RFC 4291:IP Version 6 Addressing Architecture
RFC-Ref

subnet prefix


Click on the red underlined text to get to the source

... contents of the named field. When it is used with the term "prefix" (e.g., "subnet prefix"), it refers to all of the address from the left up to and including this field. ...
... Currently, IPv6 continues the IPv4 model in that a subnet prefix is associated with one link. Multiple subnet prefixes ...
... subnet prefix is associated with one link. Multiple subnet prefixes may be assigned to the same link. ...
... address (e.g., the node's subnet prefix), the two can be combined as follows: the node ...
... A slightly sophisticated host (but still rather simple) may additionally be aware of subnet prefix(es) for the link(s) it is attached to, where different addresses ...
... bits | +-------------------------------+---------------------------------+ | subnet prefix | interface ID | +-------------------------------+---------------------------------+ ...
... interfaces on a link. They are required to be unique within a subnet prefix. It is recommended that the same interface identifier not be assigned to different nodes ...
... bits | +------------------------------------------------+----------------+ | subnet prefix | 00000000000000 | +------------------------------------------------+----------------+ ...
... +------------------------------------------------+----------------+ The "subnet prefix" in an anycast address is the prefix that ...


... tunnels. Interface identifiers that are unique within a subnet prefix must be chosen. When no built-in identifier ...
... interface connecting the same node to the same subnet prefix may use the same identifier. ...
... interface identifier. The only requirement is that it be unique within a subnet prefix. There are many possible approaches to select a subnet-prefix ...



Google
Web
RFC-Ref