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Showing posts with label CRS. Show all posts
Showing posts with label CRS. Show all posts

Sunday, August 4, 2013

Cisco Preps Its Next Core Router: The 'CTR'



The next Cisco Systems Inc. is apparently named the "CTR" and is aiming for densities of at least 1Tbit/s per slot, according to a Cisco document obtained by Light Reading.

Plenty of details are left out, such as when the CTR might ship. But the document makes it clear that the platform is meant to be a step beyond the CRS-3 core router:


  • The router would support 1Tbit/s per slot in the form of a card with ten 100Gbit/s ports. Whether this card would be available right away isn't clear.That would still fall short of the 12 100Gbit/s ports per card that Arista announced for its switches, but, depending on when the card arrives, it could be the best density for a core router. As a point of comparison, the Alcatel-Lucent 7950 Extensible Routing System got announced last year with a theoretical per-slot capacity of 1.6Tbit/s (800Gbit/s if you're not double-counting the traffic).
  • It would double as an MPLS label-switched router, to provide the kind of Layer 2 "lean core" (Cisco's phrase) that some carriers are talking about.
  • It would be an ASIC-driven design, as usual. The network processor involved would carry 336 packet-processing cores on-chip and would handle both Ethernet processing and OTN framing.
  • Cisco declined to comment on any of this, but sources close to the company confirmed Thursday that that a new core-routing platform is planned for launch later this year.


Such a system would give Cisco an answer to the Leading-Lights-award-winning AlcaLu 7950, which Cisco initially disparaged as not being a core core router.

Separately, the document appears to confirm plans to produce 10Gbit/s and 40Gbit/s versions of the CPAK interface -- that is, modules with ten 10Gbit/s ports or two 40Gbit/s ports.

CPAK is Cisco's home-grown optical interface module, built with silicon photonics and providing power and density levels compatible with the CFP2 standard.


Thursday, January 10, 2013

New CRS Elastic Core Solution - Programmability to 100G


Software Defined Networking (SDN) is an approach to optimizing networks in many different ways. Networking giant Cisco is now using the SDN approach to deliver an enhanced carrier grade offering on its flagship CRS-3 core routing platform.

The new CRS Elastic Core Solution, delivers better 100 Gbps performance than prior solutions from Cisco with enhanced programmability. The technology behind the programmability is known as nLight and it is closely tied to Cisco's Open Network Environment (ONE), SDN strategythat was announced in June.

"As part of Cisco Open Network Environment (ONE) we discussed the importance of having bi-directional multi-layer programmability across various layers," Sanjeev Mervana, senior director, Products and Solutions, Service Provider Group, told InternetNews. "nLight leverages the same framework to offer this essential multi-layer programmability between the IP and optical layer."

As an example, Mervana explained if a financial customer is seeking a very low latency path to connect to an alternate site, nLight provides programmability through its ability to extract data between network layers to identify low latency optimal paths. Based on this information, nLight can compute and setup these paths.

Without nLight, there isn't as much visibility into both the optical and IP layers. As such, Mervana noted that service providers end up over provisioning both IP and optical layers and allocate stranded unnecessary bandwidth to ensure availability.

Mervana added that the visibility that nLight provides helps to improves service providers’ ability to obtain real-time topology changes occurring in their network.

"This, in turn, provides better capacity planning, enhanced protection and restoration schemes, improved and reduced time in terms of provisioning capabilities – all the attributes needed to improve time to market and customer service experiences," Mevana said.

Coherent 100G

Another component of Cisco's CRS Elastic Core Solution is an improved coherent optical technology.
"Coherent technology has been in around for some time, but what we are announcing now is the latest generation ( 3rd ) of coherent technology, which Cisco acquired through our 2010 acquisition of Core Optics, a designer of digital signal processing (DSP) solutions for high-speed optical networking applications," Mervana said.

Other vendors including Cienahave also been working on Coherent Optical 100G solutions in recent years.
Mervana noted that the Cisco 100G solution operates at distances up to 3,000 km without the need for signal regeneration.

"We first introduced this technology back in May with our ROADMs, and now we are integrating it into our routing platforms," Mervana said. "These innovations, along with nLight, provide a total elastic core solution for network operators to have lower Total Cost of Ownership (TCO) solutions for their service offerings. "

Hardware and Software Required

The road to Cisco's Elastic Elastic Core Solution includes both hardware and software updates for Cisco's CRS-3 customers. The CRS-3was first announced in March of 2010 as the successor to Cisco's CRS-1. Merana explained that Cisco's 100G IPoDWDM customers will need to buy a new hardware module supporting the 100G optics. The nLight component will be released as part of the IOS XR software release.

Next Stop 400G?

While Cisco is now improving its 100G solution, the CRS-3 as a platform is capable of handling up to 400 Gbps per slot. The move towards 400 Gbps platform is one that rivals including Alcatel-Lucent and Ciena are building towards.
"Cisco usually does not speculate on roadmap items, however innovations in 100 Gbps coherent IPoDWDM Cisco nLight technology are a testament to Cisco's commitment to leading the industry in both Internet Protocol and optical technologies," Mervana said. " Additionally, Cisco takes leading role in various standard bodies, including IEEE for 400 Gigabit Ethernet."
 

Sunday, September 2, 2012

Cisco Guide to Harden Cisco IOS XR Devices

Tuesday, October 25, 2011

CRS - Interface Naming

Interface Naming

r/s/m/p naming
rack/slot/module/port

show platform

RP/0/RP0/CPU0:router# show platform

Node                 Type                  PLIM                           State                  Config State
-------------------------------------------------------------------------------------------------------
0/0/SP                MSC(SP)         N/A                             IOS-XR RUN      PWR,NSHUT,MON
0/0/CPU0           MSC             16OC48-POS/DPT        IOS-XR RUN      PWR,NSHUT,MON
0/2/SP                MSC(SP)         N/A                             IOS-XR RUN      PWR,NSHUT,MON
0/2/CPU0           MSC             16OC48-POS/DPT        IOS-XR RUN      PWR,NSHUT,MON
0/RP0/CPU0      RP(Standby)    N/A                              IOS-XR RUN      PWR,NSHUT,MON
0/RP1/CPU0      RP(Active)       N/A                              IOS-XR RUN      PWR,NSHUT,MON
0/SM0/SP           FC/S(SP)         N/A                              IOS-XR RUN      PWR,NSHUT,MON

Note: FC=Fan Card
SM=Switch Module
AM=Alarm Module

Node0/0/SP - Rack0, Slot0, Module Service Processor
0/0/CPU0 - Rack0, Slot0, CPU0 - Interfaces with the PLIM 16OC48-POS/DPT
0/RP0/CPU0  - Rack0, Route Processor, CPU0

Type
Type of Card

PLIM
Idenifies Physical Layer Interface Module

State
shows the state of the node

Config State
PWR- Power
SHUT-Shut
MON-Monitor
NPWR- No Power
NSHUT-No Shut
UMON- Un Monitor


RP/0/RP0/CPU0:CRS-19(config)#show ipv4 interface brief

Interface                      IP-Address      Status                Protocol
POS0/1/0/0                     10.0.0.1        UP                    UP
TenGigE0/3/0/0                 unassigned      Shutdown              Down
TenGigE0/3/0/2                 unassigned      Shutdown              Down
MgmtEth0/RP0/CPU0/0            unassigned      Shutdown              Dow

Loopacks do not follow the r/s/m/p naming

POS0/1/0/0  - Rack0, Slot1, Module0, port 0
MgmtEth0/RP0/CPU0/0 - RP0, CPU0, Port0
TenGigE0/3/0/2 - Rack0, Slot3, Module0, Port2

Tuesday, August 2, 2011

Has Cisco CRS-3 caused network outages at both Comcast and AT&T?

By Brad Reese

The Cisco CRS-3 has caused network outages at both Comcast and AT&T while Cisco continues to deny any problems with the CRS-3, blaming carrier configs for the issue.

Meanwhile, Comcast and AT&T have formally petitioned both Cisco and Broadcom on the issue...
And so what's exactly the issue?

Well, its called bit flipping.

The bit flip is an interesting phenomenon because the Cisco CRS-3 is rumored to have used Broadcom 3rd party silicon (view Cisco Systems' Fear of a Broadcom Planet), which did not use ECC protected memory subsystems and did not use low-alpha particle lead. Normal lead occasionally kicks out an alpha particle and with transistor densities being what they are today it can cause a bit to "stick" in a memory subsystem. This then causes the memory to corrupt and then pretty much snowballs into at least a minimum of having the ASIC being reset, and then possibly having an entire system reset.
This happened most famously with the Cisco 4500 and 6500 and the Toshiba SRAMs back in the 2002-2004 time frame, causing tens of millions of dollars of hardware recall.

Bottom line: There's no real "field fix" in most cases and a line card swap out is called for.

I find this interesting because Cisco CEO John Chambers stated during Cisco's Q1'FY11 earnings conference call:

"Just as an update, the customer acceptance from the pilot perspective on the CRS-3 is off to a great start. In Q1, we shipped our first CRS-3 system. We received $51 million in orders from 30 customers. However, we expect there will probably be several more quarter before we see rapid increase in these accounts from dual high-end routers as they test out all the new systems of this magnitude before they begin volume commitments."

Finally in my opinion, the above Cisco CRS-3 bit flipping issue should be brought to the attention of Cisco's customers.

Saturday, April 23, 2011

Speed Limit 100Gbps – Cisco CRS-3 and Altibox Powers World’s Fastest Computer Party

By Stephen Liu

What do you get when you combine 5000+ gamers, a 100GE uplink to the Internet, a lot of espresso machines, and no parents to tell them to shut down the noise or go to bed early? A whole lot of fun!

The Gathering (“TG”), is Norway’s largest computer party and kicked off today for its 20th time since 1992. It’s grown so large now that it is held at one of the venues used for the 1994 Winter Olympics. TG continues to attract growing interest to the gaming, computer, and entertainment event, both nationally and internationally and is organized by the non-profit organization KANDU (Kreativ Aktiv Norsk DataUngdom/Creative Active Norwegian Computer Youth). This year it’s powered at record speed by a Cisco CRS-3 router connected to The Gathering’s Internet provider, Altibox at 100 Gbps, along with technical support provided by several of Cisco Norway’s engineers, Merete Asak and Bjornar Forthun.

This isn’t the first time the CRS has played a key role in a Scandinavian gaming conference. The Swedes used our 40G technology in 2007 at their Dreamhack event as we discussed (and video here), but now this has raised the performance bar.

Although they probably won’t be playing Cisco’s award winning myPlanNet game, they’ll still enjoy others such as StarCraft, Quake, and Heroes of Newerth. Participants also participate in creative competitions in programming, graphics, and music.

As one would expect to befit a computer party, the engineers proudly posted their network implementation on the Internet and even gave us a great testimonial:


This year our sponsors really have stepped up to the plate by delivering a 100 Gigabit/s internet access with a kickass network to make sure we can enjoy the amazing capacity.

As part of our SP marketing team I’ve got to say I really like the phrase “Cisco - Builds Kickass Networks” but I don’t think it will get past our branding or legal departments, even if the CRS-3 is the only vendor currently to support a fully standards-compliant, single-flow 100GE link. If you are in Norway this week and you are really in the mood to play “Call of Duty” on a very low ping network stop by The Gathering for some CRS-3 enabled fast gaming action!

Monday, April 18, 2011

Happy First Birthday, CRS-3!

Can you believe it? It’s been one year since we launched the Cisco CRS-3 Carrier Routing System! I’m very pleased that the CRS-3 adoption rate is four times faster than the original CRS-1 series. In just a year, 80 service provider customers in more than 30 countries are deploying the platform – a true testament to the scalability and sustainability of the architecture.

Further, service provider customers across the world like AT&T, Comcast, Turkcell in the Middle East, Main One in West Africa, and Hong Kong Broadband in East Asia, among others, are unanimous about the CRS platform increasing the relevance of the network by enabling fixed-mobile convergence, value-added services and consumer broadband. We appreciate the vision and innovation demonstrated by our customers as they incorporate the CRS-3 platform into their next-generation networks.

The strong market response to the CRS-3 validates our belief that this platform is the foundation for the next-generation Internet.   Unlike competitive offerings that require refreshers, upgrades or even full replacements within just a few years, the Cisco CRS platform is designed to seamlessly accommodate the extraordinary growth of video traffic, mobile devices and new online services through this decade and beyond, delivering unprecedented investment protection.

While others in the industry make promises of 100G, we are shipping more capacity than all of our competition combined.  The CRS-3 and IOS XR engineering teams are bringing to market truly world class innovations in all aspects of design, development and delivery. I am very proud of the CRS development team.

Friday, April 15, 2011

Cisco Grows CRS-3

Just over a year ago, Cisco announced its new flagship CRS-3 routing platform. The CRS-3 offers the promise of up to 322 terabits per second of capacity, a dramatic increase over the 92 terabits provided by its predecessor the CRS-1.
 
So how has the CRS-3 done in the market over the last year?
 
Stephen Liu, senior manager of service provider marketing for routing and switching solutions at Cisco told InternetNews.com, that there are 80 different customers using the CRS-3.

"That has nothing to do with units shipped, that's 80 different customers, some of whom have multiple units of CRS-3," Liu said. "This is building on the CRS platform penetration of 450 customers in 80 countries around the world.
 
Liu added that the total capacity of the CRS-3's now in deployment adds up to 7.5 petabits per second. That said, Liu was not able to disclose how many actual units Cisco has sold or shipped, but noted that the uptake of the CRS-3 has been four times faster than it was for the CRS-1. The company has also said that both AT&T and Comcast are CRS-3 customers.
 
The CRS-1 was announced back in 2004 and at the time, it wasn't entirely clear how the market might adopt the new core routing platform. According to Liu, the CRS-3 is co-residing alongside with CRS-1 in some locations.
 
According to Cisco, the CRS-3 is easy to deploy, considering it builds on the proven Cisco CRS-1 series. Thus it does not have to undergo all of the customer testing and qualification cycles or compliance procedures required for a completely new platform.
 
Since the CRS-3 was first announced, rivals including Juniper Networks have also updated their core routing systems: Juniper's T4000 was announced at the end of 2010.
 
One of the key factors driving the adoption of the CRS-3 is the new 100 GbE (Gigabit Ethernet) standard.
"The Cisco CRS-3 is the flagship platform for 100GbE for Cisco," Liu said. "It supports a standards-compliant 100GbE interface that’s fully interoperable, as opposed to competitive offerings that are only standards-based and not fully compliant hampering interoperability."

Friday, April 8, 2011

Juniper: Cisco CRS-3 Performance 'Unrealistic in Practice'


Cisco (NSDQ:CSCO) is positioning its new CRS-3 Carrier Routing System in the highest end of the service provider router market, but said Tuesday that as bandwidth and other networking concerns increase, the opportunities for more traditional solution providers to profit with the system will grow.
Meanwhile, however, its closest competitor in the space moved quickly to dismiss the CRS-3's market viability.
 
"We agree with Cisco that the Internet and networks themselves require fundamental change, but Juniper takes a different, open-standards approach that better benefits service provider economics and end user experiences. That's why we've been delivering 100GB-capable systems since 2007," said Mike Marcellin, Juniper's vice president of marketing, infrastructure products group and Junos Ready Software, in a statement e-mailed to ChannelWeb.
 
Announced Tuesday, Cisco's CRS-3 family offers what Cisco claims is 12 times the traffic capacity as the nearest competing system, boasting 322 Terabits-per-second performance. The "12-times-the-nearest-competitor" statement, thought to be directed at Juniper, is misleading, Marcellin suggested.
 
"The claim of 12 times the traffic capacity of the nearest competing system is based on a theoretical maximum of 72 interconnected CRS-3 chassis in order to achieve the 322Tbps total capacity -- this will likely never be deployed in practice due to space, power, and manageability realities," he said. "With its new T-Series chipset announced in early February, Juniper will deliver a four Terabit system in a half rack configuration while the CRS-3 requires a full rack to deliver four Terabits.' That's a real space and power savings for every unit deployed."
 
Cisco intends the CRS-3 as its new flagship carrier router. It will replace Cisco's six-year old CRS-1 carrier router family, but users need only new line cards and fabric to upgrade, and can rely on their existing CRS-1 chassis, route processors and power systems, according to the company.
 
"They [service providers] want to make sure they don't need to go through a rip-and-replace model, as some of our competitors do," said Doug Webster, Cisco's senior director of service provider marketing, in an interview. "We want to leverage the strong installed base of CRS-1. We have some 5,000 CRS-1 units deployed already, and when we went about looking at the architecture, we opted to preserve and leverage the investments. Op-ex is another huge concern for our providers, and so it's also 60 percent more energy efficient than competitive solutions."
 
Pricing for CRS-3 packages begins at $90,000. The routers are in field trials at present, and Cisco didn't confirm when they would be generally available.
 
The high-end routing products like CRS-1 and CRS-3 represent only about 4 percent of Cisco's overall revenue, as pointed out in research notes Tuesday by UBS' Nikos Theodosopoulos and other analysts.
That's still a "non-trivial" number, Webster argued, and allows Cisco to engage "different silos of its service provider business."
 
Webster also acknowledged that the CRS-3 family targets high-end service providers and carriers who face enormous traffic demands. But he said Cisco has also found success selling high-end carrier router products into governments and enterprises, and as traffic and mobile infrastructure needs continue to increase with the growth of networks, VARs, too, can service many of those customers.
 
"For service providers who aren't the nation's largest, a lot of those products are sold through VARs," he explained. "Plus, there are a lot of smaller providers who are getting into the market for high-end gear. There's a return on investment. The government sector, in particular, or large universities or research centers, are also deploying these types of technologies. Enterprises, too, where if they have particularly large networks effectively start to resemble service providers. The beauty is that we can scale it as it grows."
 
The overall service provider router market is itself bouncing back. According to a late February report by Dell (NSDQ:Dell)'Oro Group, the market in the fourth quarter of 2009 recorded its highest sequential growth rate since mid-2007, with quarterly router sales increasing 15 percent.
 
"The good news is that router manufacturers saw their customers loosening purse strings during the fourth quarter, and that lends confidence for market recovery in 2010," said Shin Umeda, vice president at Dell'Oro Group, in a statement with the research note.
 
According to Dell'Oro, Cisco and Juniper maintain their No. 1 and No. 2 respective worldwide market share positions in service provider routers, with Cisco's quarter-over-quarter growth at 11 percent and Juniper's at 17 percent. Alcatel-Lucent, in third place, grew 17 percent according to Dell'Oro, and Huawei (No. 4) and Ericsson (No. 5), grew 22 percent and 39 percent respectively

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