Cisco WS-CBS3032-DEL User manual

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Cisco Catalyst Blade Switch 3130 and
3032 for Dell Software Configuration
Guide
Cisco IOS Release 12.2(58)SE
April 2011
Text Part Number: OL-13270-06

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Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
© 2008–20010 Cisco Systems, Inc. All rights reserved.

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CONTENTS
Preface xlix
Audience xlix
Purpose xlix
Conventions xlix
Related Publications l
Obtaining Documentation and Submitting a Service Request li
CHAPTER 1Overview 1-1
Features 1-1
Deployment Features 1-3
Performance Features 1-4
Management Options 1-5
Manageability Features 1-6
Availability and Redundancy Features 1-8
VLAN Features 1-9
Security Features 1-10
QoS and CoS Features 1-13
Layer 3 Features 1-14
Monitoring Features 1-15
Default Settings After Initial Switch Configuration 1-16
Network Configuration Examples 1-20
Design Concepts for Using the Switch 1-20
Small to Medium-Sized Network 1-23
Where to Go Next 1-24
CHAPTER 2Using the Command-Line Interface 2-1
Understanding Command Modes 2-1
Understanding the Help System 2-3
Understanding Abbreviated Commands 2-3
Understanding no and default Forms of Commands 2-4
Understanding CLI Error Messages 2-4
Using Configuration Logging 2-5
Using Command History 2-5

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Changing the Command History Buffer Size 2-5
Recalling Commands 2-6
Disabling the Command History Feature 2-6
Using Editing Features 2-6
Enabling and Disabling Editing Features 2-6
Editing Commands through Keystrokes 2-7
Editing Command Lines that Wrap 2-8
Searching and Filtering Output of show and more Commands 2-9
Accessing the CLI 2-9
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 3-2
Assigning Switch Information 3-3
Default Switch Information 3-3
Understanding DHCP-Based Autoconfiguration 3-4
DHCP Client Request Process 3-4
Understanding DHCP-based Autoconfiguration and Image Update 3-5
DHCP Autoconfiguration 3-5
DHCP Auto-Image Update 3-6
Limitations and Restrictions 3-6
Configuring DHCP-Based Autoconfiguration 3-7
DHCP Server Configuration Guidelines 3-7
Configuring the TFTP Server 3-8
Configuring the DNS 3-8
Configuring the Relay Device 3-8
Obtaining Configuration Files 3-9
Example Configuration 3-10
Configuring the DHCP Auto Configuration and Image Update Features 3-12
Configuring DHCP Autoconfiguration (Only Configuration File) 3-12
Configuring DHCP Auto-Image Update (Configuration File and Image) 3-13
Configuring the Client 3-14
Manually Assigning IP Information 3-15
Checking and Saving the Running Configuration 3-17
Configuring the NVRAM Buffer Size 3-18
Modifying the Startup Configuration 3-19
Default Boot Configuration 3-19
Automatically Downloading a Configuration File 3-19
Specifying the Filename to Read and Write the System Configuration 3-20

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Booting Manually 3-20
Booting a Specific Software Image 3-21
Controlling Environment Variables 3-22
Scheduling a Reload of the Software Image 3-24
Configuring a Scheduled Reload 3-24
Displaying Scheduled Reload Information 3-25
CHAPTER 4Configuring Cisco IOS Configuration Engine 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 4-7
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 4-13
Displaying CNS Configuration 4-14
CHAPTER 5Administering the Switch 5-1
Managing the System Time and Date 5-1
Understanding the System Clock 5-2
Understanding Network Time Protocol 5-2
NTP Version 4 5-4
Configuring Time and Date Manually 5-4
Setting the System Clock 5-5
Displaying the Time and Date Configuration 5-5
Configuring the Time Zone 5-6
Configuring Summer Time (Daylight Saving Time) 5-7

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Configuring a System Name and Prompt 5-8
Default System Name and Prompt Configuration 5-9
Configuring a System Name 5-9
Understanding DNS 5-9
Default DNS Configuration 5-10
Setting Up DNS 5-10
Displaying the DNS Configuration 5-11
Creating a Banner 5-11
Default Banner Configuration 5-11
Configuring a Message-of-the-Day Login Banner 5-12
Configuring a Login Banner 5-13
Managing the MAC Address Table 5-13
Building the Address Table 5-14
MAC Addresses and VLANs 5-14
MAC Addresses and Switch Stacks 5-15
Default MAC Address Table Configuration 5-15
Changing the Address Aging Time 5-16
Removing Dynamic Address Entries 5-16
Configuring MAC Address Change Notification Traps 5-16
Configuring MAC Address Move Notification Traps 5-18
Configuring MAC Threshold Notification Traps 5-19
Adding and Removing Static Address Entries 5-20
Configuring Unicast MAC Address Filtering 5-21
Disabling MAC Address Learning on a VLAN 5-23
Displaying Address Table Entries 5-24
Managing the ARP Table 5-24
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
Configuring Multiple Privilege Levels 6-7
Setting the Privilege Level for a Command 6-8
Changing the Default Privilege Level for Lines 6-9

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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
Establishing a Session with a Router if the AAA Server is Unreachable 6-17
Displaying the TACACS+ Configuration 6-17
Controlling Switch Access with RADIUS 6-18
Understanding RADIUS 6-18
RADIUS Operation 6-19
RADIUS Change of Authorization 6-20
Overview 6-20
Change-of-Authorization Requests 6-21
CoA Request Response Code 6-22
CoA Request Commands 6-23
Stacking Guidelines for Session Termination 6-26
Configuring RADIUS 6-27
Default RADIUS Configuration 6-27
Identifying the RADIUS Server Host 6-27
Configuring RADIUS Login Authentication 6-30
Defining AAA Server Groups 6-32
Configuring RADIUS Authorization for User Privileged Access and Network Services 6-34
Starting RADIUS Accounting 6-35
Establishing a Session with a Router if the AAA Server is Unreachable 6-35
Configuring Settings for All RADIUS Servers 6-36
Configuring the Switch to Use Vendor-Specific RADIUS Attributes 6-36
Configuring the Switch for Vendor-Proprietary RADIUS Server Communication 6-38
Configuring CoA on the Switch 6-39
Monitoring and Troubleshooting CoA Functionality 6-40
Configuring RADIUS Server Load Balancing 6-40
Displaying the RADIUS Configuration 6-40
Controlling Switch Access with Kerberos 6-40
Understanding Kerberos 6-41
Kerberos Operation 6-43

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Authenticating to a Boundary Switch 6-43
Obtaining a TGT from a KDC 6-43
Authenticating to Network Services 6-44
Configuring Kerberos 6-44
Configuring the Switch for Local Authentication and Authorization 6-44
Configuring the Switch for Secure Shell 6-45
Understanding SSH 6-46
SSH Servers, Integrated Clients, and Supported Versions 6-46
Limitations 6-47
Configuring SSH 6-47
Configuration Guidelines 6-47
Setting Up the Switch to Run SSH 6-47
Configuring the SSH Server 6-48
Displaying the SSH Configuration and Status 6-49
Configuring the Switch for Secure Socket Layer HTTP 6-50
Understanding Secure HTTP Servers and Clients 6-50
Certificate Authority Trustpoints 6-50
CipherSuites 6-51
Configuring Secure HTTP Servers and Clients 6-52
Default SSL Configuration 6-52
SSL Configuration Guidelines 6-52
Configuring a CA Trustpoint 6-53
Configuring the Secure HTTP Server 6-54
Configuring the Secure HTTP Client 6-55
Displaying Secure HTTP Server and Client Status 6-56
Configuring the Switch for Secure Copy Protocol 6-57
Information About Secure Copy 6-57
CHAPTER 7Managing Switch Stacks 7-1
Understanding Switch Stacks 7-1
Switch Stack Membership 7-3
Stack Master Election and Re-Election 7-6
Switch Stack Bridge ID and Router MAC Address 7-8
Stack Member Numbers 7-8
Stack Member Priority Values 7-9
Switch Stack Offline Configuration 7-9
Effects of Adding a Provisioned Switch to a Switch Stack 7-10
Effects of Replacing a Provisioned Switch in a Switch Stack 7-11
Effects of Removing a Provisioned Switch from a Switch Stack 7-11

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Hardware Compatibility and SDM Mismatch Mode in Switch Stacks 7-12
Switch Stack Software Compatibility Recommendations 7-12
Stack Protocol Version Compatibility 7-12
Major Version Number Incompatibility Among Switches 7-12
Minor Version Number Incompatibility Among Switches 7-13
Understanding Auto-Upgrade and Auto-Advise 7-13
Auto-Upgrade and Auto-Advise Example Messages 7-14
Incompatible Software and Stack Member Image Upgrades 7-16
Switch Stack Configuration Files 7-16
Additional Considerations for System-Wide Configuration on Switch Stacks 7-17
Switch Stack Management Connectivity 7-18
Connectivity to the Switch Stack Through an IP Address 7-18
Connectivity to the Switch Stack Through an SSH Session 7-18
Connectivity to the Switch Stack Through Console Ports or Ethernet Management Ports 7-18
Connectivity to Specific Stack Members 7-19
Switch Stack Configuration Scenarios 7-19
Configuring the Switch Stack 7-21
Default Switch Stack Configuration 7-21
Enabling Persistent MAC Address 7-21
Assigning Stack Member Information 7-24
Assigning a Stack Member Number 7-24
Setting the Stack Member Priority Value 7-25
Provisioning a New Member for a Switch Stack 7-25
Accessing the CLI of a Specific Stack Member 7-26
Displaying Switch Stack Information 7-27
Troubleshooting Stacks 7-27
Manually Disabling a Stack Port 7-28
Re-Enabling a Stack Port While Another Member Starts 7-28
Understanding the show switch stack-ports summary Output 7-29
Identifying Loopback Problems 7-30
Software Loopback 7-30
Software Loopback Example: No Connected Stack Cable 7-31
Software Loopback Examples: Connected Stack Cables 7-31
Hardware Loopback 7-32
Hardware Loopback Example: LINK OK event 7-32
Hardware Loop Example: LINK NOT OK Event 7-33
Finding a Disconnected Stack Cable 7-33
Fixing a Bad Connection Between Stack Ports 7-34

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CHAPTER 8Configuring SDM Templates 8-1
Understanding the SDM Templates 8-1
Dual IPv4 and IPv6 SDM Templates 8-2
SDM Templates and Switch Stacks 8-3
Configuring the Switch SDM Template 8-4
Default SDM Template 8-4
SDM Template Configuration Guidelines 8-4
Setting the SDM Template 8-5
Displaying the SDM Templates 8-6
CHAPTER 9Configuring IEEE 802.1x Port-Based Authentication 9-1
Understanding IEEE 802.1x Port-Based Authentication 9-2
Device Roles 9-3
Authentication Process 9-4
Authentication Initiation and Message Exchange 9-6
Authentication Manager 9-8
Port-Based Authentication Methods 9-8
Per-User ACLs and Filter-Ids 9-9
Authentication Manager CLI Commands 9-9
Ports in Authorized and Unauthorized States 9-11
802.1x Authentication and Switch Stacks 9-12
802.1x Host Mode 9-12
802.1x Multiple Authentication Mode 9-13
MAC Move 9-14
MAC Replace 9-14
802.1x Accounting 9-15
802.1x Accounting Attribute-Value Pairs 9-15
802.1x Readiness Check 9-16
802.1x Authentication with VLAN Assignment 9-16
802.1x Authentication with Per-User ACLs 9-18
802.1x Authentication with Downloadable ACLs and Redirect URLs 9-19
Cisco Secure ACS and Attribute-Value Pairs for the Redirect URL 9-20
Cisco Secure ACS and Attribute-Value Pairs for Downloadable ACLs 9-21
VLAN ID-based MAC Authentication 9-21
802.1x Authentication with Guest VLAN 9-21
802.1x Authentication with Restricted VLAN 9-22
802.1x Authentication with Inaccessible Authentication Bypass 9-23
Overview 9-23
Support on Multiple-Authentication Ports 9-24