Thinking of the subject again, I would have to come back to what I've said before.
TCP is connection oriented because there's the three-way handshake session establishment. It's reliable because of the retransmission and error checking mechanismns. UDP is connectionless, because there's no session establishment and it's unreliable because of a lack of retransmission and error checking mechanismns. Frame relay is connection oriented because of the establishment of a circuit, but unreliable because there are no retransmission and error checking mechanismns. X25 is connection oriented and reliable. Peter -----Original Message----- From: ""B.J. Wilson"" [mailto:[EMAIL PROTECTED]] Sent: Wednesday, October 02, 2002 3:14 PM To: [EMAIL PROTECTED] Subject: RE: Frame Relay: connectionless or connection-orie [7:54707] Well, I tend to look at things from a "global" or "Layer 1 through 7" perspective: does Frame Relay perform the same functions that TCP does? In other words, does it perform a check to make sure every single IP packet (or Frame Relay frame) makes it from the ingress point of the Frame cloud to the egress point? I don't believe it does, and therefore I consider it connectionless. Now, from a *test* perspective (grrrr...), I suppose the "correct" answer is "connection-oriented" due to the reasons that Peter specified. BJ On Wed, 2 Oct 2002 13:03:09 GMT ccnp ccnp2002 wrote: > Pre-established path, that is it. It surprises > me all this confusing > literature I read. > > When I was reading for my CCNA a few months > back, I was going through this > thing time and again from a Cisco-Authorized > Course, namely, Frame Relay is > connection-oriented because of a > pre-established path. > > What do I believe?? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=54718&t=54707 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
