Re: Rack rails on network equipment

On Mon, Sep 27, 2021 at 03:38:15PM -0400, William Allen Simpson wrote: > Anyway, wasn't the Open Compute Project supposed to fix all this? > Why not just require OCP in all RFPs? https://xkcd.com/927/

Vaccine Requirements for NANOG 83

Vaccination Requirements for NANOG 83 A letter to our community from our executive director The global COVID-19 pandemic has brought challenges, and disruptions that most of us thought were unimaginable. The release and availability of the vaccine across our region brings us closer to some degree o

RE: Anyone else expereincing phone line issues from west to east ?

It’s still on going? It’s been more than a week now. I thought these were resolve already. Ransomware are down since few months. I guess that’s why DDoS with ransom are back on the rise. Jean From: NANOG On Behalf Of Mel Beckman Sent: September 27, 2021 5:56 PM To: babydr DBA Jame

Re: Rack rails on network equipment

I think the primary issue for front- vs rear-mounted switches is cooling. As long as you use switches that can pull cooling air from either the front or the back, it’s feasible to mount the TOR switches in the back. For example, I think these are parts I used to order for Cisco Catalyst 3850-48

Re: Anyone else expereincing phone line issues from west to east ?

On 9/27/21 14:49, babydr DBA James W. Laferriere wrote: Hello All ,  Anyone else expereincing phone line issues from west to east ? Just tried calling back east and not even a all lines are busy signal . Bandwidth.com, a major VoIP provider in North America, has been the victim of a

RE: EXTERNAL: Re: Anyone else expereincing phone line issues from west to east ?

Voip.ms attack has cleared up. Now they’re just screwed due to bandwidth.com. I haven’t seen anyone confirm the type of DDOS attack and it’s impossible to know if it’s related to the voip.ms attack. However that’s very likely. Ray Orsini Chief Executive Officer OIT, LLC 305.967.6756 x1009 | 3

RE: EXTERNAL: Anyone else expereincing phone line issues from west to east ?

Yes, Bandwidth has been experiencing DDoS attacks since Sat. status.bandwidth.com and downdetector.com Ray Orsini Chief Executive Officer OIT, LLC 305.967.6756 x1009 | 305.571.6272 r...@oit.co | www.oit.co oit.co/ray How are we doing? We'd love to hear your feedback. https://go.oit.co/revie

Re: Anyone else expereincing phone line issues from west to east ?

Both VoIP.ms and Bandwidth.com are getting serious UDP DDoS attacks. It’s affecting some cell carriers as well that have TDM-to-IP conversions in their PSTN. Check on SlashDot for a nice summary. -mel On Sep 27, 2021, at 2:49 PM, babydr DBA James W. Laferriere mailto:bab

Anyone else expereincing phone line issues from west to east ?

Hello All , Anyone else expereincing phone line issues from west to east ? Just tried calling back east and not even a all lines are busy signal . Tia , JimL -- +-+ | James W. Laferriere

Re: Rack rails on network equipment

Folks, I kind of started to doubt my perception (we don't officially calculate it) of our failure rates until Mel provided this: "That’s about the right failure rate for a population of 1000 switches. Enterprise switches typically have an MTBF of 700,000 hours or so, and 1000 switches operating 87

Re: Powerline Broadband Usecases

On 9/27/21 1:35 PM, JORDI PALET MARTINEZ via NANOG wrote: It may be still interesting in some remote areas if you can bring fiber to the nearest medium to low voltage transformer. The company that designed the chip set (DS2, a Spanish company), was acquired by Marvell (https://www.marvell.

Re: EXTERNAL: Re: VoIP Provider DDoSes

It seems like Cloudflare can do something now too because VoIP.MS is now routed through Cloudflare for their new servers. - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com - Original Message - From: "Ray Orsini" To

Re: Powerline Broadband Usecases

Hi Noah, Take a look at http://www.6power.org/, lots of info. I was the main designer of this project and technical manager. It included a masive deployment pilot with ENDESA (several thousands of customers), one of the main electricity providers in Spain. Then commercial service was

Re: 100GbE beyond 40km

Hi +1 for SmartOptics products. Got M-1601 + optics, did the job very well Pierre Le lun. 27 sept. 2021 à 20:52, Kevin Menzel via NANOG a écrit : > We’ve had DCP-M boxes in service for a few years now on our +40km links, > with their PAM4 100Gb optics. It’s been SO easy. > > If I had the money

Re: Rack rails on network equipment

On 9/25/21 7:52 PM, Joe Greco wrote: On Sat, Sep 25, 2021 at 04:23:38PM -0700, Jay Hennigan wrote: On 9/25/21 16:14, George Herbert wrote: (Crying, thinking about racks and racks and racks of AT&T 56k modems strapped to shelves above PM-2E-30s???) And all of their wall-warts [...] You were

Re: 100GbE beyond 40km

Kevin, What do these types of boxes cost? Never heard of them, but their tech looks neat. On Mon, Sep 27, 2021 at 1:54 PM Kevin Menzel via NANOG wrote: > > We’ve had DCP-M boxes in service for a few years now on our +40km links, with > their PAM4 100Gb optics. It’s been SO easy. > > If I had th

RE: 100GbE beyond 40km

We’ve had DCP-M boxes in service for a few years now on our +40km links, with their PAM4 100Gb optics. It’s been SO easy. If I had the money, we’d throw DCP-M boxes at every link we have. -Kevin Menzel From: NANOG On Behalf Of Joe Freeman Sent: September 24, 2021 17:07 To: Randy Carpenter Cc

Re: Powerline Broadband Usecases

On 9/27/21 10:51, Noah wrote: Any references or existing reports on those past decade use cases you could point me too? https://en.wikipedia.org/wiki/Broadband_over_power_lines for starters. Lots of chatter in the amateur radio community during the times it was deployed regarding severe inte

Re: Rack rails on network equipment

That’s about the right failure rate for a population of 1000 switches. Enterprise switches typically have an MTBF of 700,000 hours or so, and 1000 switches operating 8760 hours (24x7) a year would be 8,760,000 hours. Divided by 12 failures (one a month), yields an MTBF of 730,000 hours. -mel

Re: Powerline Broadband Usecases

Hi Jay On Mon, 27 Sep 2021, 20:17 Jay Hennigan, wrote: > On 9/27/21 10:04, Noah wrote: > > Hi Folks > > > > I would like to find out if there are any known State run broadband > > connectivity services for homes? I mean government providing IP based > > connectivity over grid power? > > If you'r

Re: 100GbE beyond 40km

On Mon Sep 27, 2021 at 12:40:19PM -0400, Randy Carpenter wrote: > Looking at EDFA options... they are all ~1500nm as far as I can tell. Is > there a specific model you are talking about? You're looking for SOA at 1300nm, like https://www.fs.com/uk/products/69350.html but as you can get them bui

Re: Rack rails on network equipment

On Sat, Sep 25, 2021 at 12:48:38PM -0700, Andrey Khomyakov wrote: > We operate over 1000 switches in our data centers, and hardware failures > that require a switch swap are common enough where the speed of swap starts > to matter to some extent. We probably swap a switch or two a month. ... This

Re: Powerline Broadband Usecases

On 9/27/21 10:04, Noah wrote: Hi Folks I would like to find out if there are any known State run broadband connectivity services for homes? I mean government providing IP based connectivity over grid power? If you're referring to broadband over power lines or BPL, that experiment TTBOMK die

Re: 100GbE beyond 40km

There is a cryo folder on c:\ which contains all the tables and so forth I guess we coukd zip that up, I very much doubt I can re-add the machine to xp but i will give it a shot no harm if its only for a rdp session. cryo as in cryochamber Sent via BT Email App From: Randy Carpenter Sent: 27 S

Powerline Broadband Usecases

Hi Folks I would like to find out if there are any known State run broadband connectivity services for homes? I mean government providing IP based connectivity over grid power? Noah

Re: 100GbE beyond 40km

Looking at EDFA options... they are all ~1500nm as far as I can tell. Is there a specific model you are talking about? thanks, -Randy - On Sep 27, 2021, at 10:25 AM, Dan Murphy wrote: >> Are you saying we could use normal QSFP28 LR4 or ER4 modules with an >> amplifier > > in between?

Re: 100GbE beyond 40km

> Are you saying we could use normal QSFP28 LR4 or ER4 modules with an amplifier in between? Yes, that is the idea from 30,000 ft. Fun fact, the ER4 optics you mention are amplified inside the pluggable in a very similar manner to how these EDFA systems work. Basically: QSFP28 100G ER <-> EDFA Amp

Re: Rack rails on network equipment

* Andrey Khomyakov > Interesting tidbit is that we actually used to manufacture custom rails for > our Juniper EX4500 switches so the switch can be actually inserted from the > back of the rack (you know, where most of your server ports are...) and not > be blocked by the zero-U PDUs and all th