Performance, QoS Security Manageability Availability  Layer 2, 3, 4 access  End-to-end manageability  Layer 2, 3, 4 control for centralized  Wire-speed classification forwarding  Identity-based administration  Policing and shaping authentication  No performance  Web-based or command- effect with all  Multiple queues  Management security line interface (CLI) services enabled  Granular control  Admission control  Analysis and planning tools

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 28 Intelligence Through More-Capable ASICs

* IP TCP/UDP MAC DA MAC SA802.1Q/1p Length Header TOS… IP SA IP DA … DATA Header Info

Layer 2 Info Layer 3 Info Layer 4 Info

 Layer 2 switches are limited to the processing and forwarding of Layer 2 information.  Multilayer switches can look deeper into the frame => intelligent decisions based on Layer 3 or Layer 4 information.  Examples of why this scenario is useful: Preserve bandwidth by limiting traffic based on a user’s IP address. Preserve bandwidth by limiting traffic based on applications using a constant TCP/UDP port number—Web browsing, enterprise resource planning (ERP) applications, etc. Prevent access to network resources based on user’s IP address. Classify and mark traffic based on Layer 3 QoS (DSCP).  Cisco ® innovative ASICs with Cisco IOS ® Software integration enable superior intelligent services that will not bottleneck the network.

* Not to Scale C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 29 Cisco Catalyst Intelligent Switching Infrastructure

Features  Layer 2, 3, 4 traffic classification  Shaping, sharing, and policing  Granular control Advanced QoS  Wire-speed performance Benefits Security  Manage bandwidth to meet business priorities Availability  Maintain performance for time-sensitive applications Manageability  Better meet defined SLAs  Suffer no performance degradation with services enabled

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 30 Where Congestion Exists, QoS is Required

Aggregation Speed Mismatch LAN to WAN

10 Mbps 10 Mbps

1000 Mbps 64 kbps

 Points of aggregation  Links and buffers  Points of substantial speed mismatch  Transmit buffers tend to fill (TCP windowing)  Buffering reduces loss, introduces delay

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 31 Not All Traffic is Created Equal

Data Mission- Voice Video (Best-Effort) Critical Data Low to Moderate to Moderate to Low to Bandwidth Moderate High High Moderate Random Drop Low Low High High Sensitivity Delay Moderate to High High Low Sensitivity High Jitter Low to High High Low Sensitivity Moderate

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 32 S2 Cisco Catalyst 2960 Series Extensive QoS Features

Traffic Classification and Marking for Differentiated Services Per-Port or Individual/Aggregate Flow Classification and Rewriting of MAC Address, 802.1p CoS/DSCP, IP Address, and TCP/UDP Port

Ingress Queue 1 Egress Queuing/ Queuing/ Ingress Queue 2 RX Classify Mark Scheduling Scheduling TX Police Congestion Queue 3 Congestion Control Queue 4 Control

Admission Control Advanced Traffic Shaping and Scheduling  Prevent Network Congestion  Four Queues per Port  Input and Output Policing  Shaped Round Robin per Port  Strict Priority Queuing

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 33 Campus QoS Considerations Trust Boundary Extension and Operation

“I See You’re an IP Phone, 1 So I Will Trust Your CoS” PC VLAN = 10

Phone VLAN = 110

TRUST BOUNDARY 4 2 “CoS 5 = DSCP 46 ” “Voice = 5, Signaling = 3 ” “CoS 3 = DSCP 24 ” “CoS 0 = DSCP 0 ” All PC Traffic Is Reset to CoS 0 3 PC Sets CoS to 5 for All Traffic 1 Switch and Phone Exchange CDP; Trust Boundary Is Extended to IP Phone 2 Phone Sets CoS to 5 for VoIP and to 3 for Call-Signaling Traffic 3 Phone Rewrites CoS from PC Port to 0 4 Switch Trusts CoS from Phone and Maps CoS  DSCP for Output Queuing

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 34 Cisco IOS IP SLAs Uses

Service Level TCP/IP VoIP Network Availability Agreements Health Monitor Performance Monitoring Assessment (SLA’s)

Measurement Metrics

Packet Network Dist. of Connection Loss Elapsed Time Latency Loss Jitter Stats (Reachability)

Operations

Jitter FTP DNS DHCP DLSW ICMP UDP TCP HTTP LDP H.323 SIP G711 G729

Defined Packet Size, Spacing COS and Protocol IP Server

Source IP SLA MIB Data Active Generated Traffic Destination to measure the network IP SLA IP SLA Catalyst 2960 Responder C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 35 Cisco Catalyst Intelligent Switching Infrastructure

Features  Identity-based authentication  Wire-speed access control lists  Controlled access to system Advanced QoS maintenance  Integrated security services Security Benefits  Authenticate and control access Availability based upon user identity  Protect critical business assets Manageability  Prevent downtime  Prevent network attacks from within

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 36 Cisco Catalyst Switching Integrated Security

Secure Connectivity Threat Defense Trust and Identity

Man-in-Middle Attack Mitigation: Port Security, DHCP Snooping SSL

Scavenger-Class QoS SSH SNMPv3 Si Si Si Si Identity-Based Networking L2-4 ACLs (802.1x extensions) Private VLAN Edge Si

Quarantine VLAN (remediation) Web and MAC Based Cisco ® Trust Agent Authentication Network Admission Control

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 37 The Need for Admission Control

 Viruses, worms, spyware, etc. still #1 cause of financial loss*. Downtime, recovery, lost productivity, credibility, legal implications.

 Users routinely authenticated, but...

 Endpoint devices (laptops, PCs, PDAs) are not checked for security policy compliance.

 Unprotected endpoints spread infection. Required security software not installed, disabled, or out of date “Endpoint systems are vulnerable Checking for compliance is difficult and represent the most likely point of and expensive. infection from which a virus or worm can spread rapidly and cause serious disruption and economic damage. ” —Burton Group *2005 FBI/CSI Report

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 38 Cisco Catalyst Access Control Lists

What It Does: Benefits:  Allows or denies access  Prevents unauthorized access based on the source or to servers and applications destination address  Allows designated users to  Restricts users to access specified servers designated areas of the  Takes advantage of TCAMs, network, blocking enabling wire speed performance unauthorized access to all other applications and Forwarding performance not compromised by ACLs because information lookups are done in hardware  Provides ability to access control all packets, either internally bridged within a VLAN or routed between VLANs

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 39 Protecting Against Worms

How It Works: The ACL provides a mechanism to protect servers, users, and applications against worms by determining what traffic streams or users can access what ports. Port 1434

Internal Network

Using ACLs, the virus or worm is not able to replicate from its hosts.

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 40 Mitigating Unauthorized Devices Protecting Against Well-Intentioned Users

® Network Instability Unauthorized Cisco Secure ACS Unauthorized Switch Switch BPDU Guard

Incorrect Root Guard STP Info Enterprise Enterprise Server Server Authorized Authorized Switch Switch Problem: Solution: Well-intentioned users place Cisco Catalyst ® Switches support unauthorized network devices on the rogue BPDU filtering: BPDU Guard, network, possibly causing instability. Root Guard

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 41 Secure Connectivity

Secure Shell (SSH) Protocol  SSH encrypts administration traffic during sessions while configuring or troubleshooting switches. Secure Sockets Layer (SSL)  SSL encrypts network management traffic, allowing the secure use of tools such as the Cisco ® Network Assistant. SNMPv3 (with crypto support) Encrypted Data  SNMPv3 provides network security by encrypting administrator traffic during SNMP session to configure or troubleshoot switches. Kerberos  Kerberos authenticates users and network services using a trusted third party to perform secure verification. Secure Copy  SCP provides a secure and authenticated method for copying switch configurations or switch image files. SCP relies on SSH.

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 42 Securing Layer 2 from Surveillance Attacks Cutting Off MAC-Based Attacks

00:0e:00:aa:aa:aa Only 3 MAC 00:0e:00:bb:bb:bb Addresses Allowed on the 250,000 Bogus Port: Shutdown MAC addresses per Second

Problem: Solution:  “Script Kiddie” Hacking Tools Enable  Port Security Limits MAC Flooding Attackers’ Flood Switch CAM Tables Attack and Locks Down Port and with Bogus MAC Addresses, Turning Sends an SNMP Trap the VLAN into a “Hub” and Eliminating switchport port-security Privacy switchport port-security maximum 3  Switch CAM Table Limit Is Finite switchport port-security violation restrict switchport port-security aging time 2 Number of MAC Addresses switchport port-security aging type inactivity

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 43 Voice (VLAN) aware Port Security

 Scenario – IP phone + host on same switch port

 Port security & STP violations are Si Si now VLAN/voice aware  Violations for the host only affect “data” VLAN Only affected VLAN is placed in error disable state Voice VLAN remains unaffected  Improves network availability

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 44 DHCP Spoofing Attack

Rogue DHCP Offer DHCP IP: 10.1.1.20/24 Server GW: 10.1.1.1 DNS: 192.168.1.122 √ DHCP Server User Ports DHCP Discovery Untrusted Broadcast Victim Problem: Solution  Malicious user pretends to be the network  Do not trust user ports so DHCP server. only DHCP requests can  Misconfigured user starts up a DHCP server be sent. incorrectly.  Snoop DHCP information  Malicious user can send out bogus address, for integrity. deplete the address space, or spoof the default gateway.

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 45 DHCP Snooping

What It Does:  Switch forwards only DHCP DHCP Snooping Enabled requests from untrusted access ports, and drops all other types Si Trusted of DHCP traffic. DHCP t s e snooping allows only u q designated DHCP ports or e D R H DHCP P C uplink ports trusted to relay C P Server DHCP messages. It builds H Untrusted X A D X C a DHCP binding table K containing client IP address, √ client MAC address, port, and VLAN number. Benefit: DHCP  DHCP snooping eliminates Client rogue devices from behaving Rogue Server as the DHCP server .

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 46 Identity-Based Network Services

What It Does:  Using the 802.1x Standard with Cisco ® Enhancements, the Network Grants Privileges Based on User Login Information, Regardless of the User’s Location or Device.

Benefits:  Allows different people to use the same PC and have different capabilities.  Ensures that users get only their designated privileges, no matter how they are logged into the network.  Reports unauthorized access.

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 47 Identity-Based Network Services

How It Works: All users trying to enter the network must receive authorization based on their personal username and password.

Valid Username RADIUS Valid Password Server

Yes TACACS+ or RADIUS No

 Equivalent to placing a security guard at each Invalid Username switch port. Invalid Password  Only authorized users can get network access. Client  Unauthorized users can be locked out or Accessing placed into “guest” VLANs. Switch  These services prevent unauthorized or “rogue” access points.

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 48 Standard 802.1x/VLAN Assignment

 Restrict users to a specified RADIUS VLAN to limit their network 2. Authentication ok, access. assign VLAN3 and ACL14 to Accountant  Standard 802.1X- on port5 authenticated ports are 1. User ok? assigned to a VLAN based on the username of the client connected to that port. 802.1x Switched LAN  The RADIUS server database Requires maintains the username-to- Marketing Mgr: 802.1x Clients VLAN mappings. Is on Marketing VLAN, and cannot access any finance or  Authentication is similar to accounting servers VMPS/VQP function, except Finance Mgr: Is on Finance VLAN it uses 802.1x/RADIUS as and can access all the authentication finance and accounting servers. mechanism. Accountant: Is on Finance VLAN but can access only accounting server.

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 49 Standard 802.1x and Voice VLAN

PC Needs to Authenticate with 802.1x

Voice Traffic Allowed through Cisco Discovery Protocol

 When the switch recognizes through Cisco ® Discovery Protocol that a Cisco phone is attached to the port, voice traffic is allowed onto the auxiliary VLAN without the authentication of the supplicant on the primary VLAN. The non-IP phone supplicant (PC) connected to the port is authenticated through 802.1x and uses the PVID.  The IP phone has access to the VVID for its voice traffic irrespective of the authorized or unauthorized state of the port.

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 50 The Cisco Advantage With IBNS

Cisco’s experience and leadership make 802.1x integrated and deployable through Identity Based Network Services  802.1x with Integrated Port Security  802.1x Wake on LAN  802.1x with Dynamic VLAN assignment  802.1x with Guest VLAN  802.1x with Voice VLAN ID Support  802.1x with Dynamic ACLs  802.1x MAC Auth Bypass  802.1x Auth-Fail-VLAN  802.1x AAA-Fail-Open  802.1x MIB and Accounting  802.1x Web Based Proxy  802.1x Readiness Check

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 51 Cisco Catalyst Intelligent Switching Infrastructure

Features  Wire-speed forwarding  No performance effect with all services enabled

Advanced QoS  Load balancing  Redundancy Security Benefits  Network remains operable Availability despite failures  Defined SLAs can be met Manageability  Offers business resiliency  Reduces maintenance cost

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 52 Wire-Speed Services

Wire-speed, high- 35 Mpps touch services with no performance hit: Hardware Services  512 QoS policies Software-Based  1024 security policies Services  64 policers Packet Drop, Cache  4 queues per port Misses, CPU Overload

Services Load, for Example, ACLs, QoS, and Multicast

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 53 FlexLinks—L2 Redundancy

 Achieve Layer 2 redundancy without requiring STP (Spanning Tree Protocol) Si Si  Access switches with backup links to Distribution switches—deployed as Flex link pair Si Si  Fast convergence upon forwarding Distribution link failover Sub 100msec cut over  Convergence time independent of number of VLANs and MAC- Access addresses

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 54 FlexLinks—L2 Redundancy

Cat6K Cat6K

1. Primary link down detected (24msec poll) 2. Backup link √ becomes the X active link Active Link Backup Link

Catalyst 2960

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 55 Flexlink Performance—Timings

MSTP MSTP Flexlink Flexlink

VLANs Macs UpStrm DnStrm UpStrm DnStrm 1 2 144 143 19 31

32 1280 1033 1231 20 199

64 2560 1581 1899 45 590

128 3840 2423 3022 16 633

1000 6000 7507 8454 46 4820

(in milliseconds)

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 56 Flexlink VLAN load balancing

Primary link down detected Backup carries X VLANs 60, 50, 20 Primary Link - Backup Link - Carries VLANs 60, 50 carries VLAN 20 gi2/0/6 gi2/0/8

Cat2960

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 57 Cisco Catalyst 2960 Multicast Support

 IGMP snooping used Multicast Servers (Source) for managing group membership information

 Per-port broadcast, multicast, and unicast storm control LAN

 Multicast VLAN registration

 Virtual Trunking Protocol pruning

Hosts (Receivers or Groups)

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 58 Cisco Catalyst Intelligent Switching Infrastructure

Features  End-to-end manageability through common set of management tools  Centralized administration Advanced QoS and software upgrades  Web-based access Security Benefits

Availability  Simplify implementation, troubleshooting, and upgrades  Reduce operational costs Manageability  Simplify intelligent service implementation  Reduce maintenance cost

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 59 Integrated Time Domain Reflectometer (TDR)

Layer1 Troubleshooting tool TDR helps to determine:  The length of a cable  Whether the cable is correctly wired internally (pin-to-pin wire mapping)  Whether the cable contains a short circuit (wires touching each other through damaged or missing insulation)  Whether the cable contains a broken wire (called an “open”)  Whether the cable suffers from electrical cross talk (interference).  CISCO-CABLE-DIAG-MIB

P Cable P O O R R T Fault T

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 60 Broadest Range of Network Management Products

 Tens of thousands of devices WAN Manager  Service provisioning  Global WANs  Cisco ® IGX, BPX ®, and MGX ® Switches only

CiscoWorks LAN  Thousands of devices Management  Service management Solution (LMS)  WANs and LANs Price-Performance Cisco Network Assistant Up to 40 switches and routers

Free Catalyst Device Manager One switch, initial setup only Function and Flexibility Small and Enterprise Service Provider Medium Business *Small Network Management Solution (SNMS) C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 61 Management Interfaces

Cisco Catalyst Device Manager Cisco Network Assistant

Manages a single device Manages a 40-device SMB network  Web-based—HTML  , switch, IP phone, wireless…  Web-based—Java

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 62 3 Cisco Network Assistant 00K + Down Release 5.0 loads

 Multi-product, multi-technology management tool  Supports up to 40 devices Switches, Routers and Firewalls and unlimited IP Phones and Access points  Interactive topology and front panel views  Configuration, Monitoring, Troubleshooting & Network Optimization  Highlight your VLANs, Telnet to devices, Drag-n-Drop IOS upgrades  Localized in French, Italian, German, Spanish, Chinese and Japanese  Free download www.cisco.com/go/cna

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 63 The Business Relevance of Cisco Smartports

Benefits Cisco ® Smartports allows for Simple  Simplified feature deployment and accurate deployment of high-value  Less chance of errors network-optimizing intelligent features.  Deployment consistency across the network  Greater value from Internet Intranet the intelligent network through Increased feature usage What It Does  Preconfigured macros enables fast and easy configuration of advanced Cisco Catalyst ®

intelligent capabilities Si Si  Quickly enables QoS, security, and availability features with a single command  Offers granular flexibility on a per- port basis  Offers ability to create customized macros

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 64 Cisco Smartports From This: To This: Global Commands failureserrdisable recovery cause link-flap errdisable recovery cause udld errdisable recovery interval 60 vtp domain [smartports] vtp mode transparent udld aggressive spanning-tree mode rapid-pvst spanning-tree loopguard default spanning-tree extend system-id

Interface Commands default interface range FastEthernet[1]/0/[1–48] interface range FastEthernet[1]/0/[1–48] switchport access vlan [data] switchport mode access switchport voice vlan [voice] switchport port-security switchport port-security maximum 3 switchport port-security violation restrict switchport port-security aging time 2 switchport port-security aging type inactivity auto qos voip cisco-phone spanning-tree portfast spanning-tree bpduguard enable

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 65 Agenda

Cisco ® Catalyst ® Switches Overview

Cisco Catalyst 2960 Product Overview

Intelligent Services

Summary

C97-373923-01 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Confidential 66 Pushing the Technology Curve Cisco Technology Innovator $4 billion R&D investment annually Over 100 companies acquired 17,000 engineers in 10 global labs More than 2,300 patents in last 10 years PISA Inline Power StackWise EtherChannel GOLD Modular IOS SLA IOS Twin CDP Tag NetFlow Switching DAI DHCP Gig HSRP RSRB ISL MISTP Snooping EEM ISSU

1990 1995 2000 2005 802.1q MPLS DLSw IPFix VRRP 802.3ad LLDP 802.1s 802.af

 Cisco employees chair over 20 IETF working groups and are on IEEE committees

Cisco Contributing to Standards

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