Re: [Dime] OVLI: comments to 4.1
"Wiehe, Ulrich (NSN - DE/Munich)" <ulrich.wiehe@nsn.com> Mon, 09 December 2013 13:13 UTC
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From: "Wiehe, Ulrich (NSN - DE/Munich)" <ulrich.wiehe@nsn.com>
To: ext Jouni Korhonen <jouni.nospam@gmail.com>
Thread-Topic: [Dime] OVLI: comments to 4.1
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Date: Mon, 09 Dec 2013 13:13:06 +0000
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Cc: "dime@ietf.org" <dime@ietf.org>
Subject: Re: [Dime] OVLI: comments to 4.1
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There is a fundamental difference: OLRs need to be stored, Feature-Vectors not. When receiving an OLR you may want to know whether its worth the effort to replace an already stored OLR with the received OLR. When receiving a Feature-Vector you just act on it. Ulrich -----Original Message----- From: ext Jouni Korhonen [mailto:jouni.nospam@gmail.com] Sent: Monday, December 09, 2013 1:55 PM To: Wiehe, Ulrich (NSN - DE/Munich) Cc: dime@ietf.org Subject: Re: [Dime] OVLI: comments to 4.1 In the same vein as folks wanted send OLRs with the new or old information, the feature vector should behave in a same way IMHO. That implies there are situations when a reception of the feature vector does not change anything in an endpoint current behavior. - Jouni On Dec 9, 2013, at 2:47 PM, "Wiehe, Ulrich (NSN - DE/Munich)" <ulrich.wiehe@nsn.com> wrote: > Isn't it so that the Feature-Vector (if present) always contains something that an implementation needs to act upon? > > Ulrich > > -----Original Message----- > From: ext Jouni Korhonen [mailto:jouni.nospam@gmail.com] > Sent: Monday, December 09, 2013 1:12 PM > To: Wiehe, Ulrich (NSN - DE/Munich) > Cc: dime@ietf.org > Subject: Re: [Dime] OVLI: comments to 4.1 > > Ulrich, > > On Dec 6, 2013, at 3:03 PM, "Wiehe, Ulrich (NSN - DE/Munich)" <ulrich.wiehe@nsn.com> wrote: > >> Hi Jouni, >> >> thank you for your response. >> >> With regard to 3) >> I still fail to see the usecase for Sequence-Number or TimeStamp within OC-Feature-Vector. Please clarify. > > Since we also allow extending the OC-Feature-Vector beyond recognition, > it has good chances become a rather complex grouped AVP. In that context > the Sequence-Number allows an easy and quick way to check if the feature > vector contains something that an implementation needs to act upon. > >> With regard to 4) >> This was not obvious to me. (The obvious typo is the missing "of" between "one" and "the"). > > Ack. Fixed the missing 'of'. > > - Jouni > >> >> Best regards >> Ulrich >> >> >> -----Original Message----- >> From: ext Jouni Korhonen [mailto:jouni.nospam@gmail.com] >> Sent: Friday, December 06, 2013 11:17 AM >> To: Wiehe, Ulrich (NSN - DE/Munich) >> Cc: dime@ietf.org >> Subject: Re: [Dime] OVLI: comments to 4.1 >> >> >> On Dec 5, 2013, at 3:23 PM, "Wiehe, Ulrich (NSN - DE/Munich)" <ulrich.wiehe@nsn.com> wrote: >> >>> Dear all, >>> >>> here are comments to clause 4.1: >>> >>> 1. The OC-Feature-Vector AVP is no longer a vector; the name of the AVP may be misleading. Proposal is to rename it to "OC-Supported-Features AVP" >> >> OK with me. >> >>> 2. The OC-Feature AVP is a vector of features. Proposal is to rename it to "OC-Feature-Vector AVP" >> >> OK with me. >> >>> 3. The OC-Sequence-Number within OC-Feature-Vector only makes sense if the receiving reporting endpoint can determine the identity of the reacting endpoint (which is not necessarily the origin host (client), >> >> My original proposal was to have seqnr as a timestamp. Some folks argued >> it is no good and suggested seqnr. I still think time makes more sense than >> seqnr. >> >>> it may be an agent and it may not always be the same agent), and if the reporting endpoint is required to store the OC-Feature-Vector / reacting-endpoint-identity pair (which I think both is not required). The reporting endpoint can base its processing logic on the actually received OC-Feature-Vector value, no matter whether it is brand-new or old but stil valid. Proposal is to delete OC-Sequence-Number AVP from OC-Feature-Vector. >> >> Do not agree removing it. >> >>> 4. The text >>> >>> The reporting node that sends the answer also includes the OC- >>> Feature-Vector AVP that describe the capabilities it supports. The >>> set of capabilities advertised by the reporting node depends on local >>> policies. At least one the announced capabilities MUST match >>> mutually. If there is no single matching capability the reacting >>> node MUST act as if it does not implement DOIC and cease inserting >>> any DOIC related AVPs into any Diameter messages with this specific >>> reacting node. >>> >>> is not clear. Would the reporting node include the OC-Feature-Vector AVP in the answer only if there is at least one matching capability? >> >> Because then they have found a way to exchange something that both ends >> know how to handle it. >> >>> Mandating the reacting node to cease for all time inserting OC-Feature-Vector AVPs if it did not get back >> >> There is an obvious typo. It should say: >> >> policies. At least one the announced capabilities MUST match >> mutually. If there is no single matching capability the reporting >> node MUST act as if it does not implement DOIC and cease inserting >> any DOIC related AVPs into any Diameter messages with this specific >> reacting node. >> >> - JOuni >> >> >>> at least one match is also not ok. The request might have been a realm-type request (i.e. without Destination Host) and the reacting node cannot control whether subsequent requests will take the same path to the same reporting node. >>> Even if the request contains a destination host the reacting node cannot know wether the reacting node's capabilities have been modified by the time a subsequent request is sent. >>> Proposal is to keep only the first sentence and delete the rest. >>> >>> Ulrich >>> >>> >>> _______________________________________________ >>> DiME mailing list >>> DiME@ietf.org >>> https://www.ietf.org/mailman/listinfo/dime >> >
- [Dime] OVLI: comments to 4.1 Wiehe, Ulrich (NSN - DE/Munich)
- Re: [Dime] OVLI: comments to 4.1 Jouni Korhonen
- Re: [Dime] OVLI: comments to 4.1 Wiehe, Ulrich (NSN - DE/Munich)
- Re: [Dime] OVLI: comments to 4.1 Ben Campbell
- Re: [Dime] OVLI: comments to 4.1 Wiehe, Ulrich (NSN - DE/Munich)
- [Dime] Conclusion for OC-Feature-Vector - was Re:… Jouni Korhonen
- Re: [Dime] OVLI: comments to 4.1 Jouni Korhonen
- Re: [Dime] OVLI: comments to 4.1 Wiehe, Ulrich (NSN - DE/Munich)
- Re: [Dime] OVLI: comments to 4.1 Jouni Korhonen
- Re: [Dime] OVLI: comments to 4.1 Wiehe, Ulrich (NSN - DE/Munich)
- Re: [Dime] OVLI: comments to 4.1 Jouni Korhonen
- Re: [Dime] OVLI: comments to 4.1 Wiehe, Ulrich (NSN - DE/Munich)
- Re: [Dime] OVLI: comments to 4.1 Steve Donovan
- Re: [Dime] OVLI: comments to 4.1 Ben Campbell
- Re: [Dime] OVLI: comments to 4.1 Jouni Korhonen
- Re: [Dime] OVLI: comments to 4.1 Wiehe, Ulrich (NSN - DE/Munich)
- Re: [Dime] OVLI: comments to 4.1 Wiehe, Ulrich (NSN - DE/Munich)
- Re: [Dime] OVLI: comments to 4.1 Jouni Korhonen
- Re: [Dime] OVLI: comments to 4.1 Wiehe, Ulrich (NSN - DE/Munich)
- Re: [Dime] OVLI: comments to 4.1 Jouni Korhonen
- Re: [Dime] OVLI: comments to 4.1 Wiehe, Ulrich (NSN - DE/Munich)
- Re: [Dime] OVLI: comments to 4.1 Steve Donovan
- Re: [Dime] OVLI: comments to 4.1 Wiehe, Ulrich (NSN - DE/Munich)
- Re: [Dime] OVLI: comments to 4.1 Steve Donovan
- Re: [Dime] OVLI: comments to 4.1 Wiehe, Ulrich (NSN - DE/Munich)
- Re: [Dime] OVLI: comments to 4.1 Steve Donovan
- Re: [Dime] OVLI: comments to 4.1 Wiehe, Ulrich (NSN - DE/Munich)
- Re: [Dime] OVLI: comments to 4.1 Jouni Korhonen
- Re: [Dime] OVLI: comments to 4.1 Wiehe, Ulrich (NSN - DE/Munich)
- Re: [Dime] OVLI: comments to 4.1 Ben Campbell
- Re: [Dime] OVLI: comments to 4.1 Ben Campbell
- Re: [Dime] OVLI: comments to 4.1 Ben Campbell