[116820] in North American Network Operators' Group
RE: F5/Cisco catalyst configuration question
daemon@ATHENA.MIT.EDU (Dylan Ebner)
Thu Aug 20 13:36:52 2009
From: Dylan Ebner <dylan.ebner@crlmed.com>
To: Scott Spencer <scott@dwc-computer.com>, 'Darren Bolding'
<darren@bolding.org>,
'Christopher Greves' <Christopher.Greves@mindspark.com>
Date: Thu, 20 Aug 2009 17:36:19 +0000
In-Reply-To: <D46D0B1626E1473DA4B7F7DD5B76B1E6@HPWORKSTATION>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
This couldn't be something as simple as a crossover cable, could it?
=20
-----Original Message-----
From: Scott Spencer [mailto:scott@dwc-computer.com]=20
Sent: Thursday, August 20, 2009 11:24 AM
To: 'Darren Bolding'; 'Christopher Greves'
Cc: nanog@nanog.org
Subject: RE: F5/Cisco catalyst configuration question
Darren,
=20
It's the F5-BIG-LTM-6400, pair of them.
Thanks for your info. Got alot of good, helpful responses.
=20
Best regards,
=20
Scott Spencer
Data Center Asset Recovery/Remarketing Manager Duane Whitlow & Co. Inc.
Nationwide Toll Free: 800.977.7473. Direct: 972.865.1395 Fax: 972.931.334=
0 <mailto:scott@dwc-computer.com> scott@dwc-computer.com <http://www.dwc-i=
t.com/> www.dwc-it.com=20
Cisco/Juniper/F5/Foundry/Brocade/Sun/IBM/Dell/Liebert and more ~ =20
=20
_____ =20
From: packetmonger@gmail.com [mailto:packetmonger@gmail.com] On Behalf Of D=
arren Bolding
Sent: Wednesday, August 19, 2009 6:58 PM
To: Christopher Greves
Cc: Scott Spencer; nanog@nanog.org
Subject: Re: F5/Cisco catalyst configuration question
What model BIG-IP?=20
On some models I have had to set the BIG-IP's or the 6500 (can't remember
which) to specified speed/duplex and the other side to auto.
I believe it was auto on the BIG-IP and fixed on the 6500.
Setting both sides the same did not work.
On Wed, Aug 19, 2009 at 10:41 AM, Christopher Greves <Christopher.Greves@mi=
ndspark.com> wrote:
Scott,
We've had issues in the past with IOS 6500's auto-negotiating uplink ports =
with an LTM into ISL Trunk mode. This only occurred when we had the port on=
the LTM configured as a tagged interface. It was easily solved by forcing =
the port on the 6500 into dot1q encapsulation. I'm not sure this necessaril=
y explains why you aren't seeing a link light on the LTM though. I can't re=
member what the interface status was on both sides. This does correlate to =
why it's working on the 2950's as they don't support ISL and would likely n=
egotiate into dot1q.
Chris
Christopher Greves | Senior Systems Engineer One North Lexington Ave, 9th=
Floor - White Plains, NY 10601 T 914-826-2067 | C 914.420.8340 | E chr=
istopher.greves@mindspark.com
=20
Mindspark Interactive Network, Inc. is an IAC company.
-----Original Message-----
From: Scott Spencer [mailto:scott@dwc-computer.com]
Sent: Wednesday, August 19, 2009 1:13 PM
To: nanog@nanog.org
Subject: F5/Cisco catalyst configuration question
Trying to link an F5 Local Traffic Manager with a Cisco Catalyst 6500 , hav=
e matched ports (speed,duplex ect..) but no link light at all on the F5. Do=
es link with a Cisco 2950 switch in between but I need a direct connection =
with the 6500.
Any suggestions what to try?
Best regards,
Scott Spencer
Data Center Asset Recovery/Remarketing Manager Duane Whitlow & Co. Inc.
Nationwide Toll Free: 800.977.7473. Direct: 972.865.1395 Fax: 972.931.334=
0 <mailto:scott@dwc-computer.com> scott@dwc-computer.com <http://www.dwc-i=
t.com/> www.dwc-it.com Cisco/Juniper/F5/Foundry/Brocade/Sun/IBM/Dell/Lieber=
t and more ~
--=20
-- Darren Bolding --
-- darren@bolding.org --
