Snom Service Hub

Content

Page tree


  • summarizable (=aggregable) global unicast addresses → enable more efficient routing infrastructure
  • Validity range of an IP address = the range in which it is unique (here global, Internet)
  • Format prefix (FP, 3 bit) managed by IANA
  • TLAs (Toplevel Aggregator, 13 Bit) are assigned by IANA to local Internet registrars, who in turn assign individual TLAs to large Internet providers.
  • 8 bits reserved for future extensions
  • NLA (Next-Level-Aggregator, 24 Bit) identifies a certain customer location, with NLAs an Internet provider can design an addressing hierarchy with several levels within a network.
  • SLA (Site Level Aggregator, 16 Bit) that organizes addressing and routing for downstream Internet providers and identifies sites or subnets within a site.
  • Interface ID (64 bit) identifies the interface within the subnet, is either derived from the 48 bit MAC address of the NIC or can be generated randomly.

Further Information


Related articles