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2950 24 - Catalyst Switch
Cisco 2950 24 - Catalyst Switch Manuals
Manuals and User Guides for Cisco 2950 24 - Catalyst Switch. We have
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Cisco 2950 24 - Catalyst Switch manuals available for free PDF download: Software Manual, Hardware Installation Manual
Cisco 2950 24 - Catalyst Switch Software Manual (376 pages)
Desktop Switch Software Configuration Guide
Brand:
Cisco
| Category:
Switch
| Size: 4.75 MB
Table of Contents
Table of Contents
3
Link
4
Port Priority
14
Preface
17
Audience
17
Purpose
17
Organization
18
Conventions
19
Related Publications
20
Obtaining Documentation
20
World Wide Web
20
Documentation CD-ROM
21
Ordering Documentation
21
Documentation Feedback
21
Obtaining Technical Assistance
21
Cisco.com
22
Technical Assistance Center
22
Cisco TAC Web Site
22
Cisco TAC Escalation Center
23
Chapter 1 Overview
25
Features
25
Overview
26
Port Fast
28
Management Options
30
Management Interface Options
30
Advantages of Using CMS and Clustering Switches
31
Network Configuration Examples
32
Design Concepts for Using the Switch
32
Small to Medium-Sized Network Configuration
34
Collapsed Backbone and Switch Cluster Configuration
36
Large Campus Configuration
37
Getting Started with CMS
40
Features
40
Front Panel View
40
Cluster Tree
43
Front-Panel Images
44
Redundant Power System LED
45
Port Modes and Leds
46
VLAN Membership Modes
47
Topology View
48
Topology Icons
50
Device and Link Labels
51
Colors in the Topology View
52
Topology Display Options
52
Menus and Toolbar
53
Menu Bar
53
Tabs, CMS
54
Management VLAN
56
Toolbar
58
Front Panel View Popup Menus
59
Device Popup Menu
59
Port Popup Menu
59
Topology View Popup Menus
60
Link Popup Menu
60
Device Popup Menus
61
Interaction Modes
63
Guide Mode
63
Expert Mode
63
Wizards
64
Tool Tips
64
Online Help
65
CMS Window Components
66
Host Name List
66
Tabs, Lists, and Tables
67
Icons Used in Windows
67
Buttons
67
Accessing CMS
68
Access Modes in CMS
69
Verifying Your Changes
70
Change Notification
70
Error Checking
70
Saving Your Changes
70
Using Different Versions of CMS
71
Where to Go Next
71
CHAPTER 3 Using the Command-Line Interface
73
IOS Command Modes
73
List of
73
IOS Command Modes
74
C H a P T E R 3 Using the Command-Line Interface
74
Getting Help
75
Abbreviating Commands
75
Using no and Default Forms of Commands
76
Understanding CLI Messages
76
Using Command History
77
Changing the Command History Buffer Size
77
Recalling Commands
77
Disabling the Command History Feature
77
Using Editing Features
78
Enabling and Disabling Editing Features
78
Editing Commands through Keystrokes
78
Editing Command Lines that Wrap
79
Searching and Filtering Output of Show and more Commands
80
Accessing the CLI
81
Accessing the CLI from a Browser
81
Saving Configuration Changes
82
Where to Go Next
82
Chapter 4 General Switch Administration
83
Basic IP Connectivity to the Switch
83
Switch Software Releases
84
Console Port Access
84
Telnet Access to the CLI
84
HTTP Access to CMS
85
SNMP Network Management Platforms
86
SNMP Versions
86
Using FTP to Access the MIB Files
87
Using SNMP to Access MIB Variables
87
Default Settings
88
Switch Port Analyzer
92
Chapter 5 Clustering Switches
95
Switch Clusters
95
Understanding Switch Clusters
96
Command Switch Characteristics
96
Standby Command Switch Characteristics
97
Candidate and Member Switches Characteristics
97
Planning a Switch Cluster
98
Automatic Discovery of Cluster Candidates and Members
98
Discovery through CDP Hops
98
LRE Profiles
98
Discovery through Non-CDP-Capable and Noncluster-Capable Devices
100
Discovery through the same Management VLAN
101
Discovery through Different Management Vlans
102
Discovery of Newly Installed Switches
103
HSRP and Standby Command Switches
104
Automatic Recovery of Cluster Configuration
105
Virtual IP Addresses
105
Considerations for Cluster Standby Groups
106
IP Addresses
107
Host Names
108
Passwords
108
SNMP Community Strings
108
Tacacs
109
Access Modes in CMS
109
Management VLAN
109
Availability of Switch-Specific Features in Switch Clusters
110
Creating a Switch Cluster
110
Enabling a Command Switch
111
Adding Member Switches
112
Creating a Cluster Standby Group
114
Verifying a Switch Cluster
116
LRE Profiles
110
Using the CLI to Manage Switch Clusters
117
Catalyst 1900 and Catalyst 2820 CLI Considerations
117
Using SNMP to Manage Switch Clusters
118
Chapter 6 Configuring the System
119
Changing IP Information
119
Manually Assigning and Removing Switch IP Information
120
Using DHCP-Based Autoconfiguration
120
Understanding DHCP-Based Autoconfiguration
121
DHCP Client Request Process
121
Configuring the DHCP Server
122
Configuring the TFTP Server
123
Configuring the Domain Name and the DNS
123
Configuring the Relay Device
124
Obtaining Configuration Files
125
Example Configuration
126
Changing the Password
128
Setting the System Date and Time
129
Configuring Daylight Saving Time
129
Configuring the Network Time Protocol
129
Configuring the Switch as an NTP Client
129
Enabling NTP Authentication
129
Configuring the Switch for NTP Broadcast-Client Mode
130
Configuring SNMP
130
Disabling and Enabling SNMP
130
Entering Community Strings
130
Adding Trap Managers
130
Configuring CDP
131
Configuring CDP for Extended Discovery
132
Managing the ARP Table
132
Managing the MAC Address Tables
133
MAC Addresses and Vlans
133
Changing the Address Aging Time
134
Removing Dynamic Address Entries
134
MAC Address Notification
135
Enabling Notification of Learned or Deleted MAC Addresses
135
Adding Secure Addresses
136
Removing Secure Addresses
136
Adding and Removing Static Address Entries
136
Configuring Static Addresses for Etherchannel Port Groups
137
Configuring TACACS
138
Configuring the TACACS+ Server Host
138
Configuring Login Authentication
139
Login Authentication
139
Specifying TACACS+ Authorization for Privileged EXEC Access and Network Services
140
Starting TACACS+ Accounting
140
Configuring a Switch for Local AAA
141
Controlling Switch Access with RADIUS
142
Understanding RADIUS
142
RADIUS Operation
143
Configuring RADIUS
144
Default RADIUS Configuration
144
Identifying the RADIUS Server Host
145
Configuring RADIUS Login Authentication
147
Defining AAA Server Groups
149
Configuring RADIUS Authorization for Privileged EXEC Access and Network Services
151
Starting RADIUS Accounting
152
Configuring Settings for All RADIUS Servers
153
Configuring the Switch to Use Vendor-Specific RADIUS Attributes
153
Configuring the Switch for Vendor-Proprietary RADIUS Server Communication
154
Displaying the RADIUS Configuration
155
Chapter 7 Configuring 802.1X Port-Based Authentication
158
Understanding 802.1X Port-Based Authentication
158
Device Roles
158
Authentication Initiation and Message Exchange
159
Ports in Authorized and Unauthorized States
160
Supported Topologies
161
Configuring 802.1X Authentication
162
Default 802.1X Configuration
162
802.1X Configuration Guidelines
163
Enabling 802.1X Authentication
164
Configuring the Switch-To-RADIUS-Server Communication
165
Enabling Periodic Re-Authentication
166
Manually Re-Authenticating a Client Connected to a Port
167
Changing the Quiet Period
167
Changing the Switch-To-Client Retransmission Time
168
Setting the Switch-To-Client Frame-Retransmission Number
169
Displaying 802.1X Statistics and Status
170
Enabling Multiple Hosts
169
Resetting the 802.1X Configuration to the Default Values
170
Chapter 8 Configuring Vlans
171
Overview
171
Management Vlans
173
Changing the Management VLAN for a New Switch
173
Changing the Management VLAN through a Telnet Connection
174
Assigning VLAN Port Membership Modes
174
VLAN Membership Combinations
176
Table
176
Assigning Static-Access Ports to a VLAN
177
Using VTP
177
The VTP Domain
177
VTP Modes and Mode Transitions
177
VTP Advertisements
178
VTP Pruning
179
VTP Version 2
179
VTP Configuration Guidelines
180
Domain Names
180
Passwords
180
Upgrading from Previous Software Releases
181
VTP Version
181
Default VTP Configuration
181
Configuring VTP
182
Configuring VTP Server Mode
182
Configuring VTP Client Mode
182
Disabling VTP (VTP Transparent Mode)
183
Enabling VTP Version 2
184
Disabling VTP Version 2
184
Enabling VTP Pruning
185
Monitoring VTP
185
Vlans in the VTP Database
185
Token Ring Vlans
186
VLAN Configuration Guidelines
186
Default VLAN Configuration
186
Configuring Vlans in the VTP Database
187
Adding a VLAN
188
Modifying a VLAN
188
Deleting a VLAN from the Database
188
Assigning Static-Access Ports to a VLAN
189
How VLAN Trunks Work
190
IEEE 802.1Q Configuration Considerations
191
Trunks Interacting with Other Features
191
Configuring a Trunk Port
192
CLI: Disabling a Trunk Port
192
CLI: Defining the Allowed Vlans on a Trunk
193
Changing the Pruning-Eligible List
193
Configuring the Native VLAN for Untagged Traffic
194
Load Sharing Using STP
194
Load Sharing Using STP Port Priorities
195
Configuring STP Port Priorities and Load Sharing
195
Load Sharing Using STP Path Cost
197
How the VMPS Works
198
Dynamic Port VLAN Membership
199
VMPS Database Configuration File
199
VMPS Configuration Guidelines
201
Default VMPS Configuration
201
Configuring Dynamic VLAN Membership
201
Configuring Dynamic Ports on VMPS Clients
202
Reconfirming VLAN Memberships
203
Changing the Reconfirmation Interval
203
Changing the Retry Count
203
Administering and Monitoring the VMPS
204
Troubleshooting Dynamic Port VLAN Membership
204
Dynamic Port VLAN Membership Configuration Example
204
Understanding Basic STP Features
207
MAC Address Allocation
207
Configuring STP
208
Understanding Basic STP Features
208
Supported STP Instances
208
STP Overview
208
Chapter 9 Configuring STP
209
Election of the Root Switch
209
Bridge Protocol Data Units
209
STP Timers
210
Creating the STP Topology
210
STP Interface States
211
Blocking State
212
Listening State
213
Learning State
213
Forwarding State
213
Disabled State
213
MAC Address Allocation
214
STP Address Management
214
STP and IEEE 802.1Q Trunks
214
STP and Redundant Connectivity
214
STP and Redundant Connectivity
215
Understanding BPDU Guard
216
Understanding Port Fast
216
Understanding Uplinkfast
217
Understanding Cross-Stack Uplinkfast
218
How CSUF Works
219
Events that Cause Fast Convergence
220
Connecting the Stack Ports
221
Limitations
221
Gigastack
222
Understanding Backbonefast
223
Understanding Root Guard
225
Configuring Basic STP Features
226
Default STP Configuration
226
Accelerated Aging to Retain Connectivity
215
Understanding Advanced STP Features
215
Disabling STP
227
Configuring the Root Switch
227
Configuring a Secondary Root Switch
229
Configuring STP Port Priority
230
Configuring STP Path Cost
231
Configuring the Switch Priority of a VLAN
232
Configuring the Hello Time
233
Configuring the Forwarding-Delay Time for a VLAN
233
Configuring the Maximum-Aging Time for a VLAN
234
Configuring STP for Use in a Cascaded Cluster
234
Displaying STP Status
235
Configuring Advanced STP Features
236
Configuring Port Fast
236
Configuring BPDU Guard
237
Configuring Uplinkfast for Use with Redundant Links
238
Configuring Cross-Stack Uplinkfast
239
Configuring Backbonefast
240
Configuring Root Guard
240
Chapter 10 Configuring the Switch Ports
241
Changing the Port Speed and Duplex Mode
241
Connecting to Devices that Do Not Autonegotiate
242
Setting Speed and Duplex Parameters
242
Configuring IEEE 802.3X Flow Control
243
Configuring Flooding Controls
244
Enabling Storm Control
244
Disabling Storm Control
245
Configuring Protected Ports
245
Enabling Port Security
246
Defining the Maximum Secure Address Count
247
Enabling Port Security
247
Disabling Port Security
248
Understanding the Etherchannel
248
Understanding Port-Channel Interfaces
249
Understanding the Port Aggregation Protocol
250
Pagp Modes
250
Physical Learners and Aggregate-Port Learners
251
Pagp Interaction with Other Features
252
Understanding Load Balancing and Forwarding Methods
252
Default Etherchannel Configuration
253
Etherchannel Configuration Guidelines
254
Configuring Etherchannels
254
Configuring Etherchannel Load Balancing
256
Configuring the Pagp Learn Method and Priority
257
Displaying Etherchannel and Pagp Status
257
Configuring Unidirectional Link Detection
258
Understanding SPAN
258
SPAN Concepts and Terminology
259
SPAN Session
259
Traffic Types
259
Source Port
260
Destination Port
260
SPAN Traffic
261
SPAN Interaction with Other Features
261
Configuring SPAN
262
SPAN Configuration Guidelines
262
Creating a SPAN Session and Specifying Ports to Monitor
262
Removing Ports from a SPAN Session
262
Displaying SPAN Status
265
Chapter 11 Configuring IGMP Snooping and MVR
267
Understanding and Configuring IGMP Snooping
267
Enabling or Disabling IGMP Snooping
268
CLI: Enabling or Disabling IGMP Snooping
268
Immediate-Leave Processing
269
CLI: Enabling IGMP Immediate-Leave Processing
269
Setting the Snooping Method
270
Joining a Multicast Group
270
Statically Configuring a Host to Join a Group
271
CLI: Statically Configuring a Interface to Join a Group
272
Leaving a Multicast Group
272
CLI: Configuring a Multicast Router Port
273
Understanding Multicast VLAN Registration
273
Using MVR in a Multicast Television Application
274
Configuration Guidelines and Limitations
276
Default MVR Configuration
276
Configuring MVR Global Parameters
276
Configuring MVR Interfaces
278
Displaying MVR
280
Chapter 12 Configuring Network Security with Acls
283
Understanding Acls
283
Acls
284
Handling Fragmented and Unfragmented Traffic
285
Understanding Access Control Parameters
286
Guidelines for Configuring Acls on the Catalyst 2950 Switches
287
Configuring Acls
288
Unsupported Features
288
Creating Standard and Extended IP Acls
289
ACL Numbers
289
Creating a Numbered Standard ACL
290
Creating a Numbered Extended ACL
291
Creating Named Standard and Extended Acls
294
Including Comments about Entries in Acls
296
Applying the ACL to an Interface or Terminal Line
297
Displaying Acls
298
Displaying Access Groups
299
Examples for Compiling Acls
300
Creating Named MAC Extended Acls
302
Creating MAC Access Groups
303
Chapter 13 Configuring Qo
306
Understanding Qos
306
Basic Qos Model
307
Classification
308
Classification Based on Qos Acls
309
Classification Based on Class Maps and Policy Maps
309
Policing and Marking
310
Mapping Tables
311
Queueing and Scheduling
312
How Class of Service Works
312
Port Priority
312
Port Scheduling
312
Cos and WRR
312
Configuring Qos
313
Default Qos Configuration
313
Configuration Guidelines
314
Configuring Classification Using Port Trust States
314
Configuring the Trust State on Ports Within the Qos Domain
314
Configuring the Cos Value for an Interface
314
Configuring a Qos Policy
317
Classifying Traffic by Using Acls
318
Classifying Traffic by Using Class Maps
318
Classifying, Policing, and Marking Traffic by Using Policy Maps
322
Configuring Cos Maps
325
Configuring the Cos-To-DSCP Map
325
Configuring the DSCP-To-Cos Map
326
Configuring Cos and WRR
327
CLI: Configuring Cos Priority Queues
328
Configuring WRR
328
Displaying Qos Information
329
Qos Configuration Examples
329
Qos Configuration for the Common Wiring Closet
330
Qos Configuration for the Intelligent Wiring Closet
331
Configuring Qos
306
Chapter 14 Troubleshooting
333
Avoiding Configuration Conflicts
333
Avoiding Autonegotiation Mismatches
334
Troubleshooting CMS Sessions
335
Copying Configuration Files to Troubleshoot Configuration Problems
336
Recovery Procedures
337
Recovering from Lost Member Connectivity
337
Recovering from a Command Switch Failure
337
Redundant Connectivity
337
Replacing a Failed Command Switch with a Cluster Member
338
Replacing a Failed Command Switch with Another Switch
339
Recovering from a Failed Command Switch Without HSRP
340
Recovering from a Lost or Forgotten Password
341
Recovering from Corrupted Software
342
Debug Commands
343
Enabling Debugging on a Specific Feature
343
Enabling All-System Diagnostics
344
Redirecting Debug and Error Message Output
344
Appendix
345
Error Messages for Security and Qos Configurations
346
Appendix
349
System Messages
349
How to Read System Messages
349
How to Read
350
System Messages
350
Message Severity Levels
350
Error Message Traceback Reports
351
Error Messages and Recovery Procedures
351
Chassis Message
351
CMP Messages
351
Environment Messages
352
Gigastack Messages
352
Link Message
353
RTD Messages
353
Storm Control Messages
354
I N D E X
355
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Cisco 2950 24 - Catalyst Switch Hardware Installation Manual (134 pages)
Catalyst 2950 Series Switch
Brand:
Cisco
| Category:
Switch
| Size: 4.74 MB
Table of Contents
Table of Contents
3
Cisco Limited Lifetime Hardware Warranty Terms
7
Preface
9
Audience
9
Purpose
9
Conventions
9
Related Publications
15
Obtaining Documentation
17
Cisco.com
17
Documentation CD-ROM
17
Ordering Documentation
17
Documentation Feedback
18
Obtaining Technical Assistance
18
Cisco TAC Website
18
Opening a TAC Case
18
TAC Case Priority Definitions
19
Obtaining Additional Publications and Information
19
Chapter 1 Overview
21
Setting up the Switch
21
Features
21
Front-Panel Description
23
10/100 Ports
27
10/100/1000 Ports
28
100BASE-FX and 1000BASE-SX Ports
29
LRE Port
29
GBIC Module Ports
30
SFP Module Slots
31
SFP Modules
31
Leds
33
System LED
36
Rps Led
36
Port Mode and Port Status Leds
36
Rear-Panel Description
41
Power Connectors
42
Internal Power Supply Connector
42
DC Power Connector
43
Cisco RPS Connector
43
Console Port
44
Management Options
44
Installation
47
Preparing for Installation
47
Chapter 2 Installation
48
Installation Guidelines
50
Verifying Package Contents
51
Preparing for Installation
48
Verifying Switch Operation
52
Installing the Switch
53
Installing the Switch in a Rack
53
Attaching the Brackets to the Switch
54
Mounting the Switch in a Rack
62
Attaching the Optional Cable Guide
62
Installing the Switch on a Table, Shelf, or Desk
63
Installing the Switch on a Wall
63
Attaching the Brackets to the Switch
63
Attaching the RPS Connector Cover
64
Mounting the Switch to a Wall
64
Installing the Optional AC Ground Kit for Catalyst 2950 Switches
65
Installing the GBIC Modules
68
Installing and Removing SFP Modules
69
Installing SFP Modules into SFP Module Slots
69
Removing SFP Modules from SFP Module Slots
71
Connecting to 10/100 and 10/100/1000 Ports
73
Connecting to 100BASE-FX and 1000BASE-SX Ports
75
Connecting to an LRE Port
76
Connection Guidelines
76
Limitations and Restrictions with POTS Splitters
77
Required Cables
78
Connecting to a Patch Panel or POTS Splitter
78
Connecting to GBIC Module Ports
81
Connecting to 1000BASE-X GBIC Module Ports
81
Connecting to 1000BASE-T GBIC Module Ports
82
Connecting to Gigastack GBIC Module Ports
83
Connecting to SFP Modules
84
Connecting to Fiber-Optic SFP Modules
84
Connecting to 1000BASE-T SFP Modules
85
Where to Go Next
86
Chapter 3 Troubleshooting
87
Understanding POST Results
87
Diagnosing Problems
87
Diagnosing Problems
88
Appendix
91
Technical Specifications
91
Appendix A Technical Specification
92
Appendix
99
Connectors and Cables
99
Connector Specifications
99
10/100 Ports
99
Appendix B Connector and Cable
100
Connecting to 10BASE-T and 100BASE-TX Devices
100
Connecting to 1000BASE-T Devices
101
LRE Port
101
1000BASE-T GBIC Module Ports
102
1000BASE-X GBIC Module Ports
102
10/100/1000 Ports
100
Cable and Adapter Specifications
104
Two Twisted-Pair Cable Pinouts
104
Four Twisted-Pair Cable Pinouts for 10/100 Ports
105
Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports
106
RJ-21 Cable Pinouts
106
Adapter Pinouts
108
100BASE-FX and 1000BASE-SX Ports
102
Gigastack GBIC Module Ports
102
SFP Module Ports
103
Console Port
103
Identifying a Crossover Cable
103
Appendix
111
Connecting to DC Power
111
Preparing for Installation
112
Grounding the Switch
112
Wiring the DC-Input Power Source
114
Figure
115
Appendix
119
Accessing the CLI
119
Accessing the CLI through Express Setup
119
Accessing the CLI through the Console Port
120
Accessing the CLI
120
Taking out What You Need
121
Connecting to the Console Port
121
Starting the Terminal-Emulation Software
122
Connecting to a Power Source
123
Entering the Initial Configuration Information
123
IP Settings
123
Completing the Setup Program
124
I N D E X
127
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