[c-nsp] Nexus 9500

[Skeeve Stevens]

Great detail... thanks for helping.


...Skeeve

*Skeeve Stevens - *eintellego Networks Pty Ltd
skeeve at eintellegonetworks.com ; www.eintellegonetworks.com

Phone: 1300 239 038; Cell +61 (0)414 753 383 ; skype://skeeve

facebook.com/eintellegonetworks ;  <http://twitter.com/networkceoau>
linkedin.com/in/skeeve

twitter.com/theispguy ; blog: www.theispguy.com


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On Wed, Dec 31, 2014 at 1:44 PM, Joshua Morgan <joshua.morgan at gmail.com>
wrote:

> Skeeve,
>
> http://d2zmdbbm9feqrf.cloudfront.net/2014/anz/pdf/BRKDCT-3640.pdf will
> likely answer your questions. Namely with 6 fabric modules installed in the
> chassis, each line card slot can have up to 1.92Tbps forwarding bandwidth
> in each direction. Each fabric module can provide the line card slot up to
> 320 Gbps. Fabric modules have two Trident II ASICs. Each ASIC has 32x 40
> Gbps Hi-Gig2 interfaces. 4x 40 Gbps Hi-Gig2 interfaces from each ASIC (8
> total per fabric module = 320 Gbps) connect to each line card slot.
>
> The 16-slot chassis requires different fabric modules which have four
> Trident II ASICs, to support 1.92 Tbps forwarding bandwidth per line card
> slot across all slots.
>
> Hope this helps,
>
> Josh
>
> On Wed, Dec 31, 2014 at 1:05 PM, Skeeve Stevens <
> skeeve+cisconsp at eintellegonetworks.com> wrote:
>
>> Hi all,
>>
>> Just trying to understand the hardware requirements on a Nexus 9508...
>>  It
>> is that time of the year when getting anything out of Cisco is slow
>> (reasonable) and I thought I would ask the Cisco-NSP brain trust.
>>
>> You have the N9K-X9636PQ line card... which is 36 x 40Gb ports...
>> non-blocking (the 1.5:1 sub model is N9K-X9536PQ).
>>
>> It says it needs 6 fabric modules for maximum bandwidth on the X9636PQ -
>> for that one card - the X9536PQ only needs 3 FM's.
>>
>> But... the 9508 Chassis seems to only have capacity for 6 FMs... same with
>> all of them actually. 9504 and 9516.
>>
>> Does this mean that only 1 x X9636PQ can actually work non-blocking in a
>> whole 9508 Chassis?  or two of the X9536PQ?
>>
>> So I could have a 8 slot chassis with one card in it and be non-blocking?
>> Or.. being that a FM can do 8 x 40Gb links to a line card, then 6 will do
>> 48 x 40Gb ports... so 36 on one card and 12 on another... assuming you
>> could split it like that somehow.
>>
>> Or there is the N9K-X9432PQ - which seems to be linerate for > 200byte
>> packets... (this seems like an odd card to make).
>>
>> So it sounds like a 9504 would make more sense as the 9508 would have
>> wasted line card slots... even the 9504 will waste 2.
>>
>> Is this sound logic?
>>
>>
>> ...Skeeve
>>
>> *Skeeve Stevens - *eintellego Networks Pty Ltd
>> skeeve at eintellegonetworks.com ; www.eintellegonetworks.com
>>
>> Phone: 1300 239 038; Cell +61 (0)414 753 383 ; skype://skeeve
>>
>> facebook.com/eintellegonetworks ;  <http://twitter.com/networkceoau>
>> linkedin.com/in/skeeve
>>
>> twitter.com/theispguy ; blog: www.theispguy.com
>>
>>
>> The Experts Who The Experts Call
>> Juniper - Cisco - Cumulus Linux - Cloud - Consulting - IPv4 Brokering
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>
>