FWIW, when I took my JNCIE, I used all J-series running flow code (disabled) for my study pod and never had any issues. I have 9 physical routers plus a bunch of VRs on them. I agree there can be issues depending on what you are trying to do, but I am not sure why this is such a big deal if this is just a lab setup. I wouldn't test something on a J-series and expect to deploy it on M/MX/T in production or something, but that wasn't what the OP was asking to do. For a home lab I can't think of any reason not to use some J-series boxes. -Jeff On Apr 11, 2012, at 1:29 PM, Leigh Porter wrote:
On 11 Apr 2012, at 18:36, "Carl Rosevear" <crosevear@skytap.com> wrote:
Yeah, I have to apply the term "awful" and "annoying" to the packet mode implementation on SRX/J-series. Anyway, I spent *hours* with JTAC on the phone trying to get the thing to just pass packets. Best part was, I didn't know how to do it and nor did they! I escalated, worked with many engineers. My key statement was "I just want my router to route. Make it do what it is supposed to do. No session tracking! This is not a firewall." So, now it doesn't require valid sessions to pass packets but it does still appear to *track* sessions in some tables and I am, of course, very curious when some attack vector will fill up some table.
I have had some rather odd issues with the SRX boxes but JTAC were pretty good at turning around fixes for me for my specific issues.
Since then I have had quite a lot of SRX boxes across the range running various MPLS services including MPLS over GRE with fragmentation/reassembly which has been working very well. Since 11.1R3 I've had no issues at all with them.
So yeah the new flow mode stuff had its issues, but as a *small* MPLS box it is very functional. Of course in MPLS mode, you turn the flow stuff off..
-- Leigh Porter
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