CiscoTik

Networking Administration

CiscoTik

Networking Administration

CiscoTik

آموزش شبکه های مبتنی بر سیسکو و میکروتیک و ...

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۱ مطلب با کلمه‌ی کلیدی «XMODEM» ثبت شده است

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Recovering IOS on a Catalyst Switch

Unfortunately there is no easy way to recover a corrupt or deleted IOS image on a fixed configuration Cisco Catalyst switch. You must use xModem which commonly takes 2+ hours. This lab will discuss and demonstrate the IOS recovery procedure for fixed configuration Catalyst series switches using xModem.

Real World Application

Recovering the Cisco IOS image on a Cisco switch is one of those tasks that is nice to know and not need it then need it and not know it. In the field you may find yourself faced with a Cisco switch that cannot boot up or crashes when booting up due to a possible IOS Image corruption.

Lab Prerequisites

  • This lab will require a REAL switch as this lab cannot be emulated using GNS3.
  • The Cisco IOS on the switch must be corrupt or missing to perform this lab, to emulate this error you can erase the flash memory to practice this lab.
  • An active console session to the device is REQUIRED.
  • You’ll need to use either HyperTerminal or SecureCRT as Putty does not support xModem