Re: [pim] pim wg adoption call for draft-chen-pim-srv6-p2mp-path-01

+1 to Jeffrey and Hooman

Cheers,
Jeff
On Jan 12, 2021, 10:46 AM -0800, Jeffrey (Zhaohui) Zhang <zzhang=40juniper.net@dmarc.ietf.org>, wrote:
> I object to the adoption, for the following reasons:
>
> 1. As Hooman pointed out, this should first be discussed in the SPRING WG first, and perhaps homed there.
> 2. Regardless which WG is the right home, this is not a practical solution - you won't be able to encode much of the tree in the data packet even when you use uSID. If you want to remove the per-tree state in the network and still achieve effective replication, you either do BIER or BIER-TE (https://datatracker.ietf.org/doc/draft-ietf-bier-te-arch/). BIER-TE would scale better than this.
> 3. If this did not involve new forwarding scheme (i.e. new hardware) one could argue that multiple solutions could be developed. But given that this does need new hardware and does not do better than alternatives (e.g. BIER-TE), why bother.
>
> BTW, the encoding scheme in this solution is similar to https://tools.ietf.org/html/draft-zhang-qos-ospf-01#section-6.1.3. Of course, that one is for control plane only.
>
> Jeffrey
>
> -----Original Message-----
> From: pim <pim-bounces@ietf.org> On Behalf Of Bidgoli, Hooman (Nokia - CA/Ottawa)
> Sent: Tuesday, January 12, 2021 10:07 AM
> To: Stig Venaas <stig@venaas.com>; pim@ietf.org
> Subject: Re: [pim] pim wg adoption call for draft-chen-pim-srv6-p2mp-path-01
>
> [External Email. Be cautious of content]
>
>
> Hi Stig
>
> And happy new year all!
>
> Is PIM WG really the right place for this draft? After all this draft is trying to introduce a new segment type for the leaf router. I would imagine the work needs to start in the SPRING WG to understand what is a leaf segment type and understand the complications of this segment type in the bigger picture of segment routing.
>
> Thanks
> Hooman
>
>
>
>
> -----Original Message-----
> From: pim <pim-bounces@ietf.org> On Behalf Of Stig Venaas
> Sent: Monday, January 11, 2021 2:54 PM
> To: pim@ietf.org
> Subject: [pim] pim wg adoption call for draft-chen-pim-srv6-p2mp-path-01
>
> Hi all
>
> We discussed the draft draft-chen-pim-srv6-p2mp-path-01 in the last wg meeting. We did do an adoption call in the meeting, but we also would like to get input on the mailing list.
>
> Please respond by January 25th whether you believe this document should be adopted.
> The document can be found at
> https://urldefense.com/v3/__https://tools.ietf.org/html/draft-chen-pim-srv6-p2mp-path-01__;!!NEt6yMaO-gk!VkCfh1h85mTSck3dXz4-Zl2ILoIBABk6FDbg8CYXKvteZ3OpsWdLRkneAwGrxmMp$
>
> Regards,
> Stig
>
> _______________________________________________
> pim mailing list
> pim@ietf.org
> https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/pim__;!!NEt6yMaO-gk!VkCfh1h85mTSck3dXz4-Zl2ILoIBABk6FDbg8CYXKvteZ3OpsWdLRkneAzd9s0on$
>
> _______________________________________________
> pim mailing list
> pim@ietf.org
> https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/pim__;!!NEt6yMaO-gk!VkCfh1h85mTSck3dXz4-Zl2ILoIBABk6FDbg8CYXKvteZ3OpsWdLRkneAzd9s0on$
>
> Juniper Business Use Only
>
> _______________________________________________
> pim mailing list
> pim@ietf.org
> https://www.ietf.org/mailman/listinfo/pim