nanog mailing list archives
Re: Level 3's side of the story
From: Daniel Karrenberg <daniel.karrenberg () ripe net>
Date: Mon, 17 Oct 2005 10:38:49 +0200
On 16.10 16:04, Simon Leinen wrote:
Kevin Loch writes:Does anyone have reachability data for c-root during this episode?The RIPE NCC "DNSMON" service has some: http://dnsmon.ripe.net/dns-servmon/server/plot?server=c.root-servers.net&type=drops&tstart=1128246543&tstop=1128972253
If there is anyone with more comprehensive data I'd like to hear about it ;-) !
According to BGPlay for that particular prefix from Route-Views data (for some reason the RIPE RIS server used by BGPlay seems to be down at the moment), the "episode" seems to be between these times (UTC):
It is up now. Of the two routes to c.root-servers.net via Level 3 in that data set one stayed up during the period and the other got healed immediateely via AS286. It flipped back later.
...
The interval in the URL above starts 72 hours before the start of the episode and ends 72 hours after its end. I cannot see any particular problems that would coincide with the episode, from that set of probes (RIPE TTM).
I agree that there is nothing really significant here. It is mostly noise. What one is looking for in these graphs is strong vertical patterns. dnsmon did not detect anything significant concerning reachability of c.root-servers.net.
As someone else said, partial unreachability of a particular root nameserver isn't that much of an issue.
Indeed.
But it's an interesting question nevertheless.
A red instance of a fish from the northern seas ? Daniel
Current thread:
- Level 3's side of the story Richard A Steenbergen (Oct 07)
- Re: Level 3's side of the story William Allen Simpson (Oct 07)
- Re: Level 3's side of the story Patrick W. Gilmore (Oct 07)
- Re: Level 3's side of the story Ken Leland (Oct 07)
- Re: Level 3's side of the story Richard A Steenbergen (Oct 07)
- Re: Level 3's side of the story Kevin Loch (Oct 07)
- Re: Level 3's side of the story Robert E . Seastrom (Oct 08)
- Re: Level 3's side of the story Simon Leinen (Oct 16)
- Re: Level 3's side of the story Daniel Karrenberg (Oct 17)
- Re: Level 3's side of the story Patrick W. Gilmore (Oct 07)
- Re: Level 3's side of the story William Allen Simpson (Oct 07)
- Re: Level 3's side of the story william(at)elan.net (Oct 07)
- Re: Level 3's side of the story Deepak Jain (Oct 07)
- Re: Level 3's side of the story John Curran (Oct 07)
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- Re: Level 3's side of the story John Curran (Oct 07)
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- Re: Level 3's side of the story John Curran (Oct 07)
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- Re: Level 3's side of the story John Curran (Oct 07)
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- Re: Level 3's side of the story John Curran (Oct 08)
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- Re: Level 3's side of the story John Curran (Oct 09)