The service provider owns the router.
The service provider owns the router.
This product does not even remotely compete with anything Nokia makes, which is specialized network hardware, software and solutions.
This is generic x86 server hardware with a clever form factor, not IP/MPLS, DWDM, OTN, LTE, GPON et cetera with very expensive specialized ASICs and expensive specialized software.
It's also about 10% of a Sonet frame. Fortunately most telecom clocks don't blindly repeat GPS time, but instead use it to gradually steer their internal rubidium and quartz clocks so there wouldn't be an abrupt change in the output.
As someone who has actually deployed some of those DC powered 3750s, I assure you it is not designed for use in DC powered datacenters.
All telephone central offices are -48 volt DC powered with strings of batteries connected basically directly to the load in parallel with the rectifier. Many radio and wireless facilities run at +24 volt DC so you'll often see carrier grade equipment that will run from ~20v to ~70v DC safely.
A Datacenter environment is primarily 19" 4 post locking cabinets with ~200+ volt power and raised floors and a CO is 2 post 23" open racks with -48 volt DC and concrete or linoleum floors. That's in the US anyway, they're 21" racks in Europe and the European standard calls for front-access only. In the US there is typically access to the front and rear of each row of racks.
There have been some proposals for DC powered datacenters, but I'm not aware of any large examples. In order to be as efficient as AC it would need to be much higher voltage than the typical -48 telco setup. The telco power scheme isn't designed for efficiency, it's built for rock solid reliability and for a non-electrician to work on during the day without a serious risk of fire/death.
There's no control for this study. You might as well logically conclude that ultrasounds cause thyroid cancer based on this.
It doesn't seem to have worked for logging you into Slashdot, though.
Maybe not, but what is? I've got it and I'd definitely recommend it over the cartel.
The lesson is if you want an Arab Spring to work, be as far away from the Arab Peninsula as possible.
I think that's the point. This guy knows the fiber paths and goes around cutting both sides of the ring. Even if all traffic is protected it costs tens of thousands of dollars to do emergency repair work on a fiber cable.
Also, diversity is typically only used from office to office. From the office out to the environmental cabinets and pedestals and so forth servicing individual customers there's typically a single fiber path.
self-entitled little bitch throwing a temper tantrum
someone who has not actually accomplished anything to improve the lives of anyone
This is an antiquated and stupid convention that really only applies to transit carriers. Netflix pays their wholesale ISPs for transit. Retail ISPs pay their wholesale ISPs for transit. Peering allows them both to save that money. The ratio doesn't mean anything because every single bit originates from a paying customer of the Retail ISP. The only Retail ISPs that don't want to peer with Netflix are the ones who also sell video content.
No, it really isn't. This is about Retail ISPs who also sell video (cable companies) wanting to limit access to Netflix for their customers without doing something obviously like rate limiting/filterering at the gateway router. The 'people in the middle' like Level3 and Cogent are bypassed completely when Netflix peers with an ISP, which saves both Netflix and the ISP money. Hint: I work for an ISP, we don't sell video, we peer with Netflix everywhere we are able as well as install their caching appliances in our offices to reduce our transit and backhaul costs.
If I can go 1000 miles, Dallas to Chicago being a real world example on my network, then I can go 1000 kilometers and then some can't I?
This equipment is being deployed by carriers and ISPs, and generally carriers and ISPs have been complicit in the surveillance with the "Five Eyes" anyway, so this isn't a big purchasing concern when buying from Cisco or Juniper.
I have a very small mind and must live with it. -- E. Dijkstra