From: Brian Lodwick (xpranax@xxxxxxxxxxx)
Date: Fri Sep 07 2001 - 19:29:56 GMT-3
Does anyone know everything that was removed from the lab with the removal
of ISO CLNS. Most importantly I would like to know if ATM Classical IP and
ISIS for IP have been removed since they both use NSAP addresses. The
reason I ask is because of the following information I've learned about
CLNS:
Cisco Documentation of OSI Protocols states "CLNS provides network layer
services to the transport layer via CLNP" and "CLNP is an OSI network-layer
protocol that carries upper-layer data and error indications over
connectionless links. CLNP provides the interface between the Connectionless
Network Service (CLNS) and upper layers." Caslow's book states that "The
CLNP address format is also known as an NSAP address". Does this then mean
that anything that uses NSAP addresses (like ATM Classical IP and ISIS for
IP) has been removed from the lab? According to Jeff Doyle's Volume 1 book
"Even when IS-IS is used to route only TCP/IP, IS-IS is still an ISO CLNP
protocol. The packets by which IS-IS communicates with its peers are CLNS
PDUs, which means that even in an IP-only environment, an IS-IS router must
have an ISO address. The ISO address is a network address, a NET, described
in ISO 8348." Thanks in advance.
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