At 7:00 PM +0000 2/20/03, Arcibal Jr, Mario wrote:
>Try, http://www.sniffer.com/, then select "Free Protocol Poster" from the
>"Quick Links" pull down menu.
>
>Hope that helps.
I would urge anyone getting the average OSI poster to revise it to
reflect developments in protocol architecture since 1984, the year
the original model was standardized. I've long believed that a
substantial part of the questions about protocols on this list,
especially at the CCNA level, would go away if people understood the
strict seven layer model is obsolete.
At a very minimum, draw your seven horizontal layers, and divide them
into three columns: control, user information transfer, and
management. Control protocols are essentially local, such as IGMP or
ARP. They also manage the edge aspects of connection requests and
teardowns.
(Layer*) management protocols run among internal elements of the
network, such as routing protocols, RSVP and HSRP. Note that RSVP
can have both control and management aspects, although at some point
of scaling, it's going to become RSVP-TE and presumably manage
(G)MPLS.
Differentiate between layer management that operates autonomously to
support protocols at a given layer, and system management at layer 7
(e.g., SNMP). Typical layer management for the network layer (again
remembering that IP protocols were NOT developed to be consistent
with the OSI model) include ICMP, IGMP, ARP, etc.
You may then want to look at the more modern ISO OSI concepts of
"Internal Organization of the Network Layer", which really clears up
a lot of concepts that are very confusing in L2/L3*. IEEE also has
architecture that clears up L1/L2 relationships. Both use
sublayering.
For example,
Transmission-technology-independent IP
Mapping to transmission technology ARP
Transmission technology abstraction LLC (and WAN variants)
Transmission technology framing** MAC, FR, ATM AAL
Physical medium independent 802.3, DS1, etc.
waveforms & timing
Physical layer internal interface AUI
Physical medium dependent 10Base5, 10Base2, 10BaseT...
* You can have recursion at any of these levels, such as the LANE stack of
IP/IP ARP/LLC/MAC/LANE ARP,etc./AAL...
** Essentially the variable length frame and medium access control
functions. Think AAL versus ATM.
>
>
>-----Original Message-----
>From: Peter P [mailto:[EMAIL PROTECTED]]
>Sent: Thursday, February 20, 2003 7:53 AM
>To: [EMAIL PROTECTED]
>Subject: Network Protocol Map [7:63424]
>
>
>Does anyone have or know of a site with a network protocol map / chart (that
>I can print out). I am after a kind of wall chart that shows where protocols
>fit within 7 layer OSI model. I do not want to have pay anything,
>preferabbly. (Thanks in advance).
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=63441&t=63424
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