The value of vRtrInetAllCidrRouteBkupFlags indicates the presence or
absence of LFA next-hops and backup routes.
'none' indicates that no next-hop is present.
'hasLfa' indicates that an LFA next-hop is present in addition to the
regular next-hop.
'hasBackup' indicates that this route has a backup route.
'isBackup' indicates that this route is a backup route to another route
with the same prefix.