Depth 199 Layer 2 Switching Overview | Cisco Systems RJ-45-to-AUX

Table of Contents
Chapter 9: LightStream Switches
Verifying an ATM Interface Connection Status	190
Viewing the Configured Virtual Connections	191
Configuring the LECS ATM Address on a LightStream 1010 Switch	191
Configuring the Advertised LECS Address	191
Viewing the LANE Configuration	191
Viewing the Installed Modules	192
Configuring the MPC	193
Configuring the MPS	193
Changing the MPS Variables	193
Monitoring the MPS	194
Enabling ILMI Autoconfiguration	194
Configuring LANE on a LightStream 1010	194
Powering on the LightStream 100 ATM Switch	195
Configuring the LS100 Switch	195
Recovering a Lost Password	196
Chapter 10: Layer 2 Redundant Links	199
In Depth	199
Layer 2 Switching Overview	199
Frames	199
Broadcast and Multicast Frames	200
Unknown Unicasts	200
Layer 2 Network Loops	200
Danger! Data Loops!	201
Edsger Dijkstra’s Graph Theory	201
STP Root Bridges	202
Bridge Protocol Data Units	203
Root Bridge Selection	205
Spanning Tree Convergence Time	207
STP Port States	208
Per−VLAN Spanning Tree	209
EtherChannel	209
Link Failure	210
Port Aggregation Protocol	210
Fast Convergence Components of STP	211
PortFast	211
UplinkFast	211
BackboneFast	212
Enabling STP on a Set/Clear Command−Based Switch	212
Enabling STP on a Set/Clear Command−Based Switch for All VLANs	213
Disabling STP on a Set/Clear Command−Based Switch	213
Disabling STP on a Set/Clear Command−Based Switch by VLAN	213
Viewing the STP Configuration on a Set/Clear Command−Based Switch	213
Configuring STP on an IOS Command−Based Switch	214
Disabling STP on an IOS Command−Based Switch	214
Viewing the STP Configuration on a Command Line Switch	215
Configuring the STP Root Switch	215
Configuring the STP Secondary Root Switch	215
Setting the Root Bridge for More than One VLAN on a Set/Clear Command−Based Switch	216
Assigning a Port Cost to a Port Using the Set/Clear Command−Based IOS	216
Assigning a Port Cost to a Port Using a CLI−Based Switch	216

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Cisco Systems RJ-45-to-AUX manual Depth 199 Layer 2 Switching Overview

Contents

Page Table of Contents Basic Switch Configuration Phoenix Asic Catalyst Crescendo ArchitectureAxis Bus Iii LCP Sage Asic QTP Asic Qmac 102 100101 103 114 Vii 161 Depth 160 ATM OverviewViii Depth 199 Layer 2 Switching Overview Vlan ID 235 Multilayer Switching Xii Depth 309 Hardware Troubleshooting No Power Xiii 347 341345 Xiv 359 Trademarks Cisco Switching Black BookLimits of Liability and Disclaimer of Warranty President and CEO Project Editor Acquisitions EditorProduct Marketing Manager Technical Reviewer Acknowledgments Jeff Duntemann VP and Editorial DirectorAbout the Authors Sean Odom Introduction How to Use This BookThanks for buying the Cisco Switching Black Book Overview Black Book Philosophy Physical Media and Switching Types Network Switching FundamentalsDepth Bit of History Networking Architectures Peer−to−Peer Networking Model Pieces of Technology Client/Server Network Model Repeaters Hubs Bridges Page Switches Routers Network Design Collision Domains Why Upgrade to Switches? Broadcast Domains Unshielded Twisted−Pair Cable Properly Switched Networks Network Utilization Cut−Through Switching Switched ForwardingStore−and−Forward Switching FragmentFree Switching Switched Network Bottlenecks Combining Switching Methods Non−Blocking Switch vs. Blocking Switch Rule of the Network Road Internal Route Processor vs. External Route Processor Full−Duplex Ethernet Switched Ethernet InnovationsFast Ethernet Cisco IOS Avoiding Fork−Lift UpgradesGigabit Ethernet Powering Up the Switch Connecting to the SwitchSubinterfaces Following commands are available in Privileged Exec mode Challenges Today’s Trend Entering and Exiting Interface Configuration Mode Entering and Exiting Privileged Exec ModeEntering and Exiting Global Configuration Mode Entering and Exiting Subinterface Configuration Mode Saving Configuration Changes Basic Switch Configuration Command−Line Interfaces Campus Hierarchical Switching Model Queuing Access Layer Distribution Layer Remote Network Monitoring Core Layer Connecting to the Console Port Console Cable Pinouts RJ−45−to−AUX Port Console Connector Pinouts Console ConnectorsRollover cable RJ−45−to−RJ−45 pinouts DTE connectors for an RJ−45 to a DB−25 female Pin Signal Input/OutputOut IOS Configuration Modes Switch IOSsDB−25−to−DB−9 connector pinouts Signal Configuring Passwords Limiting Telnet AccessConfiguring an IOS−Based CLI Switch Implementing Privilege Levels Assigning Allowable Commands Setting the Login PasswordsSetting Privilege Levels Setting the Console Port Time−out Value Configuring the Date and Time Configuring the Telnet Time−out ValueConfiguring the Hostname Configuring an IP Address and Netmask Logging On to a Switch Configuring a Set/Clear−Based CLI SwitchConfiguring Port Speed and Duplex Enabling Snmp Contact Changing the Console Prompt Setting the Login and Enable Passwords∙ You are now in Privileged Exec mode Help To configure a Slip interface, enter the following Configuring System and Time InformationEntering a Contact Name and Location Information Viewing the Default Routes Configuring Trap Message Targets Enabling Snmp Configuring a Menu−Driven IOS Configuring the Password Configuring the Console PortConfiguring Telnet Configuring an IP Address and Default Gateway Configuring Snmp Booting ROM Mode from a Flash Device Configuring ROMEntering ROM Configuration Mode Device Configuring Rmon Configuring Rmon on a Set/Clear−Based Interface Using Set/Clear Command Set Recall Key Sequences Using IOS−Based Command Editing Keys and FunctionsPage WAN Switching WAN Transmission Media Synchronous Transport Signal STS Cisco WAN Switches MGX 8200 Series BPX 8600 Series Wide−Area Switches IGX 8400 Series WAN Switch Hardware Overview MGX 8800 Series Wide−Area Edge Switches Cisco WAN Switch Network Topologies CLI Network ManagementWAN Manager Changing a User’s Password Accessing and Setting Up IGX and BPX SwitchesDisplaying a User’s Password Adding New Users Configuring the ASM Setting for BPX Using the History CommandDisplaying the Power and Temperature of a Switch Resetting the Switch Setting the Time Zone Displaying Other SwitchesSetting the Switch Name Configuring the Time and Date Assigning a Switch Hostname Accessing the MGX 8850Changing Passwords Use the command cnfname to assign a hostname for the switch Changing the Time and Date Displaying a Summary of All ModulesDisplaying Detailed Information for the Current Card Displaying the IP Address Configuring the IP Interface Displaying the Alarm Level of the Switch LAN Switch Architectures Catalyst Crescendo Architecture Input Queuing ASICsSingle BUS vs. Crossbar Matrix Output Queuing Earl Asic placement on the Crescendo architecture ∙ Synergy Advanced Multipurpose Bus Arbiter Samba Asic Crescendo Processors Crescendo Logic Units Other Cisco Switch Processors, Buses, ASICs, and Logic Units Axis Bus CEF Asic DCEF Adjacency Table CEF Search Engine Phoenix Asic Cisco Express Forwarding Asic components Source Route Bridging Bridging TypesConnected to the Qmac Asic Source Route Translational Bridging Source Route SwitchingSource Route Transparent Bridging Transparent Bridging Process Switching Switching PathsFast Switching Optimum Switching Autonomous SwitchingSilicon Switching Distributed Switching Up to 90 seconds System Message LoggingLoading an Image on the Supervisor Engine To load copies to Flash memory, use the following Configuring Cisco Express Forwarding Booting the Supervisor Engine III from FlashSetting the Boot Configuration Register Enabling CEF Disabling dCEF Configuring CEF Load BalancingEnabling dCEF Disabling CEF on an Individual Interface Clearing the Adjacency Table on the 8500 GSR Disabling Per−Destination Load SharingViewing the Adjacency Table on the 8500 GSR Viewing CEF Packet−Dropped Statistics Here’s an example of the command’s use Clearing the Server Logging Table Disabling Server Logging Displaying the Logging Configuration Displaying System Logging MessagesPage Virtual Local Area Networks Flat Network of Yesterday Why Use VLANs? Properly Switched Network Vlan Basics Switched Internetwork Security Scaling with VLANs Vlan Boundaries Traffic Patterns Flowing through the Network Vlan Membership TypesCisco’s Vlan Recommendations Vlan Trunking Trunk Types Cisco Standards IeeeIeee 802.1Q Inter−Switch Link ISL Protocol LAN Emulation Lane Vlan Trunking Protocol VTPDomain must share the same VTP domain name VTP Versions VTP AdvertisementsPage VTP Pruning VTP Switch ModesClient Mode 100 InterVLAN Routing Server ModeTransparent Mode Methods for Vlan Identification How InterVLAN Routing Works Internal Route Processors102 Creating VLANs on a Catalyst 1900EN Series Configuring a Static Vlan on a Catalyst 5000 Series SwitchConfiguring Multiple VLANs on a Catalyst 5000 Series Switch 103 Assigning a Static Vlan to an Interface on a 1900EN Series 104 Configuring a Trunk Port on a Cisco 5000 Series Viewing the Vlan Configuration on a 1900 SeriesViewing an Individual Vlan Configuration on a 1900 Series Results are shown here Desirable On or desirable modeAuto Off Clearing VLANs from Trunk Links on a Cisco 5000 Series Configuring a Trunk Port on a Cisco 1900EN SeriesMapping VLANs to a Trunk Port Clearing VLANs from Trunk Links on a Cisco 1900EN Series Configuring the VTP Version on a Catalyst 5000 Switch Verifying a Trunk Link Configuration on a 5000 SeriesVerifying a Trunk Link Configuration on a 1900EN Series Following shows the results Configuring a Catalyst 1900 Switch as a VTP Server Configuring a VTP Domain on a Catalyst 1900 SwitchSetting a VTP Domain Password on a Catalyst Switch Configuring a Catalyst 1900 Switch as a VTP Client Configuring VTP on a 1900 Cisco IOS CLI Switch Configuring VTP Pruning on a Catalyst 1900 SwitchConfiguring VTP on a Set/Clear CLI Switch 110 Displaying VTP Statistics Verifying the VTP Configuration on a Set/Clear CLIStatistics command instead 111 Disabling Pruning for Unwanted VLANs Configuring VTP Pruning on a Set/Clear CLI Switch112 Assign an IP address and subnet mask to the subinterface Configuring IPX InterVLAN Routing on an External Router113 Internal Route Processors InterVLAN and Basic Module Configuration114 Cisco Express Forwarding Asic 115 Available Route Processors Multimodule vs. Fixed Configuration Switches116 NetFlow Feature Card and NetFlow Feature Card 117 Route Switch Module 118 ∙ Xerox Network Systems XNS Route Switch Feature CardMultilayer Switch Module 119 Supervisor Engines I Supervisor Engine ModulesRouting Protocol Assignment 120 Supervisor Engine 121 Etherport Modules Using the Supervisor Engine122 Port Security Manually Configured MAC AddressesDetermining the Slot Number in Which a Module Resides 123 Configuring a Hostname on the RSM Accessing the Internal Route Processor from the Switch124 Here is an example of setting the port speed and port name Enter Global Configuration mode with the following commands125 Enabling RIP on an RSM Configuring a Default Gateway on a CatalystVerifying the IP Configuration on a Catalyst Assign a Vlan to an IP address Configuration to the Nvram Viewing the RSM’s Running ConfigurationConfiguring InterVLAN Routing on an RSM 127 Configuring AppleTalk InterVLAN Routing on an RSM Configuring IPX InterVLAN Routing on the RSM128 Viewing the MAC Addresses Viewing the RSM ConfigurationAssigning a MAC Address to a Vlan 129 Configuring Port Security on an Ethernet Module Configuring Filtering on an Ethernet Interface130 Clearing MAC Addresses Configuring the Catalyst 5000 Supervisor Engine ModuleConfigure the hostname 131 132 Changing the Management Vlan on a Supervisor Engine Viewing the Supervisor Engine Configuration133 Configuring the Cisco 2621 External Router for ISL Trunking 134 Configuring Redundancy Using Hsrp 135 136 IP Multicasting Overview IP Multicast137 ∙ Unicast ∙ Multicast BroadcastUnicast 138 Want to Join the Military? Multicast139 Multicast IP Structure IP Multicasting Addresses140 Special Multicast Addresses X bits are not used. The remaining bitsAfter removing the X portion, the section 141 Multicast Distribution Tree Delivery of Multicast Datagrams142 Igmp Protocols Multicast Forwarding143 Protocol Independent Multicast Distance Vector Multicast Routing Protocol144 Multicast Open Shortest Path First Internet Group Management Protocol IgmpIGMPv1 145 IGMPv2 146 Igmp Snooping Multicast at LayerTime to Live 147 Router Group Management Protocol Cisco Group Management Protocol148 Disabling IP Multicast Routing Configuring IP Multicast RoutingGarp Multicast Registration Protocol Enabling PIM on an Interface Restricting Access to a Multicast Group Configuring the Rendezvous PointConfiguring a Router to Be a Static Multicast Group Member Adding a Router to a Multicast Group Changing the Igmp Host−Query Message Interval Configuring Multicast GroupsConfiguring Multicast Router Ports Removing Multicast Groups Removing the Multicast Router Configuring Igmp SnoopingConfiguring Igmp Fast−Leave Processing Disabling Igmp Snooping Displaying Igmp Multicast Groups Displaying Igmp StatisticsDisplaying Multicast Routers Learned from Igmp 153 Enabling Cgmp Fast−Leave Processing Configuring CgmpDisabling Cgmp Disabling Cgmp Fast−Leave Processing Disabling Rgmp on the Switch Configuring Rgmp on the SwitchConfiguring Rgmp on the Router Displaying Rgmp Groups Displaying Rgmp Vlan Statistics Configuring GmrpDisplaying RGMP−Capable Router Ports 156 Enabling Gmrp on Individual Ports Configuring Gmrp RegistrationDisabling Gmrp Disabling Gmrp on Individual Ports Displaying Gmrp Timers Displaying the Gmrp ConfigurationSetting Gmrp Timers 158 Disabling Multicast Suppression Configuring Bandwidth−Based SuppressionConfiguring Packet−Based Suppression 159 ATM Overview WAN Cell Switching160 ATM-Easy to Learn? 161 ATM Cells ATM Circuit SwitchingATM Protocols 162 Time Division Multiplexing 163 ATM Cell Header ATM Switch and ATM EndpointsATM Reference Model 164 ATM Layer Physical Layer165 ATM Adaptation Layer Specifying ATM Connections166 ATM Addressing Local Area Network Emulation Lane167 What Are ELANs? Lane Components168 LAN Emulation Server LES LAN Emulation Client LEC169 LAN Emulation Configuration Server Lecs 170 LEC Queries Broadcast and Unknown Server BUSATM Module Subinterfaces 171 ATM Addresses Integrated Local Management Interface IlmiLane Communication 172 LE Messages 173 How Lane Works Lane Configuration GuidelinesDevices by using the config net command Joining and Registering with the LES Implementing Lane Configuring ATM on the 5000 Switch175 Network Management on the Lane Module Lane Modules176 Segmentation and Reassembly Connecting in an ATM Network177 Displaying the Selector Field Accessing the ATM Lane ModuleMonitoring and Maintaining Lane 178 Verifying the LES/BUS Configuration Configuring the LES/BUSConfiguring a LEC for an Elan 179 Map the LEC bus to the Ethernet Elan named ELAN2 Verifying a LEC Configuration on an ElanMap the LEC bus to the Ethernet Elan named default 180 Binding the Lecs Address to an Interface Configuring the LecsViewing the Lane Database 181 Verify the proper setup with the following command Verifying the Lecs Configuration182 LightStream LightStream Switches183 STS−3c/STM−1 155Mbps 100Mbps184 185 Neighborhood Discovery Function Virtual Path Connections186 LightStream Boot Process LightStream Troubleshooting Tools187 Multiprotocol Over ATM Supported Troubleshooting ProtocolsSnooping Mechanisms MPS Configuring the Processor Card Ethernet Interface Configuring the HostnameConfiguring an Enable Password MPC Enter the interface on the module Configuring Virtual Private TunnelsVerifying an ATM Interface Connection Status Identify the private virtual path PVP number Viewing the Lane Configuration Viewing the Configured Virtual ConnectionsConfiguring the Advertised Lecs Address 191 Viewing the Installed Modules 192 Changing the MPS Variables Configuring the MPCConfiguring the MPS 193 Monitoring the MPS Enabling Ilmi AutoconfigurationConfiguring Lane on a LightStream 194 Configuring the LS100 Switch Powering on the LightStream 100 ATM Switch195 Recovering a Lost Password 196 197 198 Frames Layer 2 Switching OverviewLayer 2 Redundant Links 199 Unknown Unicasts Layer 2 Network LoopsBroadcast and Multicast Frames ∙ Broadcast frames ∙ Multicast frames ∙ Unknown unicasts Edsger Dijkstra’s Graph Theory 201 STP Root Bridges 202 Bridge Protocol Data Units 203 Bpdu Timers 204 Selection Process Parent and Child SwitchesRoot Bridge Selection 205 Port Costs, Path Costs, and Port Priorities 206 Equal Cost Paths Spanning Tree Convergence Time207 STP Port States 208 Pvst and PVST+ EtherChannelPer−VLAN Spanning Tree 209 Port Aggregation Protocol EtherChannel Administrative GroupsLink Failure 210 UplinkFast Fast Convergence Components of STPPortFast 211 BackboneFast Enabling STP on a Set/Clear Command−Based Switch212 Following example, the Vlan number is Disabling STP on a Set/Clear Command−Based SwitchDisabling STP on a Set/Clear Command−Based Switch by Vlan 213 Disabling STP on an IOS Command−Based Switch Configuring STP on an IOS Command−Based Switch214 Configuring the STP Secondary Root Switch Viewing the STP Configuration on a Command Line SwitchConfiguring the STP Root Switch Root Secondary optional Assigning a Port Cost to a Port Using a CLI−Based Switch216 Configuring the Port Priority on a CLI−Based IOS Configuring the Port Priority on a Set/Clear Command−Based217 Adjusting the Hello Timer on a Set/Clear Command−Based IOS Verifying the Vlan Priority SettingsAdjusting the FwdDelay Timer on a Set/Clear Command−Based 218 Preparing to Enable EtherChannel Adjusting the MaxAge Timer on a Set/Clear Command−Based219 Negotiation. This is the default setting Disables the port from channeling or creating a bundle220 Viewing an EtherChannel Administrative Group Verifying the EtherChannel ConfigurationDefining an EtherChannel Administrative Group 221 Identifying the Template Port Configuring EtherChannel on an IOS−Based SwitchHere, the mode is auto 222 Enabling PortFast on a CLI−Based IOS Switch Enabling PortFast on a Set/Clear Command−Based SwitchDisabling PortFast on a Set/Clear Command−Based Switch 223 Enabling UplinkFast on a Set/Clear Command−Based Switch Disabling PortFast on a CLI−Based IOS SwitchVerifying the PortFast Configuration Disabling UplinkFast on a Set/Clear Command−Based Switch Disabling UplinkFast on a Cisco IOS Command−Based Switch Verifying the UplinkFast ConfigurationEnabling UplinkFast on a Cisco IOS Command−Based Switch 225 Enabling BackboneFast on a Set/Clear Command−Based Switch Viewing the UplinkFast Configuration on an IOS−Based SwitchViewing UplinkFast Statistics on an IOS−Based Switch Disabling BackboneFast on a Set/Clear Command−Based Switch How MLS Works Multilayer SwitchingWhy Not Call Them Routers? 227 Prioritizing Traffic Flows ∙ MLS Switching Engine MLS−SE-The switch supporting MLSMLS Components 228 229 MLS Flows 230 Source−Destination−IP Flow Mask Access List Flow MasksDestination−IP Flow Mask 231 IP−Flow Flow Mask MLS Troubleshooting NotesIP Access Lists and MLS Interaction 232 Configuring MLS 233 MLS Cache Aging Timers234 Management Interfaces Configuring an External MLS Route ProcessorVTP Domain MLS Cache Fast Aging Time Enabling Mlsp on an MLS−RP for IPX Enabling Mlsp on an MLS−RP for IPDisabling Mlsp on an MLS−RP for IP Disabling Mlsp on an MLS−RP for IPX Disabling MLS on an External Router Interface Configuring the MLS Switch EngineEnabling MLS on an Individual Interface Re−enabling MLS on a Catalyst Disabling MLS on a Catalyst Configuring the MLS Cache on the CatalystConfiguring Fast Aging on a Catalyst Disabling Fast Aging on a Catalyst Disabling Long Aging on the Catalyst Configuring Long Aging on the CatalystConfiguring Normal Aging on the Catalyst Disabling Normal Aging on the Catalyst Displaying the IP MLS Configuration Monitoring and Viewing the MLS ConfigurationViewing the MLS Aging Configuration on a Catalyst Viewing MLS−RPs Viewing MLS Statistics on the Catalyst Displaying MLS VTP Domain InformationViewing the MLS Vlan Interface Information 241 Viewing MLS Entries 242 Hot Standby Routing Protocol Routing Problems243 Icmp Router Discovery Protocol Routing Information ProtocolProxy ARP 244 Token Ring Standby Groups 255 Solution245 Groups primarily to facilitate load sharing 246 Hsrp States Hsrp Message Format247 Disabling Icmp Redirects Hsrp ConfigurationHsrp Interface Tracking 248 Opening a Session on an Internal Route Processor Entering Configuration Mode on an RSM249 Setting the Hsrp Hello and Hold Timers Assigning a Preempt Delay to a Standby GroupRemoving a Preempt Delay from a Standby Group Assigning an Hsrp Interface Priority Configuring Two Rsfc Interfaces as One Hsrp Group Removing the Hsrp Hello and Hold TimersConfiguring a Clear−Text Password for Hsrp Authentication Here’s what happened Enabling Interface Tracking Using the show standby Command252 Using the debug Command 253 Policy Networking Access Security Policies254 Distribution Layer Policies Core Layer Policies255 Access List Types ∙ Managing Hypertext Transfer Protocol Http accessAccess Lists 256 Access list string as an example 257 List 258 Applying Access Lists To remove a remark, use a command like the following259 Applying Access Lists to Route Filtering 260 Limiting Telnet Access Security at the Access LayerConfiguring Passwords Implementing Privilege Levels Physical Device Security Configuring Banner Messages262 Static MAC Assignment vs. Dynamic MAC Assignment Creating a Standard Access ListVlan Management 263 Creating an Extended Access List 264 265 Applying Access Lists Using distribute−list Applying Access Lists Using access−class266 Implementing Privilege Levels on a 1900EN Configuring a Telnet Session Time−Out ValueConfiguring Line Console Time−Out Values 267 Exec−timeout 5 Configuring Banner MessagesEnabling Http Access 268 Aaa EnableEnabling Port Security Local Displaying the MAC Address Table 271 Cvsm Client Requirements Web ManagementStandard and Enterprise Edition Cvsm 272 Cvsm Default Home Cvsm Access Levels273 Switch Image 274 275 Connecting to the Web Management Console 276 277 278 279 280 Configuring the Switch Port Analyzer 281 282 Main Menu Choices 1900 and 2820 Series SwitchesStandard Edition IOS 283 Console Settings 284 System Menu 285 Let’s look at each option from this menu in more detail IP ConfigurationNetwork Management 286 Snmp Management 287 Cisco Discovery Protocol Snmp Default Trap MessagesBridge − Spanning Tree 288 Cisco Group Management Protocol Port Configuration289 Port Statuses Syntax PortAUI port 290 291 Port Addressing 292 Virtual LAN Port Statistics DetailMonitor 293 Firmware Multicast Registration294 RS−232 Interface 295 Usage Summaries 296 297 ∙ X Exit-This option returns you to the Main Menu Configuring Network Settings on the 1900 and 2820 Series298 Configuring Broadcast Storm Control on Switch Ports 299 Configuring Snmp on the 1900 Series 300 301 302 Related solution Found on Enabling Snmp Contact Configuring Port Monitoring on the Standard Edition IOS303 Configuring VLANs on the Standard Edition IOS 304 305 306 Assigning a Static Vlan to an Interface on a 1900EN Series Configuring Spanning Tree ProtocolSelect E to enable Uplink Fast 307 308 No Power Switch TroubleshootingHardware Troubleshooting 309 Indicator Lights 310 Switched Port Analyzers Switch Cabling311 CiscoWorks for Switched Internetworks Switch Troubleshooting ToolsCable Problems Cross−Over Cables IOS Software Troubleshooting Commands 313 Duplicate MAC Addresses Show configShow cam Show cdp neighbors Show log Show flashShow interface Show mac Show test Viewing the Set/Clear IOS ConfigurationShow system Show version 317 318 319 Viewing the CLI−Based IOS Configuration 320 Viewing the IOS Version Information on a CLI−Based IOS 321 322 Show test module number 323 Viewing the VTP Domain Configuration on a CLI−Based IOS Viewing the VTP Domain Configuration on a Set/Clear IOS324 Viewing the Vlan Configuration on a CLI−Based IOS 325 Viewing the Spanning Tree Configuration on a CLI−Based IOS 326 327 Viewing the CAM MAC Address Table on a CLI−Based IOS 328 Viewing the CDP Neighbors on a CLI−Based IOS Viewing the CDP Neighbors on a Set/Clear Command−Based329 Viewing Port Statistics on a Set/Clear IOS Viewing Individual Port CAM Tables on a CLI−Based IOS330 331 MAC Viewing Port Statistics on a CLI−Based IOS Here is the output using the exception syntax332 Using the show port Command on a CLI−Based IOS Using the Port Configuration on a Set/Clear Command−Based333 Using the show vlan Command on a CLI−Based IOS Using the show vlan Command on a Set/Clear Command−Based334 Using the show interface Command on a CLI−Based IOS 335 Using the show log Command on a Set/Clear Command−Based 336 337 338 339 340 Cisco Group Study and Users Groups Appendix a Study ResourcesBooks Live Cisco Training/Internet−Based Labs/Study Resources Online Resources Spanning Tree Protocol Quality of ServiceStandards Organizations VLANs ∙ it.careershop.com Cisco Job Search Sites344 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 hello346 Establishing Credibility Appendix C The Cisco Consultant347 Come Off As an Expert Designing a Solution348 Total up front Estimating the CostPresenting the Final Proposal and Creating Expectations 349 Way to Fail ContractingDocument, Document, Document 350 Assuming You Know What the Customer Needs Failing to Manage Your Time351 Failing to Take Responsibility Conclusion352 Required Equipment 353 Lab Objectives 354 Configure a password for the switch Possible Solution1912 Basic Configuration 355 Assign Vlan names Enable trunking on this port to always be on356 Catalyst 5000 Basic Configuration 357 Verify the configurations Configuring the Cisco 2621 Interface for ISL Trunking358 Cisco Catalyst Appendix E Switch FeaturesAccess Layer Switches Forwarding rate 370 pps Max MAC addresses 024 048 Forwarding rate 370 pps 360 4MB Dram 8MB 361 12MB Cisco Catalyst 3500 Series XL362 Stackable Yes Forwarding Rate Million pps Cisco Catalyst 3900 Series16MB 363 Up to 8MB Stackable Yes Distribution Layer SwitchesKey Features and Benefits 364 Catalyst 5000 Series Key FeaturesCisco Catalyst 4000 Series 365 Catalyst 6000 Series 366 Core Layer/WAN Switches 367 Catalyst 8400 Modules Catalyst 8400 ServicesCisco Catalyst 8400 Series 368 Network Management Cisco Catalyst 8500 Series369 BPX 8600 Series BPX 8680 Universal Service Node370 MGX 8800 Series Services371 Series Gigabit Switch Routers 372 373 374 375 376 377 378 379 380 381 382 See Institute of Electrical and Electronics Engineers Ieee HubHypertext Transfer Protocol Http Ieee 802.1Q 384 385 386 387 388 389 390 391 392 393 394 395