William Herrin allegedly wrote on 04 04 2009 11:20 AM: > Briefly: > > Identifier: Any element in the ongoing communication between a user > and a network service he uses which is statically bound to the > function of correlating the communication's data packets with the > communication as a whole.
We use identifiers for - discovery - authentication - session control - referral 3/4 of these are outside of an "ongoing communication". > Address: Any element in a network packet used to calculate the > packet's next hop. An address might or might not be used to construct > an identifier as well. There are many elements in a packet that are used to calculate the next-hop. You really don't want to try to generalize "address" to cover everything including SIP options and (as others have said) MPLS labels. > Locator: An address which is not used to construct an identifier. A > locator is only used to calculate the packet's next hop. (1) There's no way "locator" is going to be a negative definition. (2) See other discussion about why Packet Forwarding is a separation issue from Point Of Attachment Naming (what locators are for). Scott _______________________________________________ rrg mailing list [email protected] http://www.irtf.org/mailman/listinfo/rrg
