[CCAMP] Comments / questions on draft-ietf-ccamp-mpls-tp-rsvpte-ext-associated-lsp-09
Lou Berger <lberger@labn.net> Fri, 12 September 2014 21:28 UTC
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Date: Fri, 12 Sep 2014 17:28:05 -0400
From: Lou Berger <lberger@labn.net>
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Subject: [CCAMP] Comments / questions on draft-ietf-ccamp-mpls-tp-rsvpte-ext-associated-lsp-09
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Authors, As part of processing the early allocation request, I've the chairs review of the draft. I have some comments and questions. I know I've previously sent comments on the draft, nonetheless I still found some topics to discussion on this version. General comment: - I think the phrase "reverse unidirectional LSPs" should be formally defined in the document. Section 4.2: I propose some more consistent/flexible wording OLD For double sided provisioning, Association Source MUST be set to an address selected by the node that originates the association for the bidirectional LSP (which may be a management entity.) For single sided provisioning, Association Source MUST be set to an address assigned to the node that originates the LSP. NEW Association Source MUST be set to an address selected by the node that originates the association for the bidirectional LSP. For example, this may be a management entity, or in the case of single sided provisioning, an address assigned to the node that originates the LSP. Section 4.4.1 - You need to assign and name C-Type 1 (it's not TBD). Section 4.4.2 - You should explicitly state the format of the subobects, perhaps something along the lines of: "Subobjects have the same format as RSVP Objects, see Section 3.1.2 of [RFC2205]." Section 5.1 (I might have proposed this text, so the error is mine!) OLD types SHOULD NOT be used in ASSOCIATION objects carried in Path messages and SHOULD be ignored if present. NEW types SHOULD NOT be used in ASSOCIATION objects carried in Resv messages and SHOULD be ignored if present. 3rd to last paragraph need to point to section 5.3 OLD Note that teardown procedures of the NEW Generally, the teardown procedures of the and OLD state removal). NEW state removal). See Section 5.3below for additional rules related to LSPs established using single sided provisioning. Section 5.1.1 TEXT says: As specified in [RFC4872], an endpoint node that does not support the new Association Types defined in this document MUST return a PathErr message with the error code "LSP Admission Failure" (value 01 as defined in [RFC2205]) and the sub-code "Bad Association Type" (value 5 as defined in [RFC4872]). Humm, In keeping with being liberal in what you accept, I always interpreted the admittedly vague reference (2nd to last paragraph of section 16 in RFC4872) to define the error for a failure in "appropriate PROTECTION object settings" rather than an unknown association type. I think the above should be dropped. Section 5.2.1 2nd paragraph This is a unique interpretation of 2205's definition for handling unknown c-types in the form of 11bbbbbb. I suggest dropping the paragraph. Section 5.3 The section is missing the handling of teardown when the REVERSE_LSP is present. Perhaps just drop: For the single sided provisioning where the REVERSE_LSP Object is not signaled, Section 6.1 - Drop the suggested values - please copy the table format from the text version of the registry and then show the exact changes you'd like to see made (with the caveat of using TBD where the assignments go) . See RFC5226 for general directions. - The final paragraph should be the 1st, and the other section text adjusted accordingly. Section 6.2 - Drop the first "(TBD)" - Fix the text to distinguish between class number and c-type and which is being requested and defined. - also same final 2 comments from 6.1 I think that's it. I'd like to get these issues resolved before putting in the early allocation request. Lou
- [CCAMP] Comments / questions on draft-ietf-ccamp-… Lou Berger
- Re: [CCAMP] Comments / questions on draft-ietf-cc… Rakesh Gandhi (rgandhi)
- Re: [CCAMP] Comments / questions on draft-ietf-cc… Rakesh Gandhi (rgandhi)
- Re: [CCAMP] Comments / questions on draft-ietf-cc… Lou Berger
- Re: [CCAMP] Comments / questions on draft-ietf-cc… Rakesh Gandhi (rgandhi)