Topic 'Re: Cisco CRS with 100Gb line card' in forum 'Photos of Broadband gear' - dslreports.com

Re: Cisco CRS with 100Gb line card

Wed, 31 Oct 2012 19:55:03 EDT

sk1939 posted : The one's I saw were 1/2 rack, so they've either shrunk somewhat, or have a lower capacity. Still, the amount of speed you have at the carrier level is amazing, I wonder what the link utilization is.

Re: Cisco CRS with 100Gb line card

Wed, 31 Oct 2012 19:07:20 EDT

TomS_ posted : The ones Ive wroked with are the PSS-32 chassis, which is 19" wide an 13 or so RU (can just fit 3 of them in a rack). Ive worked more with muxponders than their transponders, and you can fit 5 of them in that chassis, so 50 x 10g = 500g line side per chassis x 3 = 1.5t per rack. Since the chassis is only about 300mm deep you can probably fit them front and back too.

Not sure if theres anything else more dense than that. :-)

Re: Cisco CRS with 100Gb line card

Wed, 31 Oct 2012 18:59:34 EDT

sk1939 posted :

said by TomS_:

Alcatel-Lucent.

They arent "optics" as such, more trans/muxponders.

I've seen some of the equipment (carrier hotels), never been able to lay hands on it though (not my specialty/repsonsibility). Are the mux's still on the large side, or have they managed to shrink it a bit?

Re: Cisco CRS with 100Gb line card

Wed, 31 Oct 2012 17:07:19 EDT

TomS_ posted : Alcatel-Lucent.

They arent "optics" as such, more trans/muxponders.

Re: Cisco CRS with 100Gb line card

Wed, 31 Oct 2012 16:39:13 EDT

cramer posted : I wasn't aware of anyone doing single lambda 100G. Who's the vendor/manufacturer for those optics?

Re: Cisco CRS with 100Gb line card

Wed, 31 Oct 2012 16:18:56 EDT

TomS_ posted :

said by Smokeshow:

I was under the impression that 100G used a total of 20 fibers for 10x 10G channels

There are a few ways to provide 100G, one as you say being 10x10G channels, either physical (using a ribbon fibre) or logical using multiple wavelengths over a single pair. Another is 4x25G in similar configurations.

It is also possible to 100G as a single channel, and Ive been involved in the deployment of some long haul transmission kit that is single wavelength 100G. On a DWDM line system with 80 channels, were talking 8tbit/sec. Thats some seriously sexy stuff. :-)

Re: Cisco CRS with 100Gb line card

Tue, 30 Oct 2012 00:02:05 EDT

AMD Phreak posted : An some of the ones I have been around the red reset button cycles the unit. As in cuts the loads and restarts the ups.

Re: Cisco CRS with 100Gb line card

Mon, 29 Oct 2012 20:11:30 EDT

TheMG posted :

said by AMD Phreak:

I'll give you a dollar to press the red "RES" button on the ups. :D

Not much would happen, all pressing the reset button would do is clear all the recorded values/stats.

Hint: that device in the picture simply displays and records measurements for power consumption and power quality. Has nothing to do with any UPS.

Link: »www.eaton.com/Eaton/ProductsServ···ndex.htm

Re: Cisco CRS with 100Gb line card

Mon, 29 Oct 2012 16:48:28 EDT

cramer posted : Yes. And I remember a time when an intern hit the orange, end-of-the-world button in a TX data center. (not only does it dump the halon, but it blows the "fusable links" to the room -- one inch bars of copper.) Our's were MUCH harder to hit -- the covers were held on by industrial velcro.

(The only other links I've seen "blow" were due to a dropped screw driver.)

Re: Cisco CRS with 100Gb line card

Mon, 29 Oct 2012 16:27:16 EDT

sk1939 posted :

said by cramer:

I'll do one better... see that big shinny read button behind the plastic next to the door... :-)

I'll match his contribution.

Anybody remember when Haylon systems were predominant and you had to carry around a tank of air in case of emergency?

Re: Cisco CRS with 100Gb line card

Mon, 29 Oct 2012 14:09:37 EDT

cramer posted : I'll do one better... see that big shinny read button behind the plastic next to the door... :-)

Re: Cisco CRS with 100Gb line card

Mon, 29 Oct 2012 12:41:27 EDT

AMD Phreak posted : I'll give you a dollar to press the red "RES" button on the ups. :D

Re: Cisco CRS with 100Gb line card

Mon, 29 Oct 2012 12:12:59 EDT

cablegeek01 posted : lol, I hadn't noticed till now. Pretty funny.

Re: Cisco CRS with 100Gb line card

Mon, 29 Oct 2012 12:11:33 EDT

pb2k posted :

said by cablegeek01:

said by OHSrob:

said by cablegeek01:

I finally got around to upgrading my old linksys WRT54G ;-)

Wow, I am assuming this is an internet service provider since I don't think much else would need that kind of bandwidth.

How many people run through that thing ?.

That thing has to be good for at least 180,000+ residential subscribers.

Lets see....in its current configuration, it can support 140Gbps per slot, and there's 16 slots per chassis.
If we keep it simple and say that we'll use 50% for input and 50% for output, that's 2.24Tbps/2 =1.12Tbps of capacity.
If we follow the general rule that only 10% of the network users will be using the system at any given time, and we want to offer 50Mbps to each user....that's around 220,000 users per CSR3. If we wanted to get crazy and offer 100% guaranteed bandwidth to every user, we could support 22,400 users per chassis at 50Mbps to each user :-D

If you were offering 10Mbps service to each subscriber, you could see 1.1 million users per chassis, fully loaded.

Am I the only one that found irony in quoting the op only mentions a wrt54g?

Re: Cisco CRS with 100Gb line card

Mon, 29 Oct 2012 11:29:42 EDT

cablegeek01 posted :

said by OHSrob:

said by cablegeek01:

I finally got around to upgrading my old linksys WRT54G ;-)

Re: Cisco CRS with 100Gb line card

Mon, 29 Oct 2012 02:38:57 EDT

cramer posted : That's still true for "SR" (multimode fiber), but who's going to do 100G on MM???

(It's more likely to use the SR optic to make a single 100G interface 10x10G interfaces.)

Re: Cisco CRS with 100Gb line card

Mon, 29 Oct 2012 01:49:34 EDT

sk1939 posted :

said by Smokeshow:

Correct me if I am wrong, but those look like SC connectors on that fiber... Does that thing really only require 2 fibers to push 100G? I was under the impression that 100G used a total of 20 fibers for 10x 10G channels and typically used 2 ribbons of fiber with MTP connectors.

Back when 100G came out that was true, but it hasn't been the case with the advent of WDM and DWDM technology (pioneered I believe, with 40G ethernet).

Re: Cisco CRS with 100Gb line card

Mon, 29 Oct 2012 00:47:32 EDT

cramer posted : DWDM, baby! Cisco 100GBASE CFP Modules Data Sheet

Re: Cisco CRS with 100Gb line card

Sun, 28 Oct 2012 23:56:12 EDT

Smokeshow posted : Correct me if I am wrong, but those look like SC connectors on that fiber... Does that thing really only require 2 fibers to push 100G? I was under the impression that 100G used a total of 20 fibers for 10x 10G channels and typically used 2 ribbons of fiber with MTP connectors.

I've never seen anything of this magnitude though. Fastest I've worked with is 10G.

Re: Cisco CRS with 100Gb line card

Sun, 28 Oct 2012 23:20:51 EDT

cmslick3 posted : Those tight bends at the fiber connectors can sometimes be a problem. However I would love to get ahold of a small portion of that BW.

Re: Cisco CRS with 100Gb line card

Sun, 28 Oct 2012 14:35:22 EDT

pb2k posted :

said by OHSrob:

You would be surprised how little bandwidth most of people use.

Just think though... people might start wanting to stream erotic novels, and suddenly that 1kbit/s isn't going to be enough!

Re: Cisco CRS with 100Gb line card

Sun, 28 Oct 2012 14:25:38 EDT

OHSrob posted :

said by pb2k:

said by OHSrob:

said by cablegeek01:

I finally got around to upgrading my old linksys WRT54G ;-)

Toss in a bit of over-subscription, and he should be able to offer 512bit/s and 1kb/s service! That should easily be enough to put the last of the morse code operators out of work (phfft, 55 bit/s is the best they can muster).

You would be surprised how little bandwidth most of people use.

edit: that number was assuming a 5 megabit plan and I may have accidentally moved a decimal place.

Re: Cisco CRS with 100Gb line card

Sun, 28 Oct 2012 14:13:40 EDT

pb2k posted :

said by OHSrob:

said by cablegeek01:

I finally got around to upgrading my old linksys WRT54G ;-)

Re: Cisco CRS with 100Gb line card

Sun, 28 Oct 2012 13:05:39 EDT

OHSrob posted :

said by cablegeek01:

I finally got around to upgrading my old linksys WRT54G ;-)

Re: Cisco CRS with 100Gb line card

Sun, 28 Oct 2012 12:37:16 EDT

LazMan posted : Turbines are awesome, but you are absolutely right about service and parts... As well as being tied to a specific vendor - there's 100's of companies that can service your average generator - turbines mean dealing with the company that built it almost exclusively....

Re: Cisco CRS with 100Gb line card

Sun, 28 Oct 2012 02:59:54 EDT

HELLFIRE posted : Couldn't possibly convince you to get a private 10/100/1000 RJ45 connection into that 100G line, could I cablegeek01? :D

Regards

Re: Cisco CRS with 100Gb line card

Sat, 27 Oct 2012 23:55:05 EDT

battleop posted : Turbines are certainly the coolest sounding getsets, period. We looked at some but decided against it because there was concern about local service and parts.
--
I do not, have not, and will not work for AT&T/Comcast/Verizon/Charter or similar sized company.

Re: Cisco CRS with 100Gb line card

Fri, 26 Oct 2012 10:38:56 EDT

cablegeek01 posted : Thanks!

Re: Cisco CRS with 100Gb line card

Fri, 26 Oct 2012 10:18:20 EDT

LazMan posted : As a heads up - you'll have to update in steps; you can't go from 1.95 to 2.05 in one jump...

There are some pretty big upgrades in 2.04, it's the load I run on most of my sites... But I do a lot of snmp and remote access - in a lab, with physical access, it may not be as big a deal.

And yes, there's a high effiency 4kw module, plug compatible with the 3.6...

Re: Cisco CRS with 100Gb line card

Fri, 26 Oct 2012 10:05:49 EDT

cablegeek01 posted : That's good to know! Our DC plant guy is rather old school and shies away from the computer aspect of things. I'll get a hold of Argus/Alpha and get the new load. It's running the 3.6KW rectifier modules, and we're pretty close to capacity (had to move some gear off of it earlier this month). I didn't know they had a 4KW option; time to read up!

Re: Cisco CRS with 100Gb line card

Fri, 26 Oct 2012 09:52:41 EDT

LazMan posted :

said by TheMG:

The building I work in (which is not a CO, but does house a lot of rather important equipment), has two 1.5MW CAT diesel gensets.

They are MASSIVE gensets and very impressive to see/hear them start up.

Total load is just under 1MW, but there are two gensets for redundancy in case one fails to start.

Lightweight... ;)

Largest complex I maintain regularly has 6 1.5 MW and 2 2 MW generators, and I was called in on an emergency to another building of ours with 3 5MW turbines... They are impressive as it gets at startup... ;)

Re: Cisco CRS with 100Gb line card

Fri, 26 Oct 2012 09:50:02 EDT

cablegeek01 posted : That's correct. In the production setups, there is a redundant everything (these boxes have redundant processors and power supplies, but on the core network there are redundant routers in case of a chassis failure), including power supplies and cabling into and out of the buildings, HVAC, you name it...

Re: Cisco CRS with 100Gb line card

Fri, 26 Oct 2012 09:48:01 EDT

LazMan posted :

said by cablegeek01:

How do you power it? Generously (albeit this power draw is for several CRS, and a few ASR9Ks as well)

You're about 4 updates behind on your Cordex... Current software is 2.05... ;)

It's a nice product - 3.6 kw rectifiers, or the new 4 kw ones?

Re: Cisco CRS with 100Gb line card

Thu, 25 Oct 2012 21:37:27 EDT

TheMG posted :

said by cablegeek01:

No kidding! This is a lab, but it's simulating routing for a major metropolitan area/aggregation point. If it was in production, you'd take down a few hundred thousand customers :-)

I would assume that, in production, there would be redundancy, correct?

Although sometimes I assume too much. In my field of work, there are redundancies for nearly everything. Heck, some things even have redundancies for the redundancies. It does get pretty redundant.

said by cablegeek01:

I'd love to see the genset(s) backing up that CO.

Re: Cisco CRS with 100Gb line card

Thu, 25 Oct 2012 20:31:08 EDT

Oxygen posted : This is awesome. I was curious so I pulled some pricing...

The Cisco 1X100GBE card is $110,000 and the 100GBE CFP LR4 module is $56,000

Re: Cisco CRS with 100Gb line card

Thu, 25 Oct 2012 17:08:41 EDT

cramer posted : »goo.gl/maps/LMT5h (bti -> itc^deltacom -> Earthlink)

Re: Cisco CRS with 100Gb line card

Thu, 25 Oct 2012 16:59:57 EDT

cablegeek01 posted : Gotta love it! that's.....around 570KW of power if the legs are balanced (as they should be)! I'd love to see the genset(s) backing up that CO. It's been a while since I've been in any telco buildings.

Re: Cisco CRS with 100Gb line card

Thu, 25 Oct 2012 16:56:23 EDT

cramer posted : Transfer switch at a CO... 395A... on a single phase of the 480V-3ph feed into the building.

Re: Cisco CRS with 100Gb line card

Thu, 25 Oct 2012 16:36:03 EDT

DarkLogix posted : /drool

Re: Cisco CRS with 100Gb line card

Thu, 25 Oct 2012 16:12:16 EDT

cablegeek01 posted :

said by sk1939:

Snippy snip snip and something major goes down. Probably cost a pretty penny.

No kidding! This is a lab, but it's simulating routing for a major metropolitan area/aggregation point. If it was in production, you'd take down a few hundred thousand customers :-)

Re: Cisco CRS with 100Gb line card

Thu, 25 Oct 2012 16:10:30 EDT

cablegeek01 posted : How do you power it? Generously (albeit this power draw is for several CRS, and a few ASR9Ks as well)

25KW? sure, why not.
A fair amount of 4GA cabling.

Re: Cisco CRS with 100Gb line card

Thu, 25 Oct 2012 16:05:39 EDT

sk1939 posted : Snippy snip snip and something major goes down. Probably cost a pretty penny.

Re: Cisco CRS with 100Gb line card

Thu, 25 Oct 2012 15:52:45 EDT

cablegeek01 posted : Sorry about that! They uploaded sideways, so I deleted and re-uploaded to avoid any serious neck strain.

Re: Cisco CRS with 100Gb line card

Thu, 25 Oct 2012 15:45:34 EDT

pb2k posted : It would help if you actually posted something.
Thanks for nothing, now i'm going to have to get my network p0rn fix somewhere else :(

edit: ah, thats better!

Cisco CRS with 100Gb line card

Thu, 25 Oct 2012 15:41:46 EDT

cablegeek01 posted : I finally got around to upgrading my old linksys WRT54G ;-)

CRS 3
100Gbps!