The value of pwTemplateMacPinning specifies
whether or not MAC address pinning is active on the
SDP Bind (mesh or spoke). Setting the value to 'enabled'
disables re-learning of MAC addresses on other SAPs or
SDPs within the same VPLS; the MAC address will hence
remain attached to the SDP Bind for the duration of
its age-timer. This object has effect only for MAC
addresses learned via the normal MAC learning
process, and not for entries learned via DHCP. The
value will be set by default to 'disabled'. However for
a spoke SDP that belongs to a residential SHG, the
value is set to enabled by the system, and cannot be
altered by the operator.