GS748T - snmp nagios check_bw Current input bandwidth usage is 0

[nsskyetech]

Have a GS748Tv3 FW 3.14

I have enabled SNMP for my Nagios server using the check_bw plugin with parameters 1000!11!5 (port speed!port!secs)

I get back a lot of info but not the bandwidth for Nagios to display. Nagios displays 'Current input bandwidth usage is 0' on the port check line.

Sample of port output check

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check_bw.sh -H 172.16.121.99 -b 10 -v 2c -m input -C public -i 1 -p 4
(standard_in) 2: syntax error
(standard_in) 95: syntax error
(standard_in) 2: syntax error
(standard_in) 93: syntax error
(standard_in) 2: syntax error
(standard_in) 93: syntax error
Current input bandwidth usage is 0
.
many numbers here (about 20)
.
2242921061 Mb/s, 0
.
many numbers here (about 20)
.
2242921061% used

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Does anybody know how to bet the proper bandwidth readings with Nagios from the the Netgear GS748T?

Thank you.