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Cisco 2950 - Catalyst Switch

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7-25

Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide

78-11380-10

Chapter 7 Clustering Switches

Using SNMP to Manage Switch Clusters

Figure 7-14 SNMP Management for a Cluster

Tra p

Tra p

Tra p

Command switch

Trap 1, Trap 2, Trap 3

Member 1 Member 2 Member 3

33020

SNMP Manager

Table of Contents

Default Chapter3
- Table of Contents3
- Obtaining Documentation31
  - Ordering Documentation32
- Related Publications31
- Documentation Feedback32
- Obtaining Technical Assistance32
  - Submitting a Service Request33
  - Definitions of Service Request Severity33
- Obtaining Additional Publications and Information34
- Features35
Chapter 1 Overview36
Chapter 2 Using the Command-Line Interface42
- Management Options42
  - Management Interface Options42
  - Advantages of Using CMS and Clustering Switches43
- Network Configuration Examples44
- Cisco IOS Command Modes57
- Getting Help59
- Abbreviating Commands60
- Using no and Default Forms of Commands60
- Understanding CLI Messages61
- Using Command History61
- Using Editing Features62
- Searching and Filtering Output of Show and more Commands65
- Accessing the CLI65
- Accessing the CLI from a Browser66
CHAPTER 3 Configuring Catalyst 2955 Switch Alarms67
- Understanding Catalyst 2955 Switch Alarms67
- Configuring Catalyst 2955 Switch Alarms69
- Displaying Catalyst 2955 Switch Alarms Status77
Chapter 4 Getting Started with CMS79
- Understanding CMS79
- Configuring CMS85
- Displaying CMS88
- Where to Go Next93
Chapter 5 Assigning the Switch IP Address and Default Gateway95
- Understanding the Boot Process95
- Assigning Switch Information96
- Checking and Saving the Running Configuration105
- Modifying the Startup Configuration105
- Scheduling a Reload of the Software Image110
  - Configuring a Scheduled Reload110
  - Displaying Scheduled Reload Information111
Chapter 6 Configuring IE2100 CNS Agents113
- Understanding IE2100 Series Configuration Registrar Software113
- Understanding CNS Embedded Agents117
- Configuring CNS Embedded Agents118
- Displaying CNS Configuration125
Chapter 7 Clustering Switches127
- Understanding Switch Clusters128
- Planning a Switch Cluster131
- Creating a Switch Cluster144
- Using the CLI to Manage Switch Clusters149
  - Catalyst 1900 and Catalyst 2820 CLI Considerations150
- Using SNMP to Manage Switch Clusters150
- Managing the System Time and Date153
Chapter 8 Administering the Switch154
- Understanding Network Time Protocol154
- Configuring NTP155
- Configuring Time and Date Manually163
- Configuring a System Name and Prompt168
- Creating a Banner171
- Managing the MAC Address Table173
- Managing the ARP Table180
Configuring Switch-Based Authentication181
- Preventing Unauthorized Access to Your Switch181
- C H a P T E R 9 Configuring Switch-Based Authentication182
- Protecting Access to Privileged EXEC Commands182
- Controlling Switch Access with TACACS190
- Controlling Switch Access with RADIUS198
- Configuring the Switch for Local Authentication and Authorization212
- Configuring the Switch for Secure Shell213
CHAPTER 10 Configuring 802.1X Port-Based Authentication220
- Understanding 802.1X Port-Based Authentication220
- Configuring 802.1X Authentication227
- Displaying 802.1X Statistics and Status239
Chapter 11 Configuring Interface Characteristics241
- Understanding Interface Types241
- Using the Interface Command244
- Configuring Ethernet Interfaces248
- Monitoring and Maintaining the Interfaces255
Chapter 12 Configuring Smartports Macros259
- Understanding Smartports Macros259
- Configuring Smartports Macros260
- Displaying Smartports Macros266
- Configuring LRE267
- Understanding LRE Features267
  - Ports on the Catalyst 2950 LRE Switches267
Chapter 13 Configuring LRE268
- LRE Links and LRE Profiles268
- LRE Link Monitor273
- LRE Message Logging Process274
- Configuring LRE Ports274
- Upgrading LRE Switch Firmware289
- Displaying LRE Status293
- Configuring STP295
- Understanding Spanning-Tree Features295
Chapter 14 Configuring STP296
- STP Overview296
- Spanning-Tree Topology and Bpdus297
- Bridge ID, Switch Priority, and Extended System ID298
- Spanning-Tree Interface States298
- How a Switch or Port Becomes the Root Switch or Root Port301
- Spanning Tree and Redundant Connectivity302
- Spanning-Tree Address Management302
- Accelerated Aging to Retain Connectivity302
- Spanning-Tree Modes and Protocols303
- Supported Spanning-Tree Instances303
- Spanning-Tree Interoperability and Backward Compatibility304
- STP and IEEE 802.1Q Trunks304
- Configuring Spanning-Tree Features305
- Displaying the Spanning-Tree Status318
Chapter 15 Configuring MSTP319
- Understanding MSTP320
- Understanding RSTP324
- Configuring MSTP Features329
- Displaying the MST Configuration and Status341
CHAPTER 16 Configuring Optional Spanning-Tree Features343
- Understanding Optional Spanning-Tree Features343
- Configuring Optional Spanning-Tree Features354
- Displaying the Spanning-Tree Status362
- Understanding Vlans363
Chapter 17 Configuring VLAN364
- Supported Vlans364
- VLAN Port Membership Modes365
- Configuring Normal-Range Vlans366
- Configuring Extended-Range Vlans374
- Displaying Vlans376
- Configuring VLAN Trunks377
- Configuring VMPS387
- Configuring VTP395
- Understanding VTP395
Chapter 18 Configuring VTP396
- The VTP Domain396
- VTP Modes397
- VTP Advertisements397
- VTP Version 2398
- VTP Pruning398
- Configuring VTP398
- Monitoring VTP410
Chapter 19 Configuring Voice VLAN411
- Understanding Voice VLAN411
- Configuring Voice VLAN412
- Displaying Voice VLAN416
Configuring Dhcp Features417
- Understanding DHCP Features417
Chapter 20 Configuring DHCP Feature418
- Option-82 Data Insertion419
- Configuring DHCP Features421
- Displaying DHCP Information424
  - Displaying a Binding Table424
  - Displaying the DHCP Snooping Configuration424
- Understanding IGMP Snooping425
Chapter 21 Configuring IGMP Snooping and MVR426
- IGMP Versions426
- Joining a Multicast Group427
- Leaving a Multicast Group428
- Immediate-Leave Processing429
- IGMP Report Suppression429
- Source-Only Networks429
- Configuring IGMP Snooping430
- Displaying IGMP Snooping Information437
- Understanding Multicast VLAN Registration438
  - Using MVR in a Multicast Television Application439
- Configuring MVR441
- Displaying MVR Information445
- Configuring IGMP Filtering and Throttling445
- Displaying IGMP Filtering and Throttling Configuration451
CHAPTER 22 Configuring Port-Based Traffic Control453
- Configuring Storm Control453
- Configuring Protected Ports456
- Configuring Port Blocking457
  - Blocking Flooded Traffic on an Interface457
  - Resuming Normal Forwarding on a Port458
- Configuring Port Security459
- Displaying Port-Based Traffic Control Settings465
Chapter 23 Configuring UDLD467
- Understanding UDLD467
  - Modes of Operation467
  - Methods to Detect Unidirectional Links468
- Configuring UDLD470
- Displaying UDLD Status473
Chapter 24 Configuring CDP475
- Understanding CDP475
- Configuring CDP476
- Monitoring and Maintaining CDP479
Chapter 25 Configuring SPAN and RSPAN481
- Understanding SPAN and RSPAN481
- Configuring SPAN487
- Configuring RSPAN492
- Displaying SPAN and RSPAN Status497
Chapter 26 Configuring RMON499
- Understanding RMON499
- Configuring RMON500
- Displaying RMON Status504
Chapter 27 Configuring System Message Logging505
- Understanding System Message Logging505
- Configuring System Message Logging506
- Displaying the Logging Configuration517
Chapter 28 Configuring SNMP519
- Understanding SNMP519
- Configuring SNMP523
- Displaying SNMP Status534
Chapter 29 Configuring Network Security with Acls535
- Understanding Acls536
- Configuring Acls540
- Applying Acls to Terminal Lines or Physical Interfaces553
  - Applying Acls to a Terminal Line554
  - Applying Acls to a Physical Interface554
- Displaying ACL Information555
  - Displaying Acls555
  - Displaying Access Groups556
- Examples for Compiling Acls557
Configuring Qos561
Chapter 30 Configuring Qo562
- Understanding Qos562
- Configuring Auto-Qos569
- Displaying Auto-Qos Information575
- Auto-Qos Configuration Example576
- Configuring Standard Qos578
- Displaying Standard Qos Information599
- Standard Qos Configuration Examples599
  - Qos Configuration for the Existing Wiring Closet600
  - Qos Configuration for the Intelligent Wiring Closet601
Chapter 31 Configuring Etherchannels603
- Understanding Etherchannels603
- Configuring Etherchannels609
- Displaying Etherchannel, Pagp, and LACP Status616
Chapter 32 Troubleshooting617
- Using Recovery Procedures617
- Preventing Autonegotiation Mismatches630
- GBIC and SFP Module Security and Identification630
- Diagnosing Connectivity Problems631
  - Using Ping631
    - Understanding Ping631
    - Executing Ping631
  - Using Layer 2 Traceroute632
- Diagnosing LRE Connection Problems634
- Using Debug Commands635
- Using the Show Controllers Commands638
- Using the Crashinfo File639
Appendix641
Supported Mibs641
- MIB List641
Appendix A Supported MIB642
- MIB List642
- Using FTP to Access the MIB Files643
Appendix645
Working with the Cisco IOS File System, Configuration Files, and Software Images645
- Working with the Flash File System645
- Working with Configuration Files652
- Working with Software Images663
I N D E X677

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