Global Unicast Addresses

site

topology

(16 bits)

interface

identifier

(64 bits)

public

topology

(45 bits)

• TLA = Top-Level AggregatorNLA* = Next-Level Aggregator(s)SLA* = Site-Level Aggregator(s)

• all subfields variable-length, non-self-encoding (like CIDR)

• TLAs may be assigned to providers or exchanges

interface ID

SLA*

NLA*

TLA

001

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