Re: [OPSAWG] I-D Action: draft-ietf-opsawg-l2nm-11.txt

[[e-mail]]

Tom,

Please see inline. 

Cheers,
Med

> -----Message d'origine-----
> De : tom petch <[e-mail]>
> Envoyé : vendredi 19 novembre 2021 13:22
> À : BOUCADAIR Mohamed INNOV/NET <[e-mail]>;
> [e-mail]; [e-mail]
> Objet : Re: I-D Action: draft-ietf-opsawg-l2nm-11.txt
> 
> From: [e-mail] <[e-mail]>
> Sent: 19 November 2021 08:48
> Hi Tom,
> 
> Thank you for checking. Will fix as appropriate.
> 
> <tp>
> 
> 
> Some additional editorial comments on -11
> 
> s.8.2
>  Appendix C lists the initial values included in the
>    "iana-bgp-l2-encaps" YANG module.
> That is not what I see
> 

[Med] Can you please be more explicit? Thanks. 

> s.8.4
>     list y-1731 {
>       description         "List for y-1731.";
> but a list of what?
> 

[Med] Updated to "List of configured Y-1731 instances".

>       leaf cos {
>         type uint32;
> any constraint on this rather large number?
> 

[Med] We don't have any. Please note that the value can be passed via L2SM (RFC8466) which has that range. 

>         container global-parameters-profiles {
>           list global-parameters-profile {
>             uses route-distinguisher;
>             uses vpn-route-targets;
>             uses global-parameters-profile; seems an oxymoron; either the
> list is global-parameters-profile or the grouping is  but as the list is
> also RD and RT that seems a contradiction.  Also while YANG can cope with
> the same identifier in different namespaces, humans might not:-(
> 

[Med] Not sure to get the point. Do you prefer if we use a distinct name for the grouping? 

>             leaf ne-id {
>               description   "Indicates the node's IP address.";
>  seems to contradict
>        p.25   'ne-id':  Includes a unique identifier of the network
> element where
>                  the VPN node is deployed.

[Med] Right. This was fixed as part of Adrian's review. We have now: 

                "An identifier of the network element where
                 the VPN node is deployed. This identifier
                 uniquely identifies the network element within
                 an administrative domain."


> 
>                     case l2tp {
> ..            leaf router-id {
>               description
>                 "A 32-bit number in the dotted-quad format that is
>                  used to uniquely identify a node within an
>                  autonomous system (AS). "; the concept of an AS seems
> alien in a VPN as is to some extent a node rather the reference seems to
> be to PE.  RFC4667 has 'establishes the unique identity of each PE' for
> router-id.
> 

[Med] As I remember, we were referring to RFC3931..which points to rfc2072#section-8.1. We are using AS in a more general context. Do you have any particular change that would like to see? Thanks. 

> 
>                           leaf push {
>                             type empty;
>                             description
>                               "Standard tag Push.
>                                The number of 802.1Q tags to push on the
>                                front of the frame."; I am puzzled how
> empty can be a number

[Med] Good catch. The tag to push is indicate din the cvlan-id. Deleted the sentence. 

> 
>                          leaf cvlan-id {
>                            description
>                              "VLAN identifier.";
>                         leaf cvlan-id {
>                           description
>                             "Push/Translate vlan tags"; seems inconsistent

[Med] We need this id for push or translate operations. Changed to "Push (or Translate)"

> 
>                       leaf flow-control {
>                         type string;
>                          description
>                           "Indicates whtehr flow control is ??
> 
> 

[Med] 

> s.11.1
>               IEEE, "802.1ag - 2007 - IEEE Standard for Local and The IEEE
> website tells me that this is superseded but I cannot see what by

[Med] Same here. 

Thank you

> 
> Tom Petch


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