Re: Sicily to Egypt undersea cable disruption
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -- Sean Donelan <sean@donelan.com> wrote:
If its not one cable, its another cable.
http://www.guardian.co.uk/technology/2008/jan/30/asia.internet.outage
Huge swathes of the Middle East and Asia have been left without internet access after a vital undersea cable was damaged.
For what its worth, Todd Underwood has a very good overview of the countries affected by this outage over on the Renesys Blog here: http://www.renesys.com/blog/2008/01/mediterranean_cable_break.shtml - - ferg -----BEGIN PGP SIGNATURE----- Version: PGP Desktop 9.6.3 (Build 3017) wj8DBQFHoSrHq1pz9mNUZTMRAiFhAJ9y8gg/gSbXmPnYJhGKn5ZmlHXz3gCgkL7d U19z4eSg5DsEvUjhfzo9J8E= =v3bo -----END PGP SIGNATURE----- -- "Fergie", a.k.a. Paul Ferguson Engineering Architecture for the Internet fergdawg(at)netzero.net ferg's tech blog: http://fergdawg.blogspot.com/
What I see from our Cogent transit is that Egypt has completely fallen off the map, with a normally consistent traffic gone to zero, but traffic to Iran, Iraq, the GCC, India and Pakistan and even Yemen doesn't seem to be affected, at least not noticeably. Regards Marshall On Jan 31, 2008, at 1:56 AM, Paul Ferguson wrote:
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- -- Sean Donelan <sean@donelan.com> wrote:
If its not one cable, its another cable.
http://www.guardian.co.uk/technology/2008/jan/30/asia.internet.outage
Huge swathes of the Middle East and Asia have been left without internet access after a vital undersea cable was damaged.
For what its worth, Todd Underwood has a very good overview of the countries affected by this outage over on the Renesys Blog here:
http://www.renesys.com/blog/2008/01/mediterranean_cable_break.shtml
- - ferg
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-- "Fergie", a.k.a. Paul Ferguson Engineering Architecture for the Internet fergdawg(at)netzero.net ferg's tech blog: http://fergdawg.blogspot.com/
On Thu, Jan 31, 2008 at 01:56:42AM +0000, Paul Ferguson wrote:
For what its worth, Todd Underwood has a very good overview of the countries affected by this outage over on the Renesys Blog here:
http://www.renesys.com/blog/2008/01/mediterranean_cable_break.shtml
while i very much appreciate the compliment, this work was all done by my colleagues at renesys earl zmijewski and alin popescu. i've been following the routing events around this cable break, though. there are some interesting findings here about who (what carriers, what countries) were critically dependant on these cable systems. we'll probably put some more effort into analyzing this situation as it develops and compare it to the taiwan outages that hit late 2006. (nanog program plug: my colleague martin a brown will be presenting and update on the way that the taiwan quake outages continue to affect transit and peering patterns in asia over a year after the original cable breaks: http://nanog.org/mtg-0802/brown.html . if you're interested in this subject you should probably register for nanog42 ( https://www.nanog.org/registration/ ) and attend.) if there's enough interest in this event, we'll do a lighting talk <plug type="another"> lighting talk submissions are already open at: http://nanogpc.org/lighting </plug> we'll monitor the situation and this community's level of interest and allocate our energies accordingly. :-) see y'all in sjc. t. -- _____________________________________________________________________ todd underwood +1 603 643 9300 x101 renesys corporation general manager babbledog todd@renesys.com http://www.renesys.com/blog
On Jan 30, 2008 9:41 PM, Todd Underwood <todd-nanog@renesys.com> wrote:
On Thu, Jan 31, 2008 at 01:56:42AM +0000, Paul Ferguson wrote:
For what its worth, Todd Underwood has a very good overview of the countries affected by this outage over on the Renesys Blog here:
http://www.renesys.com/blog/2008/01/mediterranean_cable_break.shtml
while i very much appreciate the compliment, this work was all done by my colleagues at renesys earl zmijewski and alin popescu. i've been following the routing events around this cable break, though.
there are some interesting findings here about who (what carriers, what countries) were critically dependant on these cable systems.
In the Med/IO cable case, a ship dropped an anchor on the cable, something that is 1:1,000,000 shot, but happens. At least they know where it is. The failure to contract the maintenance ship tighter on a route that turns out to be "that vulnerable" is probably of concer for users of that cable now as well. A lot of the impact is likely also due to people not buying protect circuits or bothering to understand the IP architecture. That is something that is becoming common globally, IMHO. Folks assume that IP will route around the damage. Sure it will, if all the physical layer paths aren't busted. Layer 1 really does "rock". Watching BGP announcements seems "less important" in these erious performance impacting cases, to me, than understanding the underlying architecture and what the root cause a half step above the anchor and a half a step below the advertisement was. Looking forward to Rod Beck's response. :-) Best, Marty
On Thu, Jan 31, 2008 at 02:41:22AM +0000, Todd Underwood wrote:
On Thu, Jan 31, 2008 at 01:56:42AM +0000, Paul Ferguson wrote:
For what its worth, Todd Underwood has a very good overview of the countries affected by this outage over on the Renesys Blog here:
http://www.renesys.com/blog/2008/01/mediterranean_cable_break.shtml
there are some interesting findings here about who (what carriers, what countries) were critically dependant on these cable systems. we'll probably put some more effort into analyzing this situation as it develops and compare it to the taiwan outages that hit late 2006.
an FYI for anyone looking to do hosting/connectivity to Dubai or the UAE: there are only two providers in the UAE, etisalat and du. while du is either completely offline, or pushing all its traffic across what appeared to be single dial-up ISDN link 8^), etisalat seems largely uneffected. (connectivity from my du connected office was barely useable, while my du connected residence was completely offline, connectivity from my etisalat connected co-lo and etisalat connected office are operating pretty much at norm, which is to say, not quite what i'd expect for north america, but quite acceptable for the region) the downside is that du is the "progressive" provider, while etisalat continues to filter and block various and sundry sites and facilities based on complaints from its more conservative customers (porn, dating sites, and social networking sites like facebook/etc) and techno-political bents (ie. many sites relative to VoIP and web proxies are blocked) -- Jim Mercer jim@reptiles.org +971 55 410-5633 "I'm Prime Minister of Canada, I live here and I'm going to take a leak." - Lester Pearson in 1967, during a meeting between himself and President Lyndon Johnson, whose Secret Service detail had taken over Pearson's cottage retreat. At one point, a Johnson guard asked Pearson, "Who are you and where are you going?"
participants (5)
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Jim Mercer -
Marshall Eubanks -
Martin Hannigan -
Paul Ferguson -
Todd Underwood