# File lib/net/ssh/connection/channel.rb, line 520
520:       def do_open_failed(reason_code, description)
521:         if @on_open_failed
522:           @on_open_failed.call(self, reason_code, description)
523:         else
524:           raise ChannelOpenFailed.new(reason_code, description)
525:         end          
526:       end