Wireshark-bugs: [Wireshark-bugs] [Bug 6302] OSPF LSA length minimum values
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Tue, 20 Mar 2012 10:13:39 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6302

--- Comment #9 from Denis Ovsienko <infrastation@xxxxxxxxx> 2012-03-20 10:13:38 PDT ---
Well, this is the final constraints table for OSPFv2, with comments:

1 Router LSA: >= 36 bytes (>= 1 link descriptor(s) required)
2 Network LSA: >= 28 bytes (>= 1 router-ID(s) required)
3 Summary LSA: >= 28 bytes (>= 1 TOS metric block(s) required)
4 Summary LSA: >= 28 bytes (>= 1 TOS metric block(s) required)
5 AS-External LSA: >= 36 bytes (>= 1 TOS forwarding block(s) required)
7 NSSA LSA: >= 36 bytes (>= 1 TOS forwarding block(s) required)
9 Opaque Link LSA: >= 20 bytes
10 Opaque Area LSA: >= 20 bytes
11 Opaque AS LSA: >= 20 bytes

I believe these values to be the most accurate for the purpose of checking
minimum LSA length constraint. This is what have been implemented in Quagga
ospfd. The OSPFv3 table provided in comment#1 has been respectively implemented
in Quagga ospf6d.

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