Re: [Idr] WG Adoption call for draft-wang-idr-rd-orf-05.txt (2/4/2021 to 2/18/2021)

Aijun Wang <wangaijun@tsinghua.org.cn> Fri, 12 February 2021 15:26 UTC

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From: Aijun Wang <wangaijun@tsinghua.org.cn>
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Cc: "Wanghaibo (Rainsword)" <rainsword.wang@huawei.com>, idr@ietf.org, Susan Hares <shares@ndzh.com>
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To: Robert Raszuk <robert@raszuk.net>
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Subject: Re: [Idr] WG Adoption call for draft-wang-idr-rd-orf-05.txt (2/4/2021 to 2/18/2021)
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Hi, Robert:

Aijun Wang
China Telecom

> On Feb 12, 2021, at 23:10, Robert Raszuk <robert@raszuk.net> wrote:
> 
> 
>> The receiver device, such as the access router, may have weak performance, while the sender device, such as the RR, may have strong performance.
>> 
> 
> Yes., That is precisely why we have  https://tools.ietf.org/html/rfc4684
> 
>> The ORF is a tool and does not exist independently. The deployment problem described here occurs only when the RD-ORF mode is used.
>> 
>> Actually, the ORF can be used together with other ORFs, such as Prefixed ORF.
>> 
>> RD-ORF provides a more efficient filtering method, making solution deployment more flexible.
>> 
>>  
>> 
>> In fact, most vendors' devices support rd-filter, but only support the configuration.
>> 
>>  
>> 
>> In addition, if the RR decides to push the RD-ORF to its route source only when PE1 and PE3 do not want that RD.
>> 
> 
> See this is one more time indication that you have serious gap in understanding L3VPNs. 
> 
> PEs which import routes do not understand sender's ORF. They take routes and based on RT make a local copy to importing VRF. 
> 
> In RFC4364 RTs are used to build arbitrary VPN topologies not RDs. 

[WAJ] Just one correction, whether RR will send the RD-ORF message out to PE1 is not depend on the reaction of PE2 and PE3, it is its own decision.
> 
> Thx
> 
> 
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