A method for automatically reconfiguring a soft permanent virtual circuit (SPVC) source endpoint in a PNNI ATM network, in response to an address change at a destination endpoint, by encoding the address change information in a SIG field in a PNNI topology state element within a PNNI topology state ...http://www.google.com/patents/US7383351?utm_source=gb-gplus-sharePatent US7383351 - Method and apparatus for efficient SPVC destination endpoint address change