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From: Yingzhen Qu <yingzhen.ietf@gmail.com>
Date: Mon, 1 May 2023 14:48:18 -0700
Message-ID: <CABY-gOO170h-p=wNT8Ra9RkpKsHw5vyRHi7WzRuUdmvHrnVnnQ@mail.gmail.com>
To: "Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net>
Cc: "rtg-dir@ietf.org" <rtg-dir@ietf.org>, 
 "draft-ietf-rtgwg-yang-rib-extend.all@ietf.org"
 <draft-ietf-rtgwg-yang-rib-extend.all@ietf.org>, 
 "last-call@ietf.org" <last-call@ietf.org>, "rtgwg@ietf.org" <rtgwg@ietf.org>
Content-Type: multipart/alternative; boundary="00000000000089d22705faa8c83d"
Archived-At: <https://mailarchive.ietf.org/arch/msg/rtg-dir/zH99tamUTfF7vnnobS0o4AObFlA>
Subject: Re: [RTG-DIR] Rtgdir last call review of
 draft-ietf-rtgwg-yang-rib-extend-16
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Hi Jeffrey,

I've submitted version -17 and updated the description.

For the static routes, I'm leaving as it is unless we receive more feedback
asking for augmentation of repair-path.

Thanks,
Yingzhen

On Mon, May 1, 2023 at 2:05=E2=80=AFPM Jeffrey (Zhaohui) Zhang <zzhang@juni=
per.net>
wrote:

> Hi Yingzhen,
>
>
>
> I can go with that if that=E2=80=99s what the authors/WG=E2=80=99s prefer=
ence, but my
> preference would be to cover it in the base specification itself. What=E2=
=80=99s
> the harm?
>
>
>
> Anyway, this is not a blocking comment.
>
>
>
> Thanks.
>
> Jeffrey
>
>
>
> *From:* Yingzhen Qu <yingzhen.ietf@gmail.com>
> *Sent:* Monday, May 1, 2023 5:01 PM
> *To:* Jeffrey (Zhaohui) Zhang <zzhang@juniper.net>
> *Cc:* rtg-dir@ietf.org; draft-ietf-rtgwg-yang-rib-extend.all@ietf.org;
> last-call@ietf.org; rtgwg@ietf.org
> *Subject:* Re: Rtgdir last call review of
> draft-ietf-rtgwg-yang-rib-extend-16
>
>
>
> *[External Email. Be cautious of content]*
>
>
>
> Hi Jeffrey,
>
>
>
> Considering this is not commonly used, I'd suggest if someone really need=
s
> it they can do an easy augmentation using the grouping defined in this
> draft.
>
>
>
> Thanks,
>
> Yingzhen
>
>
>
> On Mon, May 1, 2023 at 1:52=E2=80=AFPM Jeffrey (Zhaohui) Zhang <zzhang@ju=
niper.net>
> wrote:
>
> Hi Yingzhen,
>
>
>
> *From:* Yingzhen Qu <yingzhen.ietf@gmail.com>
> *Sent:* Monday, May 1, 2023 4:46 PM
> *To:* Jeffrey (Zhaohui) Zhang <zzhang@juniper.net>
> *Cc:* rtg-dir@ietf.org; draft-ietf-rtgwg-yang-rib-extend.all@ietf.org;
> last-call@ietf.org; rtgwg@ietf.org
> *Subject:* Re: Rtgdir last call review of
> draft-ietf-rtgwg-yang-rib-extend-16
>
>
>
> *[External Email. Be cautious of content]*
>
>
>
> Hi Jeffrey,
>
>
>
> Thanks for the review, please see my answers below.
>
>
>
> Thanks,
>
> Yingzhen
>
>
>
> On Mon, May 1, 2023 at 11:43=E2=80=AFAM Zhaohui Zhang via Datatracker <
> noreply@ietf.org> wrote:
>
> Reviewer: Zhaohui Zhang
> Review result: Has Issues
>
> I have the following one nit comment and one question:
>
>   augment "/rt:routing/rt:ribs/rt:rib/"
>     + "rt:routes/rt:route/rt:next-hop/rt:next-hop-options/"
>     + "rt:next-hop-list/rt:next-hop-list/rt:next-hop"
>   {
>     description
>       "Augment the multiple next hops with repair path.";
>     uses repair-path;
>   }
>
> The description is slightly misleading. It is to agument a single next-ho=
p
> in
> the next-hop-list, not "multiple next hops".
>
> [Yingzhen] how about: "Augment the next-hop with a repair path."
>
>
>
> Zzh> Good.
>
>
>
> Shouldn't the repair path be applicable to static routes as well?
>
> [Yingzhen]: Theoretically you can have a repair-path for a static route,
> but have you seen this in deployment?
>
>
>
> Zzh> Whether anyone implemented/deployed it that way, I think it=E2=80=99=
s quite
> reasonable and desired to have it covered in the spec. For example, a
> static route could be using if1 by default but if2 as backup (in case if1
> is down).
>
>
>
> Zzh> Jeffrey
>
>
>
> Juniper Business Use Only
>
>
> Juniper Business Use Only
>

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Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Hi Jeffrey,<div><br></div><div>I&#39;ve submitted version =
-17 and updated the description.=C2=A0</div><div><br></div><div>For the sta=
tic=C2=A0routes, I&#39;m leaving as it is unless we receive more feedback a=
sking for augmentation of repair-path.</div><div><br></div><div>Thanks,</di=
v><div>Yingzhen</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" =
class=3D"gmail_attr">On Mon, May 1, 2023 at 2:05=E2=80=AFPM Jeffrey (Zhaohu=
i) Zhang &lt;<a href=3D"mailto:zzhang@juniper.net">zzhang@juniper.net</a>&g=
t; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0p=
x 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div c=
lass=3D"msg3421284095453201664">





<div lang=3D"EN-US" style=3D"overflow-wrap: break-word;">
<div class=3D"m_3421284095453201664WordSection1">
<p class=3D"MsoNormal">Hi Yingzhen,<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">I can go with that if that=E2=80=99s what the author=
s/WG=E2=80=99s preference, but my preference would be to cover it in the ba=
se specification itself. What=E2=80=99s the harm?<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Anyway, this is not a blocking comment.<u></u><u></u=
></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Thanks.<u></u><u></u></p>
<p class=3D"MsoNormal">Jeffrey<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(225,225,225);padding:3pt 0in 0in">
<p class=3D"MsoNormal"><b>From:</b> Yingzhen Qu &lt;<a href=3D"mailto:yingz=
hen.ietf@gmail.com" target=3D"_blank">yingzhen.ietf@gmail.com</a>&gt; <br>
<b>Sent:</b> Monday, May 1, 2023 5:01 PM<br>
<b>To:</b> Jeffrey (Zhaohui) Zhang &lt;<a href=3D"mailto:zzhang@juniper.net=
" target=3D"_blank">zzhang@juniper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:rtg-dir@ietf.org" target=3D"_blank">rtg-dir@ie=
tf.org</a>; <a href=3D"mailto:draft-ietf-rtgwg-yang-rib-extend.all@ietf.org=
" target=3D"_blank">draft-ietf-rtgwg-yang-rib-extend.all@ietf.org</a>; <a h=
ref=3D"mailto:last-call@ietf.org" target=3D"_blank">last-call@ietf.org</a>;=
 <a href=3D"mailto:rtgwg@ietf.org" target=3D"_blank">rtgwg@ietf.org</a><br>
<b>Subject:</b> Re: Rtgdir last call review of draft-ietf-rtgwg-yang-rib-ex=
tend-16<u></u><u></u></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal" style=3D"line-height:12pt;background:rgb(255,235,156=
)"><b><span style=3D"font-size:10.5pt;font-family:Lato,sans-serif;color:bla=
ck">[External Email. Be cautious of content]<u></u><u></u></span></b></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<div>
<p class=3D"MsoNormal">Hi Jeffrey, <u></u><u></u></p>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Considering=C2=A0this is not commonly used, I&#39;d =
suggest if someone really needs it they can do an easy augmentation using t=
he grouping defined in this draft.=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Thanks,<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Yingzhen<u></u><u></u></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<div>
<p class=3D"MsoNormal">On Mon, May 1, 2023 at 1:52=E2=80=AFPM Jeffrey (Zhao=
hui) Zhang &lt;<a href=3D"mailto:zzhang@juniper.net" target=3D"_blank">zzha=
ng@juniper.net</a>&gt; wrote:<u></u><u></u></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin-left:4=
.8pt;margin-right:0in">
<div>
<div>
<div>
<p class=3D"MsoNormal">Hi Yingzhen,<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<div>
<div style=3D"border-right:none;border-bottom:none;border-left:none;border-=
top:1pt solid rgb(225,225,225);padding:3pt 0in 0in">
<p class=3D"MsoNormal"><b>From:</b> Yingzhen Qu &lt;<a href=3D"mailto:yingz=
hen.ietf@gmail.com" target=3D"_blank">yingzhen.ietf@gmail.com</a>&gt;
<br>
<b>Sent:</b> Monday, May 1, 2023 4:46 PM<br>
<b>To:</b> Jeffrey (Zhaohui) Zhang &lt;<a href=3D"mailto:zzhang@juniper.net=
" target=3D"_blank">zzhang@juniper.net</a>&gt;<br>
<b>Cc:</b> <a href=3D"mailto:rtg-dir@ietf.org" target=3D"_blank">rtg-dir@ie=
tf.org</a>;
<a href=3D"mailto:draft-ietf-rtgwg-yang-rib-extend.all@ietf.org" target=3D"=
_blank">draft-ietf-rtgwg-yang-rib-extend.all@ietf.org</a>;
<a href=3D"mailto:last-call@ietf.org" target=3D"_blank">last-call@ietf.org<=
/a>; <a href=3D"mailto:rtgwg@ietf.org" target=3D"_blank">
rtgwg@ietf.org</a><br>
<b>Subject:</b> Re: Rtgdir last call review of draft-ietf-rtgwg-yang-rib-ex=
tend-16<u></u><u></u></p>
</div>
</div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal" style=3D"line-height:12pt;background:rgb(255,235,156=
)">
<b><span style=3D"font-size:10.5pt;font-family:Lato,sans-serif;color:black"=
>[External Email. Be cautious of content]</span></b><u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<div>
<div>
<div>
<p class=3D"MsoNormal">Hi Jeffrey,
<u></u><u></u></p>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Thanks for the review, please see my answers below.<=
u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Thanks,<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Yingzhen<u></u><u></u></p>
</div>
</div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<div>
<div>
<p class=3D"MsoNormal">On Mon, May 1, 2023 at 11:43=E2=80=AFAM Zhaohui Zhan=
g via Datatracker &lt;<a href=3D"mailto:noreply@ietf.org" target=3D"_blank"=
>noreply@ietf.org</a>&gt; wrote:<u></u><u></u></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin:5pt 0i=
n 5pt 4.8pt">
<p class=3D"MsoNormal" style=3D"margin-bottom:12pt">Reviewer: Zhaohui Zhang=
<br>
Review result: Has Issues<br>
<br>
I have the following one nit comment and one question:<br>
<br>
=C2=A0 augment &quot;/rt:routing/rt:ribs/rt:rib/&quot;<br>
=C2=A0 =C2=A0 + &quot;rt:routes/rt:route/rt:next-hop/rt:next-hop-options/&q=
uot;<br>
=C2=A0 =C2=A0 + &quot;rt:next-hop-list/rt:next-hop-list/rt:next-hop&quot;<b=
r>
=C2=A0 {<br>
=C2=A0 =C2=A0 description<br>
=C2=A0 =C2=A0 =C2=A0 &quot;Augment the multiple next hops with repair path.=
&quot;;<br>
=C2=A0 =C2=A0 uses repair-path;<br>
=C2=A0 }<br>
<br>
The description is slightly misleading. It is to agument a single next-hop =
in<br>
the next-hop-list, not &quot;multiple next hops&quot;.<u></u><u></u></p>
</blockquote>
<div>
<p class=3D"MsoNormal">[Yingzhen] how about: &quot;Augment the next-hop wit=
h a repair path.&quot;<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal">Zzh&gt; Good.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin:5pt 0i=
n 5pt 4.8pt">
<p class=3D"MsoNormal">Shouldn&#39;t the repair path be applicable to stati=
c routes as well?<u></u><u></u></p>
</blockquote>
<div>
<p class=3D"MsoNormal">[Yingzhen]: Theoretically you can have a repair-path=
 for a static route, but have you seen this in deployment?=C2=A0<u></u><u><=
/u></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal">Zzh&gt; Whether anyone implemented/deployed it that =
way, I think it=E2=80=99s quite reasonable and desired to have it covered i=
n the spec. For example, a static route could be using if1 by
 default but if2 as backup (in case if1 is down).<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal">Zzh&gt; Jeffrey<u></u><u></u></p>
</div>
</div>
</div>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p align=3D"center" style=3D"margin:15pt;text-align:center"><span style=3D"=
font-size:7pt;color:black">Juniper Business Use Only<u></u><u></u></span></=
p>
</div>
</div>
</blockquote>
</div>
</div>
</div>
<br>
<p style=3D"font-family:Calibri;font-size:7pt;color:rgb(0,0,0);margin:15pt"=
 align=3D"Center">
Juniper Business Use Only<br>
</p>
</div>

</div></blockquote></div>

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