Hey folks.
I'm working with my friends at National Public Radio. They're having network problems, and I'm not sure the correct people at UUNet to report this anomaly to. The answer NPR got from UUNet was: MFS trouble in Dallas. Does that make sense?
any suggestions?
thanks in advance. sorry for the interruption.
# /usr/local/bin/traceroute npr.org traceroute to npr.org (199.0.132.69), 30 hops max, 40 byte packets 1 router.butterfly.net (199.73.40.1) 7 ms 5 ms 3 ms 2 s0.router.clark.net (199.73.41.254) 12 ms 15 ms 12 ms 3 sl-dc-1-S19-T1.sprintlink.net (144.228.4.1) 19 ms 29 ms 17 ms 4 sl-dc-8-F0/0.sprintlink.net (144.228.20.8) 21 ms 19 ms 17 ms 5 sl-mae-e-H2/0-T3.sprintlink.net (144.228.10.42) 26 ms 18 ms 19 ms 6 Vienna1.VA.Alter.Net (192.41.177.249) 26 ms 297 ms * 7 sl-mae-e-F0/0.sprintlink.net (192.41.177.241) 22 ms 31 ms 44 ms 8 Vienna1.VA.Alter.Net (192.41.177.249) 62 ms 87 ms * 9 sl-mae-e-F0/0.sprintlink.net (192.41.177.241) 37 ms 36 ms 28 ms 10 Vienna1.VA.Alter.Net (192.41.177.249) 63 ms 83 ms 77 ms 11 sl-mae-e-F0/0.sprintlink.net (192.41.177.241) 21 ms 32 ms 27 ms 12 Vienna1.VA.Alter.Net (192.41.177.249) 40 ms 50 ms 68 ms 13 sl-mae-e-F0/0.sprintlink.net (192.41.177.241) 33 ms 19 ms 31
Well, at a zero-level information point (which is all I have from here :-) this looks like Sprintlink thinks that network is reachable via Alternet, and Alternet thinks it is reachable via Sprintlink. Thus the looping. I'd contact the respective NOCs and let them hash it out. At least one of these two is (obviously) wrong. :-) -- -- Karl Denninger (karl@MCS.Net)| MCSNet - The Finest Internet Connectivity Modem: [+1 312 248-0900] | (shell, PPP, SLIP, leased) in Chicagoland Voice: [+1 312 248-8649] | 7 POPs online through Chicago, all 28.8 Fax: [+1 312 248-9865] | Email to "info@mcs.net" for more information ISDN: Surf at Smokin' Speed | WWW: http://www.mcs.net, gopher: gopher.mcs.net