Cisco 3020 - Cisco Catalyst Blade Switch User manual

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Cisco Catalyst Blade Switch 3020 for HP
Software Configuration Guide
Cisco IOS Release 12.2(25)SEF
June 2006
Text Part Number: OL-8915-01

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Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
Copyright © 2006 Cisco Systems, Inc. All rights reserved.

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CONTENTS
Preface xxvii
Audience xxvii
Purpose xxvii
Conventions xxviii
Related Publications xxviii
Obtaining Documentation xxix
Cisco.com xxix
Product Documentation DVD xxix
Ordering Documentation xxx
Documentation Feedback xxx
Cisco Product Security Overview xxx
Reporting Security Problems in Cisco Products xxxi
Obtaining Technical Assistance xxxi
Cisco Technical Support & Documentation Website xxxii
Submitting a Service Request xxxii
Definitions of Service Request Severity xxxiii
Obtaining Additional Publications and Information xxxiii
CHAPTER 1Overview 1-1
Features 1-1
Ease-of-Deployment and Ease-of-Use Features 1-2
Performance Features 1-2
Management Options 1-3
Manageability Features 1-3
Availability and Redundancy Features 1-4
VLAN Features 1-5
Security Features 1-5
QoS and CoS Features 1-7
Monitoring Features 1-8
Default Settings After Initial Switch Configuration 1-8
Design Concepts for Using the Switch 1-10
Where to Go Next 1-13

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CHAPTER 2Using the Command-Line Interface 2-1
Understanding Command Modes 2-1
Understanding the Help System 2-3
Understanding Abbreviated Commands 2-4
Understanding no and default Forms of Commands 2-4
Understanding CLI Error Messages 2-5
Using Configuration Logging 2-5
Using Command History 2-6
Changing the Command History Buffer Size 2-6
Recalling Commands 2-6
Disabling the Command History Feature 2-7
Using Editing Features 2-7
Enabling and Disabling Editing Features 2-7
Editing Commands through Keystrokes 2-7
Editing Command Lines that Wrap 2-9
Searching and Filtering Output of show and more Commands 2-10
Accessing the CLI 2-10
Accessing the CLI through a Console Connection or through Telnet 2-10
CHAPTER 3Assigning the Switch IP Address and Default Gateway 3-1
Understanding the Boot Process 3-1
Assigning Switch Information 3-2
Default Switch Information 3-3
Understanding DHCP-Based Autoconfiguration 3-3
DHCP Client Request Process 3-4
Configuring DHCP-Based Autoconfiguration 3-5
DHCP Server Configuration Guidelines 3-5
Configuring the TFTP Server 3-6
Configuring the DNS 3-6
Configuring the Relay Device 3-6
Obtaining Configuration Files 3-7
Example Configuration 3-8
Manually Assigning IP Information 3-10
Checking and Saving the Running Configuration 3-10
Modifying the Startup Configuration 3-13
Default Boot Configuration 3-14
Automatically Downloading a Configuration File 3-14
Specifying the Filename to Read and Write the System Configuration 3-14

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Booting Manually 3-15
Booting a Specific Software Image 3-16
Controlling Environment Variables 3-16
Scheduling a Reload of the Software Image 3-18
Configuring a Scheduled Reload 3-18
Displaying Scheduled Reload Information 3-19
CHAPTER 4Configuring Cisco IOS CNS Agents 4-1
Understanding Cisco Configuration Engine Software 4-1
Configuration Service 4-2
Event Service 4-3
NameSpace Mapper 4-3
What You Should Know About the CNS IDs and Device Hostnames 4-3
ConfigID 4-3
DeviceID 4-4
Hostname and DeviceID 4-4
Using Hostname, DeviceID, and ConfigID 4-4
Understanding Cisco IOS Agents 4-5
Initial Configuration 4-5
Incremental (Partial) Configuration 4-6
Synchronized Configuration 4-6
Configuring Cisco IOS Agents 4-6
Enabling Automated CNS Configuration 4-6
Enabling the CNS Event Agent 4-8
Enabling the Cisco IOS CNS Agent 4-9
Enabling an Initial Configuration 4-9
Enabling a Partial Configuration 4-11
Displaying CNS Configuration 4-12
CHAPTER 5Administering the Switch 5-1
Managing the System Time and Date 5-1
Understanding the System Clock 5-1
Understanding Network Time Protocol 5-2
Configuring NTP 5-3
Default NTP Configuration 5-4
Configuring NTP Authentication 5-4
Configuring NTP Associations 5-5
Configuring NTP Broadcast Service 5-6
Configuring NTP Access Restrictions 5-8

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Configuring the Source IP Address for NTP Packets 5-10
Displaying the NTP Configuration 5-11
Configuring Time and Date Manually 5-11
Setting the System Clock 5-11
Displaying the Time and Date Configuration 5-12
Configuring the Time Zone 5-12
Configuring Summer Time (Daylight Saving Time) 5-13
Configuring a System Name and Prompt 5-14
Default System Name and Prompt Configuration 5-15
Configuring a System Name 5-15
Understanding DNS 5-15
Default DNS Configuration 5-16
Setting Up DNS 5-16
Displaying the DNS Configuration 5-17
Creating a Banner 5-17
Default Banner Configuration 5-17
Configuring a Message-of-the-Day Login Banner 5-18
Configuring a Login Banner 5-19
Managing the MAC Address Table 5-19
Building the Address Table 5-20
MAC Addresses and VLANs 5-20
Default MAC Address Table Configuration 5-21
Changing the Address Aging Time 5-21
Removing Dynamic Address Entries 5-22
Configuring MAC Address Notification Traps 5-22
Adding and Removing Static Address Entries 5-24
Configuring Unicast MAC Address Filtering 5-25
Displaying Address Table Entries 5-26
Managing the ARP Table 5-26
CHAPTER 6Configuring Switch-Based Authentication 6-1
Preventing Unauthorized Access to Your Switch 6-1
Protecting Access to Privileged EXEC Commands 6-2
Default Password and Privilege Level Configuration 6-2
Setting or Changing a Static Enable Password 6-3
Protecting Enable and Enable Secret Passwords with Encryption 6-3
Disabling Password Recovery 6-5
Setting a Telnet Password for a Terminal Line 6-6
Configuring Username and Password Pairs 6-6

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Configuring Multiple Privilege Levels 6-7
Setting the Privilege Level for a Command 6-8
Changing the Default Privilege Level for Lines 6-9
Logging into and Exiting a Privilege Level 6-9
Controlling Switch Access with TACACS+ 6-10
Understanding TACACS+ 6-10
TACACS+ Operation 6-12
Configuring TACACS+ 6-12
Default TACACS+ Configuration 6-13
Identifying the TACACS+ Server Host and Setting the Authentication Key 6-13
Configuring TACACS+ Login Authentication 6-14
Configuring TACACS+ Authorization for Privileged EXEC Access and Network Services 6-16
Starting TACACS+ Accounting 6-17
Displaying the TACACS+ Configuration 6-17
Controlling Switch Access with RADIUS 6-17
Understanding RADIUS 6-18
RADIUS Operation 6-19
Configuring RADIUS 6-20
Default RADIUS Configuration 6-20
Identifying the RADIUS Server Host 6-20
Configuring RADIUS Login Authentication 6-23
Defining AAA Server Groups 6-25
Configuring RADIUS Authorization for User Privileged Access and Network Services 6-27
Starting RADIUS Accounting 6-28
Configuring Settings for All RADIUS Servers 6-29
Configuring the Switch to Use Vendor-Specific RADIUS Attributes 6-29
Configuring the Switch for Vendor-Proprietary RADIUS Server Communication 6-31
Displaying the RADIUS Configuration 6-31
Controlling Switch Access with Kerberos 6-32
Understanding Kerberos 6-32
Kerberos Operation 6-34
Authenticating to a Boundary Switch 6-34
Obtaining a TGT from a KDC 6-35
Authenticating to Network Services 6-35
Configuring Kerberos 6-35
Configuring the Switch for Local Authentication and Authorization 6-36

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Configuring the Switch for Secure Shell 6-37
Understanding SSH 6-38
SSH Servers, Integrated Clients, and Supported Versions 6-38
Limitations 6-39
Configuring SSH 6-39
Configuration Guidelines 6-39
Setting Up the Switch to Run SSH 6-39
Configuring the SSH Server 6-41
Displaying the SSH Configuration and Status 6-41
Configuring the Switch for Secure Socket Layer HTTP 6-42
Understanding Secure HTTP Servers and Clients 6-42
Certificate Authority Trustpoints 6-42
CipherSuites 6-44
Configuring Secure HTTP Servers and Clients 6-44
Default SSL Configuration 6-44
SSL Configuration Guidelines 6-45
Configuring a CA Trustpoint 6-45
Configuring the Secure HTTP Server 6-46
Configuring the Secure HTTP Client 6-47
Displaying Secure HTTP Server and Client Status 6-48
Configuring the Switch for Secure Copy Protocol 6-48
Information About Secure Copy 6-49
CHAPTER 7Configuring IEEE 802.1x Port-Based Authentication 7-1
Understanding IEEE 802.1x Port-Based Authentication 7-1
Device Roles 7-2
Authentication Process 7-3
Authentication Initiation and Message Exchange 7-5
Ports in Authorized and Unauthorized States 7-7
IEEE 802.1x Host Mode 7-8
IEEE 802.1x Accounting 7-9
IEEE 802.1x Accounting Attribute-Value Pairs 7-9
Using IEEE 802.1x Authentication with VLAN Assignment 7-10
Using IEEE 802.1x Authentication with Per-User ACLs 7-11
Using IEEE 802.1x Authentication with Guest VLAN 7-12
Using IEEE 802.1x Authentication with Restricted VLAN 7-13
Using IEEE 802.1x Authentication with Inaccessible Authentication Bypass 7-14
Using IEEE 802.1x Authentication with Voice VLAN Ports 7-15
Using IEEE 802.1x Authentication with Port Security 7-15

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Using IEEE 802.1x Authentication with Wake-on-LAN 7-16
Using IEEE 802.1x Authentication with MAC Authentication Bypass 7-17
Configuring IEEE 802.1x Authentication 7-18
Default IEEE 802.1x Authentication Configuration 7-19
IEEE 802.1x Authentication Configuration Guidelines 7-20
IEEE 802.1x Authentication 7-20
VLAN Assignment, Guest VLAN, Restricted VLAN, and Inaccessible Authentication
Bypass 7-21
MAC Authentication Bypass 7-22
Configuring IEEE 802.1x Authentication 7-22
Configuring the Switch-to-RADIUS-Server Communication 7-23
Configuring the Host Mode 7-25
Configuring Periodic Re-Authentication 7-25
Manually Re-Authenticating a Client Connected to a Port 7-26
Changing the Quiet Period 7-26
Changing the Switch-to-Client Retransmission Time 7-27
Setting the Switch-to-Client Frame-Retransmission Number 7-28
Setting the Re-Authentication Number 7-29
Configuring IEEE 802.1x Accounting 7-29
Configuring a Guest VLAN 7-30
Configuring a Restricted VLAN 7-31
Configuring the Inaccessible Authentication Bypass Feature 7-33
Configuring IEEE 802.1x Authentication with WoL 7-35
Configuring MAC Authentication Bypass 7-36
Configuring IEEE 802.1x Authentication Using a RADIUS Server 7-37
Disabling IEEE 802.1x Authentication on the Port 7-38
Resetting the IEEE 802.1x Authentication Configuration to the Default Values 7-38
Displaying IEEE 802.1x Statistics and Status 7-39
CHAPTER 8Configuring Interface Characteristics 8-1
Understanding Interface Types 8-1
Port-Based VLANs 8-2
Switch Ports 8-2
Internal Gigabit Ethernet Ports 8-2
Access Ports 8-3
Trunk Ports 8-3
EtherChannel Port Groups 8-4
Dual-Purpose Uplink Ports 8-4

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Connecting Interfaces 8-5
Management-Only Interface 8-5
Using Interface Configuration Mode 8-6
Procedures for Configuring Interfaces 8-6
Configuring a Range of Interfaces 8-7
Configuring and Using Interface Range Macros 8-8
Configuring Ethernet Interfaces 8-10
Default Ethernet Interface Configuration 8-10
Configuring Interface Speed and Duplex Mode 8-11
Speed and Duplex Configuration Guidelines 8-11
Setting the Type of a Dual-Purpose Uplink Port 8-12
Setting the Interface Speed and Duplex Parameters 8-14
Configuring IEEE 802.3x Flow Control 8-15
Configuring Auto-MDIX on an Interface 8-16
Adding a Description for an Interface 8-17
Configuring the System MTU 8-18
Monitoring and Maintaining the Interfaces 8-19
Monitoring Interface Status 8-19
Clearing and Resetting Interfaces and Counters 8-20
Shutting Down and Restarting the Interface 8-20
CHAPTER 9Configuring Smartports Macros 9-1
Understanding Smartports Macros 9-1
Configuring Smartports Macros 9-2
Default Smartports Macro Configuration 9-2
Smartports Macro Configuration Guidelines 9-3
Creating Smartports Macros 9-4
Applying Smartports Macros 9-5
Applying Cisco-Default Smartports Macros 9-6
Displaying Smartports Macros 9-8
CHAPTER 10 Configuring VLANs 10-1
Understanding VLANs 10-1
Supported VLANs 10-2
VLAN Port Membership Modes 10-3
Configuring Normal-Range VLANs 10-4
Token Ring VLANs 10-5
Normal-Range VLAN Configuration Guidelines 10-5