nodetool setstreamthroughput 

Sets the throughput capacity in Mb for outbound streaming in the system, or to disable throttling.

Sets the throughput capacity in Mb (megabits) for outbound streaming in the system, or to disable throttling.

Synopsis 

$ nodetool <options> setstreamthroughput -- <value_in_mb>
Options
Short Long Description
-h --host Hostname or IP address
-p --port Port number
-pwf --password-file Password file path
-pw --password Password
-u --username User name
-- Separates an option from an argument that could be mistaken for a option.
Other options are:
  • value_in_mb is the throughput capacity in MB per second for streaming.

Description 

Set value_in_mb to 0 to disable throttling.