RE: F5/Cisco catalyst configuration question

[Dylan Ebner <dylan.ebner () crlmed com>]

This couldn't be something as simple as a crossover cable, could it?

 

-----Original Message-----
From: Scott Spencer [mailto:scott () dwc-computer com] 
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,
 
It's the F5-BIG-LTM-6400, pair of them.
Thanks for your info. Got alot of good, helpful responses.
 
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: 972.931.3340  <mailto:scott () dwc-computer com> scott 
() dwc-computer com <http://www.dwc-it.com/> www.dwc-it.com 
Cisco/Juniper/F5/Foundry/Brocade/Sun/IBM/Dell/Liebert and more ~   
 

  _____  

From: packetmonger () gmail com [mailto:packetmonger () gmail com] On Behalf Of Darren 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? 

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 () mindspark 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 necessarily explains why you aren't seeing a link light on the LTM 
though. I can't remember 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 negotiate 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 christopher.greves () mindspark com
 
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 , have matched ports (speed,duplex ect..) but no 
link light at all on the F5. Does 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: 972.931.3340  <mailto:scott () dwc-computer com> scott 
() dwc-computer com <http://www.dwc-it.com/> www.dwc-it.com Cisco/Juniper/F5/Foundry/Brocade/Sun/IBM/Dell/Liebert and 
more ~







-- 
--  Darren Bolding                  --
--  darren () bolding org           --