You have taken the quote rather out of context.
On page 31, Doyle is discussing the TCP/IP protocol layers, and how they
(roughly) correspond to the OSI stack.
When he refers to BGP and RIP being at the application layer, he is
referring to the TCP/IP application layer, which "corresponds to the OSI
session, presentation, and application layers. Although some routing
protocols such as BGP and RIP reside at this layer, the most common
services of the application layer provide the interfaces by which user
applications access the network". Not that I agree with him - I prefer
Howard and Priscilla's arguments :-)
I couldn't spot anything in Doyle about what layer he thinks OSPF is at,
but I didn't exactly search for long.
Stevens, in TCP/IP Illustrated, seems to strongly imply that routing (and
routing protocols) are at the network layer of the TCP/IP suite.
JMcL
----- Forwarded by Jenny Mcleod/NSO/CSDA on 27/09/2001 03:15 pm -----
"Tribavan
Raina"
cc:
Sent by: Subject: which layer
BGP,RIP ,OSPF work on
[EMAIL PROTECTED]
[7:21226]
27/09/2001 08:02
am
Please respond
to
"Tribavan
Raina"
Hi all..
The answers which we got for this question were wrong.I consulted the CISCO
PRESS BOOK JEFF DOYLE ROUTING TCP/IP
1)RIP,BGP ARE AT APPLICATION LAYER ,PAGE 31 CHAPTER GUESS 1OR 2.
2)OSPF AT TRANSPORT.
Any reasonings..
regds
Tribavan Raina
Network Consultant
TechTonics Group Limited
Level 31 Grand Plimmer Tower
2-6 Gilmer Terrace
PO Box 11 199
Wellington
Ph: +64 4 385 2628
Fax: +64 4 385 2400
www.techtonics.co.nz
Message Posted at:
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