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Cisco 2950 - Catalyst Switch Configuration Manual Manual pdf 1 page image

Cisco 2950 - Catalyst Switch Configuration Manual

Also see for 2950 - Catalyst Switch: Solution guideSoftware guideProduct bulletinProduct support bulletinMigration guide

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Contents
  1. Table Of Contents
  2. Table Of Contents
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  19. Table Of Contents
  20. Table Of Contents
  21. Table Of Contents
  22. Table Of Contents
  23. Table Of Contents
  24. Table Of Contents
  25. Table Of Contents
  26. related publications
  27. ordering documentation
  28. submitting a service request
  29. obtaining additional publications and information
  30. Features
  31. Chapter 1 Overview
  32. Management Options
  33. Advantages of Using CMS and Clustering Switches
  34. Network Configuration Examples
  35. Small to Medium-Sized Network Configuration
  36. Collapsed Backbone and Switch Cluster Configuration
  37. Hotel Network Configuration
  38. Service-Provider Central-Office Configuration
  39. Large Campus Configuration
  40. Multidwelling Network Using Catalyst 2950 Switches
  41. Long-Distance, High-Bandwidth Transport Configuration
  42. Cisco IOS Command Modes
  43. C H A P T E R 2 Using the Command-Line Interface
  44. Getting Help
  45. Abbreviating Commands
  46. Understanding CLI Messages
  47. Recalling Commands
  48. Editing Commands through Keystrokes
  49. Editing Command Lines that Wrap
  50. Searching and Filtering Output of show and more Commands
  51. Accessing the CLI from a Browser
  52. Understanding Catalyst 2955 Switch Alarms
  53. C H A P T E R 3 Configuring Catalyst 2955 Switch Alarms
  54. Port Status Monitoring Alarms
  55. Configuring Catalyst 2955 Switch Alarms
  56. Configuring the Power Supply Alarm
  57. Configuring the Switch Temperature Alarms
  58. Associating the Temperature Alarms to a Relay
  59. Setting the FCS Error Threshold
  60. Configuring Alarm Profiles
  61. Attaching an Alarm Profile to a Specific Port
  62. Enabling SNMP Traps
  63. Understanding CMS
  64. Chapter 4 Getting Started with CM
  65. Online Help
  66. Expert Mode
  67. Privilege Levels
  68. CMS Requirements
  69. CMS Plug-In
  70. Specifying an HTTP Port (Nondefault Configuration Only)
  71. Front Panel View
  72. Topology View
  73. CMS Icons
  74. Understanding the Boot Process
  75. Assigning Switch Information
  76. C H A P T E R 5 Assigning the Switch IP Address and Default Gateway
  77. DHCP Client Request Process
  78. Configuring DHCP-Based Autoconfiguration
  79. Configuring the TFTP Server
  80. Configuring the DNS
  81. Obtaining Configuration Files
  82. Example Configuration
  83. Manually Assigning IP Information
  84. Checking and Saving the Running Configuration
  85. Default Boot Configuration
  86. Booting Manually
  87. Controlling Environment Variables
  88. Scheduling a Reload of the Software Image
  89. Displaying Scheduled Reload Information
  90. Understanding IE2100 Series Configuration Registrar Software
  91. Chapter 6 Configuring IE2100 CN Agent
  92. CNS Event Service
  93. DeviceID
  94. Understanding CNS Embedded Agents
  95. Incremental (Partial) Configuration
  96. Enabling the CNS Event Agent
  97. Enabling the CNS Configuration Agent
  98. Enabling a Partial Configuration
  99. Displaying CNS Configuration
  100. Chapter 7 Clustering Switche
  101. Command Switch Characteristics
  102. Candidate Switch and Member Switch Characteristics
  103. Planning a Switch Cluster
  104. Discovery through CDP Hops
  105. Discovery through Non-CDP-Capable and Noncluster-Capable Devices
  106. Discovery through the Same Management VLAN
  107. Discovery through Different Management VLANs
  108. Discovery of Newly Installed Switches
  109. HSRP and Standby Command Switches
  110. Virtual IP Addresses
  111. Automatic Recovery of Cluster Configuration
  112. Host Names
  113. TACACS+ and RADIUS
  114. LRE Profiles
  115. Creating a Switch Cluster
  116. Adding Member Switches
  117. Creating a Cluster Standby Group
  118. Verifying a Switch Cluster
  119. Using the CLI to Manage Switch Clusters
  120. Catalyst 1900 and Catalyst 2820 CLI Considerations
  121. Managing the System Time and Date
  122. Chapter 8 Administering the Switch
  123. Configuring NTP
  124. Default NTP Configuration
  125. Configuring NTP Associations
  126. Configuring NTP Broadcast Service
  127. Configuring NTP Access Restrictions
  128. Configuring the Source IP Address for NTP Packets
  129. Displaying the NTP Configuration
  130. Setting the System Clock
  131. Configuring the Time Zone
  132. Configuring Summer Time (Daylight Saving Time)
  133. Configuring a System Name and Prompt
  134. Configuring a System Prompt
  135. Default DNS Configuration
  136. Displaying the DNS Configuration
  137. Configuring a Message-of-the-Day Login Banner
  138. Configuring a Login Banner
  139. Building the Address Table
  140. Default MAC Address Table Configuration
  141. Removing Dynamic Address Entries
  142. Adding and Removing Static Address Entries
  143. Configuring Unicast MAC Address Filtering
  144. Displaying Address Table Entries
  145. Preventing Unauthorized Access to Your Switch
  146. C H A P T E R 9 Configuring Switch-Based Authentication
  147. Setting or Changing a Static Enable Password
  148. Protecting Enable and Enable Secret Passwords with Encryption
  149. Disabling Password Recovery
  150. Setting a Telnet Password for a Terminal Line
  151. Configuring Username and Password Pairs
  152. Configuring Multiple Privilege Levels
  153. Changing the Default Privilege Level for Lines
  154. Logging into and Exiting a Privilege Level
  155. TACACS+ Operation
  156. Default TACACS+ Configuration
  157. Configuring TACACS+ Login Authentication
  158. Configuring TACACS+ Authorization for Privileged EXEC Access and Network Services
  159. Starting TACACS+ Accounting
  160. Controlling Switch Access with RADIUS
  161. RADIUS Operation
  162. Configuring RADIUS
  163. Identifying the RADIUS Server Host
  164. Configuring RADIUS Login Authentication
  165. Defining AAA Server Groups
  166. Configuring RADIUS Authorization for User Privileged Access and Network Services
  167. Starting RADIUS Accounting
  168. Configuring Settings for All RADIUS Servers
  169. Configuring the Switch for Vendor-Proprietary RADIUS Server Communication
  170. Displaying the RADIUS Configuration
  171. Configuring the Switch for Local Authentication and Authorization
  172. Configuring the Switch for Secure Shell
  173. Limitations
  174. Cryptographic Software Image Guidelines
  175. Configuring the SSH Server
  176. Displaying the SSH Configuration and Status
  177. Understanding 802.1x Port-Based Authentication
  178. C H A P T E R 10 Configuring 802.1x Port-Based Authentication
  179. Authentication Initiation and Message Exchange
  180. Ports in Authorized and Unauthorized States
  181. x Accounting
  182. Using 802.1x with Port Security
  183. Using 802.1x with Voice VLAN Ports
  184. Using 802.1x with Guest VLAN
  185. Configuring 802.1x Authentication
  186. x Configuration Guidelines
  187. Upgrading from a Previous Software Release
  188. Configuring the Switch-to-RADIUS-Server Communication
  189. Enabling Periodic Re-Authentication
  190. Manually Re-Authenticating a Client Connected to a Port
  191. Setting the Switch-to-Client Frame-Retransmission Number
  192. Configuring the Host Mode
  193. Configuring a Guest VLAN
  195. Configuring 802.1x Accounting
  196. Displaying 802.1x Statistics and Status
  197. Understanding Interface Types
  198. C H A P T E R 11 Configuring Interface Characteristics
  199. Port-Based VLANs
  200. Connecting Interfaces
  201. Procedures for Configuring Interfaces
  202. Configuring and Using Interface-Range Macros
  203. Configuring Ethernet Interfaces
  204. Default Ethernet Interface Configuration
  205. Configuring Interface Speed and Duplex Mode
  206. Setting the Interface Speed and Duplex Parameters on a Non-LRE Switch Port
  207. Configuring Media Types for Gigabit Ethernet Interfaces on LRE Switches
  208. Adding a Description for an Interface
  209. Monitoring Interface and Controller Status
  210. Clearing and Resetting Interfaces and Counters
  211. Shutting Down and Restarting the Interface
  212. Understanding Smartports Macros
  213. C H A P T E R 12 Configuring Smartports Macros
  214. Smartports Macro Configuration Guidelines
  215. Creating Smartports Macros
  216. Applying Smartports Macros
  217. Applying Cisco-default Smartports Macros
  218. Displaying Smartports Macros
  219. Understanding LRE Features
  220. Chapter 13 Configuring LRE
  221. LRE Sequences
  222. CPE Ethernet Links
  223. LRE Link Monitor
  224. LRE Message Logging Process
  225. Default LRE Configuration
  226. Guidelines for Using LRE Profiles
  227. CPE Ethernet Link Guidelines
  228. Guidelines for Configuring Cisco 585 LRE CPEs
  229. Assigning a Profile to a Specific LRE Port
  230. Assigning a Sequence to a Specific LRE Port
  231. Precedence
  232. Link Qualification and SNR Margins
  233. Configuring LRE Link Persistence
  234. Configuring LRE Link Monitor
  235. Configuring Upstream Power Back-Off
  236. Configuring CPE Toggle
  237. Upgrading LRE Switch Firmware
  238. Configuring for an LRE Upgrade
  239. Global Configuration of LRE Upgrades
  240. LRE Upgrade Details
  241. Displaying LRE Status
  242. Understanding Spanning-Tree Features
  243. Chapter 14 Configuring STP
  244. Spanning-Tree Topology and BPDUs
  245. Bridge ID, Switch Priority, and Extended System ID
  246. Blocking State
  247. Disabled State
  248. Spanning Tree and Redundant Connectivity
  249. Spanning-Tree Modes and Protocols
  250. Spanning-Tree Interoperability and Backward Compatibility
  251. Configuring Spanning-Tree Features
  252. Spanning-Tree Configuration Guidelines
  253. Changing the Spanning-Tree Mode
  254. Disabling Spanning Tree
  255. Configuring a Secondary Root Switch
  256. Configuring the Port Priority
  257. Configuring the Path Cost
  258. Configuring the Switch Priority of a VLAN
  259. Configuring Spanning-Tree Timers
  260. Configuring the Forwarding-Delay Time for a VLAN
  261. Configuring Spanning Tree for Use in a Cascaded Stack
  262. Displaying the Spanning-Tree Status
  263. configuring mstp
  264. Chapter 15 Configuring MSTP
  265. Operations Within an MST Region
  266. Hop Count
  267. Boundary Ports
  268. Understanding RSTP
  269. Rapid Convergence
  270. Synchronization of Port Roles
  271. Bridge Protocol Data Unit Format and Processing
  272. Processing Superior BPDU Information
  273. Configuring MSTP Features
  274. Default MSTP Configuration
  275. Specifying the MST Region Configuration and Enabling MSTP
  276. Configuring the Root Switch
  280. Configuring the Switch Priority
  281. Configuring the Forwarding-Delay Time
  282. Configuring the Maximum-Aging Time
  283. Specifying the Link Type to Ensure Rapid Transitions
  284. Displaying the MST Configuration and Status
  285. Understanding Optional Spanning-Tree Features
  286. C H A P T E R 16 Configuring Optional Spanning-Tree Features
  287. Understanding BPDU Filtering
  288. Understanding Cross-Stack UplinkFast
  289. Events that Cause Fast Convergence
  290. Connecting the Stack Ports
  291. Understanding BackboneFast
  292. Understanding EtherChannel Guard
  293. Understanding Loop Guard
  294. Default Optional Spanning-Tree Configuration
  295. Enabling BPDU Guard
  296. Enabling BPDU Filtering
  297. Enabling UplinkFast for Use with Redundant Links
  298. Enabling Cross-Stack UplinkFast
  299. Enabling BackboneFast
  300. Enabling Root Guard
  302. Understanding VLANs
  303. Chapter 17 Configuring VLAN
  304. VLAN Port Membership Modes
  305. Configuring Normal-Range VLANs
  306. Token Ring VLANs
  307. VLAN Configuration Mode Options
  308. Saving VLAN Configuration
  309. Creating or Modifying an Ethernet VLAN
  310. Deleting a VLAN
  311. Assigning Static-Access Ports to a VLAN
  312. Configuring Extended-Range VLANs
  313. Creating an Extended-Range VLAN
  314. Displaying VLANs
  315. Configuring VLAN Trunks
  316. Q Configuration Considerations
  317. Default Layer 2 Ethernet Interface VLAN Configuration
  318. Interaction with Other Features
  319. Defining the Allowed VLANs on a Trunk
  320. Changing the Pruning-Eligible List
  321. Configuring the Native VLAN for Untagged Traffic
  322. Load Sharing Using STP
  323. Load Sharing Using STP Path Cost
  324. Configuring VMPS
  325. Dynamic Port VLAN Membership
  326. Default VMPS Client Configuration
  327. Configuring the VMPS Client
  328. Reconfirming VLAN Memberships
  329. Changing the Retry Count
  330. Troubleshooting Dynamic Port VLAN Membership
  331. Understanding VTP
  332. Chapter 18 Configuring VTP
  333. VTP Modes
  334. VTP Version 2
  335. Configuring VTP
  336. VTP Configuration Options
  337. VTP Configuration Guidelines
  338. VTP Version
  339. Configuring a VTP Client
  340. Disabling VTP (VTP Transparent Mode)
  341. Enabling VTP Version 2
  342. Enabling VTP Pruning
  343. Monitoring VTP
  344. Understanding Voice VLAN
  345. Chapter 19 Configuring Voice VLAN
  346. Voice VLAN Configuration Guidelines
  347. Configuring Ports to Carry Voice Traffic in 802.1Q Frames
  348. Overriding the CoS Priority of Incoming Data Frames
  349. Configuring the IP Phone to Trust the CoS Priority of Incoming Data Frames
  350. configuring dhcp features
  351. Chapter 20 Configuring DHCP Feature
  352. DHCP Server
  353. default dhcp configuration
  354. Configuring DHCP Features
  355. enabling dhcp snooping and option 82
  356. Displaying DHCP Information
  357. Understanding IGMP Snooping
  358. Chapter 21 Configuring IGMP Snooping and MVR
  359. Joining a Multicast Group
  360. Leaving a Multicast Group
  361. Immediate-Leave Processing
  362. Configuring IGMP Snooping
  363. Enabling or Disabling IGMP Snooping
  364. Setting the Snooping Method
  365. Configuring a Multicast Router Port
  366. Configuring a Host Statically to Join a Group
  367. Disabling IGMP Report Suppression
  368. Configuring the Aging Time
  369. Displaying IGMP Snooping Information
  370. Understanding Multicast VLAN Registration
  371. Using MVR in a Multicast Television Application
  372. Configuring MVR
  373. Configuring MVR Global Parameters
  374. Configuring MVR Interfaces
  375. Displaying MVR Information
  376. Default IGMP Filtering and Throttling Configuration
  377. Applying IGMP Profiles
  378. Setting the Maximum Number of IGMP Groups
  379. Displaying IGMP Filtering and Throttling Configuration
  380. Configuring Storm Control
  381. Understanding Storm Control
  382. C H A P T E R 22 Configuring Port-Based Traffic Control
  383. Disabling Storm Control
  384. Configuring Port Blocking
  385. Resuming Normal Forwarding on a Port
  386. Configuring Port Security
  387. Security Violations
  388. Default Port Security Configuration
  389. Enabling and Configuring Port Security
  390. Enabling and Configuring Port Security Aging
  391. Displaying Port-Based Traffic Control Settings
  392. Understanding UDLD
  393. Chapter 23 Configuring UDLD
  394. Configuring UDLD
  395. Enabling UDLD Globally
  396. Resetting an Interface Shut Down by UDLD
  397. Displaying UDLD Status
  398. Understanding CDP
  399. Configuring CDP
  400. Chapter 24 Configuring CDP
  401. Disabling and Enabling CDP on an Interface
  402. Monitoring and Maintaining CDP
  403. Understanding SPAN and RSPAN
  404. Chapter 25 Configuring SPAN and RSPAN
  405. SPAN and RSPAN Concepts and Terminology
  406. Source Port
  407. Reflector Port
  408. SPAN and RSPAN Session Limits
  409. Default SPAN and RSPAN Configuration
  410. Creating a SPAN Session and Specifying Ports to Monitor
  411. Creating a SPAN Session and Enabling Ingress Traffic
  412. Removing Ports from a SPAN Session
  413. Configuring RSPAN
  414. Configuring a VLAN as an RSPAN VLAN
  415. Creating an RSPAN Destination Session
  416. Removing Ports from an RSPAN Session
  417. Displaying SPAN and RSPAN Status
  418. Understanding RMON
  419. Chapter 26 Configuring RMON
  420. Default RMON Configuration
  421. Configuring RMON Collection on an Interface
  422. Displaying RMON Status
  423. Understanding System Message Logging
  424. Configuring System Message Logging
  425. C H A P T E R 27 Configuring System Message Logging
  426. Disabling and Enabling Message Logging
  427. Synchronizing Log Messages
  428. Enabling and Disabling Timestamps on Log Messages
  429. Enabling and Disabling Sequence Numbers in Log Messages
  430. Limiting Syslog Messages Sent to the History Table and to SNMP
  431. Configuring UNIX Syslog Servers
  432. Displaying the Logging Configuration
  433. Understanding SNMP
  434. Chapter 28 Configuring SNMP
  435. SNMP Manager Functions
  436. SNMP Agent Functions
  437. SNMP Notifications
  438. Default SNMP Configuration
  439. Disabling the SNMP Agent
  440. Configuring SNMP Groups and Users
  441. Configuring SNMP Notifications
  442. Setting the Agent Contact and Location Information
  443. SNMP Examples
  444. Displaying SNMP Status
  445. Understanding ACLs
  446. C H A P T E R 29 Configuring Network Security with ACLs
  447. Understanding Access Control Parameters
  448. Guidelines for Applying ACLs to Physical Interfaces
  449. Configuring ACLs
  450. Unsupported Features
  451. ACL Numbers
  452. Creating a Numbered Standard ACL
  453. Creating a Numbered Extended ACL
  454. Creating Named Standard and Extended ACLs
  455. Applying Time Ranges to ACLs
  456. Including Comments About Entries in ACLs
  457. Creating Named MAC Extended ACLs
  458. Creating MAC Access Groups
  459. Applying ACLs to a Terminal Line
  460. Displaying ACL Information
  461. Displaying Access Groups
  462. Examples for Compiling ACLs
  463. Numbered ACL Examples
  464. configuring qos
  465. Chapter 30 Configuring Qo
  466. Basic QoS Model
  467. Classification
  468. Classification Based on Class Maps and Policy Maps
  469. Policing and Marking
  470. Mapping Tables
  471. Egress CoS Queues
  472. Generated Auto-QoS Configuration
  473. Effects of Auto-QoS on the Configuration
  474. Enabling Auto-QoS for VoIP
  475. Displaying Auto-QoS Information
  476. Auto-QoS Configuration Example
  477. Configuring Standard QoS
  478. Configuration Guidelines
  479. Configuring Classification Using Port Trust States
  480. Configuring the CoS Value for an Interface
  481. Enabling Pass-Through Mode
  482. Configuring a QoS Policy
  483. Classifying Traffic by Using ACLs
  484. Classifying Traffic by Using Class Maps
  485. Classifying, Policing, and Marking Traffic by Using Policy Maps
  486. Configuring CoS Maps
  487. Configuring the CoS-to-DSCP Map
  488. Configuring the DSCP-to-CoS Map
  489. Configuring the Egress Queues
  490. Configuring WRR Priority
  491. Displaying Standard QoS Information
  492. QoS Configuration for the Existing Wiring Closet
  493. QoS Configuration for the Intelligent Wiring Closet
  494. Understanding EtherChannels
  495. C H A P T E R 31 Configuring EtherChannels
  496. Understanding the Port Aggregation Protocol and Link Aggregation Protocol
  497. PAgP and LACP Modes
  498. Physical Learners and Aggregate-Port Learners
  499. PAgP and LACP Interaction with Other Features
  500. Configuring EtherChannels
  501. Default EtherChannel Configuration
  502. Configuring Layer 2 EtherChannels
  503. Configuring EtherChannel Load Balancing
  504. Configuring the PAgP Learn Method and Priority
  505. Configuring Hot Standby Ports
  506. Displaying EtherChannel, PAgP, and LACP Status
  507. Using Recovery Procedures
  508. Chapter 32 Troubleshooting
  509. Recovering from Lost or Forgotten Passwords on Catalyst 2950 LRE Switches
  510. Password Recovery with Password Recovery Enabled
  511. Procedure with Password Recovery Disabled
  512. Recovering from Lost or Forgotten Passwords on Catalyst 2955 Switches
  513. Recovering from a Command Switch Failure
  514. Replacing a Failed Command Switch with a Cluster Member
  515. Replacing a Failed Command Switch with Another Switch
  516. Recovering from Lost Member Connectivity
  517. Diagnosing Connectivity Problems
  518. Using Layer 2 Traceroute
  519. Usage Guidelines
  520. Displaying the Physical Path
  521. Using Debug Commands
  522. Enabling Debugging on a Specific Feature
  523. Redirecting Debug and Error Message Output
  524. Using the show controllers Commands
  525. Using the crashinfo File
  526. supported mibs
  527. Appendix A Supported MIB
  528. using ftp to access the mib files
  529. Using FTP to Access the MIB Files
  530. Working with the Flash File System
  531. Displaying Available File Systems
  532. A P P E N D I X B Working with the Cisco IOS File System, Configuration Files, and Software Images
  533. Changing Directories and Displaying the Working Directory
  534. Copying Files
  535. Creating, Displaying, and Extracting tar Files
  536. Displaying the Contents of a tar File
  537. Displaying the Contents of a File
  538. Guidelines for Creating and Using Configuration Files
  539. Configuration File Types and Location
  540. Preparing to Download or Upload a Configuration File By Using TFTP
  541. Uploading the Configuration File By Using TFTP
  542. Preparing to Download or Upload a Configuration File By Using FTP
  543. Uploading a Configuration File By Using FTP
  544. Copying Configuration Files By Using RCP
  545. Preparing to Download or Upload a Configuration File By Using RCP
  546. Downloading a Configuration File By Using RCP
  547. Uploading a Configuration File By Using RCP
  548. Clearing Configuration Information
  549. Image Location on the Switch
  550. Copying Image Files By Using TFTP
  551. Downloading an Image File By Using TFTP
  552. Uploading an Image File By Using TFTP
  553. Copying Image Files By Using FTP
  554. Downloading an Image File By Using FTP
  555. Uploading an Image File By Using FTP
  556. Copying Image Files By Using RCP
  557. Downloading an Image File By Using RCP
  558. Uploading an Image File By Using RCP
Cisco 2950 - Catalyst Switch Configuration Manual Manual pdf 1 page image
Corporate HeadquartersCisco Systems, Inc.170 West Tasman DriveSan Jose, CA 95134-1706USAhttp://www.cisco.comTel: 408 526-4000800 553-NETS (6387)Fax: 408 526-4100Catalyst 2950 and Catalyst 2955 SwitchSoftware Configuration GuideCisco IOS Release 12.1(20)EA2May 2004Customer Order Number: DOC-7811380=Text Part Number: 78-11380-10
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2950 - Catalyst SwitchCatalyst 2955 Series
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