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Re: [pim] Hi Hitoshi, we have discussed your comments about draft-ietf-pim-igmp-mld-proxy-yang on ietf106, and have some questions. Thanks!

Hitoshi Asaeda <asaeda@ieee.org> Wed, 11 December 2019 02:17 UTC

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From: Hitoshi Asaeda <asaeda@ieee.org>
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Date: Tue, 10 Dec 2019 16:17:14 -1000
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To: Hongji Zhao <hongji.zhao=40ericsson.com@dmarc.ietf.org>
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Subject: Re: [pim] Hi Hitoshi, we have discussed your comments about draft-ietf-pim-igmp-mld-proxy-yang on ietf106, and have some questions. Thanks!
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Hi Hongji,

Usually, the upstream interface works as a host interface and the downstream interface(s) work as router interface(s); therefore it'd be reasonable to enable the explicit tracking function on the downstream interface(s).
The draft was expired three years ago, but you may want to refer the following I-D for the explicit tracking function specification.
https://tools.ietf.org/html/draft-ietf-pim-explicit-tracking
(I hope I will resume it after we address the issue of the intended status of this doc.)

BTW, is there a way to configure upstream or downstream for all available interfaces at the proxy?
If yes, is it allowed or disallowed to configure multiple upstream interfaces per IGMP/MLD proxy?
As we shortly discussed in the last PIM meeting, we proposed the extension of configuring multiple upstream interfaces for IGMP/MLD proxy.
Both drafts are still in progress, but if useful, you may want to consider them.
https://tools.ietf.org/html/draft-ietf-pim-multiple-upstreams-reqs-08
https://tools.ietf.org/html/draft-asaeda-pim-multiif-igmpmldproxy-03

Regards,

Hitoshi



> On Dec 9, 2019, at 21:29, Hongji Zhao <hongji.zhao=40ericsson.com@dmarc.ietf.org> wrote:
> 
> Hi Hitoshi,
> 
> For IGMP proxy, would you prefer to enable explicit tracking on the upstream interface? or downstream interface?   Thanks a lot!
> 
> In the IGMP proxy yang model, we enable IGMP proxy on the upstream interface. 
> 
> module: ietf-igmp-mld-proxy
>  augment /rt:routing/rt:control-plane-protocols/rt:control-plane-protocol:
>    +--rw igmp-proxy {feature-igmp-proxy}?
>       +--rw interfaces
>          +--rw interface* [interface-name]
>             +--rw interface-name           if:interface-ref
>             +--rw version?                 uint8
>             +--rw enable?                  boolean
>             +--rw sender-source-address?   inet:ipv4-address
>             +--ro group* [group-address]
>                +--ro group-address    inet:ipv4-address
>                +--ro up-time?         uint32
>                +--ro filter-mode?     enumeration
>                +--ro source* [source-address]
>                   +--ro source-address          inet:ipv4-address
>                   +--ro up-time?                uint32
>                   +--ro downstream-interface* [interface-name]
>                      +--ro interface-name    if:interface-ref
> 
> BR/Hongji
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