Phil, OSPF does not use tcp or udp, which are IP types 6 & 17 respectively or vice-versa, it uses IP type 89, not port.
Jeff >From: "Phil Barker" >Reply-To: "Phil Barker" >To: [EMAIL PROTECTED] >Subject: CertificationZone OSPF I white paper ? [7:23885] >Date: Tue, 23 Oct 2001 09:20:30 -0400 > >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. _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23898&t=23885 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
