RFC 2129 (rfc2129) - Page 3 of 19
Toshiba's Flow Attribute Notification Protocol (FANP) Specification
Alternative Format: Original Text Document
RFC 2129 FANP Specification April 1997
2.2 Future Enhancement
The followings are the future enhancements to be done.
(1) Aggregated flow
In this memo, we define the flow which contain source and
destination IP address. As this may require many VC
resources, we also need a new definition of aggregated flow
which includes several end-to-end flows. The concrete
definition of the aggregated flow is for future study.
(2) Providing multicast service
(3) Supporting IP level QOS signaling like RSVP
(4) Supporting IPv6
3. Terminology and Definition
o VCID (Virtual Connection IDentifier)
Since VPI/VCI values at the origination and the termination points
of a VC (and VP) may not be the same, we need an identifier to
uniquely identify the datalink connection between neighbor nodes.
We define this identifier as a VCID. Currently, only one type of
VCID is defined. This VCID contains the ESI (End System
Identifier) of a source node and the unique identifier within a
source node.
o Flow ID (Flow IDentifier)
IP level packet flow is identified by some parameters in a packet.
Currently, only one type of flow ID is defined. This flow ID
contains a source IP address and a destination IP address. Note
that flow ID used in this specification is not the same as the
flow-id specified in IPv6.
o Cut-through packet forwarding
Packets are forwarded without any IP processing at the router
using the datalink level information (e.g.,VPI/VCI).
Internetworking level information (e.g., destination IP address)
is mapped to the corresponding datalink-level identifier by using
the FANP.
o Hop-by-Hop packet forwarding
Packets are forwarded using IP level information like conventional
routers. In ATM, cells are re-assembled into packets at the
router to analyze the IP header.
Nagami, et. al. Informational