[c-nsp] Nexus 9500

[Joshua Morgan]

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
>
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> linkedin.com/in/skeeve
>
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>
>
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