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Use the undo speed command to restore Ethernet interface data rate.
By default, Ethernet interface data rate is automatically negotiated between peer
Ethernet interfaces.
Note that the following:
■ The Combo port does not support the speed command.
■ The speed 1000 command is only applicable to Gigabit Ethernet interface.
Related command: duplex.
Example # Configure data rate for the interface Ethernet 1/0 to 100 Mbps.
<Sysname> system-view
[Sysname] interface ethernet 1/0
[Sysname-Ethernet1/0] speed 100