nodetool disablegossip 

Disables the gossip protocol.

Disables the gossip protocol.

Synopsis 

$ nodetool <options> disablegossip
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.

Description 

This command effectively marks the node as being down.