Re: [Teas] Suresh Krishnan's Discuss on draft-ietf-teas-gmpls-scsi-03: (with DISCUSS)
Suresh Krishnan <suresh.krishnan@gmail.com> Tue, 22 August 2017 13:08 UTC
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From: Suresh Krishnan <suresh.krishnan@gmail.com>
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Date: Tue, 22 Aug 2017 09:08:02 -0400
Cc: The IESG <iesg@ietf.org>, "draft-ietf-teas-gmpls-scsi@ietf.org" <draft-ietf-teas-gmpls-scsi@ietf.org>, Vishnu Beeram <vbeeram@juniper.net>, "teas-chairs@ietf.org" <teas-chairs@ietf.org>, "teas@ietf.org" <teas@ietf.org>
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To: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>
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Subject: Re: [Teas] Suresh Krishnan's Discuss on draft-ietf-teas-gmpls-scsi-03: (with DISCUSS)
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Thanks Daniele. Regards Suresh > On Aug 22, 2017, at 5:44 AM, Daniele Ceccarelli <daniele.ceccarelli@ericsson.com> wrote: > > Hi Suresh, > > sorry for the delay in answering. > I modified the text as follows: > > The Generalized SCSI is composed of zero or more variable length > type-length-value fields which are each called a SCSI-TLV. > There are no specific size restrictions on these SCSI-TLV. Size > and other formatting restrictions may be imposed by the routing > protocol ISCD field, refer to <xref target="RFC4203"/> and <xref > target="RFC5307"/>. Please also refer to <xref target="RFC3630"/> for > the treatment of malformed Link TLVs. > > How to manage malformed Link TLVs is already described in RFC3630. > > Thanks > Daniele > > > -----Original Message----- > From: Suresh Krishnan [mailto:suresh.krishnan@gmail.com] > Sent: giovedì 3 agosto 2017 16:06 > To: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com> > Cc: The IESG <iesg@ietf.org>; draft-ietf-teas-gmpls-scsi@ietf.org; Vishnu Beeram <vbeeram@juniper.net>; teas-chairs@ietf.org; teas@ietf.org > Subject: Re: Suresh Krishnan's Discuss on draft-ietf-teas-gmpls-scsi-03: (with DISCUSS) > > Hi Daniele, > >> On Aug 3, 2017, at 4:21 AM, Daniele Ceccarelli <daniele.ceccarelli@ericsson.com> wrote: >> >> Hi Suresh, >> >> The GMPLS SCSI is a sub-TLV of the ISCD (interface switching capability descriptor-RFC4203), which in turn is a sub TLV of the Link TLV (RFC3630) ... yes we like nesting in GMPLS 😊 >> >> RFC 3630 (section 2.4.2.) says: " Unrecognized sub-TLVs are ignored." >> >> It seems obvious but it took me a while to go back to the root of the problem, hence few words would help the reader. How about something along the lines of: >> >> "Malformed packets should be treated accordingly with error handling procedures defined in RFC3630.” ? > > … > >> >> Re-reading the draft it seems it's already covered by this statement: >> >> "Size and other formatting restrictions may be imposed by the routing >> protocol ISCD field, refer to <xref target="RFC4203"/> and <xref >> target="RFC5307"/>." >> >> Would you like it to be made more explicit? > > Yes. Please. I personally think ignoring a length error as an unrecognized TLV and moving on is not preferable, but I am happy to step aside if that decision is explicitly made. > > Regards > Suresh > >
- [Teas] Suresh Krishnan's Discuss on draft-ietf-te… Suresh Krishnan
- Re: [Teas] Suresh Krishnan's Discuss on draft-iet… Daniele Ceccarelli
- Re: [Teas] Suresh Krishnan's Discuss on draft-iet… Daniele Ceccarelli
- Re: [Teas] Suresh Krishnan's Discuss on draft-iet… Suresh Krishnan
- Re: [Teas] Suresh Krishnan's Discuss on draft-iet… Daniele Ceccarelli
- Re: [Teas] Suresh Krishnan's Discuss on draft-iet… Suresh Krishnan