[152050] in North American Network Operators' Group
Re: Cheap Juniper Gear for Lab
daemon@ATHENA.MIT.EDU (Owen DeLong)
Tue Apr 10 21:27:38 2012
From: Owen DeLong <owen@delong.com>
In-Reply-To: <CAAAwwbWRHwb29zscfDhnHQXHmOb+bVUsTnVWGeq0k_OfimwGDA@mail.gmail.com>
Date: Tue, 10 Apr 2012 18:23:55 -0700
To: Jimmy Hess <mysidia@gmail.com>
Cc: jgoodwin@studio442.com.au, "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Apr 10, 2012, at 4:05 PM, Jimmy Hess wrote:
> On Tue, Apr 10, 2012 at 9:24 AM, Tim Eberhard <xmin0s@gmail.com> =
wrote:
>> I find it humorous that you think J/SRX junos isn't real junos.
>>=20
> If it runs JunOS, then yeah, it's real JunOS. It might not have the
> feature you're looking for, but that's something different.
>=20
No, it's not. Flow mode is NOT packet mode and it doesn't really ever =
run packet
mode in the current version. This has fundamental and significant =
impacts on the
way packets are handled when being forwarded through the box which come =
with
side-effects that cannot be overcome by mere configuration changes.
> The Juniper ERX edge routers are what isn't "real" JunOS.
> It's as if they were trying to make a clone of the IOS CLI:
>=20
Those are not JunOS at all. They don't really try to pretend to be.
The SRX and J-Series Services routers, OTOH, are most definitely =
pretending to be
JunOS while not behaving like JunOS at certain fundamental levels.
Owen
