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desiEngineer 12/5/2012 | 4:41:30 PM
re: Cisco Boosts the Core With CRS-3

Steve,


Great article.&nbsp; Just as much as JNPR wants to be an enterprise player, CSCO wants to be a player in the consumer market.&nbsp; Those are radical shifts in corporate strategy - they need a well-thought out and executable strategy, along the lines of IBM transforming itself into a services company.


In other news, in contrast to what CSCO expected, shares of JNPR and ALU go up today while CSCO drops.&nbsp; This is of course short-term thinking from the market, but telling in that the market also went ho-hum.


-desi

Garci 12/5/2012 | 4:41:29 PM
re: Cisco Boosts the Core With CRS-3

Remember its cisco math... so the CRS-1 actually has 16 line-cards slots, so it actually can handle 2.24Tb/s of real bandwidth or 4.48Tb/s in cisco math.


Also, when using 100GigE ports, you waste 40 Gig/slot of bandwitdh..


But yes.. cisco's announcement is way too much hype

BM 12/5/2012 | 4:41:27 PM
re: Cisco Boosts the Core With CRS-3 Yes, agree on Hype, however, no one commented on two areas, how does two areas compares with Juniper and ALU as feature of router. First, the NPS (This seems to help cloud computing) and Power (3 x capacity on line card from existing system with same power). Other I agree that Juniper and Alcatel-Lucent already claimed such as 100G interface. Who would like to implement 72 chassis, which could be system management and cabling nightmare!
Pete Baldwin 12/5/2012 | 4:41:26 PM
re: Cisco Boosts the Core With CRS-3

&gt; Also, when using 100GigE ports, you waste 40 Gig/slot of bandwitdh


With FEC, a 100GE connection will use more like 128 Gbit/s, won't it?&nbsp; So you're only wasting 12 Gig, sometimes...


But yeah, if you deploy the box with nothing but 100GE interfaces, it does look like you'll strand bandwidth.

Pete Baldwin 12/5/2012 | 4:41:26 PM
re: Cisco Boosts the Core With CRS-3

Cisco stock did drop, but it had run up 10% in the two days before the announcement. So in that sense, i guess it worked.


Cisco certainly wants to be a consumer play, and that's going to be a radical shift, as you've said.&nbsp; I think Cisco also wants to become synonymous with The Internet, in consumers' minds.&nbsp; It's like Sun's old catchphrase about being "the dot in dot-com" (which I hated).

Pete Baldwin 12/5/2012 | 4:41:25 PM
re: Cisco Boosts the Core With CRS-3

Ah, you're right.&nbsp; I got ahead of myself (and ny math still couldn't fill the 140G anyway.)

Garci 12/5/2012 | 4:41:25 PM
re: Cisco Boosts the Core With CRS-3

Hi Craig,


FEC is usually added (and removed) by the optical module or the framer and is never counted as part of the payload capacity which is the one seen by the NP/ASIC. If you would use 14x10 ports, then the actual BW on the fiber with FEC will be more than 140G, but if you're using the 100G card, then 40G of processing power and "sellable" BW is wasted per slot.


&nbsp;


my 2 cents,

desiEngineer 12/5/2012 | 4:41:24 PM
re: Cisco Boosts the Core With CRS-3

Craig,


Even I got ahead of myself.&nbsp; I thought the board capacity was 140Gbps.&nbsp; Turns out only the slot is capable of 140Gbps.&nbsp; The actual card can only do 100Gbps.&nbsp; So our collective brain is only going to hurt when they come up with the 140Gbps card upgrade.&nbsp; Sigh!


Can you find out what mix of traffic they used to measure that whopping throughput?&nbsp; Whenever the vendor doesn't mention 64B packets or iMix, then they are usually maxing the packet size - 1500 or 9K.


-desi


PS.&nbsp; FWIW, Cramer is bullish on cisco.&nbsp; A big Booyah from Tasman Dr.!&nbsp; :)

Garci 12/5/2012 | 4:41:20 PM
re: Cisco Boosts the Core With CRS-3

Hi desiEngineer,


If you look in detail at the video posted by cisco, they are doing 140Gig at 9000 byte packets.... its suspicious to say the least.


Is this a 120Gig card pushed to the limit?


&nbsp;


&nbsp;

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