ip nbar resources flow shows all N/A

[RootBear]

Hello,

when enabling nbar on one port, and issue :

Router#sh ip nbar resources flow

I am getting this:

NBAR flow statistics
        Maximum no of sessions allowed: NA
        Maximum memory usage allowed: NA
        Active sessions:                              0
        Active memory usage:                   NA
        Peak session:                                   0
        Peak memory usage:                      NA

Cisco CISCO2911/K9 (revision 1.0)

ROM Version 15.0(1r)M16 

System image "flash0:c2900-universalk9-mz.SPA.156-3.M4.bin"

Thanks in advance.

[RootBear]

Uh, just discovered that NBAR timer running for 7 weeks may trigger an unexpected reload... 

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCuw40623/?rfs=iqvred

//Still looking into that N/A issue