Re: [Lsr] draft-bashandy-isis-srv6-extensions: Locator Leaking

"Chengli (Cheng Li)" <chengli13@huawei.com> Fri, 18 January 2019 03:53 UTC

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From: "Chengli (Cheng Li)" <chengli13@huawei.com>
To: Peter Psenak <ppsenak@cisco.com>, "draft-bashandy-isis-srv6-extensions@ietf.org" <draft-bashandy-isis-srv6-extensions@ietf.org>
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Thread-Topic: draft-bashandy-isis-srv6-extensions: Locator Leaking
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Date: Fri, 18 Jan 2019 03:53:26 +0000
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Subject: Re: [Lsr] draft-bashandy-isis-srv6-extensions: Locator Leaking
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Hi Peter,

Thanks to your reply. Please see my reply inline [Cheng].

Thanks,
Cheng


-----Original Message-----
From: Peter Psenak [mailto:ppsenak@cisco.com] 
Sent: Thursday, January 17, 2019 3:26 PM
To: Chengli (Cheng Li) <chengli13@huawei.com>;; draft-bashandy-isis-srv6-extensions@ietf.org
Cc: lsr@ietf.org
Subject: Re: draft-bashandy-isis-srv6-extensions: Locator Leaking

Hi Cheng,

On 17/01/2019 03:07 , Chengli (Cheng Li) wrote:
> Hi Authors,
>
>
>
> In chapter 6.1 of draft-bashandy-isis-srv6-extensions-04,  it mentions 
> that Locator TLV can be leaked from level-2 to level-1.(See D bit)
>
>
>
> I am wondering that
>
> 1: Can the Locator be imported from another protocol? Like OSPF?

what do you mean by "imported"?

[Cheng] For example, a locator A::/64 is learned via OSPF, can it be imported to IS-IS? Maybe it  is called "copy"? or "leak"? Not sure about the term.


>
> 2: Will SRv6 End SID sub-TLV be carried when the locator TLV is leaked 
> from level-2 to Level-1?

yes.

[Cheng]If SRv6 End SID sub-TLVs are carried when the locator TLV is leaked  from level-2 to Level-1, does it mean  the locator TLV can not be summary? (Route aggregation)? 

thanks,
Peter

>
>
>
> Thanks,
>
> Cheng
>
>
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>
>