Working on too many things at one time. Actually this is already cover in section 6.3 so I will reference that section.
If a TLV or Sub-TLV is recognized but the length is less than the minimum, then the LSA should be considered malformed and it SHOULD NOT be acknowledged. Additionally, the occurrence SHOULD be logged with enough information to identify the LSA by type, originator, and sequence number and the TLV or Sub-TLV in error. Ideally, the log entry would include the hexadecimal or binary representation of the LSA including the malformed TLS or Sub-TLV. For example: The sub-TLV length must meet minimum length constraints as specified in section 6.3. Thanks Acee On 1/24/18, 3:11 PM, "Acee Lindem (acee)" <a...@cisco.com> wrote: Hi Suresh, On 1/24/18, 10:20 AM, "Suresh Krishnan" <sur...@kaloom.com> wrote: Suresh Krishnan has entered the following ballot position for draft-ietf-ospf-ospfv3-lsa-extend-21: No Objection When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-ospf-ospfv3-lsa-extend/ ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- * Section 3.10 and 3.11 What does the sub-TLV length mean here? Are values other than 4 and 16 permitted? If not, how is the packet treated (sub TLV is ignored?) My thought was to allow for further sub-TLVs defined recursively. However, one would still need a minimum length of 4 or 16 for the forwarding address TLVs. I will add this constraint and will indicate that the TLV is treated as malformed if it is not at least 4 or 16 octets respectively. Similarly, for the Route Tag sub-TLV, I'll indicate that the length must be at least 4 octets. Thanks, Acee _______________________________________________ OSPF mailing list OSPF@ietf.org https://www.ietf.org/mailman/listinfo/ospf