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Re: [Idr] I-D Action: draft-previdi-idr-segment-routing-te-policy-07.txt

Robert Raszuk <robert@raszuk.net> Mon, 09 October 2017 21:07 UTC

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From: Robert Raszuk <robert@raszuk.net>
Date: Mon, 09 Oct 2017 23:07:53 +0200
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To: Eric C Rosen <erosen@juniper.net>
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Subject: Re: [Idr] I-D Action: draft-previdi-idr-segment-routing-te-policy-07.txt
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> I don't think you need to understand the internal structure of the NLRI
to withdraw the UPDATE.

How do you generate MP_UNREACH_NLRI to send withdraw if you did not
completely parsed all NLRIs sitting in MP_REACH_NLRI attribute in the first
place ?

//r

On Mon, Oct 9, 2017 at 10:41 PM, Eric C Rosen <erosen@juniper.net> wrote:

> On 10/9/2017 4:32 PM, Robert Raszuk wrote:
>
>> You can't withdraw something which you did not successfully parsed.
>>
>
> In the case under discussion, the UPDATE is parsed successfully, but the
> internal structure of the NLRI cannot be parsed by the SR-TE application.
> I don't think you need to understand the internal structure of the NLRI to
> withdraw the UPDATE.  You certainly wouldn't reset the session in this case.
>
>
>
>

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