Hi Faraz, On Jul 20, 2011, at 4:33 PM, Faraz Shamim wrote:
> Revising the last line in my e-mail: > > Since RFC 3137 is now using LSInfinity for router link states, shouldn't WE > change the LSInfinity definition back to what it was in RFC 1247? I don't understand since the LSInfinity is a 24-bit value and the link cost is only 16 bits. > Are there any plans to revise 2328 in near future? No - it is actually one of the few Routing Area documents which has reached full standard. Thanks, Acee > > > > From: Microsoft Office User <[email protected]> > Date: Wed, 20 Jul 2011 15:30:26 -0500 > To: <[email protected]> > Subject: LSInfinity definition > > Hi All, > > The early definition of LSInfinity as defined in RFC 1247 is: > > LSInfinity > The link state metric value indicating that the destination is > unreachable. It is defined to be the binary value of all ones. It > depends on the size of the metric field, which is 16 bits in router > links advertisements, and 24 bits in both summary and AS external > links advertisements. > > > Then we changed it in RFC 1583 as: > > LSInfinity > The metric value indicating that the destination described by a > link state advertisement is unreachable. Used in summary link > advertisements and AS external link advertisements as an > alternative to premature aging (see Section 14.1). It is defined > to be the 24-bit binary value of all ones: 0xffffff. > > > The reason for this change was because of E.3 in RC 1583. Then comes RFC 3137 > which started using LSInfinity in router link states again: > > o costs of all non-stub links (links of the types other than 3) > are set to LSInfinity (16-bit value 0xFFFF, rather than 24-bit > value 0xFFFFFF used in summary and AS-external LSAs). > > > So since RFC 3137 is now using LSInfinity for router link states, shouldn't > change the LSInfinity definition back to what it was in RFC 1247? Are there > any plans to revise 2328 in near future? > > Faraz > > > _______________________________________________ > OSPF mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/ospf
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