Could you give us more informations ? I assume you mean that the router gets the NSAP address from the router. If well, the router gets the address by ILMI at the link up event. Why should it be refreshed ? SSCOP will bring the link down if the remote end dies, in the case that the router and switch were not directly connected. Check: http://www.cisco.com/warp/customer/121/ilmi.html for more details. Hope it helps, Karim.
