Re: Nexus in DC? from Tony Varriale on 2009-08-31 (Ccielab archives 08/2009)

From: Tony Varriale <tvarriale_at_flamboyaninc.com>
Date: Mon, 31 Aug 2009 21:22:11 -0400

Some people get it and some don't. Some people never will.

Sent from my iPhone

On Aug 31, 2009, at 4:20 PM, Rick Mur <rmur_at_ipexpert.com> wrote:

> Does the Nexus 7k support FCoE or fibre channel?
> The 7k is nothing more than a big 10G switch.
>
> The 5k is a totally different story and I definitely see the use of
> that one. This is a fantastic switch, bringing 2 worlds together as
> it should be, reducing cabling and introducing an entire new
> generation of switches and network designs.
>
> As for Cisco TrustSec, great feature, but you have to replace your
> entire network you use it, still it's an evolvement of network
> designs. I kind of miss the spanning-tree enhancements? Do you mean
> multi-chassis etherchannels to create a loop-free topology? This is
> something that is an awesome technique, this is where Juniper lacks,
> but it's in the pipeline.
>
> I personally think the Nexus product line is placed too tight, it
> can only be used for a single purpose on one place in the network,
> but I still see all the advantages and I would love seeing it evolve
> and become mature.
>
> (btw. Juniper EX4200 vs Cat 3750E, the Juniper is a lot cheaper when
> you use 10G uplinks in a LAN design)
>
> P.S. It doesn't hurt to be critical right? ;-) No offense! I always
> prefer Cisco, but sometimes it's good to take a step back and see
> all from a different perspective.
>
>
> --
> Regards,
>
> Rick Mur
> CCIE2 #21946 (R&S / Service Provider)
> Sr. Support Engineer IPexpert, Inc.
> URL: http://www.IPexpert.com
>
> On 31 aug 2009, at 17:43, Mike Kraus (mikraus) wrote:
>
>> What about FCoE? The Juniper EX series is good for customers wanting
>> high performance/cost using yesterday's design, which incurs multiple
>> chassis (Ethernet & fibre channel), additional cabling/power costs,
>> and
>> a strict top of rack or end of row design (where reality requires
>> both
>> in data centers today).
>>
>> If you are looking at the Nexus series as a big 10G switch, you're
>> missing the point of the Nexus product line.
>>
>> -----Original Message-----
>> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On
>> Behalf Of
>> Rick Mur
>> Sent: Monday, August 31, 2009 3:23 AM
>> To: Tony Varriale
>> Cc: ccielab_at_groupstudy.com
>> Subject: Re: Nexus in DC?
>>
>> I know you can enable 'performance mode' so the linecard shuts down
>> 24
>> ports of the linecard.
>> Why can't the EX compete to the Nexus? The performance is quite the
>> same
>> if not better as the Nexus line and totally owns the Cat6500 in
>> terms of
>> performance. Still the Cat wins it on service modules and the vast
>> amount of line cards.
>> And btw. the EX8200 already has 320Gbps backplane connection for all
>> linecards while the Nexus gets support for 230Gbps linecards end of
>> the
>> year and I don't even want to know when they start thinking of
>> 500Gbps
>> to finally offer true non-blocking 32-port 10Gbps linecards :-) The
>> only
>> thing the EX8200 lacks is support for some sort of multi-chassis
>> etherchannel, this is on the roadmap to be released soon though.
>>
>> --
>>
>> Regards,
>>
>> Rick Mur
>> CCIE2 #21946 (R&S / Service Provider)
>> Sr. Support Engineer IPexpert, Inc.
>> URL: http://www.IPexpert.com
>>
>>
>> On Mon, Aug 31, 2009 at 3:47 AM, Tony Varriale
>> <tvarriale_at_flamboyaninc.com>wrote:
>>
>>> Ok.you didn't say anything about the n7k in your message.
>>>
>>>
>>>
>>> The n7k 10gig card can be "non-blocking".even thought that isn't the
>>> correct terminology.
>>>
>>>
>>>
>>> Also, the v2 cards are coming out next year which will address the
>>> 10g
>>
>>> card oversub issue.
>>>
>>>
>>>
>>> The EX series doesn't really compete with the Nexus line. It's more
>>> of a competitor to the 6500s/ME6500s. When the new Cisco Sup comes
>>> out it will match the 10gig per slot capabilities. The EX is more
>>> of
>>> just straight 10GE enterprise or SP.
>>>
>>>
>>>
>>> tv
>>>
>>>
>>>
>>> From: Rick Mur [mailto:rmur_at_ipexpert.com]
>>> Sent: Sunday, August 30, 2009 5:46 PM
>>> To: Tony Varriale
>>> Cc: ccielab_at_groupstudy.com
>>> Subject: Re: Nexus in DC?
>>>
>>>
>>>
>>> The Nexus 7k. Of the 32-port 10GE linecard, you can only use 8
>>> specifically marked ports if you want the full non-blocking 10GE due
>>> to the backplane connection. End 2009 they will release a linecard
>>> with 230Gbps backplane connection, so that should give a little
>>> better
>> port-density vs.
>>> performance. Also the Cat6500 is oversubscribed as it also has a
>>> 40Gbps backplane connection and you can buy 8-port 10GE linecards
>>> and
>>> 48-port 1GE ones.
>>>
>>>
>>>
>>> So I really like the non-blocking idea of the Juniper EX8200, great
>>> selling point :-)
>>>
>>>
>>> --
>>>
>>> Regards,
>>>
>>> Rick Mur
>>> CCIE2 #21946 (R&S / Service Provider)
>>> Sr. Support Engineer - IPexpert, Inc.
>>> URL: http://www.IPexpert.com
>>>
>>>
>>>
>>> On Mon, Aug 31, 2009 at 12:34 AM, Tony Varriale <
>>> tvarriale_at_flamboyaninc.com>
>>> wrote:
>>>
>>> Which Cisco product are you referring to that is oversubbed?
>>>
>>> Sent from my iPhone
>>>
>>>
>>>
>>> On Aug 30, 2009, at 5:09 PM, Rick Mur <rmur_at_ipexpert.com> wrote:
>>>
>>> I will be installing the first UCS chassis' in the Netherlands
>>> within
>>> the next month, of course with the UCS6k (Tweaked Nexus 5k). I also
>>> implemented one of the first Nexus 5k's in NL last March :-) So yes
>>> cool stuff! Still needs some time to get mature in terms of hardware
>>> and software.
>>> Juniper actually has a better DC switch with their EX8200 (totally
>>> non-blocking), much cheaper for the same amount of bandwidth (not
>>> port
>>
>>> density, but the Juniper is NOT oversubscribed).
>>>
>>> --
>>>
>>> Regards,
>>>
>>> Rick Mur
>>> CCIE2 #21946 (R&S / Service Provider)
>>> Sr. Support Engineer IPexpert, Inc.
>>> URL: http://www.IPexpert.com
>>>
>>>
>>> On Sun, Aug 30, 2009 at 9:07 PM, Ronald Johns <rj686b_at_att.com>
>>> wrote:
>>>
>>> We're doing Nexus as well. In fact, we're likely ordering
>>> everything
>>> tomorrow. Keep in mind, there's a limit to 12 FEX's to a 5000
>>> cluster, or at least that's what they tell me. They screwed up our
>>> first quote because our SE didn't look into this...
>>>
>>> -----Original Message-----
>>> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf
>>> Of Omkar Tambalkar
>>> Sent: Thursday, August 27, 2009 5:12 PM
>>> To: Cisco certification
>>> Subject: Re: Nexus in DC?
>>>
>>> We are also rolling out the NX 7010 and 5020 in the next couple of
>>> months as part of our datacenter network upgrade. I am planning to
>>> use
>>
>>> vPCs from the 5020 to 7010 but as we are using 2 VDCs there will be
>>> vPC for each VDC translating to 4 10g coming out of each 5020. I am
>>> sure we will have to get a extra 32 port 10g card with 8 ports
>>> dedicated for line speed for these cross connects. Not to mention
>>> you
>>> need 1 keep-alive and 1 cross-connect for each VDC.
>>> It seems that the 7010 can do lot of service aggregation using the
>>> ACE, WAAS modules but we just want to consolidate our aggregation
>>> switches in to single set of chasiss.
>>> On top of that in a few months time, we have provide active-active
>>> datacenter functionality with a set of NX 7010 at each datacenter so
>>> that traffic can be load balanced.
>>> And the training was a 4-day Firefly course...which was fairly basic
>>> in terms of depth and breadth of material covered Fun times.......
>>>
>>> -Omkar Tambalkar
>>> CCIE #24892
>>>
>>> On Wed, Aug 26, 2009 at 7:23 AM, Tony Varriale
>>> <tvarriale_at_flamboyaninc.com>wrote:
>>>
>>> Yup.
>>>
>>> If this is your first experience with any of those platforms I
>>> guarantee you are going to run into something not so pleasant.
>>>
>>> tv
>>>
>>> -----Original Message-----
>>> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf
>>> Of Marc La Porte
>>> Sent: Wednesday, August 26, 2009 3:27 AM
>>> To: Cisco certification
>>> Subject: Nexus in DC?
>>>
>>> Hey guys,
>>>
>>> Any of you already having practical experience with big Nexus
>>> roll-outs
>>>
>>> in
>>>
>>> Data Centers? Running into any "problems"?
>>>
>>> For a customer we are planning to deploy 5020 end-of-row switches
>>> with
>>
>>> 2148T top-of-rack switches, aggregated in 7018s fully loaded with
>>> 32-port
>>>
>>> 10-Gbps
>>>
>>> blades. Just to give you an idea, the complete data center would be
>>>
>>> around
>>>
>>> 256 rows (30,000 ports)...
>>>
>>> Cheers,
>>> Marc
>>>
>>>
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Received on Mon Aug 31 2009 - 21:22:11 ART

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