Re: [j-nsp] Juniper SRX and ssh freeze

2010-12-23 Thread Julien Goodwin
On 23/12/10 21:34, Florian Weimer wrote:
 * Julien Goodwin:
 
 For my SRX at the office back when I installed it (9.6 IIRC) *TCP*
 keepalives would not extend session timeouts, but *SSH* keepalives
 worked very well, that's the ServerAliveInterval setting in OpenSSH.
 
 Typically, TCP keepalives happen at such long intervals that they do
 not keep firewall state alive.

In my specific case (whinging admin in internal IT, not production) they
were at least every minute.

We do actually have some systems that are so old/weird they don't
support the ServerAliveInterval, but they're all fairly minor so it's
not usually a problem.

-- 
Julien Goodwin
Studio442
Blue Sky Solutioneering
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Re: [j-nsp] Juniper SRX and ssh freeze

2010-12-23 Thread Florian Weimer
* Julien Goodwin:

 For my SRX at the office back when I installed it (9.6 IIRC) *TCP*
 keepalives would not extend session timeouts, but *SSH* keepalives
 worked very well, that's the ServerAliveInterval setting in OpenSSH.

Typically, TCP keepalives happen at such long intervals that they do
not keep firewall state alive.

-- 
Florian Weimerfwei...@bfk.de
BFK edv-consulting GmbH   http://www.bfk.de/
Kriegsstraße 100  tel: +49-721-96201-1
D-76133 Karlsruhe fax: +49-721-96201-99

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Re: [j-nsp] EX4200: VC incremental upgrade ?

2010-12-23 Thread Alexandre Snarskii
On Mon, Oct 25, 2010 at 03:31:47PM +0200, Philipp Geschke wrote:
 On Mon, 25 Oct 2010 17:10:46 +0400, Alexandre Snarskii s...@snar.spb.ru
 wrote:
  Hi!
  
  Silly question: is it possible to perform incremental upgrade
  on ex-series virtual-chassis ? I.e., upgrade some switches
  (using 'request system software add member NN'), switchover
  master to 'upgraded' part, then upgrade remaining switches ? 
 
 no, that is currently not possible.
 You can always take single switches out of the stack and upgrade them
 outside of the stack, however, a hitless upgrade is not really possible.

Looks like it is possible. In progress of building new virtual-chassises
I found that one of VC's periodically flapped (pfem coredumps with 
corresponding interface flaps) right after commits.
Investigation shown that it was because of version mismatch 
on one of stack members: 

s...@vsw02# run show version | match Base OS boot|fpc
fpc0:
--
JUNOS Base OS boot [10.3R2.11]
fpc1:
--
JUNOS Base OS boot [10.3R2.11]
fpc2:
--
JUNOS Base OS boot [10.3R2.11]
fpc3:
--
JUNOS Base OS boot [10.3R2.11]
fpc4:
--
JUNOS Base OS boot [10.3R1.9]

and after upgrading JunOS on fpc4 to match others I see no more
errors. However, the fact that 10.3R1 switch was able to join 10.3R2
virtual-chassis leads me to interesting conclusion - looks like
incremental upgrade within the same major version, like 10.3R1 to 
10.3R2 to 10.3R3 is possible, while upgrade from 10.3 to 10.4 is not. 
And, of course, there must be no configuration changes during upgrade.

PS: or it is well-known bug to be fixed in some next release ? 

-- 
In theory, there is no difference between theory and practice. 
But, in practice, there is. 

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Re: [j-nsp] JNCIS-ENT - Software to prepare for exam

2010-12-23 Thread Nick Ryce
When you pass the assessment it also gives you a prometric discount code :)

Nick

-Original Message-
From: juniper-nsp-boun...@puck.nether.net 
[mailto:juniper-nsp-boun...@puck.nether.net] On Behalf Of 
david@orange-ftgroup.com
Sent: 22 December 2010 15:15
To: 'Jared Gull'; juniper-nsp@puck.nether.net
Subject: Re: [j-nsp] JNCIS-ENT - Software to prepare for exam

Thank you.




David Roy
Orange France - RBCI IP Technical Assistance Center
Tel.   +33(0)299876472
Mob. +33(0)685522213
Email. david@orange-ftgroup.com


-Message d'origine-
De : Jared Gull [mailto:jmg...@yahoo.com] Envoyé : mercredi 22 décembre 2010 
15:53 À : juniper-nsp@puck.nether.net; ROY David DTF/DERX Objet : Re: [j-nsp] 
JNCIS-ENT - Software to prepare for exam

Hi David,

I'm not aware of any Boson or boson-like tests out there but the fast track 
portal does offer free routing and switching study guides and assessment tests. 
These study guides and assessment tests are great resources for this test. If 
you don't have it, the URL for the fast track is below:

http://www.juniper.net/us/en/training/fasttrack/

Jared

--- On Wed, 12/22/10, david@orange-ftgroup.com 
david@orange-ftgroup.com wrote:

 From: david@orange-ftgroup.com david@orange-ftgroup.com
 Subject: [j-nsp] JNCIS-ENT - Software to prepare for exam
 To: juniper-nsp@puck.nether.net juniper-nsp@puck.nether.net
 Date: Wednesday, December 22, 2010, 3:24 AM Hi all,

 Is there a tool, like Boson software, to prepare for the new JNCIS-ENT
 exam ?

 thks,
 regards,
 David






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[j-nsp] RE accessories

2010-12-23 Thread Richard A Steenbergen
Dear Juniper,

I will deploy one of these on every router until all my cases are 
resolved. :)

http://cluepon.net/ras/juniper-accessory.wmv

Love,
ras

-- 
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GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)
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