Really nice but I’m getting problems

Can you please help me solve a problem as sent in e-mail? I want to know exactly the command I use to monitor the traffic on Cisco interfaces, kind if 90Mbps is reached on interface an WARNING is generated etc.

But now the error is GigabitEthernet1/31:UP (no usable data – 201 rows) (1 UP): OK

Below my services.cfg

define service{
host_name br-spo-cbo-acc71
service_description Checagem de Trafego
check_command check_netint!GigabitEthernet1/31
max_check_attempts 3
normal_check_interval 2
retry_check_interval 2
check_period 24×7
notification_interval 28800
notification_period 24×7
notification_options w,c,r
contact_groups administrador
}

Below hosts.cfg

define host {
use switch ; Name of host template to use
host_name br-spo-cbo-acc71
alias hostfiber.com.br-10.99.0.71
hostgroups Infraestrutura
address 10.99.0.71
check_command check-host-alive
max_check_attempts 3
notification_interval 28800
notification_period 24×7
notification_options d,u,r
contact_groups administrador

}

Below my checkcommands:

# check_netint command definition
define command{
command_name check_netint
command_line /usr/lib64/nagios/plugins/check_netint.pl -H $HOSTADDRESS$ -C H0STL0C4T10N -2 -n $ARG1$ -f -Y -k -B -u -d -w 5,5 -c 90,90
}