Re: [j-nsp] Outgrowing a QFX5100

2022-09-16 Thread Saku Ytti via juniper-nsp
On Fri, 16 Sept 2022 at 22:12, Jason Healy via juniper-nsp
 wrote:

Hey Jason,

> My question is, what would be the logical "step up" from the qfx on a small 
> network?  I'm thinking the MX240 as it's the smallest router that has 
> redundant REs.  However, I have no experience with the router family (we're 
> all EX/QFX).  I'd consider a newer member of the QFX family, but I'd need to 
> know I'm not going to bump into a bunch of weird "unsupported on this 
> platform" issues.

Yes. I don't immediately cannot think of any feature that isn't
supported on MX that is supported on EX/QFX.

Broadly speaking if you are not cost-sensitive, and you don't need the
density, always buy an NPU box such as MX, because it's inherently
more feature complete.

Pipeline boxes like EX/QFX make sense if you are cost sensitive or
need high density and can answer what your requirements are ahead of
time and run a field trial against those specific requirements. In my
experience for access providers your requirements are not a knowable
variable, because you will introduce a new product during the life
cycle of a device, therefore you will be carrying additional risk with
pipeline compared to NPU. If you're a cloudy shop or incumbent telco
you likely can have a frozen set of requirements that are knowable
a-priori, which supports pipeline use-case.

> I'm fine with EOL/aftermarket equipment; we've got a pretty traditional 
> layer-2 spoke-and-hub setup with layer-3 for IRB and a default route to our 
> ISP (no VXLAN, tunneling, etc).  Our campus isn't growing so capacity isn't a 
> huge issue (we're 1g/10g uplinks everywhere, and the 10g aren't close to 
> saturation).  I *might* want 40g as a handoff to an aggregation layer, but 
> that's about it.  Thus, I'm OK with a relative lack of new features.

Your problem is the slow rate interfaces and getting reasonable
support for them. With MX if you are buying from a channel for chassis
boxes you should be only buying LC9600, which is 24x400GE, another
alternative is fixed config MX304. Both may be highly unsatisfactory
to you in the front-plate. ACX portfolio may have some middle-ground
to you.


-- 
  ++ytti
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[j-nsp] Flowspec not filtering traffic.

2022-09-16 Thread Gustavo Santos via juniper-nsp
Hi,

We have noticed that flowspec is not working or filtering as expected.
Trying a DDoS detection and rule generator tool, and we noticed that the
flowspec rule is installed,
the filter counter is increasing , but no filtering at all.

For example DDoS traffic from source port UDP port 123 is coming from an
Internet Transit
facing interface AE0.
The destination of this traffic is to a customer Interface ET-0/0/10.

Even with all information and "show" commands confirming that the traffic
has been filtered, customer and snmp and netflow from the customer facing
interface is showing that the "filtered" traffic is hitting the destination.

Is there any caveat or limitation or anyone hit this issue? I tried this
with two MX10003 routers one with 19.R3-xxx and the other one with 20.4R3
junos branch.

Regards.
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[j-nsp] Outgrowing a QFX5100

2022-09-16 Thread Jason Healy via juniper-nsp
Looking for a little wisdom from the list.

We're a small school campus that's been running a QFX 5100 as our core 
switch/router for several years.  It's been a good piece of equipment but we 
continue to hit weird limitations and I'm wondering if we're pushing the 
platform too hard.

My question is, what would be the logical "step up" from the qfx on a small 
network?  I'm thinking the MX240 as it's the smallest router that has redundant 
REs.  However, I have no experience with the router family (we're all EX/QFX).  
I'd consider a newer member of the QFX family, but I'd need to know I'm not 
going to bump into a bunch of weird "unsupported on this platform" issues.

Does the MX line handle all the layer-2 stuff that the QFX has, like DHCP 
snooping, vlan firewall filters, or even dot1x?  Coming from the switching 
family, I wasn't sure how prevalent those features are on the layer-3 
equipment, or if they're configured in some totally different way.

I'm fine with EOL/aftermarket equipment; we've got a pretty traditional layer-2 
spoke-and-hub setup with layer-3 for IRB and a default route to our ISP (no 
VXLAN, tunneling, etc).  Our campus isn't growing so capacity isn't a huge 
issue (we're 1g/10g uplinks everywhere, and the 10g aren't close to 
saturation).  I *might* want 40g as a handoff to an aggregation layer, but 
that's about it.  Thus, I'm OK with a relative lack of new features.

Thanks,

Jason
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