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
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