Hi,

We deployed SRv6 as part of our new mobile network in Italy (Iliad Italy). SRv6 
with SRH is carrying commercial traffic of millions of subscribers for several 
months, with line-rate performance and on several platforms and operating 
systems.
We also started to extend our deployment to our national network in France 
(Free & Free Mobile), we already have significant inter-AS SRv6 traffic.

You can also read draft-matsushima-spring-srv6-deployment-status-01 section 2.3.

Best regards,
Sébastien

----- Mail original -----
> De: "Satoru Matsushima" <satoru.matsush...@gmail.com>
> À: "SPRING WG List" <spring@ietf.org>
> Cc: "Zafar Ali, zali" <z...@cisco.com>, "Rob Shakir" 
> <robjs=40google....@dmarc.ietf.org>
> Envoyé: Samedi 31 Août 2019 15:41:43
> Objet: Re: [spring] Beyond SRv6.

> Hi,
> 
> As part of the 5G rollout, Softbank have deployed a nationwide SRv6 network
> carrying commercial traffic with the linerate performance using Merchant
> Silicon.
> 
> https://www.softbank.jp/corp/news/press/sbkk/2019/20190424_03/
> 
> # You can read it in your language through some translation service, e.g, 
> google
> translation.
> 
> draft-matsushima-spring-srv6-deployment-status captured that use case.
> 
> Best regards,
> --satoru
> 
> 
>> 2019/08/31 6:05、Zafar Ali (zali) <z...@cisco.com>のメール:
>> 
>> Dear Chairs and the WG:
>>  
>> The SRv6 network programming solution and its SRH encapsulation is 
>> implemented
>> on 12 hardware platforms including Merchant Silicon.
>> Multiple providers have deployed the SRv6 network programming solution and 
>> its
>> SRH encapsulation with line-rate performance carrying a significant amount of
>> commercial traffic.
>> Several independent interoperability reports documenting successful
>> interoperability of implementation from multiple vendors exist.
>> Implementation, deployment, and interoperability status is publicly 
>> documented
>> inhttps://www.ietf.org/id/draft-matsushima-spring-srv6-deployment-status-01.txt.
>>  
>> Most use-cases are expected to use very few SRv6 segments.
>>  
>> In some specific use-cases, one may desire to optimize the MTU usage further.
>> The SRv6 network programming solution and its SRH encapsulation also support 
>> for
>> this Optimization, through the uSID network instruction.
>>  
>> I do not see the need for any new encapsulation work.
>>  
>> Thanks
>>  
>> Regards … Zafar
>>  
>> From: spring <spring-boun...@ietf.org> on behalf of Rob Shakir
>> <robjs=40google....@dmarc.ietf.org>
>> Date: Sunday, August 4, 2019 at 5:04 PM
>> To: SPRING WG List <spring@ietf.org>
>> Subject: [spring] Beyond SRv6.
>>  
>> Hi SPRING WG,
>>  
>> Over the last 5+ years, the IETF has developed Source Packet Routing in
>> NetworkinG (SPRING) aka Segment Routing for both the MPLS (SR-MPLS) and IPv6
>> (SRv6) data planes. SR-MPLS may also be transported over IP in UDP or GRE.
>>  
>> These encapsulations are past WG last call (in IESG or RFC Editor).
>>  
>> During the SPRING WG meeting at IETF 105, two presentations were related to 
>> the
>> reduction of the size of the SID for IPv6 dataplane:
>>      •
>>      • SRv6+ / CRH --
>>      • https://tools.ietf.org/html/draft-bonica-spring-srv6-plus-04
>>      •
>>      •
>>      • uSID --
>>      •
>>      
>> https://tools.ietf.org/html/draft-filsfils-spring-net-pgm-extension-srv6-usid-01
>>      •
>>  
>> During the IETF week, two additional drafts have been proposed:
>>      •
>>      • https://tools.ietf.org/html/draft-li-spring-compressed-srv6-np-00
>>      •
>>      •
>>      • https://tools.ietf.org/html/draft-mirsky-6man-unified-id-sr-03
>>      •
>>  
>> As we expressed during the meeting, it is important for the WG to understand
>> what the aims of additional encapsulations are. Thus, we think it is 
>> important
>> that the WG should first get to a common understanding on the requirements 
>> for
>> a new IPv6 data plane with a smaller SID - both from the perspective of
>> operators that are looking to deploy these technologies, and from that of the
>> software/hardware implementation.
>>  
>> Therefore, we would like to solicit network operators interested in SR over 
>> the
>> IPv6 data plane to briefly introduce their:
>>      •
>>      • use case (e.g. Fast Reroute, explicit routing/TE)
>>      •
>>      •
>>      • forwarding performance and scaling requirements
>>      •
>>              •
>>              • e.g., (number of nodes, network diameter,
>>              • number of SID required in max and average). For the latter, 
>> if possible using
>>              both SRv6 128-bit SIDs and shorter (e.g. 32-bit) SIDs as the 
>> number would
>>              typically be different (*).
>>              •
>>      •
>>      • if the existing SRv6 approach is not deployable
>>      • in their circumstances, details of the requirement of a different 
>> solution is
>>      required and whether this solution is needed for the short term only or 
>> for the
>>      long term.
>>      •
>>  
>> As well as deployment limitations, we would like the SPRING community to 
>> briefly
>> describe the platform limitations that they are seeing which limit the
>> deployment of SRv6  In particular limitations related to the number of SIDs
>> which can be pushed and forwarded and how much the use of shorter SIDs would
>> improve the deployments .
>>  
>> For both of these sets of feedback if possible, please post this to the 
>> SPRING
>> WG. If the information cannot be shared publicly, please send it directly to
>> the chairs & AD (Martin).
>>  
>> This call for information will run for four weeks, up to 2019/09/03. As a
>> reminder, you can reach the SPRING chairs viaspring-cha...@ietf.org and ADs 
>> via
>> spring-...@ietf.org.
>>  
>> Thank you,
>> -- Rob & Bruno
>>  
>> (*) As expressed on the mailing list, a 128 bit SID can encode two 
>> instructions
>> a node SID and an adjacency SID hence less SID may be required.
>>  
>> _______________________________________________
>> spring mailing list
>> spring@ietf.org
>> https://www.ietf.org/mailman/listinfo/spring
> 
> _______________________________________________
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