<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
span.EmailStyle19
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle20
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Thanks for the input, things are all fixed up now. =)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Frank<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> foundry-nsp [mailto:foundry-nsp-bounces@puck.nether.net] <b>On Behalf Of </b>frnkblk@iname.com<br><b>Sent:</b> Tuesday, October 04, 2016 8:45 PM<br><b>To:</b> 'James Cornman' <james@atlanticmetro.net><br><b>Cc:</b> foundry-nsp@puck.nether.net<br><b>Subject:</b> Re: [f-nsp] Routes being installed, even though they're filtered out<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>James,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>I think you found it …. learned from the IX’s route-reflector … looks like I need to apply the route filter on that session, too. And it matches with the AS6939’s recent work to send more IPv4 prefixes to AS53679.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>MLXe-4#show ip bgp route detail 167.142.0.0<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Number of BGP Routes matching display condition : 2<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Status A:AGGREGATE B:BEST b:NOT-INSTALLED-BEST C:CONFED_EBGP D:DAMPED<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> E:EBGP H:HISTORY I:IBGP L:LOCAL M:MULTIPATH m:NOT-INSTALLED-MULTIPATH<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> S:SUPPRESSED F:FILTERED s:STALE<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>1 Prefix: 167.142.0.0/24, Status: BE, Age: 2h7m48s<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> NEXT_HOP: 206.108.255.52, Metric: 0, Learned from Peer: 206.108.255.1 (53679)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> LOCAL_PREF: 100, MED: 80, ORIGIN: igp, Weight: 0<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> AS_PATH: 6939 5056<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> COMMUNITIES: 0:2906 0:12989 0:13335 0:15133 0:15169 0:16509 0:20940 0:22822 0:36040<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>2 Prefix: 167.142.0.0/24, Status: E, Age: 4h45m44s<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> NEXT_HOP: 206.108.255.52, Metric: 0, Learned from Peer: 206.108.255.2 (53679)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> LOCAL_PREF: 100, MED: 80, ORIGIN: igp, Weight: 0<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> AS_PATH: 6939 5056<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> COMMUNITIES: 0:2906 0:12989 0:13335 0:15133 0:15169 0:16509 0:20940 0:22822 0:36040<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Last update to IP routing table: 4h45m44s, 1 path(s) installed:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Route is not advertised to any peers<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>MLXe-4#<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Frank<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> James Cornman [<a href="mailto:james@atlanticmetro.net">mailto:james@atlanticmetro.net</a>] <br><b>Sent:</b> Tuesday, October 04, 2016 8:37 PM<br><b>To:</b> <a href="mailto:frnkblk@iname.com">frnkblk@iname.com</a><br><b>Cc:</b> <a href="mailto:foundry-nsp@puck.nether.net">foundry-nsp@puck.nether.net</a><br><b>Subject:</b> Re: [f-nsp] Routes being installed, even though they're filtered out<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Try <o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>#show ip bgp route detail 167.142.0.0<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>To see if its possibly coming from a different neighbor that isn't subject to that filtering? I've seen that in other situations where routes are learned from a route-server at an exchange point, and not the direct peer, and its not 100% obvious of that until you see what session it came from.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>-James<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On Tue, Oct 4, 2016 at 9:12 PM, <<a href="mailto:frnkblk@iname.com" target="_blank">frnkblk@iname.com</a>> wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'><p class=MsoNormal>We're running 5.6ff on an MLXe-4 and after BGP sessions hiccupped this<br>afternoon we saw a route installed, even though it's filtered out.<br><br>I feel like a newbie asking this question ... but why is the route<br>installed, even though it's clearly configured to be filtered out and shown<br>as a filtered route?<br><br>MLXe-4#show ip bgp routes 167.142.0.0<br>Number of BGP Routes matching display condition : 2<br>Status A:AGGREGATE B:BEST b:NOT-INSTALLED-BEST C:CONFED_EBGP D:DAMPED<br> E:EBGP H:HISTORY I:IBGP L:LOCAL M:MULTIPATH m:NOT-INSTALLED-MULTIPATH<br> S:SUPPRESSED F:FILTERED s:STALE<br> Prefix Next Hop MED LocPrf Weight<br>Status<br>1 <a href="http://167.142.0.0/24" target="_blank">167.142.0.0/24</a> 206.108.255.52 80 100 0 BE<br> AS_PATH: 6939 5056<br>2 <a href="http://167.142.0.0/24" target="_blank">167.142.0.0/24</a> 206.108.255.52 80 100 0 E<br> AS_PATH: 6939 5056<br> Last update to IP routing table: 3h43m33s, 1 path(s) installed:<br> Route is not advertised to any peers<br>MLXe-4#<br>MLXe-4#show ip bgp filtered-routes detail | begin 167.142.0.0<br>129 Prefix: <a href="http://167.142.0.0/16" target="_blank">167.142.0.0/16</a>, Status: EF, Age: 4h55m44s<br> NEXT_HOP: 206.108.255.52, Metric: 0, Learned from Peer:<br>206.108.255.52 (6939)<br> LOCAL_PREF: 100, MED: 0, ORIGIN: igp, Weight: 0<br> AS_PATH: 6939 5056<br>130 Prefix: <a href="http://167.142.0.0/24" target="_blank">167.142.0.0/24</a>, Status: EF, Age: 4h55m44s<br> NEXT_HOP: 206.108.255.52, Metric: 0, Learned from Peer:<br>206.108.255.52 (6939)<br> LOCAL_PREF: 100, MED: 0, ORIGIN: igp, Weight: 0<br> AS_PATH: 6939 5056<br>131 Prefix: <a href="http://167.142.2.0/24" target="_blank">167.142.2.0/24</a>, Status: EF, Age: 4h55m36s<br> NEXT_HOP: 206.108.255.52, Metric: 0, Learned from Peer:<br>206.108.255.52 (6939)<br> LOCAL_PREF: 100, MED: 0, ORIGIN: igp, Weight: 0<br> AS_PATH: 6939 5056<br> ATOMIC_AGGREGATE: set, AGGREGATOR: 65502(167.142.2.2)<br>...<br>MLXe-4#<br>MLXe-4#show ip as-path-access-lists<br>ip as-path access list HE_INBOUND: 3 entries<br> seq 10 deny ^6939_5056$<br> seq 20 deny ^6939_5056_.*$<br> seq 30 permit ^6939_.*<br>MLXe-4#<br>MLXe-4#sho ip bgp neighbors 206.108.255.52 | inc Filter<br> Filter-list: (in) HE_INBOUND<br>MLXe-4 #<br><br><br>Frank<br><br>_______________________________________________<br>foundry-nsp mailing list<br><a href="mailto:foundry-nsp@puck.nether.net">foundry-nsp@puck.nether.net</a><br><a href="http://puck.nether.net/mailman/listinfo/foundry-nsp" target="_blank">http://puck.nether.net/mailman/listinfo/foundry-nsp</a><o:p></o:p></p></blockquote></div><p class=MsoNormal><br><br clear=all><o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>-- <o:p></o:p></p><div><div><div><div><div><p style='margin:0in;margin-bottom:.0001pt'><b><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333;background:white'>James Cornman</span></b><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333;background:white'><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><i><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333;background:white'>Chief Technology Officer<br></span></i><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333;background:white'><a href="mailto:jcornman@atlanticmetro.net" target="_blank">jcornman@atlanticmetro.net</a><br>212.792.9950 - ext 101<br></span><b><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:black;background:white'><br>Atlantic Metro Communications</span></b><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333;background:white'><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><i><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333;background:white'>4 Century Drive, Parsippany NJ 07054</span></i><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333;background:white'><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt'><i><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333;background:white'><br></span></i><i><span style='font-size:10.0pt;color:#333333;background:white'>Colocation • Cloud Hosting • Network Connectivity • Managed Services</span></i><span style='background:white'><br></span><span style='font-size:10.0pt;color:#333333;background:white'>Follow us on Twitter: <a href="https://twitter.com/atlanticmetro" target="_blank">@atlanticmetro</a> <i>• Like us on <a href="https://www.facebook.com/atlanticmetro" target="_blank">Facebook</a></i></span><span style='background:white'><br><a href="https://www.atlanticmetro.net/" target="_blank"><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#5797B0'>www.atlanticmetro.net</span></a><o:p></o:p></span></p></div></div></div></div></div></div></div></body></html>