1. 1 © 2001, Cisco Systems, Inc. Catalyst 3550-12T Product Overview April 2001

2. 2 © 2001, Cisco Systems, Inc. www.cisco.com AgendaAgenda Catalyst 3550-12T Overview and Positioning Technical Overview Design Examples Selling the Catalyst 3550-12T—Competitive Guide

3. 3 © 2001, Cisco Systems, Inc. www.cisco.com Cisco Delivers the Most Complete Line of LAN Products in the Industry Price/Performance Function/Flexibility Wiring Closet - L2 Mid-sized Network Backbone/ “Top of the Stack” Aggregation - L3 Catalyst 1900 Low-cost 10 Mbps switching Clustering capable FastHub 400 Low-cost shared 10/100 Stackable Catalyst 2950 Wire-speed standalone 10/100 switching 10/100/1000BaseT uplinks Clustering capable Catalyst 3500 Series XL Stackable 10/100/1000 plus GBIC ports High performance L3 switching and routing Catalyst 4908G-L3 Stackable 10/100 switching Gigabit optimized Clustering capable Standalone Gigabit switching Wire-speed L3 switching and routing NEW Catalyst 3550-12T

4. 4 © 2001, Cisco Systems, Inc. www.cisco.com New Catalyst 3550-12T 10 10/100/1000BaseT ports with two GBIC ports Offers 17 Mpps forwarding rate performance at Layer 2 and Layer 3 Layer 3 capable hardware preinstalled Limited lifetime warranty Full Cisco GBIC support All existing GBICs (GigaStack™ GBIC, SX, LX, and ZX) New single-port 1000BaseT GBIC Catalyst 3550-12T GBIC-Based or 1000BaseT Gigabit Ethernet Ports NEW

5. 5 © 2001, Cisco Systems, Inc. www.cisco.com Catalyst 3550-12T Key Benefits Security Access control lists for data plane security Support for 802.1x TACACS+ for management access Availability HSRP for router redundancy Redundant routed uplinks Faster network convergence Scalability Scalable L3 routing protocols Multicast routing scalability Broadcast domain segmentation Control Top-of-the-stack routing for deterministic traffic control L3 QoS extends end-to-end trust boundry Granular traffic rate limiting Simplicity Switch clustering extends ease of use to Cisco IOS Intelligent Network Services Fewer Spanning Tree instances and trunked VLANs Common IOS CLI

6. 6 © 2001, Cisco Systems, Inc. www.cisco.com In the wiring closet Provides Layer 2 device aggregation, broadcast domain segmentation, and efficient routed uplinks to the core Extend the QoS trust boundary by classifying, marking, and policing traffic using L2 through L4 parameters Enforce security, policy, and intelligent bandwidth management Efficient and flexible multicast distribution with IGMP Snooping or PIM In the distribution layer Terminate Layer 2 VLANs and perform inter-VLAN routing and access control; Order of magnitude processing power is greater than S/W based routers CoS to DSCP mapping, enforce security, policy, and intelligent bandwidth management via ACLs Multicast routing for IP multicast domains Deployment Scenarios

7. 7 © 2001, Cisco Systems, Inc. www.cisco.com Cisco’s Midmarket 1000BaseT Solution Why 1000BaseT? Protects investment in installed horizontal cabling (Category 5) Leverages investment in installed gear Extends Cisco IOS® Intelligent Network Services at 17 Mpps forwarding rate over copper Where in the network? Aggregation of wiring closets Uplinks to distribution layer Data centers Wiring Closet Distribution 1000T L3 Core Wiring Closet 1000T Wiring Closet 1000T Catalyst 3550-12T Catalyst 2950T-24

8. 8 © 2001, Cisco Systems, Inc. www.cisco.com Software Feature Summary IP forwarding CEF-based IP Forwarding RIP, RIP 2, OSPF IGRP, EIGRP Quality of Service Classification of frames Policing Egress queuing (WRR, WRED for Gig) L2 802.1p, L3 DiffServ Multicast Management PIM: Dense-Sparse mode IGMP Snooping CGMP server Reliability HSRP Routed uplinks Equal cost routing Mobility/Security BootP, DHCP relay TACACS+ 802.1x support (future) Standard and extended ACLs VLAN ACLs Management CMS for Layer 3 Switch clustering Integration with CiscoWorks VLAN Services ISL, IEEE 802.1Q VTP server, client, and transparent VTP pruning

9. Catalyst 3550-12T Quality of Service 91069_05F9_c1 © 1999, Cisco Systems, Inc.

10. 10 © 2001, Cisco Systems, Inc. www.cisco.com PCsE-Mail Servers Voice Mission Critical Video Surveillance Mission- Critical Servers Existing NetworkNew Additions Protect Mission-Critical Traffic! Evolving Campus Network

11. 11 © 2001, Cisco Systems, Inc. www.cisco.com Voice Video Data (Best-Effort) Mission- Critical Data Bandwidth Low to Moderate Moderate to High Low to Moderate Random Drop Sensitivity Low High Delay Sensitivity High Low Moderate to High Jitter Sensitivity High Low Low to Moderate Not All Traffic Is Created Equal

12. 12 © 2001, Cisco Systems, Inc. www.cisco.com Why not just increase the link speed? Throw more bandwidth at the problem! QoS in Campus Networks?

13. 13 © 2001, Cisco Systems, Inc. www.cisco.com QoS vs. More Bandwidth More Bandwidth Simplicity TCP will eventually retransmit any dropped packets Data traffic is not delay or drop sensitive QoS Differentiated traffic (video, voice, critical data) Output buffers have tendency to be operating at 100% in the campus at congestion points Buffer management is required to control delay or drops Do you care about delay/drops at congestion points?

14. 14 © 2001, Cisco Systems, Inc. www.cisco.com AggregationSpeed Mismatch 10 Mbps 1000 Mbps LAN to WAN 10 Mbps 64 Kbps Where Does Congestion Exist? Where QoS Applies QoS required where there is congestion in links and buffers Points of substantial speed mismatch and points of aggregation Transmit buffers have the tendency to fill (TCP windowing) Buffering reduces loss, introduces delay

15. 15 © 2001, Cisco Systems, Inc. www.cisco.com Key QoS Benefits Extends Layer 3 QoS trust boundary Manages congestion points via line rate classification and queuing QoS aggregation occurs in the wiring closet Define incoming traffic using Layer 2-4 information at the network access Deliver cost effective “distribution” QoS (reclassify out-of-profile traffic) QoS implementation via QoS access control lists

16. Catalyst 3550-12T Management and Clustering 161069_05F9_c1 © 1999, Cisco Systems, Inc.

17. 17 © 2001, Cisco Systems, Inc. www.cisco.com Switch Clustering Uses any supported physical media and transport technologies: copper, fiber, Fast Ethernet, Gigabit Ethernet Up to 16 interconnected, geographically dispersed switches can be managed by a single IP address Fully backward compatible with all Catalyst 2900 XL, 3500 XL, 1900 or 2820, or new Catalyst 2950 products Web-based interface for easy configuration and management of all clustered switches Award-Winning Cisco Cluster Management Suite

18. 18 © 2001, Cisco Systems, Inc. www.cisco.com Switch Clustering Investment Protection Command Catalyst 3550-12T Closet C Combination Closet A Catalyst 2950 Daisy Chain with Gig E ports Closet B Catalyst 3500 XL Daisy Chain with GigaStack GBICs Members Single IP Managed Domain Catalyst 6500 Gigabit Ethernet or Gigabit EtherChannel® Redundant Commander NEW 1000BaseT GBIC NEW

19. 19 © 2001, Cisco Systems, Inc. www.cisco.com Cluster Management Suite

20. 20 © 2001, Cisco Systems, Inc. www.cisco.com Cluster Management Suite Enhancements

21. 21 © 2001, Cisco Systems, Inc. www.cisco.com Enhancements to Switch Clustering User interface improvements Multilayer feature configuration QoS, Dynamic Routing, ACLs Context-sensitive help Guide and Expert mode configuration Wizards/templates

22. 22 © 2001, Cisco Systems, Inc. www.cisco.com QoS Configuration Wizard Catalyst 3550-12T Cluster Management Suite Network Administrator Input Designated video ports Wizard configures Layer 2/3 QoS policies by mapping traffic characteristics to desired QoS behavior Video Traffic Characteristics High bandwidth Symmetric two- way traffic Low drops Low delay Low jitter QoS Behavior for Video Ports Assign appropriate DSCP value to voice packets Set Strict Priority scheduling for voice traffic Map voice DSCP value to Strict Priority Queue Set Policing for packets in Priority Scheduling Queue

23. 23 © 2001, Cisco Systems, Inc. www.cisco.com Clustering Supported Configurations Centralized Server Farm Internet Cisco 2600/3600 Catalyst 3550-12T Command Switch Subnet/VLAN 1 Subnet/VLAN 2 Subnet/VLAN 3 Subnet/VLAN 4 Manage WAN access (including voice) L2/L3 Redundant Commander

24. Catalyst 3550-12T Design Examples 241069_05F9_c1 © 1999, Cisco Systems, Inc.

25. 25 © 2001, Cisco Systems, Inc. www.cisco.com Top of the Stack Wiring Closet Multilayer Switching Core Catalyst 2950T 1000BaseT Uplinks Gig EtherChannel Catalyst 3550-12T Wiring Closet #1 Redundant Routed Uplinks Wiring Closet #2 1000BaseT GBIC Catalyst 3524-PWR Catalyst 3500 XL NEW Catalyst 3550-12T CallManager

26. 26 © 2001, Cisco Systems, Inc. www.cisco.com Distribution Layer Wiring Closet Aggregation 1000BaseT Uplinks Gig EtherChannel Catalyst 3550-12T HSRP Catalyst 3524 XL- PWR NEW Catalyst 3550-12T Daisy-Chained Catalyst 2950T 1000BaseT GBIC Cross Stack UplinkFast NEW Centralized Server Farm Network Core Distribution Layer CallManager

27. 27 © 2001, Cisco Systems, Inc. www.cisco.com Stackable Multilayer Backbone Internet Cisco 2600/3600 Catalyst 3550 Command Switch Catalyst 2950T point-to-point 1000BaseT links Catalyst 3500 XL GigaStack cascade or 1000BaseT GBIC point-t- point links WAN Access Call Manager

28. 28 © 2001, Cisco Systems, Inc. www.cisco.com Server Aggregation Catalyst 3550-12T 1000BaseT Server Links Centralized Servers ISP #1 Cisco 2600/3600 Multi Homed ISPs to Remote Sites Campus Core ISP #2 10/100 Links Equal Cost Routes to Campus Benefits Central physical security and aAdministration Access control lists for server access Scalable design Dynamic IP routing at 17 Mpps forwarding rate QoS/policing to prioritize mission-critical applications Redundant links to core Efficient use of network resources

29. 29 Presentation_ID © 1999, Cisco Systems, Inc. www.cisco.com