Hi Dhruv,

Thanks for your suggestions! That really helps to progress the this work. 
Please see in-line with Quan.


[Pce] draft-xiong-pce-nrp-id-01
Dhruv Dhody <[email protected]> Fri, 22 July 2022 18:32 UTCShow header

Hi, Consider adding capability exchange before using this NRP-ID TLV. 
Quan>Good point, NRP capability could be carried in Open message and we will 
update that in next version.

We need to clarify what it means to take NRP into consideration during path 
computation - if the expectations between two implementations are not the same 
we would run into interoperability issues. 
Quan>Yes, we could clarify that our goal is to take NRP into consideration 
during path computation in slicing networks. A NRP is a collection of resources 
(bufferage, queuing,scheduling, etc.) in the underlay network to support the 
IETF Network Slice service. The PCE may compute paths constrained within a NRP 
domain. If that involve interoperability issues, we will update that in next 
version.

There is another document - draft-dong-pce-pcep-vtn-01 (presented at 112) which 
also defines a new TLV for LSPA. Has there been any discussion with the authors 
of that I-D? 
Quan>We have no discussion with the authors of draft-dong-pce-pcep-vtn-01 so 
far. I am not sure the difference between VPN+ and NRP which is up to TEAS 
Working Group. We are glad to discuss with them to progress this work. The 
draft-xiong-pce-nrp-id-01 has replaced the draft-peng-pce-te-constraints-06 and 
the latter draft proposed the slice related constraint early in July 2019 with 
the terminology changing from AII to Slice-ID. Till this June, the TEAS WG 
adopted the [I-D.ietf-teas-ns-ip-mpls] which defined the NRP-ID as the 
identifier of slice resources, we updated the terminology to NRP-ID as the 
constraint for PCE path computation.



Hope this helps! Thanks! Dhruv
[Pce] draft-xiong-pce-nrp-id-01  Dhruv Dhody

_______________________________________________
Pce mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/pce

Reply via email to