The value of vRtrLdpGenControlMode specifies the mode used
for distributing labels in response to label binding requests.
When vRtrLdpGenControlMode has a value of 'ordered', label
bindings are not distributed in response to a label request until
a label binding has been received from the next hop for the
destination.
When vRtrLdpGenControlMode has a value of 'independent', label
bindings are distributed immediately in response to a label
request even if a label binding has not yet been received from
the next hop for the destination.