Hello Mike,
what device and what IOS image is running on it?
I see the same on one of my C6500
int te5/4
RT-RM-MZZ014-PT-E-2(config-if)#bandwidth ?
<1-10000000> Bandwidth in kilobits
inherit Specify how bandwidth is inherited
sh ver | inc image
System image file is "sup-bootdisk:s72033-adventerprise_wan-vz.122-33.SXI1.bin"
I think a service request should be opened to TAC to have the range reviewed
Hope to help
Giuseppe