PIM_VERSION
if (PIM_VT_V(pim->pim_vt) < PIM_VERSION) {
PIM_VT_V(pim->pim_vt), PIM_VERSION);
PIM_MAKE_VT(PIM_VERSION, PIM_REGISTER), /* PIM vers and message type */
if (pim->pim_ver != PIM_VERSION) {
pim->pim_ver, PIM_VERSION);