Understanding the network.pdf - Back to Home

equires that a datagram encapsulation process and an ATM-to-IP
address resolution scheme be developed. RFC 1577 defines the
operational mechanisms required for the implementation of Classical
IP and ARP over ATM. Classical IP over ATM does not support
broadcast or multicast traffic, so its usefulness is really limited to IP
over ATM implementations that operate as point-to-point WAN links.
Figure 6.16 illustrates the local perspective used for the connection of
IP devices over ATM.
Figure 6.16. A Classical IP implementation over an
ATM network.
The operation of Classical IP is straightforward. All the ATM
end-stations must be directly attached to the same network segment
and all must use a common IP network address space. IP datagram
encapsulation is handled by ATM Adaptation Layer 5 (AAL5) by adding
an LLC/SNAP header to the IP datagram. Data exchanges between