Re: [netmod] Adveritzing submodule in <hello>

Hi,

Ram Polisetty Subbaiah <ramas@juniper.net> wrote:
> Thanks Martin,
> 
> One more follow up question:
> 
> If in case both Client and Server are compatible only with Yang 1.0,
> how client/server are supposed to
> handle capabilities advertisement for submodules? By any chance is it
> a limitation in 1.0?

If the module uses include-by-revision (which it should ;-) then both
sides know which revisions of the submodules a given revision of the
module refers to.

In any case, a server that implements YANG 1 can implement YANG
library revision 2016-06-21, which includes info about the submodules.

/martin

> 
> Thanks,
> Ram
> 
> On 20/10/20, 7:34 PM, "Martin Björklund"
> <mbj+ietf@4668.se<mailto:mbj+ietf@4668.se>> wrote:
> 
> [External Email. Be cautious of content]
> 
> 
> Ram Polisetty Subbaiah
> <ramas=40juniper.net@dmarc.ietf.org<mailto:ramas=40juniper.net@dmarc.ietf.org>>
> wrote:
> Hi,
> 
> As per RFC 6020:
> 
> ===
> https://urldefense.com/v3/__https://tools.ietf.org/html/rfc6020*section-5.6.4.1__;Iw!!NEt6yMaO-gk!ViE3k69OOP_eUBbCYJQj30wOp5eFP5wV5Bex288dxmJ2T--9Z1TTLAk4tCUc3Q$<https://urldefense.com/v3/__https:/tools.ietf.org/html/rfc6020*section-5.6.4.1__;Iw!!NEt6yMaO-gk!ViE3k69OOP_eUBbCYJQj30wOp5eFP5wV5Bex288dxmJ2T--9Z1TTLAk4tCUc3Q$>
> Modules
>     Servers indicate the names of supported modules via the <hello>
>     message.  Module namespaces are encoded as the base URI in the
>     capability string, and the module name is encoded as the "module"
>     parameter to the base URI.
> 
>     A server MUST advertise all revisions of all modules it implements.
> 
>     For example, this <hello> message advertises one module "syslog".
> 
>     <hello xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
>       <capability>
>         https://urldefense.com/v3/__http://example.com/syslog?module=syslog&amp;revision=2008-04-01__;!!NEt6yMaO-gk!ViE3k69OOP_eUBbCYJQj30wOp5eFP5wV5Bex288dxmJ2T--9Z1TTLAmPyrVZPQ$<https://urldefense.com/v3/__http:/example.com/syslog?module=syslog&amp;revision=2008-04-01__;!!NEt6yMaO-gk!ViE3k69OOP_eUBbCYJQj30wOp5eFP5wV5Bex288dxmJ2T--9Z1TTLAmPyrVZPQ$>
>       </capability>
>     </hello>
> ===
> 
> My question is, if there are some submodules, should server advertise
> the submodules also in <hello>?
> 
> No.
> 
> Note that module advertisement is done through YANG library in YANG
> 1.1 (RFC 7950).  Submodules are present in the YANG library (RFC
> 8525).
> 
> 
> /martin
> 
> 
> If so, what is the defined format for advertising the same?
> 
> Thanks,
> Ram
> 
> 
> Juniper Business Use Only
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> 
> 
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