Cisco Catalyst 2960-XR User manual

Catalyst 2960-XR Switch Interface and Hardware Component
Configuration Guide, Cisco IOS Release 15.0(2)EX1
First Published: August 08, 2013
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Text Part Number: OL-29420-01

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CONTENTS
Preface Preface ix
Document Conventions ix
Related Documentation xi
Obtaining Documentation and Submitting a Service Request xi
CHAPTER 1 Using the Command-Line Interface 1
Information About Using the Command-Line Interface 1
Command Modes 1
Using the Help System 3
Understanding Abbreviated Commands 4
No and default Forms of Commands 4
CLI Error Messages 4
Configuration Logging 5
How to Use the CLI to Configure Features 5
Configuring the Command History 5
Changing the Command History Buffer Size 6
Recalling Commands 6
Disabling the Command History Feature 7
Enabling and Disabling Editing Features 7
Editing Commands through Keystrokes 8
Editing Command Lines That Wrap 9
Searching and Filtering Output of show and more Commands 10
Accessing the CLI through a Console Connection or through Telnet 11
CHAPTER 2 Configuring Interface Characteristics 13
Finding Feature Information 13
Information About Configuring Interface Characteristics 13
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Interface Types 13
Port-Based VLANs 14
Switch Ports 14
Access Ports 14
Trunk Ports 15
Tunnel Ports 15
Routed Ports 15
Switch Virtual Interfaces 16
SVI Autostate Exclude 16
EtherChannel Port Groups 17
Power over Ethernet Ports 17
Using the Switch USB Ports 18
USB Mini-Type B Console Port 18
Console Port Change Logs 18
USB Type A Ports 19
Interface Connections 19
Interface Configuration Mode 20
Default Ethernet Interface Configuration 21
Interface Speed and Duplex Mode 22
Speed and Duplex Configuration Guidelines 22
IEEE 802.3x Flow Control 23
Layer 3 Interfaces 23
How to Configure Interface Characteristics 24
Configuring Interfaces Procedure 24
Adding a Description for an Interface 25
Configuring a Range of Interfaces 26
Configuring and Using Interface Range Macros 27
Configuring Ethernet Interfaces 29
Setting the Interface Speed and Duplex Parameters 29
Configuring IEEE 802.3x Flow Control 30
Configuring Layer 3 Interfaces 31
Configuring SVI Autostate Exclude 33
Shutting Down and Restarting the Interface 34
Configuring the Console Media Type 35
Configuring the USB Inactivity Timeout 36
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Monitoring Interface Characteristics 37
Monitoring Interface Status 37
Clearing and Resetting Interfaces and Counters 38
Configuration Examples for Interface Characteristics 38
Adding a Description to an Interface: Example 38
Identifying Interfaces on a Stack-Capable Switch: Examples 39
Configuring a Range of Interfaces: Examples 39
Configuring and Using Interface Range Macros: Examples 39
Setting Interface Speed and Duplex Mode: Example 40
Configuring Layer 3 Interfaces: Example 40
Configuring the Console Media Type: Example 40
Configuring the USB Inactivity Timeout: Example 41
Additional References for the Interface Characteristics Feature 41
Feature History and Information for Configuring Interface Characteristics 42
CHAPTER 3 Configuring Auto-MDIX 43
Prerequisites for Auto-MDIX 43
Restrictions for Auto-MDIX 43
Information about Configuring Auto-MDIX 44
Auto-MDIX on an Interface 44
How to Configure Auto-MDIX 44
Configuring Auto-MDIX on an Interface 44
Monitoring Auto-MDIX 45
Example for Configuring Auto-MDIX 46
Feature History and Information for Auto-MDIX 46
CHAPTER 4 Configuring Ethernet Management Port 47
Finding Feature Information 47
Prerequisites for Ethernet Management Ports 47
Information about the Ethernet Management Port 47
Ethernet Management Port Direct Connection to a Switch 48
Ethernet Management Port Connection to Stack Switches using a Hub 48
Ethernet Management Port and Routing 48
Supported Features on the Ethernet Management Port 49
How to Configure the Ethernet Management Port 50
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Contents

Disabling and Enabling the Ethernet Management Port 50
Additional References 51
Feature Information for Ethernet Management Ports 52
CHAPTER 5 Configuring LLDP, LLDP-MED, and Wired Location Service 53
Finding Feature Information 53
LLDP, LLDP-MED, and Wired Location Service Overview 53
LLDP 53
LLDP Supported TLVs 54
LLDP and Cisco Switch Stacks 54
LLDP and Cisco Medianet 54
LLDP-MED 54
LLDP-MED Supported TLVs 55
Wired Location Service 56
Default LLDP Configuration 57
Configuration Guidelines 57
How to Configure LLDP, LLDP-MED, and Wired Location Service 58
Enabling LLDP 58
Configuring LLDP Characteristics 59
Configuring LLDP-MED TLVs 61
Configuring Network-Policy TLV 63
Configuring Location TLV and Wired Location Service 65
Enabling Wired Location Service on the Switch 68
Configuration Examples for LLDP, LLDP-MED, and Wired Location Service 69
Configuring Network-Policy TLV: Examples 69
Monitoring and Maintaining LLDP, LLDP-MED, and Wired Location Service 70
Additional References for LLDP, LLDP-MED, and Wired Location Service 71
Feature Information for LLDP, LLDP-MED, and Wired Location Service 72
CHAPTER 6 Configuring System MTU 73
Finding Feature Information 73
Information about the MTU 73
System MTU Values 73
System MTU Guidelines 74
How to Configure MTU 74
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Configuring the System MTU 74
Configuration Examples for System MTU 76
Additional References for System MTU 76
Feature Information for System MTU 77
CHAPTER 7 Configuring Internal Power Supplies 79
Information About Internal Power Supplies 79
How to Configure Internal Power Supplies 79
Configuring an Internal Power Supply 79
Monitoring Internal Power Supplies 80
Configuration Examples for Internal Power Supplies 80
Feature History and Information for Internal Power Supplies 81
CHAPTER 8 Configuring PoE 83
Finding Feature Information 83
Information about PoE 83
Power over Ethernet Ports 83
Supported Protocols and Standards 84
Powered-Device Detection and Initial Power Allocation 84
Power Management Modes 86
Power Monitoring and Power Policing 87
Maximum Power Allocation (Cutoff Power) on a PoE Port 87
Power Consumption Values 88
How to Configure PoE 88
Configuring a Power Management Mode on a PoE Port 88
Budgeting Power for Devices Connected to a PoE Port 90
Budgeting Power to All PoE ports 90
Budgeting Power to a Specific PoE Port 91
Configuring Power Policing 92
Monitoring Power Status 95
Configuration Examples for Configuring PoE 95
Budgeting Power: Example 95
Feature Information for PoE 95
CHAPTER 9 Configuring EEE 97
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Finding Feature Information 97
Information About EEE 97
EEE Overview 97
Default EEE Configuration 98
Restrictions for EEE 98
How to Configure EEE 98
Enabling or Disabling EEE 98
Monitoring EEE 99
Configuration Examples for Configuring EEE 100
Additional References 100
Feature History and Information for Configuring EEE 101
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Preface
•Document Conventions, page ix
•Related Documentation, page xi
•Obtaining Documentation and Submitting a Service Request, page xi
Document Conventions
This document uses the following conventions:
DescriptionConvention
Both the ^symbol and Ctrl represent the Control (Ctrl) key on a keyboard.
For example, the key combination ^D or Ctrl-D means that you hold
down the Control key while you press the D key. (Keys are indicated in
capital letters but are not case sensitive.)
^ or Ctrl
Commands and keywords and user-entered text appear in bold font.bold font
Document titles, new or emphasized terms, and arguments for which you
supply values are in italic font.
Italic font
Terminal sessions and information the system displays appear in courier
font.
Courier font
Bold Courier font indicates text that the user must enter.Bold Courier font
Elements in square brackets are optional.[x]
An ellipsis (three consecutive nonbolded periods without spaces) after
a syntax element indicates that the element can be repeated.
...
A vertical line, called a pipe, indicates a choice within a set of keywords
or arguments.
|
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DescriptionConvention
Optional alternative keywords are grouped in brackets and separated by
vertical bars.
[x | y]
Required alternative keywords are grouped in braces and separated by
vertical bars.
{x | y}
Nested set of square brackets or braces indicate optional or required
choices within optional or required elements. Braces and a vertical bar
within square brackets indicate a required choice within an optional
element.
[x {y | z}]
A nonquoted set of characters. Do not use quotation marks around the
string or the string will include the quotation marks.
string
Nonprinting characters such as passwords are in angle brackets.< >
Default responses to system prompts are in square brackets.[ ]
An exclamation point (!) or a pound sign (#) at the beginning of a line
of code indicates a comment line.
!, #
Reader Alert Conventions
This document uses the following conventions for reader alerts:
Means reader take note. Notes contain helpful suggestions or references to material not covered in the
manual.
Note
Means the following information will help you solve a problem.
Tip
Means reader be careful. In this situation, you might do something that could result in equipment damage
or loss of data.
Caution
Means the described action saves time. You can save time by performing the action described in the
paragraph.
Timesaver
Means reader be warned. In this situation, you might perform an action that could result in bodily
injury.
Warning
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Preface
Document Conventions