Page
 Table of Contents
 Basic Switch Configuration
 Axis Bus
Catalyst Crescendo Architecture
Phoenix Asic
Iii
 LCP Sage Asic QTP Asic Qmac
 101
100
102
103
 114
 Vii
 161
Depth 160 ATM Overview
Viii
 Depth 199 Layer 2 Switching Overview
 235
Vlan ID
 Multilayer Switching
 Xii
 Xiii
Depth 309 Hardware Troubleshooting No Power
 345
341
347
Xiv
 359
 Limits of Liability and Disclaimer of Warranty
Cisco Switching Black Book
Trademarks
President and CEO
 Product Marketing Manager
Acquisitions Editor
Project Editor
Technical Reviewer
 About the Authors
Jeff Duntemann VP and Editorial Director
Acknowledgments
Sean Odom
 Thanks for buying the Cisco Switching Black Book
How to Use This Book
Introduction
Overview
 Black Book Philosophy
 Physical Media and Switching Types
Network Switching Fundamentals
Depth
 Networking Architectures
Bit of History
 Peer−to−Peer Networking Model
 Client/Server Network Model
Pieces of Technology
 Hubs
Repeaters
 Bridges
Page
 Routers
Switches
 Network Design
 Collision Domains
 Broadcast Domains
Why Upgrade to Switches?
 Unshielded Twisted−Pair Cable
 Network Utilization
Properly Switched Networks
 Store−and−Forward Switching
Switched Forwarding
Cut−Through Switching
FragmentFree Switching
 Combining Switching Methods
Switched Network Bottlenecks
 Non−Blocking Switch vs. Blocking Switch
 Internal Route Processor vs. External Route Processor
Rule of the Network Road
 Full−Duplex Ethernet
Switched Ethernet Innovations
Fast Ethernet
 Cisco IOS
Avoiding Fork−Lift Upgrades
Gigabit Ethernet
 Powering Up the Switch
Connecting to the Switch
Subinterfaces
 Following commands are available in Privileged Exec mode
 Today’s Trend
Challenges
 Entering and Exiting Global Configuration Mode
Entering and Exiting Privileged Exec Mode
Entering and Exiting Interface Configuration Mode
Entering and Exiting Subinterface Configuration Mode
 Saving Configuration Changes
 Command−Line Interfaces
Basic Switch Configuration
 Queuing
Campus Hierarchical Switching Model
 Distribution Layer
Access Layer
 Core Layer
Remote Network Monitoring
 Connecting to the Console Port
 Console Cable Pinouts
 RJ−45−to−AUX Port Console Connector Pinouts
Console Connectors
Rollover cable RJ−45−to−RJ−45 pinouts
 DTE connectors for an RJ−45 to a DB−25 female
Pin Signal Input/Output
Out
 IOS Configuration Modes
Switch IOSs
DB−25−to−DB−9 connector pinouts Signal
 Configuring an IOS−Based CLI Switch
Limiting Telnet Access
Configuring Passwords
Implementing Privilege Levels
 Setting Privilege Levels
Setting the Login Passwords
Assigning Allowable Commands
Setting the Console Port Time−out Value
 Configuring the Hostname
Configuring the Telnet Time−out Value
Configuring the Date and Time
Configuring an IP Address and Netmask
 Configuring Port Speed and Duplex
Configuring a Set/Clear−Based CLI Switch
Logging On to a Switch
Enabling Snmp Contact
 ∙ You are now in Privileged Exec mode
Setting the Login and Enable Passwords
Changing the Console Prompt
Help
 To configure a Slip interface, enter the following
Configuring System and Time Information
Entering a Contact Name and Location Information
 Viewing the Default Routes
 Enabling Snmp
Configuring Trap Message Targets
 Configuring a Menu−Driven IOS
 Configuring Telnet
Configuring the Console Port
Configuring the Password
Configuring an IP Address and Default Gateway
 Configuring Snmp
 Entering ROM Configuration Mode
Configuring ROM
Booting ROM Mode from a Flash Device
Device
 Configuring Rmon on a Set/Clear−Based Interface
Configuring Rmon
 Using IOS−Based Command Editing Keys and Functions
Using Set/Clear Command Set Recall Key Sequences
Page
 WAN Switching
 WAN Transmission Media
 Synchronous Transport Signal STS
 MGX 8200 Series
Cisco WAN Switches
 IGX 8400 Series
BPX 8600 Series Wide−Area Switches
 MGX 8800 Series Wide−Area Edge Switches
WAN Switch Hardware Overview
 Cisco WAN Switch Network Topologies
 CLI
Network Management
WAN Manager
 Displaying a User’s Password
Accessing and Setting Up IGX and BPX Switches
Changing a User’s Password
Adding New Users
 Displaying the Power and Temperature of a Switch
Using the History Command
Configuring the ASM Setting for BPX
Resetting the Switch
 Setting the Switch Name
Displaying Other Switches
Setting the Time Zone
Configuring the Time and Date
 Changing Passwords
Accessing the MGX 8850
Assigning a Switch Hostname
Use the command cnfname to assign a hostname for the switch
 Displaying Detailed Information for the Current Card
Displaying a Summary of All Modules
Changing the Time and Date
Displaying the IP Address
 Displaying the Alarm Level of the Switch
Configuring the IP Interface
 Catalyst Crescendo Architecture
LAN Switch Architectures
 Single BUS vs. Crossbar Matrix
ASICs
Input Queuing
Output Queuing
 ∙ Synergy Advanced Multipurpose Bus Arbiter Samba Asic
Earl Asic placement on the Crescendo architecture
 Crescendo Logic Units
Crescendo Processors
 Axis Bus
Other Cisco Switch Processors, Buses, ASICs, and Logic Units
 DCEF
CEF Asic
 CEF Search Engine
Adjacency Table
 Cisco Express Forwarding Asic components
Phoenix Asic
 Source Route Bridging
Bridging Types
Connected to the Qmac Asic
 Source Route Transparent Bridging
Source Route Switching
Source Route Translational Bridging
Transparent Bridging
 Process Switching
Switching Paths
Fast Switching
 Silicon Switching
Autonomous Switching
Optimum Switching
Distributed Switching
 Loading an Image on the Supervisor Engine
System Message Logging
Up to 90 seconds
To load copies to Flash memory, use the following
 Setting the Boot Configuration Register
Booting the Supervisor Engine III from Flash
Configuring Cisco Express Forwarding
Enabling CEF
 Enabling dCEF
Configuring CEF Load Balancing
Disabling dCEF
Disabling CEF on an Individual Interface
 Viewing the Adjacency Table on the 8500 GSR
Disabling Per−Destination Load Sharing
Clearing the Adjacency Table on the 8500 GSR
Viewing CEF Packet−Dropped Statistics
 Here’s an example of the command’s use
 Disabling Server Logging
Clearing the Server Logging Table
 Displaying System Logging Messages
Displaying the Logging Configuration
Page
 Flat Network of Yesterday
Virtual Local Area Networks
 Why Use VLANs?
 Vlan Basics
Properly Switched Network
 Switched Internetwork Security
 Vlan Boundaries
Scaling with VLANs
 Traffic Patterns Flowing through the Network
Vlan Membership Types
Cisco’s Vlan Recommendations
 Trunk Types
Vlan Trunking
 Cisco Standards
Ieee
Ieee 802.1Q
 Inter−Switch Link ISL Protocol
 LAN Emulation Lane
Vlan Trunking Protocol VTP
Domain must share the same VTP domain name
 VTP Advertisements
VTP Versions
Page
 Client Mode
VTP Switch Modes
VTP Pruning
100
 Transparent Mode
Server Mode
InterVLAN Routing
Methods for Vlan Identification
 How InterVLAN Routing Works
Internal Route Processors
102
 Configuring Multiple VLANs on a Catalyst 5000 Series Switch
Configuring a Static Vlan on a Catalyst 5000 Series Switch
Creating VLANs on a Catalyst 1900EN Series
103
 104
Assigning a Static Vlan to an Interface on a 1900EN Series
 Viewing an Individual Vlan Configuration on a 1900 Series
Viewing the Vlan Configuration on a 1900 Series
Configuring a Trunk Port on a Cisco 5000 Series
Results are shown here
 Auto
On or desirable mode
Desirable
Off
 Mapping VLANs to a Trunk Port
Configuring a Trunk Port on a Cisco 1900EN Series
Clearing VLANs from Trunk Links on a Cisco 5000 Series
Clearing VLANs from Trunk Links on a Cisco 1900EN Series
 Verifying a Trunk Link Configuration on a 1900EN Series
Verifying a Trunk Link Configuration on a 5000 Series
Configuring the VTP Version on a Catalyst 5000 Switch
Following shows the results
 Setting a VTP Domain Password on a Catalyst Switch
Configuring a VTP Domain on a Catalyst 1900 Switch
Configuring a Catalyst 1900 Switch as a VTP Server
Configuring a Catalyst 1900 Switch as a VTP Client
 Configuring VTP on a Set/Clear CLI Switch
Configuring VTP Pruning on a Catalyst 1900 Switch
Configuring VTP on a 1900 Cisco IOS CLI Switch
110
 Statistics command instead
Verifying the VTP Configuration on a Set/Clear CLI
Displaying VTP Statistics
111
 Disabling Pruning for Unwanted VLANs
Configuring VTP Pruning on a Set/Clear CLI Switch
112
 Assign an IP address and subnet mask to the subinterface
Configuring IPX InterVLAN Routing on an External Router
113
 Internal Route Processors
InterVLAN and Basic Module Configuration
114
 115
Cisco Express Forwarding Asic
 Available Route Processors
Multimodule vs. Fixed Configuration Switches
116
 117
NetFlow Feature Card and NetFlow Feature Card
 118
Route Switch Module
 Multilayer Switch Module
Route Switch Feature Card
∙ Xerox Network Systems XNS
119
 Routing Protocol Assignment
Supervisor Engine Modules
Supervisor Engines I
120
 121
Supervisor Engine
 Etherport Modules
Using the Supervisor Engine
122
 Determining the Slot Number in Which a Module Resides
Manually Configured MAC Addresses
Port Security
123
 Configuring a Hostname on the RSM
Accessing the Internal Route Processor from the Switch
124
 Here is an example of setting the port speed and port name
Enter Global Configuration mode with the following commands
125
 Verifying the IP Configuration on a Catalyst
Configuring a Default Gateway on a Catalyst
Enabling RIP on an RSM
Assign a Vlan to an IP address
 Configuring InterVLAN Routing on an RSM
Viewing the RSM’s Running Configuration
Configuration to the Nvram
127
 Configuring AppleTalk InterVLAN Routing on an RSM
Configuring IPX InterVLAN Routing on the RSM
128
 Assigning a MAC Address to a Vlan
Viewing the RSM Configuration
Viewing the MAC Addresses
129
 Configuring Port Security on an Ethernet Module
Configuring Filtering on an Ethernet Interface
130
 Configure the hostname
Configuring the Catalyst 5000 Supervisor Engine Module
Clearing MAC Addresses
131
 132
 Changing the Management Vlan on a Supervisor Engine
Viewing the Supervisor Engine Configuration
133
 134
Configuring the Cisco 2621 External Router for ISL Trunking
 135
Configuring Redundancy Using Hsrp
 136
 IP Multicasting Overview
IP Multicast
137
 Unicast
Broadcast
∙ Unicast ∙ Multicast
138
 Want to Join the Military?
Multicast
139
 Multicast IP Structure
IP Multicasting Addresses
140
 After removing the X portion, the section
X bits are not used. The remaining bits
Special Multicast Addresses
141
 Multicast Distribution Tree
Delivery of Multicast Datagrams
142
 Igmp Protocols
Multicast Forwarding
143
 Protocol Independent Multicast
Distance Vector Multicast Routing Protocol
144
 IGMPv1
Internet Group Management Protocol Igmp
Multicast Open Shortest Path First
145
 146
IGMPv2
 Time to Live
Multicast at Layer
Igmp Snooping
147
 Router Group Management Protocol
Cisco Group Management Protocol
148
 Garp Multicast Registration Protocol
Configuring IP Multicast Routing
Disabling IP Multicast Routing
Enabling PIM on an Interface
 Configuring a Router to Be a Static Multicast Group Member
Configuring the Rendezvous Point
Restricting Access to a Multicast Group
Adding a Router to a Multicast Group
 Configuring Multicast Router Ports
Configuring Multicast Groups
Changing the Igmp Host−Query Message Interval
Removing Multicast Groups
 Configuring Igmp Fast−Leave Processing
Configuring Igmp Snooping
Removing the Multicast Router
Disabling Igmp Snooping
 Displaying Multicast Routers Learned from Igmp
Displaying Igmp Statistics
Displaying Igmp Multicast Groups
153
 Disabling Cgmp
Configuring Cgmp
Enabling Cgmp Fast−Leave Processing
Disabling Cgmp Fast−Leave Processing
 Configuring Rgmp on the Router
Configuring Rgmp on the Switch
Disabling Rgmp on the Switch
Displaying Rgmp Groups
 Displaying RGMP−Capable Router Ports
Configuring Gmrp
Displaying Rgmp Vlan Statistics
156
 Disabling Gmrp
Configuring Gmrp Registration
Enabling Gmrp on Individual Ports
Disabling Gmrp on Individual Ports
 Setting Gmrp Timers
Displaying the Gmrp Configuration
Displaying Gmrp Timers
158
 Configuring Packet−Based Suppression
Configuring Bandwidth−Based Suppression
Disabling Multicast Suppression
159
 ATM Overview
WAN Cell Switching
160
 161
ATM-Easy to Learn?
 ATM Protocols
ATM Circuit Switching
ATM Cells
162
 163
Time Division Multiplexing
 ATM Reference Model
ATM Switch and ATM Endpoints
ATM Cell Header
164
 ATM Layer
Physical Layer
165
 ATM Adaptation Layer
Specifying ATM Connections
166
 ATM Addressing
Local Area Network Emulation Lane
167
 What Are ELANs?
Lane Components
168
 LAN Emulation Server LES
LAN Emulation Client LEC
169
 170
LAN Emulation Configuration Server Lecs
 ATM Module Subinterfaces
Broadcast and Unknown Server BUS
LEC Queries
171
 Lane Communication
Integrated Local Management Interface Ilmi
ATM Addresses
172
 173
LE Messages
 Devices by using the config net command
Lane Configuration Guidelines
How Lane Works
Joining and Registering with the LES
 Implementing Lane
Configuring ATM on the 5000 Switch
175
 Network Management on the Lane Module
Lane Modules
176
 Segmentation and Reassembly
Connecting in an ATM Network
177
 Monitoring and Maintaining Lane
Accessing the ATM Lane Module
Displaying the Selector Field
178
 Configuring a LEC for an Elan
Configuring the LES/BUS
Verifying the LES/BUS Configuration
179
 Map the LEC bus to the Ethernet Elan named default
Verifying a LEC Configuration on an Elan
Map the LEC bus to the Ethernet Elan named ELAN2
180
 Viewing the Lane Database
Configuring the Lecs
Binding the Lecs Address to an Interface
181
 Verify the proper setup with the following command
Verifying the Lecs Configuration
182
 LightStream
LightStream Switches
183
 STS−3c/STM−1 155Mbps
100Mbps
184
 185
 Neighborhood Discovery Function
Virtual Path Connections
186
 LightStream Boot Process
LightStream Troubleshooting Tools
187
 Snooping Mechanisms
Supported Troubleshooting Protocols
Multiprotocol Over ATM
MPS
 Configuring an Enable Password
Configuring the Hostname
Configuring the Processor Card Ethernet Interface
MPC
 Verifying an ATM Interface Connection Status
Configuring Virtual Private Tunnels
Enter the interface on the module
Identify the private virtual path PVP number
 Configuring the Advertised Lecs Address
Viewing the Configured Virtual Connections
Viewing the Lane Configuration
191
 192
Viewing the Installed Modules
 Configuring the MPS
Configuring the MPC
Changing the MPS Variables
193
 Configuring Lane on a LightStream
Enabling Ilmi Autoconfiguration
Monitoring the MPS
194
 Configuring the LS100 Switch
Powering on the LightStream 100 ATM Switch
195
 196
Recovering a Lost Password
 197
 198
 Layer 2 Redundant Links
Layer 2 Switching Overview
Frames
199
 Broadcast and Multicast Frames
Layer 2 Network Loops
Unknown Unicasts
∙ Broadcast frames ∙ Multicast frames ∙ Unknown unicasts
 201
Edsger Dijkstra’s Graph Theory
 202
STP Root Bridges
 203
Bridge Protocol Data Units
 204
Bpdu Timers
 Root Bridge Selection
Parent and Child Switches
Selection Process
205
 206
Port Costs, Path Costs, and Port Priorities
 Equal Cost Paths
Spanning Tree Convergence Time
207
 208
STP Port States
 Per−VLAN Spanning Tree
EtherChannel
Pvst and PVST+
209
 Link Failure
EtherChannel Administrative Groups
Port Aggregation Protocol
210
 PortFast
Fast Convergence Components of STP
UplinkFast
211
 BackboneFast
Enabling STP on a Set/Clear Command−Based Switch
212
 Disabling STP on a Set/Clear Command−Based Switch by Vlan
Disabling STP on a Set/Clear Command−Based Switch
Following example, the Vlan number is
213
 Disabling STP on an IOS Command−Based Switch
Configuring STP on an IOS Command−Based Switch
214
 Configuring the STP Root Switch
Viewing the STP Configuration on a Command Line Switch
Configuring the STP Secondary Root Switch
Root
 Secondary optional
Assigning a Port Cost to a Port Using a CLI−Based Switch
216
 Configuring the Port Priority on a CLI−Based IOS
Configuring the Port Priority on a Set/Clear Command−Based
217
 Adjusting the FwdDelay Timer on a Set/Clear Command−Based
Verifying the Vlan Priority Settings
Adjusting the Hello Timer on a Set/Clear Command−Based IOS
218
 Preparing to Enable EtherChannel
Adjusting the MaxAge Timer on a Set/Clear Command−Based
219
 Negotiation. This is the default setting
Disables the port from channeling or creating a bundle
220
 Defining an EtherChannel Administrative Group
Verifying the EtherChannel Configuration
Viewing an EtherChannel Administrative Group
221
 Here, the mode is auto
Configuring EtherChannel on an IOS−Based Switch
Identifying the Template Port
222
 Disabling PortFast on a Set/Clear Command−Based Switch
Enabling PortFast on a Set/Clear Command−Based Switch
Enabling PortFast on a CLI−Based IOS Switch
223
 Verifying the PortFast Configuration
Disabling PortFast on a CLI−Based IOS Switch
Enabling UplinkFast on a Set/Clear Command−Based Switch
Disabling UplinkFast on a Set/Clear Command−Based Switch
 Enabling UplinkFast on a Cisco IOS Command−Based Switch
Verifying the UplinkFast Configuration
Disabling UplinkFast on a Cisco IOS Command−Based Switch
225
 Viewing UplinkFast Statistics on an IOS−Based Switch
Viewing the UplinkFast Configuration on an IOS−Based Switch
Enabling BackboneFast on a Set/Clear Command−Based Switch
Disabling BackboneFast on a Set/Clear Command−Based Switch
 Why Not Call Them Routers?
Multilayer Switching
How MLS Works
227
 MLS Components
∙ MLS Switching Engine MLS−SE-The switch supporting MLS
Prioritizing Traffic Flows
228
 229
 230
MLS Flows
 Destination−IP Flow Mask
Access List Flow Masks
Source−Destination−IP Flow Mask
231
 IP Access Lists and MLS Interaction
MLS Troubleshooting Notes
IP−Flow Flow Mask
232
 233
Configuring MLS
 MLS Cache
Aging Timers
234
 VTP Domain
Configuring an External MLS Route Processor
Management Interfaces
MLS Cache Fast Aging Time
 Disabling Mlsp on an MLS−RP for IP
Enabling Mlsp on an MLS−RP for IP
Enabling Mlsp on an MLS−RP for IPX
Disabling Mlsp on an MLS−RP for IPX
 Enabling MLS on an Individual Interface
Configuring the MLS Switch Engine
Disabling MLS on an External Router Interface
Re−enabling MLS on a Catalyst
 Configuring Fast Aging on a Catalyst
Configuring the MLS Cache on the Catalyst
Disabling MLS on a Catalyst
Disabling Fast Aging on a Catalyst
 Configuring Normal Aging on the Catalyst
Configuring Long Aging on the Catalyst
Disabling Long Aging on the Catalyst
Disabling Normal Aging on the Catalyst
 Viewing the MLS Aging Configuration on a Catalyst
Monitoring and Viewing the MLS Configuration
Displaying the IP MLS Configuration
Viewing MLS−RPs
 Viewing the MLS Vlan Interface Information
Displaying MLS VTP Domain Information
Viewing MLS Statistics on the Catalyst
241
 242
Viewing MLS Entries
 Hot Standby Routing Protocol
Routing Problems
243
 Proxy ARP
Routing Information Protocol
Icmp Router Discovery Protocol
244
 Token Ring Standby Groups 255
Solution
245
 246
Groups primarily to facilitate load sharing
 Hsrp States
Hsrp Message Format
247
 Hsrp Interface Tracking
Hsrp Configuration
Disabling Icmp Redirects
248
 Opening a Session on an Internal Route Processor
Entering Configuration Mode on an RSM
249
 Removing a Preempt Delay from a Standby Group
Assigning a Preempt Delay to a Standby Group
Setting the Hsrp Hello and Hold Timers
Assigning an Hsrp Interface Priority
 Configuring a Clear−Text Password for Hsrp Authentication
Removing the Hsrp Hello and Hold Timers
Configuring Two Rsfc Interfaces as One Hsrp Group
Here’s what happened
 Enabling Interface Tracking
Using the show standby Command
252
 253
Using the debug Command
 Policy Networking
Access Security Policies
254
 Distribution Layer Policies
Core Layer Policies
255
 Access Lists
∙ Managing Hypertext Transfer Protocol Http access
Access List Types
256
 257
Access list string as an example
 258
List
 Applying Access Lists
To remove a remark, use a command like the following
259
 260
Applying Access Lists to Route Filtering
 Configuring Passwords
Security at the Access Layer
Limiting Telnet Access
Implementing Privilege Levels
 Physical Device Security
Configuring Banner Messages
262
 Vlan Management
Creating a Standard Access List
Static MAC Assignment vs. Dynamic MAC Assignment
263
 264
Creating an Extended Access List
 265
 Applying Access Lists Using distribute−list
Applying Access Lists Using access−class
266
 Configuring Line Console Time−Out Values
Configuring a Telnet Session Time−Out Value
Implementing Privilege Levels on a 1900EN
267
 Enabling Http Access
Configuring Banner Messages
Exec−timeout 5
268
 Enabling Port Security
Enable
Aaa
Local
 Displaying the MAC Address Table
 271
 Standard and Enterprise Edition Cvsm
Web Management
Cvsm Client Requirements
272
 Cvsm Default Home
Cvsm Access Levels
273
 274
Switch Image
 275
 276
Connecting to the Web Management Console
 277
 278
 279
 280
 281
Configuring the Switch Port Analyzer
 282
 Standard Edition IOS
1900 and 2820 Series Switches
Main Menu Choices
283
 284
Console Settings
 285
System Menu
 Network Management
IP Configuration
Let’s look at each option from this menu in more detail
286
 287
Snmp Management
 Bridge − Spanning Tree
Snmp Default Trap Messages
Cisco Discovery Protocol
288
 Cisco Group Management Protocol
Port Configuration
289
 AUI port
Syntax Port
Port Statuses
290
 291
 292
Port Addressing
 Monitor
Port Statistics Detail
Virtual LAN
293
 Firmware
Multicast Registration
294
 295
RS−232 Interface
 296
Usage Summaries
 297
 ∙ X Exit-This option returns you to the Main Menu
Configuring Network Settings on the 1900 and 2820 Series
298
 299
Configuring Broadcast Storm Control on Switch Ports
 300
Configuring Snmp on the 1900 Series
 301
 302
 Related solution Found on Enabling Snmp Contact
Configuring Port Monitoring on the Standard Edition IOS
303
 304
Configuring VLANs on the Standard Edition IOS
 305
 306
 Select E to enable Uplink Fast
Configuring Spanning Tree Protocol
Assigning a Static Vlan to an Interface on a 1900EN Series
307
 308
 Hardware Troubleshooting
Switch Troubleshooting
No Power
309
 310
Indicator Lights
 Switched Port Analyzers
Switch Cabling
311
 Cable Problems
Switch Troubleshooting Tools
CiscoWorks for Switched Internetworks
Cross−Over Cables
 313
IOS Software Troubleshooting Commands
 Show cam
Show config
Duplicate MAC Addresses
Show cdp neighbors
 Show interface
Show flash
Show log
Show mac
 Show system
Viewing the Set/Clear IOS Configuration
Show test
Show version
 317
 318
 319
 320
Viewing the CLI−Based IOS Configuration
 321
Viewing the IOS Version Information on a CLI−Based IOS
 Show test module number
322
 323
 Viewing the VTP Domain Configuration on a CLI−Based IOS
Viewing the VTP Domain Configuration on a Set/Clear IOS
324
 325
Viewing the Vlan Configuration on a CLI−Based IOS
 326
Viewing the Spanning Tree Configuration on a CLI−Based IOS
 327
 328
Viewing the CAM MAC Address Table on a CLI−Based IOS
 Viewing the CDP Neighbors on a CLI−Based IOS
Viewing the CDP Neighbors on a Set/Clear Command−Based
329
 Viewing Port Statistics on a Set/Clear IOS
Viewing Individual Port CAM Tables on a CLI−Based IOS
330
 MAC
331
 Viewing Port Statistics on a CLI−Based IOS
Here is the output using the exception syntax
332
 Using the show port Command on a CLI−Based IOS
Using the Port Configuration on a Set/Clear Command−Based
333
 Using the show vlan Command on a CLI−Based IOS
Using the show vlan Command on a Set/Clear Command−Based
334
 335
Using the show interface Command on a CLI−Based IOS
 336
Using the show log Command on a Set/Clear Command−Based
 337
 338
 339
 340
 Books
Appendix a Study Resources
Cisco Group Study and Users Groups
Live Cisco Training/Internet−Based Labs/Study Resources
 Online Resources
 Standards Organizations
Quality of Service
Spanning Tree Protocol
VLANs
 ∙ it.careershop.com
Cisco Job Search Sites
344
 Appendix B Basic IOS CLI−to−Set/Clear Commands
 Vlan name Vlan−membership static vlan Assigns a port to
Configures STP Set spantree enable mod/number hello
346
 Establishing Credibility
Appendix C The Cisco Consultant
347
 Come Off As an Expert
Designing a Solution
348
 Presenting the Final Proposal and Creating Expectations
Estimating the Cost
Total up front
349
 Document, Document, Document
Contracting
Way to Fail
350
 Assuming You Know What the Customer Needs
Failing to Manage Your Time
351
 Failing to Take Responsibility
Conclusion
352
 353
Required Equipment
 354
Lab Objectives
 1912 Basic Configuration
Possible Solution
Configure a password for the switch
355
 Assign Vlan names
Enable trunking on this port to always be on
356
 357
Catalyst 5000 Basic Configuration
 Verify the configurations
Configuring the Cisco 2621 Interface for ISL Trunking
358
 Access Layer Switches
Appendix E Switch Features
Cisco Catalyst
Forwarding rate 370 pps Max MAC addresses 024 048
 360
Forwarding rate 370 pps
 361
4MB Dram 8MB
 12MB
Cisco Catalyst 3500 Series XL
362
 16MB
Cisco Catalyst 3900 Series
Stackable Yes Forwarding Rate Million pps
363
 Key Features and Benefits
Distribution Layer Switches
Up to 8MB Stackable Yes
364
 Cisco Catalyst 4000 Series
Key Features
Catalyst 5000 Series
365
 366
Catalyst 6000 Series
 367
Core Layer/WAN Switches
 Cisco Catalyst 8400 Series
Catalyst 8400 Services
Catalyst 8400 Modules
368
 Network Management
Cisco Catalyst 8500 Series
369
 BPX 8600 Series
BPX 8680 Universal Service Node
370
 MGX 8800 Series
Services
371
 372
Series Gigabit Switch Routers
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 Hypertext Transfer Protocol Http
Hub
See Institute of Electrical and Electronics Engineers Ieee
Ieee 802.1Q
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395