Table Of Contents
Information About Managed LAN Switch
How to Enable Managed LAN Switch
Configuration Examples for Managed LAN Switch
Enabling Managed LAN Switch: Example
Managed LAN Switch
The Managed LAN Switch feature enables the control of the four switch ports in Cisco 831, 836, and 837 routers. Each switch port is associated with a Fast Ethernet interface. The output of the command show controllers fastEthernet <1-4> displays the status of the selected switch port.
The Managed LAN Switch feature allows setting and display of the following parameters for each of the switch ports:
•
Speed
•
It also allows display of the link state of a switch port—that is, whether a device is connected to that port or not.
Feature History for the Managed LAN Switch Feature
12.3(2)XC
This feature modifies the output of the command show controllers fastEthernet <1-4> to show the status of switch port.
Finding Support Information for Platforms and Cisco IOS Software Images
Use Cisco Feature Navigator to find information about platform support and Cisco IOS software image support. Access Cisco Feature Navigator at http://www.cisco.com/go/fn. You must have an account on Cisco.com. If you do not have an account or have forgotten your username or password, click Cancel at the login dialog box and follow the instructions that appear.
Contents
•
•
•
Information About Managed LAN Switch
To configure the Managed LAN Switch feature, you should understand the following concept:
LAN Switching
A LAN is a high-speed, fault-tolerant data network that supplies connectivity to a group of computers, printers, and other devices that are in close proximity to each other, as in an office building, a school or a home. LANs offer computer users many advantages, including shared access to devices and applications, file exchange between connected users, and communication between users via electronic mail and other applications.
For more information about LAN switching, see the following URL:
http://www.cisco.com/en/US/docs/internetworking/technology/handbook/LAN-Switching.html
How to Enable Managed LAN Switch
This section contains the following procedure:
•
Enabling Managed LAN Switch
To enable Managed LAN Switch, perform the following steps:
SUMMARY STEPS
1.
2.
3.
4.
5.
DETAILED STEPS
Verifying Managed LAN Switch
To verify the Managed LAN Switch configuration, enter the show controllers fastEthernet <1-4> command in EXEC mode. The following sample output shows the status of switch port 1.
Router#show controllers fastEthernet 1!Interface FastEthernet1 MARVELL 88E6052Link is DOWNPort is undergoing Negotiation or Link downSpeed :Not set, Duplex :Not set!Switch PHY Registers:~~~~~~~~~~~~~~~~~~~~~00 : 3100 01 : 7849 02 : 0141 03 : 0C1F 04 : 01E105 : 0000 06 : 0004 07 : 2001 08 : 0000 16 : 013017 : 0002 18 : 0000 19 : 0040 20 : 0000 21 : 0000!Switch Port Registers:~~~~~~~~~~~~~~~~~~~~~~Port Status Register [00] : 0800Switch Identifier Register [03] : 0520Port Control Register [04] : 007FRx Counter Register [16] : 000ATx Counter Register [17] : 0008!
Configuration Examples for Managed LAN Switch
This section provides the following configuration example:
•
Enabling Managed LAN Switch: Example
The following example shows the Managed LAN Switch configured with duplex set to auto and full, speed set to auto and 100:
configure terminalEnter configuration commands, one per line. End with CNTL/Z.interface fastEthernet1no ip addressduplex autospeed auto!interface fastEthernet2no ip addressduplex full <---------------- duplex setting of port 2
speed 100 <----------------- speed setting of port 2
!interface fastEthernet3no ip addressshutdown <-------------- shutting port 3
duplex autospeed auto!interface fastEthernet4no ip addressduplex autospeed auto!Additional References
The following sections provide references related to the Managed LAN Switch feature.
Related Documents
Cisco IOS Release 12.3 Configuration Guides and Command References
Cisco IOS Release 12.3 Configuration Guides and Command References
Standards
MIBs
•
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:
RFCs
Technical Assistance
Command Reference
The following commands are introduced or modified in the feature or features documented in this module. For information about these commands, see the Cisco IOS LAN Switching Command Reference at http://www.cisco.com/en/US/docs/ios/lanswitch/command/reference/lsw_book.html. For information about all Cisco IOS commands, go to the Command Lookup Tool at http://tools.cisco.com/Support/CLILookup or to the Cisco IOS Master Commands List.
•
CCDE, CCENT, Cisco Eos, Cisco Lumin, Cisco Nexus, Cisco StadiumVision, Cisco TelePresence, Cisco WebEx, the Cisco logo, DCE, and Welcome to the Human Network are trademarks; Changing the Way We Work, Live, Play, and Learn and Cisco Store are service marks; and Access Registrar, Aironet, AsyncOS, Bringing the Meeting To You, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, CCVP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity, Collaboration Without Limitation, EtherFast, EtherSwitch, Event Center, Fast Step, Follow Me Browsing, FormShare, GigaDrive, HomeLink, Internet Quotient, IOS, iPhone, iQuick Study, IronPort, the IronPort logo, LightStream, Linksys, MediaTone, MeetingPlace, MeetingPlace Chime Sound, MGX, Networkers, Networking Academy, Network Registrar, PCNow, PIX, PowerPanels, ProConnect, ScriptShare, SenderBase, SMARTnet, Spectrum Expert, StackWise, The Fastest Way to Increase Your Internet Quotient, TransPath, WebEx, and the WebEx logo are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries.
All other trademarks mentioned in this document or website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0809R)
Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.
© 2008 Cisco Systems, Inc. All rights reserved.