<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr">On Fri, Dec 28, 2018 at 9:24 PM Yang Yu <<a href="mailto:yang.yu.list@gmail.com">yang.yu.list@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Fri, Dec 28, 2018 at 12:05 AM Stephane Bortzmeyer <<a href="mailto:bortzmeyer@nic.fr" target="_blank">bortzmeyer@nic.fr</a>> wrote:<br>
> Is this problem also responsible for the 911 outage? If so, the<br>
> post-mortem analysis is not useful only for CenturyLink customers but<br>
> for everyone on the west coast.<br>
<br>
Looks like most <a href="http://time.nist.gov" rel="noreferrer" target="_blank">time.nist.gov</a> servers (3 x NIST sites on AS49) are<br>
single homed on CenturyLink, anyone noticed NTP issues yesterday?<br>
<br>
<a href="https://tf.nist.gov/tf-cgi/servers.cgi" rel="noreferrer" target="_blank">https://tf.nist.gov/tf-cgi/servers.cgi</a></blockquote><div><br></div><div>NIST could take a hint from the <a href="http://ntp.br">ntp.br</a> project:</div><div><br></div>





<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><a href="http://pool.ntp.br">pool.ntp.br</a> has address 200.186.125.195 => CenturyLink</span></p><p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><a href="http://pool.ntp.br">pool.ntp.br</a> has address 200.20.186.76 => RNP (Local academic network)<br></span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><a href="http://pool.ntp.br">pool.ntp.br</a> has address 200.160.7.193 => NIC.br (Local ccTLD, IX, NTP and other services)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><a href="http://pool.ntp.br">pool.ntp.br</a> has address 200.160.7.186 => </span><span style="font-variant-ligatures:no-common-ligatures">NIC.br </span><br></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><a href="http://pool.ntp.br">pool.ntp.br</a> has address 200.160.7.209 => NIC.br</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><a href="http://pool.ntp.br">pool.ntp.br</a> has address 200.160.0.8 => NIC.br (distributed in different buildings, rack clusters, NTP hierarchy)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><a href="http://pool.ntp.br">pool.ntp.br</a> has IPv6 address 2001:12ff::8</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><a href="http://pool.ntp.br">pool.ntp.br</a> has IPv6 address 2001:12ff:0:7::186</span></p>
<div><span style="font-variant-ligatures:no-common-ligatures;color:rgb(0,0,0);font-family:Menlo;font-size:11px"><a href="http://pool.ntp.br">pool.ntp.br</a> has IPv6 address 2001:12ff:0:7::193</span> (unfortunately there is lack of IPv6 diversity at this point)</div><br><a href="http://a.st1.ntp.br">a.st1.ntp.br</a>  200.160.7.186 2001:12ff:0:7::186 => NIC.br<br><a href="http://b.st1.ntp.br">b.st1.ntp.br</a> 201.49.148.135 => STF (Local Supreme Court)<br><a href="http://c.st1.ntp.br">c.st1.ntp.br</a> 200.186.125.195 => CenturyLink<br><a href="http://d.st1.ntp.br">d.st1.ntp.br</a> 200.20.186.76 => RNP (Rio)<br><a href="http://a.ntp.br">a.ntp.br</a> 200.160.0.8 e 2001:12ff::8 => NIC.br<br><a href="http://b.ntp.br">b.ntp.br</a> 200.189.40.8 => Globenet Fortaleza (Cable Landing Station)<br><a href="http://c.ntp.br">c.ntp.br</a> 200.192.232.8 => RNP (Brasilia)<br><a href="http://gps.ntp.br">gps.ntp.br</a> 200.160.7.193 e 2001:12ff:0:7::193 => NIC.br </div><div class="gmail_quote"><br></div><div class="gmail_quote">Perhaps what happened in NIST was a bad governmental RFP not requiring diversity ? </div><div class="gmail_quote"><br></div><div class="gmail_quote"><br></div><div class="gmail_quote">Rubens</div><div class="gmail_quote"><br></div></div>