Just finished reading this white paper by Howard and have the following points to raise.
Page 8 (A4 wise) last line states : "OSPF does not use a transport protocol like UDP or TCP, but runs directly over the Data Link Layer". This looks like a typo as it runs over IP on port 89. Page 13 presents a table of LSA's type and purpose. Type 2 (network) states that this LSA can be generated by any router. With reference to Doyle, Caslow and RFC 1247 it appears that this LSA can only be generated by the DR for multi-access networks. I appear to have confirmed this also in my lab. Referring to the same table : Type 4 (ABR) states that the contents route to 'Area Border Router' whereas Caslow and RFC 1247 states that they route to AS Boundary routers. Phil. ____________________________________________________________ Nokia Game is on again. Go to http://uk.yahoo.com/nokiagame/ and join the new all media adventure before November 3rd. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23885&t=23885 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

