<div dir="auto"><div>There is no loss that persists through to the endpoint in that trace. This is standard control plane rate limiting at intermediate hops. <div dir="auto"><br></div><div dir="auto"><a href="https://archive.nanog.org/meetings/nanog47/presentations/Sunday/RAS_Traceroute_N47_Sun.pdf">https://archive.nanog.org/meetings/nanog47/presentations/Sunday/RAS_Traceroute_N47_Sun.pdf</a></div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 18, 2023, 12:56 Paul Ebersman via Outages <<a href="mailto:outages@outages.org">outages@outages.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I'm seeing heavy packet loss within DEN metro for comcast on ipv6 (but<br>
not ipv4).<br>
<br>
mtr to my mail host follows. packet loss the same hop for any site on<br>
the internet i try to reach via ipv6.<br>
<br>
anyone else seeing issues?<br>
<br>
HOST: localhost.                                       Loss%   Snt<br>
Last   Avg  Best  Wrst StDev<br>
  1.|-- xxxxxxxxxxxxxxxxx                                 0.0%    10 4.1   4.8   2.5  12.9   2.9<br>
  2.|-- xxxxxxxxxxxxxxxxx                                 0.0%    10 14.2  15.4  13.1  20.2   2.2<br>
  3.|-- <a href="http://ae-251-1203-rur01.monument.co.denver.comcast.net" rel="noreferrer noreferrer" target="_blank">ae-251-1203-rur01.monument.co.denver.comcast.net</a>  0.0%    10 15.9  20.7  13.2  36.0   8.2<br>
  4.|-- <a href="http://ae-12-ar01.denver.co.denver.comcast.net" rel="noreferrer noreferrer" target="_blank">ae-12-ar01.denver.co.denver.comcast.net</a>           0.0%    10 23.5  20.6  14.9  32.9   5.4<br>
  5.|-- 2001:558:1c0:1058::1                             40.0%    10 15.4  18.1  14.8  27.3   4.8<br>
  6.|-- <a href="http://be-36031-cs03.1601milehigh.co.ibone.comcast.net" rel="noreferrer noreferrer" target="_blank">be-36031-cs03.1601milehigh.co.ibone.comcast.net</a>  90.0%    10 15.8  15.8  15.8  15.8   0.0<br>
  7.|-- <a href="http://be-1314-cr14.1601milehigh.co.ibone.comcast.net" rel="noreferrer noreferrer" target="_blank">be-1314-cr14.1601milehigh.co.ibone.comcast.net</a>   40.0%    10 17.8  17.2  16.1  17.8   0.6<br>
  8.|-- <a href="http://be-303-cr14.champa.co.ibone.comcast.net" rel="noreferrer noreferrer" target="_blank">be-303-cr14.champa.co.ibone.comcast.net</a>          70.0%    10 18.9  21.1  18.4  26.0   4.2<br>
  9.|-- <a href="http://be-1214-cs02.champa.co.ibone.comcast.net" rel="noreferrer noreferrer" target="_blank">be-1214-cs02.champa.co.ibone.comcast.net</a>         60.0%    10 16.8  17.3  16.7  17.8   0.6<br>
 10.|-- <a href="http://be-1212-cr12.champa.co.ibone.comcast.net" rel="noreferrer noreferrer" target="_blank">be-1212-cr12.champa.co.ibone.comcast.net</a>         30.0%    10 17.2  19.4  15.7  25.5   3.3<br>
 11.|-- <a href="http://be-301-cr11.sunnyvale.ca.ibone.comcast.net" rel="noreferrer noreferrer" target="_blank">be-301-cr11.sunnyvale.ca.ibone.comcast.net</a>        0.0%    10 42.2  42.1  39.6  43.8   1.3<br>
 12.|-- ???                                              100.0    10 0.0   0.0   0.0   0.0   0.0<br>
 13.|-- <a href="http://be-3202-pe02.529bryant.ca.ibone.comcast.net" rel="noreferrer noreferrer" target="_blank">be-3202-pe02.529bryant.ca.ibone.comcast.net</a>       0.0%    10 42.6  43.4  40.7  48.3   2.3<br>
 14.|-- 2001:559::14e                                     0.0%    10 42.7  43.5  41.3  48.8   2.1<br>
 15.|-- <a href="http://mail.dragon.net" rel="noreferrer noreferrer" target="_blank">mail.dragon.net</a>                                   0.0%    10 42.1  42.7  40.7  47.5   1.9<br>
<br>
<br>
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</blockquote></div></div></div>