Re: IPv6 woes - RFC

On September 15, 2021 at 15:40 sa...@cluecentral.net (Sabri Berisha) wrote: > - On Sep 15, 2021, at 2:20 PM, b...@theworld.com wrote: > > Hi, > > > The 600 ton elephant in the room is anyone could right now sit down > > and design and deploy some alternative to IPv4/IPv6 and from the

Re: Never push the Big Red Button (New York City subway failure)

- On Sep 15, 2021, at 9:08 PM, bzs b...@theworld.com wrote: Hi, > People don't suffocate from Halon dumps, I've been thru a couple (not > me personally but staff, I was in my office but arrived quickly.) > > What is somewhat dangerous about Halon (or likely more modern) fire > suppression du

Re: Never push the Big Red Button (New York City subway failure)

Miy story in the late 1970s I was working in a large computer facility with both mainframes and mil-spec 400hz computers. Management decided that the EPO should be tested.  So we powered down the disk and tapes.  The electrician pressed the EPO button and NOTHING.  Everything kept running. Turn

Re: Never push the Big Red Button (New York City subway failure)

On September 15, 2021 at 13:31 war...@kumari.net (Warren Kumari) wrote: > Well, there is the EPO button, which generally does that, and the (variously > labeled) HALON/FM-200/GAS FIRE SUPPRESSION/GAS DISCHARGE button, which does > the > flashy lights and klangly bell and similar. This is fai

Re: Never push the Big Red Button

Totally agree @billy, could've put it better myself. Though it's much more entertaining (and terrifying) to wince at the audible difference between just the hardware whirring to a silence, and all of the temp and humidity controls whirring to a halt with the hardware. The fear in the air is literal

Re: Never push the Big Red Button

Indeed. Few sounds in the data center haunt me quite as much as a sensation that the decibel level has just decreased significantly. On Wed, Sep 15, 2021, 4:14 PM Keith Stokes wrote: > The bigger thing to notice is the *lack* of noise as every server, switch > and storage system spins down. > >

Re: IPv6 woes - RFC

On 9/15/21 4:26 PM, Owen DeLong wrote: On Sep 15, 2021, at 16:20 , Michael Thomas > wrote: On 9/14/21 12:44 AM, Eliot Lear wrote: There were four proposals for the IPng: * NIMROD, PIP, SIP, and TUBA SIP was the one that was chosen, supported by endpoint manufactu

Re: IPv6 woes - RFC

> On Sep 15, 2021, at 16:20 , Michael Thomas wrote: > > > > On 9/14/21 12:44 AM, Eliot Lear wrote: >> >> There were four proposals for the IPng: >> >> NIMROD, PIP, SIP, and TUBA >> SIP was the one that was chosen, supported by endpoint manufacturers such as >> Sun and SGI, and it was the M

Re: IPv6 woes - RFC

On 9/14/21 12:44 AM, Eliot Lear wrote: There were four proposals for the IPng: * NIMROD, PIP, SIP, and TUBA SIP was the one that was chosen, supported by endpoint manufacturers such as Sun and SGI, and it was the MOST compatible.  Operators and router manufacturers at the time pushed TUBA

Re: Never push the Big Red Button (New York City subway failure)

> On Sep 15, 2021, at 2:20 PM, Fred Baker wrote: > > One of the many stories that came out of 9/11 was a switching center in NY > City that had a diesel generator as a power backup - which of course acted as > primary when the city power is off. After a few days of operation, it needed > to

Re: IPv6 woes - RFC

- On Sep 15, 2021, at 2:20 PM, b...@theworld.com wrote: Hi, > The 600 ton elephant in the room is anyone could right now sit down > and design and deploy some alternative to IPv4/IPv6 and from there > begin writing down how they did it as a series of standards documents > and encourage other

Re: IPv6 woes - RFC

It appears that Baldur Norddahl said: According to Baldur Norddahl : >> Number portability database is looked up after the call >> reaches the destination country, which will be used for >> further intra-national routing, which do not affect >> country-wise aggregation of international routing tab

Re: IPv6 woes - RFC

The 600 ton elephant in the room is anyone could right now sit down and design and deploy some alternative to IPv4/IPv6 and from there begin writing down how they did it as a series of standards documents and encourage others to give it a try hoping for some snowball effect. You just float it on

Re: Never push the Big Red Button

The bigger thing to notice is the *lack* of noise as every server, switch and storage system spins down. --- Keith Stokes On Sep 15, 2021, at 3:50 PM, Stephen Satchell mailto:l...@satchell.net>> wrote: In the data centers I've worked in over the decades, those Big Red Buttons would activat

Re: Never push the Big Red Button

In the data centers I've worked in over the decades, those Big Red Buttons would activate a normally-closed contactor in a breaker panel. When pushed, the contactor would open, and turn off all the circults in said breaker panel. Not affected are lights, convenience outlets, door locks, and ot

Re: IPv6 woes - RFC

ons. 15. sep. 2021 19.37 skrev Owen DeLong via NANOG : > > > > On Sep 15, 2021, at 09:31 , Masataka Ohta < > mo...@necom830.hpcl.titech.ac.jp> wrote: > > > > Baldur Norddahl wrote: > > > But in fact with local number portability, you cannot rely on the > county > > ^^^

Re: Never push the Big Red Button (New York City subway failure)

On Wed, Sep 15, 2021 at 12:32 PM Warren Kumari wrote: > Oooof. I've seen someone at a gas station do something similar -- > I cannot remember if it was putting diesel in their gasoline car, > or gas in their diesel pickup, but I *do* remember the sudden > yelp and look of dismay when they suddenly

Re: Never push the Big Red Button (New York City subway failure)

On Wed, Sep 15, 2021 at 3:20 PM Fred Baker wrote: > > > > On Sep 10, 2021, at 1:33 PM, Warren Kumari wrote: > > > > The utility let them know that they were going to be doing some > maintenance work in the area. No impact expected, but out of an abundance > of caution, they transfer over to gene

Re: Never push the Big Red Button (New York City subway failure)

> On Sep 10, 2021, at 1:33 PM, Warren Kumari wrote: > > The utility let them know that they were going to be doing some maintenance > work in the area. No impact expected, but out of an abundance of caution, > they transfer over to generators. After the utility lets them know that the > mai

Re: Never push the Big Red Button (New York City subway failure)

- Original Message - > From: "Adam Thompson" > Now I'm curious... in all of the DCs and COs I've worked in - to the best of > my > knowledge, I haven't personally tested this! - the EPO button does not switch > to emergency power. It turns off ALL equipment power in the space - no > li

Re: Never push the Big Red Button (New York City subway failure)

> > If the generators are "emergency power", and you need to switch back to > "utility power", obviously the way to do this must be the big red button, > clearly marked as "EMERGENCY POWER OFF", no?! > The owner of my previous company did the same thing to us many years ago because there was a sma

Re: IPv6 woes - RFC

> On Sep 15, 2021, at 09:31 , Masataka Ohta > wrote: > > Baldur Norddahl wrote: > But in fact with local number portability, you cannot rely on the county > code to tell you where to route a telephone call anymore. >>> >>> Not. With geo

Re: Never push the Big Red Button (New York City subway failure)

On Wed, Sep 15, 2021 at 12:23 PM Daniel Seagraves < dseag...@humancapitaldev.com> wrote: > > On Sep 15, 2021, at 10:58 AM, Adam Thompson > wrote: > > Now I'm curious... in all of the DCs and COs I've worked in - to the best > of my knowledge, I haven't personally tested this! - the EPO button doe

Re: Never push the Big Red Button (New York City subway failure)

On Wed, Sep 15, 2021 at 9:21 AM Daniel Seagraves wrote: > It was always my understanding EPO was to be used for > “We have an electrical fire and need to remove the source RFN”, > not “we need to be on the redundant power instead of city power > and don’t want to wait for the automatic transfer”.

Re: IPv6 woes - RFC

On 9/15/21 09:31, Masataka Ohta wrote: Baldur Norddahl wrote: But in fact with local number portability, you cannot rely on the county code to tell you where to route a telephone call anymore. Not. With geographical aggregation, you may route a

Re: Never push the Big Red Button (New York City subway failure)

On 9/15/21 08:58, Adam Thompson wrote: Now I'm curious... in all of the DCs and COs I've worked in - to the best of my knowledge, I haven't personally tested this! - the EPO button does *not*​ switch to emergency power.  It turns off ALL equipment power in the space - no lights, no klaxons, not

Re: IPv6 woes - RFC

Baldur Norddahl wrote: But in fact with local number portability, you cannot rely on the county code to tell you where to route a telephone call anymore. Not. With geographical aggregation, you may route a call *anywhere* in the destination count

Re: IPv6 woes - RFC

On 15.09.21 06:38, Masataka Ohta wrote: Geographical aggregation means carriers in a country is required to have rich and robust connectivity between them within the country... or region. And this is indeed why such an addressing concept was dropped from IPv6.  It just didn't fly economical

Re: Never push the Big Red Button (New York City subway failure)

> On Sep 15, 2021, at 10:58 AM, Adam Thompson wrote: > > Now I'm curious... in all of the DCs and COs I've worked in - to the best of > my knowledge, I haven't personally tested this! - the EPO button does not​ > switch to emergency power. It turns off ALL equipment power in the space - > no

Re: IPv6 woes - RFC

On Wed, 15 Sept 2021 at 06:38, Masataka Ohta < mo...@necom830.hpcl.titech.ac.jp> wrote: > Shane Ronan wrote: > > > But in fact with local number portability, you cannot rely on the county > > code to tell you where to route a telephone call anymore. > > Not. With geographical aggregation, you may

Re: Never push the Big Red Button (New York City subway failure)

Now I'm curious... in all of the DCs and COs I've worked in - to the best of my knowledge, I haven't personally tested this! - the EPO button does not​ switch to emergency power. It turns off ALL equipment power in the space - no lights, no klaxons, nothing. In simpler setups, the EPO is conne