ADVANTAGES OF /48

• Keeps open the possibility of GSE (a.k.a. 8+8) proposal for separating locators and identifiers

  • IRTF Name Space Research Group is looking at this topic

• Maintains 1 to 1 mapping of subnets with Site local prefix (fec0::/48)

• Maintains 1 to 1 mapping of subnets with 6to4 proposal

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