[j-nsp] MX304 Port Layout

[Andrey Kostin]

Saku Ytti писал(а) 2023-06-09 10:12:
> On Fri, 9 Jun 2023 at 16:58, Andrey Kostin via juniper-nsp
> <juniper-nsp at puck.nether.net> wrote:
> 
>> Not sure why it's eye-watering. The price of fully populated MX304 is
>> basically the same as it's predecessor MX10003 but it provides 3.2T BW
>> capacity vs 2.4T. If you compare with MX204, then MX304 is about 20%
>> expensive for the same total BW, but MX204 doesn't have redundant RE 
>> and
>> if you use it in redundant chassis configuration you will have to 
>> spend
>> some BW on "fabric" links, effectively leveling the price if 
>> calculated
>> for the same BW. I'm just comparing numbers, not considering any real
> 
> That's not it, RE doesn't attach to fabric serdes.

Sorry, I mixed two different points. I wanted to say that redundant RE 
adds more cost to MX304, unrelated to forwarding BW. But if you want to 
have MX204s in redundant configuration, some ports have to be sacrificed 
for connectivity between them. We have two MX204s running in pair with 
2x100G taken for links between them and remaining BW is 6x100G for 
actual forwarding in/out. In this case it's kind of at the same level 
for price/100G value.

> 
> I expect many people in this list have no need for more performance
> than single Trio YT in any pop at all, yet they need ports. And they
> are not adequately addressed by vendors. But they do need the deep
> features of NPU.

I agree, and that's why I asked about HQoS experience, just to add more 
inexpensive low-speed switch ports via trunk but still be able to treat 
them more like separate ports from a router perspective.

> I keep hoping that someone is so disruptive that they take the
> nvidia/gpu approach to npu. That is, you can buy Trio PCI from newegg
> for 2 grand, and can program it as you wish. I think this market
> remains unidentified and even adjusting to cannibalization would
> increase market size.
> I can't understand why JNPR is not trying this, they've lost for 20
> years to inflation in valuation, what do they have to lose?

I'm not in this market, have no qualification and resources for 
development. The demand in such devices should be really massive to 
justify a process like this.

Kind regards,
Andrey