[c-nsp] Monitoring gigabit subinterface

Thu May 26 05:27:57 EDT 2005

I am trying to monitor a Gigabit Subinterface using MRTG but MRTG 
records the Bandwith of the main interface. The router is a Cisco 7206 
VXR. The IOS version Version 12.1(3a)E5
The configuration:

/interface GigabitEthernet4/0.103
 encapsulation dot1Q 103
 ip address 192.168.200.13 255.255.255.252
 no cdp enable/

How can i monitor the subinterface?
Thanks in advance!

Silvia