North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Routing loop between Qwest and Sprint?
>That'd lead me to believe that it's likely an issue internal to Sprint's >network, perhaps your query would be best directed to their NOC, versus NANOG. > I'd guess the greater majority of the NANOG distribution doesn't have access >to Sprint routers, so it's unlikely that they'll be able to correct the >problem. > >Directing your query to the Sprint NOC, or even Qwest NOC, is definitely much >more appropriate, assuming your concern is wrt regaining connectivity this >destination.. I tried opening a ticket by phone with Qwest's NOC. Guess what, I'm not a Qwest customer, so they couldn't find my account. I did send a message to Sprint. I haven't received a response from Sprint yet. I think if you check around, you'll find for those providers I have agreements with, I usually work out hairy problems with their senior network engineers pretty quickly, in private. For those providers who ditch me at their first-level support, I don't see an issue with bringing up the problem in other forum because I've found it helps get the problem fixed. However, like many things with routing, it is a bit simplistic to just say it is an issue internal to Sprint's network. It usually takes two providers to screw up inter-provider routing. This particular type of routing problem isn't that unusual, but it always seems to take a day for the two providers to stop saying call the other provider, and to actually clean everything up. It appears that Qwest announced a large set of more specific routes at one point in time for the CIDR block 205.169.0.0/16. Qwest tried to correct this at a later point, but it appears the problem in the software on some Sprint routers lost some of the route withdraws. odra-22>show ip bgp 205.169.153.240 255.255.0.0 longer [...] Network Next Hop Metric LocPrf Weight Path *>i205.169.0.0/16 192.41.177.120 100 0 286 209 i * 204.70.27.9 90 0 3561 209 i * 144.232.129.97 90 0 1239 209 i *> 205.169.17.0 144.232.129.97 90 0 1239 209 i *>i205.169.19.0 192.41.177.120 100 0 286 209 104 i * 204.70.27.9 90 0 3561 209 104 i * 144.232.129.97 90 0 1239 209 104 i *> 205.169.20.0 144.232.129.97 90 0 1239 209 i *> 205.169.21.0 144.232.129.97 90 0 1239 209 i *> 205.169.22.0 144.232.129.97 90 0 1239 209 i *> 205.169.23.0 144.232.129.97 90 0 1239 209 i *> 205.169.24.0 144.232.129.97 90 0 1239 209 i *> 205.169.25.0 144.232.129.97 90 0 1239 209 i *> 205.169.26.0 144.232.129.97 90 0 1239 209 i *> 205.169.27.0 144.232.129.97 90 0 1239 209 i *> 205.169.28.0 144.232.129.97 90 0 1239 209 i *> 205.169.29.0 144.232.129.97 90 0 1239 209 i *> 205.169.30.0 144.232.129.97 90 0 1239 209 i *> 205.169.37.0 144.232.129.97 90 0 1239 209 i *> 205.169.39.0 144.232.129.97 90 0 1239 209 i *> 205.169.40.0 144.232.129.97 90 0 1239 209 i *> 205.169.41.0 144.232.129.97 90 0 1239 209 i *> 205.169.42.0 144.232.129.97 90 0 1239 209 i *> 205.169.43.0 144.232.129.97 90 0 1239 209 i *> 205.169.45.0 144.232.129.97 90 0 1239 209 i *>i205.169.47.0 192.41.177.120 100 0 286 209 i * 144.232.129.97 90 0 1239 209 i * 204.70.27.9 90 0 3561 209 i *> 205.169.48.0 144.232.129.97 90 0 1239 209 i *> 205.169.49.0 144.232.129.97 90 0 1239 209 i *> 205.169.50.0 144.232.129.97 90 0 1239 209 i *> 205.169.51.0 144.232.129.97 90 0 1239 209 i *> 205.169.54.0 144.232.129.97 90 0 1239 209 i *> 205.169.55.0 144.232.129.97 90 0 1239 209 i *> 205.169.63.0 144.232.129.97 90 0 1239 209 i *> 205.169.68.0 144.232.129.97 90 0 1239 209 i *> 205.169.97.0 144.232.129.97 90 0 1239 209 i *> 205.169.101.0 144.232.129.97 90 0 1239 209 i *> 205.169.102.0 144.232.129.97 90 0 1239 209 i *> 205.169.105.0 144.232.129.97 90 0 1239 209 i *> 205.169.106.0 144.232.129.97 90 0 1239 209 i *> 205.169.107.0 144.232.129.97 90 0 1239 209 i *> 205.169.108.0 144.232.129.97 90 0 1239 209 i *> 205.169.112.0 144.232.129.97 90 0 1239 209 i *> 205.169.121.0 144.232.129.97 90 0 1239 209 i *> 205.169.122.0 144.232.129.97 90 0 1239 209 i *> 205.169.123.0 144.232.129.97 90 0 1239 209 i *> 205.169.124.0 144.232.129.97 90 0 1239 209 i *> 205.169.127.0 144.232.129.97 90 0 1239 209 i *> 205.169.134.0 144.232.129.97 90 0 1239 209 i *> 205.169.136.0 144.232.129.97 90 0 1239 209 i *> 205.169.137.0 144.232.129.97 90 0 1239 209 i *> 205.169.149.0 144.232.129.97 90 0 1239 209 i *> 205.169.153.0 144.232.129.97 90 0 1239 209 i *> 205.169.155.0 144.232.129.97 90 0 1239 209 i *> 205.169.158.0 144.232.129.97 90 0 1239 209 i *> 205.169.160.0 144.232.129.97 90 0 1239 209 i *> 205.169.163.0 144.232.129.97 90 0 1239 209 i *> 205.169.164.0 144.232.129.97 90 0 1239 209 i *> 205.169.165.0 144.232.129.97 90 0 1239 209 i *> 205.169.166.0 144.232.129.97 90 0 1239 209 i *> 205.169.170.0 144.232.129.97 90 0 1239 209 i *> 205.169.171.0 144.232.129.97 90 0 1239 209 i *> 205.169.174.0 144.232.129.97 90 0 1239 209 i *> 205.169.175.0 144.232.129.97 90 0 1239 209 i *> 205.169.177.0 144.232.129.97 90 0 1239 209 i *> 205.169.179.0 144.232.129.97 90 0 1239 209 i *> 205.169.180.0 144.232.129.97 90 0 1239 209 i *> 205.169.185.0 144.232.129.97 90 0 1239 209 i *> 205.169.188.0 144.232.129.97 90 0 1239 209 i *> 205.169.192.0 144.232.129.97 90 0 1239 209 i *> 205.169.198.0 144.232.129.97 90 0 1239 209 i *> 205.169.199.0 144.232.129.97 90 0 1239 209 i *> 205.169.200.0 144.232.129.97 90 0 1239 209 i *> 205.169.201.0 144.232.129.97 90 0 1239 209 i *> 205.169.203.0 144.232.129.97 90 0 1239 209 i *> 205.169.204.0 144.232.129.97 90 0 1239 209 i *> 205.169.205.0 144.232.129.97 90 0 1239 209 i *> 205.169.206.0 144.232.129.97 90 0 1239 209 i *> 205.169.207.0 144.232.129.97 90 0 1239 209 i *> 205.169.208.0 144.232.129.97 90 0 1239 209 i *> 205.169.210.0 144.232.129.97 90 0 1239 209 i *> 205.169.219.0 144.232.129.97 90 0 1239 209 i *> 205.169.222.0 144.232.129.97 90 0 1239 209 i *> 205.169.223.0 144.232.129.97 90 0 1239 209 i *> 205.169.226.0 144.232.129.97 90 0 1239 209 i *> 205.169.227.0 144.232.129.97 90 0 1239 209 i *> 205.169.228.0 144.232.129.97 90 0 1239 209 i *> 205.169.231.0 144.232.129.97 90 0 1239 209 i *> 205.169.232.0 144.232.129.97 90 0 1239 209 i *> 205.169.233.0 144.232.129.97 90 0 1239 209 i *> 205.169.234.0 144.232.129.97 90 0 1239 209 i *> 205.169.235.0 144.232.129.97 90 0 1239 209 i *> 205.169.237.0 144.232.129.97 90 0 1239 209 i *> 205.169.239.0 144.232.129.97 90 0 1239 209 i *> 205.169.245.0 144.232.129.97 90 0 1239 209 i *> 205.169.247.0 144.232.129.97 90 0 1239 209 i *> 205.169.251.0 144.232.129.97 90 0 1239 209 i *> 205.169.252.0 144.232.129.97 90 0 1239 209 i *> 205.169.254.0 144.232.129.97 90 0 1239 209 i odra-22> q later in the day, after my nanog message, it appears someone cleaned up that particular route. Notice the difference in the table below, 205.269.153.0 is no longer listed as a more specific. However, the other more specifics continued to be announced by Sprint. odra-22>show ip bgp 205.169.153.240 255.255.0.0 longer [...] Network Next Hop Metric LocPrf Weight Path *>i205.169.0.0/16 192.41.177.120 100 0 286 209 i * 204.70.27.9 90 0 3561 209 i * 144.232.129.97 90 0 1239 209 i *> 205.169.17.0 144.232.129.97 90 0 1239 209 i *>i205.169.19.0 192.41.177.120 100 0 286 209 104 i * 204.70.27.9 90 0 3561 209 104 i * 144.232.129.97 90 0 1239 209 104 i *> 205.169.20.0 144.232.129.97 90 0 1239 209 i *> 205.169.21.0 144.232.129.97 90 0 1239 209 i *> 205.169.22.0 144.232.129.97 90 0 1239 209 i *> 205.169.23.0 144.232.129.97 90 0 1239 209 i *> 205.169.24.0 144.232.129.97 90 0 1239 209 i *> 205.169.25.0 144.232.129.97 90 0 1239 209 i *> 205.169.26.0 144.232.129.97 90 0 1239 209 i *> 205.169.27.0 144.232.129.97 90 0 1239 209 i *> 205.169.28.0 144.232.129.97 90 0 1239 209 i *> 205.169.29.0 144.232.129.97 90 0 1239 209 i *> 205.169.30.0 144.232.129.97 90 0 1239 209 i *> 205.169.37.0 144.232.129.97 90 0 1239 209 i *> 205.169.39.0 144.232.129.97 90 0 1239 209 i *> 205.169.40.0 144.232.129.97 90 0 1239 209 i *> 205.169.41.0 144.232.129.97 90 0 1239 209 i *> 205.169.42.0 144.232.129.97 90 0 1239 209 i *> 205.169.43.0 144.232.129.97 90 0 1239 209 i *> 205.169.45.0 144.232.129.97 90 0 1239 209 i *>i205.169.47.0 192.41.177.120 100 0 286 209 i * 144.232.129.97 90 0 1239 209 i * 204.70.27.9 90 0 3561 209 i *> 205.169.48.0 144.232.129.97 90 0 1239 209 i *> 205.169.49.0 144.232.129.97 90 0 1239 209 i *> 205.169.50.0 144.232.129.97 90 0 1239 209 i *> 205.169.51.0 144.232.129.97 90 0 1239 209 i *> 205.169.54.0 144.232.129.97 90 0 1239 209 i *> 205.169.55.0 144.232.129.97 90 0 1239 209 i *> 205.169.63.0 144.232.129.97 90 0 1239 209 i *> 205.169.68.0 144.232.129.97 90 0 1239 209 i *> 205.169.97.0 144.232.129.97 90 0 1239 209 i *> 205.169.101.0 144.232.129.97 90 0 1239 209 i *> 205.169.102.0 144.232.129.97 90 0 1239 209 i *> 205.169.105.0 144.232.129.97 90 0 1239 209 i *> 205.169.106.0 144.232.129.97 90 0 1239 209 i *> 205.169.107.0 144.232.129.97 90 0 1239 209 i *> 205.169.108.0 144.232.129.97 90 0 1239 209 i *> 205.169.112.0 144.232.129.97 90 0 1239 209 i *> 205.169.121.0 144.232.129.97 90 0 1239 209 i *> 205.169.122.0 144.232.129.97 90 0 1239 209 i *> 205.169.123.0 144.232.129.97 90 0 1239 209 i *> 205.169.124.0 144.232.129.97 90 0 1239 209 i *> 205.169.127.0 144.232.129.97 90 0 1239 209 i *> 205.169.134.0 144.232.129.97 90 0 1239 209 i *> 205.169.136.0 144.232.129.97 90 0 1239 209 i *> 205.169.137.0 144.232.129.97 90 0 1239 209 i *> 205.169.149.0 144.232.129.97 90 0 1239 209 i *> 205.169.153.0 144.232.129.97 90 0 1239 209 i *> 205.169.155.0 144.232.129.97 90 0 1239 209 i *> 205.169.158.0 144.232.129.97 90 0 1239 209 i *> 205.169.160.0 144.232.129.97 90 0 1239 209 i *> 205.169.163.0 144.232.129.97 90 0 1239 209 i *> 205.169.164.0 144.232.129.97 90 0 1239 209 i *> 205.169.165.0 144.232.129.97 90 0 1239 209 i *> 205.169.166.0 144.232.129.97 90 0 1239 209 i *> 205.169.170.0 144.232.129.97 90 0 1239 209 i *> 205.169.171.0 144.232.129.97 90 0 1239 209 i *> 205.169.174.0 144.232.129.97 90 0 1239 209 i *> 205.169.175.0 144.232.129.97 90 0 1239 209 i *> 205.169.177.0 144.232.129.97 90 0 1239 209 i *> 205.169.179.0 144.232.129.97 90 0 1239 209 i *> 205.169.180.0 144.232.129.97 90 0 1239 209 i *> 205.169.185.0 144.232.129.97 90 0 1239 209 i *> 205.169.188.0 144.232.129.97 90 0 1239 209 i *> 205.169.192.0 144.232.129.97 90 0 1239 209 i *> 205.169.198.0 144.232.129.97 90 0 1239 209 i *> 205.169.199.0 144.232.129.97 90 0 1239 209 i *> 205.169.200.0 144.232.129.97 90 0 1239 209 i *> 205.169.201.0 144.232.129.97 90 0 1239 209 i *> 205.169.203.0 144.232.129.97 90 0 1239 209 i *> 205.169.204.0 144.232.129.97 90 0 1239 209 i *> 205.169.205.0 144.232.129.97 90 0 1239 209 i *> 205.169.206.0 144.232.129.97 90 0 1239 209 i *> 205.169.207.0 144.232.129.97 90 0 1239 209 i *> 205.169.208.0 144.232.129.97 90 0 1239 209 i *> 205.169.210.0 144.232.129.97 90 0 1239 209 i *> 205.169.219.0 144.232.129.97 90 0 1239 209 i *> 205.169.222.0 144.232.129.97 90 0 1239 209 i *> 205.169.223.0 144.232.129.97 90 0 1239 209 i *> 205.169.226.0 144.232.129.97 90 0 1239 209 i *> 205.169.227.0 144.232.129.97 90 0 1239 209 i *> 205.169.228.0 144.232.129.97 90 0 1239 209 i *> 205.169.231.0 144.232.129.97 90 0 1239 209 i *> 205.169.232.0 144.232.129.97 90 0 1239 209 i *> 205.169.233.0 144.232.129.97 90 0 1239 209 i *> 205.169.234.0 144.232.129.97 90 0 1239 209 i *> 205.169.235.0 144.232.129.97 90 0 1239 209 i *> 205.169.237.0 144.232.129.97 90 0 1239 209 i *> 205.169.239.0 144.232.129.97 90 0 1239 209 i *> 205.169.245.0 144.232.129.97 90 0 1239 209 i *> 205.169.247.0 144.232.129.97 90 0 1239 209 i *> 205.169.251.0 144.232.129.97 90 0 1239 209 i *> 205.169.252.0 144.232.129.97 90 0 1239 209 i *> 205.169.254.0 144.232.129.97 90 0 1239 209 i odra-22> q This afternoon, it appears someone has done some more cleanup. But hasn't gotten all of the more specifics yet. odra-22>show ip bgp 205.169.153.240 255.255.0.0 longer [...] Network Next Hop Metric LocPrf Weight Path *>i205.169.0.0/16 192.41.177.120 100 0 286 209 i * 204.70.27.9 90 0 3561 209 i * 144.232.129.97 90 0 1239 209 i *>i205.169.19.0 192.41.177.120 100 0 286 209 104 i * 204.70.27.9 90 0 3561 209 104 i * 144.232.129.97 90 0 1239 209 104 i *> 205.169.20.0 144.232.129.97 90 0 1239 209 i *>i205.169.47.0 192.41.177.120 100 0 286 209 i * 144.232.129.97 90 0 1239 209 i * 204.70.27.9 90 0 3561 209 i *> 205.169.48.0 144.232.129.97 90 0 1239 209 i *> 205.169.49.0 144.232.129.97 90 0 1239 209 i *> 205.169.50.0 144.232.129.97 90 0 1239 209 i *> 205.169.51.0 144.232.129.97 90 0 1239 209 i *> 205.169.54.0 144.232.129.97 90 0 1239 209 i *> 205.169.121.0 144.232.129.97 90 0 1239 209 i *> 205.169.134.0 144.232.129.97 90 0 1239 209 i *> 205.169.164.0 144.232.129.97 90 0 1239 209 i *> 205.169.223.0 144.232.129.97 90 0 1239 209 i *> 205.169.237.0 144.232.129.97 90 0 1239 209 i *> 205.169.239.0 144.232.129.97 90 0 1239 209 i odra-22>q -- Sean Donelan, Data Research Associates, Inc, St. Louis, MO Affiliation given for identification not representation
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