Understanding Safe Defaults Mode and SNMP
The safe defaults mode runs an interactive script that allows you to enable or disable SNMP, Telnet, and switch ports.
When you set up your switch for the first time, you must connect to the console port to access the switch. After logging in to the switch, you enter safe defaults mode. Although Telnet and switch ports are enabled by default, the script prompts you to confirm those settings or disable them.
SNMP is disabled by default. If you choose to enable SNMP, the switch follows the interactive script asking you if you want to enable SNMPv1/v2c and/or SNMPv3.
For more detailed information about safe defaults mode, see Using Safe Defaults Mode.