* try harder to determine IP version for sFlow samples.
* try harder to determine IP version for sFlow samples.

JackSlateur/AS-Stats,manuelkasper/AS-Stats,manuelkasper/AS-Stats,clobrother/AS-Stats,manuelkasper/AS-Stats,JackSlateur/AS-Stats,clobrother/AS-Stats,JackSlateur/AS-Stats,clobrother/AS-Stats,manuelkasper/AS-Stats,JackSlateur/AS-Stats,clobrother/AS-Stats