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Dell EMC Networking How to use Putty.exe to save output to a file

Summary: Step by step guide for using PuTTY.exe to gather the output of the “show-tech support” command.

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Instructions

The following article is a step by step guide for using PuTTY.exe to gather the output of the "show tech-support" command sometimes requested by the Networking support team.
Information on PuTTY.exe is widely available.  Make all decisions regarding the download and installation of software consistent with the policies and procedures of your organization.  PuTTY.exe is a popular tool, but this guide should not be interpreted as an explicit or implicit endorsement of that software.
 Assumptions:
 
  • The hardware required to connect to the switch is in place and working.
    *For an IP based connection a network cable from the PC to the switch.  You will need to know the IP address assigned to the switch to use this option.  If you are unsure or otherwise unable to access the IP address of the switch, you will need to use a serial connection.
    *For a serial connection, this is a serial cable, null modem cable, or rollover cable as determined by your specific hardware.  If the PC being used does not have a serial port, a USB to Serial adapter will be needed. 
  • The user is able to login to the Privileged mode (console#) within the switch.
  • The user has downloaded PuTTY.exe
Note: As of the time of this writing, this is the correct download link. PuTTY is freeware and should not require payment or account sign up. PuTTY is a standalone executable that does not require installation.
1.  Open putty by double-clicking on the Putty.exe application file

2.  Click on Session > Logging
HOW11710_en_US__1Putty2
  1. Select Printable Output
  2. Change the name of the output file as necessary and browse to the preferred storage location
  3. Click on Session to enter the connection location
3.  Enter the session-specific information
HOW11710_en_US__2Putty3
  1. Enter IP address
  2. Select Telnet or SSH (Telnet is the default on Dell switches, but the default setting on Putty)
or
Select Serial and verify serial settings:
Select "Serial" in the left pane on the bottom.  The default settings for most switches are:
 
HOW11710_en_US__3Putty3_3
  • Baud: 9600
  • Data bits: 8
  • Stop bits: 1
  • Parity: None
  • Flow control: None
Note: The COM interface is determined by the host OS.  COM1 is used as an example and may be reserved by the OS.  Within the Windows environment, verify the COM port within the Device Manager. 
Many User’s Guides indicate Flow control should be XON/XOFF, but explicitly listing it as None has been shown to remove negotiation compatibility issues with host operating systems.
4.  Click on Open
5.   A command prompt window will open and give the user Command Line Interface (CLI) access to the switch.  If the prompt is console> then enter console>enable, by default, there will not be an "enable password" required. However, in some switches this will need to be set via the web interface or the password recovery process will need to be followed.
6.  Most switches (depending on firmware) will allow the use of console# terminal length 0 to allow the uninterrupted output of the following: console#show tech-support.  If this is command is not supported, it will require the user to advance to the next screen for every 20 lines of output.  There may be several hundred lines of output gathered, so to be assured of non-corrupted logs; utilize the spacebar to advance to the next section of output.
7.  When the prompt returns to console# the log file should be complete and is ready to be sent in as requested or archived as needed. 
 
HOW11710_en_US__4Putty4
 
Note: Remember to return to step #2 and select None. Failure to do so could result in overwriting an existing file the next time Putty.exe is opened.

 

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Affected Product

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Last Published Date

21 Feb 2021

Version

3

Article Type

How To

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