Re: [netmod] AD review of draft-ietf-netmod-entity-06
Benoit Claise <bclaise@cisco.com> Wed, 20 December 2017 14:01 UTC
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To: Martin Bjorklund <mbj@tail-f.com>
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From: Benoit Claise <bclaise@cisco.com>
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Date: Wed, 20 Dec 2017 15:01:14 +0100
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Archived-At: <https://mailarchive.ietf.org/arch/msg/netmod/qHQ1YWBD7HC1sTRAak9BKOLwx_U>
Subject: Re: [netmod] AD review of draft-ietf-netmod-entity-06
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Hi Martin, Thanks. Only kept the relevant excerpts. > >> - Some objects are read-write in RFC6933: >> entPhysicalSerialNum >> entPhysicalAlias >> entPhysicalAssetID >> entPhysicalUris >> >> For example, entPhysicalSerialNum being read-write always bothered me. >> serial-num is now "config false", which is a good news IMO. > Actually, this was not the intention. In draft-ietf-netmod-entity-03 > this is configurable. I missed this in the conversion to NMDA. Ah. So no good news in this case... > >> In the reverse direction, entPhysicalMfgName is read-only in RFC6933, >> while it's "config true" in draft-ietf-netmod-entity > Yes, this was added per request from the WG. See e.g. the thread > "draft-ietf-netmod-entity issue #13". Sure. It was mainly an observation. > > However, I think that what we have now is probably not correct. I > think that all nodes 'serial-num', 'mfg-name', and 'model-name' should > be config true, and the description of list 'component' updated to > reflect that all these tree leafs are handled the same way. > > I would like to know what the WG thinks about this. Talking as a contributor this time. It seems that inventory management is kind of broken when someone can change 'serial-num', 'mfg-name', and 'model-name. Now, an attacker who could modify YANG objects can do way more damage that playing with inventory management. "forwarding" in https://tools.ietf.org/html/draft-ietf-netmod-rfc7277bis-01 comes to mind. >> - >> UUIDorZero >> >> entPhysicalUUID OBJECT-TYPE >> SYNTAX UUIDorZero >> MAX-ACCESS read-only >> STATUS current >> DESCRIPTION >> "This object contains identification information >> about the physical entity. The object contains a >> Universally Unique Identifier, the syntax of this object >> must conform toRFC 4122, Section 4.1 >> <https://tools.ietf.org/html/rfc4122#section-4.1>. >> >> A zero-length octet string is returned if no UUID >> information is known." >> >> >> The YANG module is: >> >> leaf uuid { >> type yang:uuid; >> config false; >> description >> "A Universally Unique Identifier of the component."; >> reference "RFC 6933 <https://tools.ietf.org/html/rfc6933>: >> entPhysicalUUID"; >> } >> >> >> Where: >> >> typedef uuid { >> type string { >> pattern '[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-' >> + '[0-9a-fA-F]{4}-[0-9a-fA-F]{12}'; >> } >> description >> "A Universally Unique IDentifier in the string representation >> defined in RFC 4122. The canonical representation uses >> lowercase characters. >> >> The following is an example of a UUID in string representation: >> f81d4fae-7dec-11d0-a765-00a0c91e6bf6 >> "; >> reference >> "RFC 4122: A Universally Unique IDentifier (UUID) URN >> Namespace"; >> } >> >> Again a difference between the MIB and YANG module to mention in the >> document? > I can add, in the description of leaf "uuid": > > "If no UUID information is known for this component, this leaf is > not instantiated." This works. Thanks, Benoit
- [netmod] AD review of draft-ietf-netmod-entity-06 Benoit Claise
- Re: [netmod] AD review of draft-ietf-netmod-entit… Martin Bjorklund
- Re: [netmod] AD review of draft-ietf-netmod-entit… Benoit Claise
- Re: [netmod] AD review of draft-ietf-netmod-entit… Martin Bjorklund
- Re: [netmod] AD review of draft-ietf-netmod-entit… Benoit Claise
- Re: [netmod] AD review of draft-ietf-netmod-entit… Benoit Claise
- Re: [netmod] AD review of draft-ietf-netmod-entit… Martin Bjorklund
- Re: [netmod] AD review of draft-ietf-netmod-entit… Juergen Schoenwaelder
- Re: [netmod] AD review of draft-ietf-netmod-entit… Martin Bjorklund
- Re: [netmod] AD review of draft-ietf-netmod-entit… Juergen Schoenwaelder
- Re: [netmod] AD review of draft-ietf-netmod-entit… Benoit Claise
- Re: [netmod] AD review of draft-ietf-netmod-entit… Robert Wilton
- Re: [netmod] AD review of draft-ietf-netmod-entit… Bogaert, Bart (Nokia - BE/Antwerp)
- Re: [netmod] AD review of draft-ietf-netmod-entit… Martin Bjorklund
- Re: [netmod] AD review of draft-ietf-netmod-entit… Bogaert, Bart (Nokia - BE/Antwerp)
- Re: [netmod] AD review of draft-ietf-netmod-entit… Martin Bjorklund
- Re: [netmod] AD review of draft-ietf-netmod-entit… Robert Wilton
- Re: [netmod] AD review of draft-ietf-netmod-entit… Martin Bjorklund
- Re: [netmod] AD review of draft-ietf-netmod-entit… Benoit Claise
- Re: [netmod] AD review of draft-ietf-netmod-entit… Dan Romascanu
- Re: [netmod] AD review of draft-ietf-netmod-entit… Robert Wilton
- Re: [netmod] AD review of draft-ietf-netmod-entit… Bogaert, Bart (Nokia - BE/Antwerp)
- Re: [netmod] AD review of draft-ietf-netmod-entit… Einar Nilsen-Nygaard (einarnn)
- Re: [netmod] AD review of draft-ietf-netmod-entit… Joe Clarke
- Re: [netmod] AD review of draft-ietf-netmod-entit… Benoit Claise
- Re: [netmod] AD review of draft-ietf-netmod-entit… Benoit Claise