Routing Loop

S. Ryan auser at mind.net
Sun Mar 16 04:10:53 UTC 2008


I see this at 9:10pm PST:

traceroute uu-194-009-082-001.uunet.co.ke
traceroute to uu-194-009-082-001.uunet.co.ke (194.9.82.1), 64 hops max, 
40 byte packets
  1  64-192-2-193.static.unwiredbb.com (64.192.2.193)  14 ms  15 ms  14 ms
  2  64-192-0-253.static.unwiredbb.com (64.192.0.253)  15 ms  14 ms  14 ms
  3  so-5-3.ipcolo1.SanFrancisco1.Level3.net (4.78.240.37)  19 ms  28 ms 
  25 ms
  4  so-6-1-0.mp2.SanFrancisco1.Level3.net (4.68.96.145)  25 ms  20 ms 
21 ms
  5  as-0-0.bbr1.London1.Level3.net (4.68.128.109)  157 ms  157 ms 
ae-1-0.bbr2.London1.Level3.net (212.187.128.57)  158 ms
  6  * ae-14-55.car3.London1.Level3.net (4.68.116.145)  448 ms  289 ms
  7  195.50.113.18 (195.50.113.18)  231 ms  318 ms  231 ms
  8  217.194.157.226 (217.194.157.226)  754 ms  753 ms  746 ms
  9  217.194.157.225 (217.194.157.225)  755 ms  735 ms  730 ms
10  fe2-0-br.nbo.infinet.co.ke (41.207.64.245)  758 ms  744 ms  792 ms
11  ge0-2-pdsn.nbo.infinet.co.ke (41.207.64.254)  772 ms  764 ms  753 ms
12  ge0-1-br.nbo.infinet.co.ke (41.207.64.253)  736 ms  742 ms  776 ms
13  ge0-2-pdsn.nbo.infinet.co.ke (41.207.64.254)  745 ms  752 ms  747 ms
14  ge0-1-br.nbo.infinet.co.ke (41.207.64.253)  746 ms  735 ms  758 ms
15  ge0-2-pdsn.nbo.infinet.co.ke (41.207.64.254)  749 ms  740 ms  753 ms
16  ge0-1-br.nbo.infinet.co.ke (41.207.64.253)  746 ms  737 ms  757 ms
17  ge0-2-pdsn.nbo.infinet.co.ke (41.207.64.254)  740 ms  741 ms  738 ms
18  ge0-1-br.nbo.infinet.co.ke (41.207.64.253)  746 ms  742 ms  737 ms
19  ge0-2-pdsn.nbo.infinet.co.ke (41.207.64.254)  753 ms  771 ms  744 ms
20  ge0-1-br.nbo.infinet.co.ke (41.207.64.253)  735 ms  763 ms  738 ms
21  ge0-2-pdsn.nbo.infinet.co.ke (41.207.64.254)  779 ms  742 ms  819 ms
22  ge0-1-br.nbo.infinet.co.ke (41.207.64.253)  753 ms  768 ms  738 ms
23  ge0-2-pdsn.nbo.infinet.co.ke (41.207.64.254)  764 ms  749 ms  745 ms
24  ge0-1-br.nbo.infinet.co.ke (41.207.64.253)  766 ms  760 ms  761 ms
25  ge0-2-pdsn.nbo.infinet.co.ke (41.207.64.254)  746 ms  743 ms  808 ms
26


Bill Stewart wroteth on 3/15/2008 9:01 PM:
> 7018 is still seeing announcements from 6461,
> and the Oregon Routeviews server route-views.routeviews.org also sees
> many announcements
> from different ISPs seeing it announced from 6461.
> 
> The whois entry for Above.net lists the NOC as
>    RTechHandle: NOC41-ORG-ARIN
>    RTechName:   AboveNet NOC
>    RTechPhone:  +1-877-479-7378
>    RTechEmail:  noc at above.net
> 
> 
> 
> On Sat, Mar 15, 2008 at 1:10 AM, Felix Bako <fbako at africaonline.co.ke>
> wrote to NANOG
>>  Hello,
>>  Guyz please try to reach my network 194.9.82.0/24 from your networks.
>>  Am seeeing routing loops from several looking glasses.
>>  above.net, Alameda.net. but from traceroute.eu. the block comes down ok.
>>  Kindly anyone assist.
>>  --
>>
>>  Best Regards,
>>
>>  Felix Bako
>>  Network Engineer
>>  Africa Online, Kenya
>>  Tel: +254 (20) 27 92 000
>>  Fax: +254 (20) 27 100 10
>>  Email: fbako at africaonline.co.ke
>>  Aim:felixbako
> 



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