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48PoE_config_g0/6#aggregator-group 1 mode lacp active
48PoE_config_g0/6# int g0/8
48PoE_config_g0/8#aggregator-group 1 mode lacp active
3) View information of aggregation group
48PoE #show aggregator-group brief
2.4.4 Root Cause
When the S3400-48T4SP switch is configured with the link aggregation, it is unable to join the aggregation group that has not been created
under the port configuration. Because of the logic problem of statement, the aggregation group must be created first before the port can be
added to the aggregation group.
2.4.5 Solution
S3400-48T4SP switch should be in accordance with the configuration guide when configuring Link Aggregation.
2.4.6 Suggestions and Conclusions
After the configuration fails, you should check the error message and related configuration information, and refer to the configuration guide for
troubleshooting.
2.5 User Management Application Scene
2.5.1 Issue Description
Because the device has not been logged in for a long time, the user name and password are forgotten, and the device cannot be logged in for
management operation.
2.5.2 Topology Information
2.5.3 Handling Process
1. Use the console cable to log in to the device and restart the switch. During the startup, use the Shortcut Ctrl + P to enter the monitor mode.