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Putty Serial Break Sequence Cisco
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![Serial Serial](https://cway.cisco.com/docs/cisco-cli-analyzer/latest/session_login_serial.png)
Send Break Command On Putty
![Putty Putty](https://community.cisco.com/kxiwq67737/attachments/kxiwq67737/5966-discussions-firewalling/111247/1/asa_i2c_error_20141013.jpg)
Troubleshooting Installations, Upgrades, and RebootsThis chapter contains the following sections:.AboutUpgrades andReboots Upgradesand reboots are ongoing network maintenance activities.