http://status.twitter.com/post/124145031/maintenance-window-tonight-9-45p-pacific
Am I reading that right? Is someone at Verio seriously going to take twitter out
for 90 minutes at 9am in Tehran?
Erik Fichtner wrote:
http://status.twitter.com/post/124145031/maintenance-window-tonight-9-45p-pacific
Am I reading that right? Is someone at Verio seriously going to take twitter out
for 90 minutes at 9am in Tehran?
I am reading it wrong, partially. It's NTT America, not Verio. Missed a layer.
Anyway...
Why would NTT take it out for the whole world when DCI could just block it from Iran?
--b
I know they're not actually making any money, so they may not be able to afford it, but shouldn't a service that's trying to be as big as twitter be multihomed?
they got 35 million lately and there was arumor that apple wnted to buy twitter for 700 million so i think money is not an issue!!!
http://bits.blogs.nytimes.com/2009/02/13/twitter-raises-35-million/
Brandon Galbraith wrote:
http://status.twitter.com/post/124145031/maintenance-window-tonight-9-45p-pacific
You sure it's their network, and not Twitter's core/edge?
They're blaming it on their upstream.
Twitter doesn't run their own core or edge. It's all in the NTT "cloud".
Yep, that's what it says. Things like "critical network upgrades" sometimes
don't wait for good timing - they make their own special event.
Stephen Repetski wrote:
Yep, that's what it says. Things like "critical network upgrades" sometimes
don't wait for good timing - they make their own special event.
And yet, all upgrades can be postponed with the right... motivation.
http://blog.twitter.com/2009/06/down-time-rescheduled.html
Nice save, NTT.
But not without a nice plug from Twitter, though it's a nice gesture. Which
brings me back to the question why Twitter isn't multi-homed, or what the
nature of the "network upgrade" is that it brings down their entire network.
Erik Fichtner wrote:
And yet, all upgrades can be postponed with the right... motivation.
Hmmm, you do know that motivation may have strictly been, "Your maintenance corresponds with a major event, can you put it off for a day?"
The maintenance in question has obviously been marked critical by NTTA with what appears to be short notification and limiting the delay to a minimum. They may have been unaware of the event and its importance to their customers.
I'm more curious about what maintenance they are actually performing. I know they run mixed Cisco/Juniper, and all their Junipers should be able to handle in service upgrades. Of course, even switching hits of an upgrade warrants setting a maintenance window and notification due to Murphy.
Jack
What's interesting is that the !NANOG part of the universe presumes the maintenance was to be performed by Twitter, not by their carrier (i.e. server, not network, upgrades). Given the fact that the WhaleFail has become a commonly-recognizable sight, I can see this make people a bit, um, nervous. The real impact of the maintenance would have most likely been minimal short of a Murphy strike.
That said, kudos to NTT for backing off in the face of some pretty momentous current events, and hope the delay doesn't cause too many ripple-effect problems for them.
-C
Erik Fichtner wrote:
And yet, all upgrades can be postponed with the right... motivation.
Hmmm, you do know that motivation may have strictly been, "Your maintenance corresponds with a major event, can you put it off for a day?"
The maintenance in question has obviously been marked critical by NTTA with what appears to be short notification and limiting the delay to a minimum. They may have been unaware of the event and its importance to their customers.
I'm more curious about what maintenance they are actually performing. I know they run mixed Cisco/Juniper, and all their Junipers should be able to handle in service upgrades. Of course, even switching hits of an upgrade warrants setting a maintenance window and notification due to Murphy.
Tehran is currently UTC/GMT +4:30 hours. The current downtime is for 2:00 PM Pacific, or 1:30 AM in
Tehran. That seems to be unfortunately still "prime time" for the nightly demonstrations, one of which is
going on now.
If the idea is to avoid such collisions, 5:00 PM or even 6:00 PM PDT would probably be better.
Regards
Marshall
Speaking of critical timings and "demonstrations", anyone in the community have contacts/ideas for "last mile" connections in Teheran? The protesters are getting blocked right and left trying to get 'net access.
There are some, ehrm, "boxen" out on the 'net to allow them to get around the active blocking going on, but most of the citizen reporters are unable to even get a conection to allow proxying out. Some serious censoring of 'net access going on.
Just curious - replies off list if desired. Thanks in advance.
According to
http://feeds.arstechnica.com/~r/arstechnica/index/~3/k32Wx4r_vew/twitter-from-statedept-delay-upgrade-to-aid-iran-protests.ars
the delay was requested by the U.S. State Department.
--Steve Bellovin, http://www.cs.columbia.edu/~smb
Doesn't DCI still control things there? If so, they could cut Iran
off from the world very easily if they wanted.
An update here. Reuters is reporting that the US State Department is behind this maintenance being pushed back.
I find it very interesting that the US government is seeing the use Twitter is getting from a political perspective.
Alex Thurlow
Blastro Networks
http://www.blastro.com
http://www.roxwel.com
http://www.yallwire.com
Iran breaks their communications infrastructure into pseudo-zones. You can
easily pinpoint a few choke points and surgically remove them from the
Internet.
This is the case for many countries. Sometimes the infrastructure is so
hierarchically designed (likely for surveillance purposes) that you could
literally watch their bgp advertisements and potentially draw conclusions
about things "other than" Internet activity.
Best Regards,
-M<