A locator by definition must describe a precise location within
a network, such that any router will be able to forward traffic
towards that network using only the information in locator.
Sean,
Towards the network/link or towards the node?
In 8+8 the top 8 bytes are just the locator for the *link* - not the node.
Thus in 8+8 the locator for a node is composed of the locator for the link
plus the identifier of the node.
Thus depending on the detailed definition this may or may not be viewed
as cleanly separating identifier and locator.
Erik