Auto-Reconfiguration (“Renumbering”)

• new address prefixes can be introduced, and old ones withdrawn

  • we assume some overlap period between old and new, i.e., no “flash cut-over”
  • hosts learn prefix lifetimes and preferability from router advertisements
  • old TCP connections can survive until end of overlap; new TCP connections can survive beyond overlap

• router renumbering protocol, to allow domain-interior routers to learn of prefix introduction / withdrawal

Notes: