[c-nsp] network design question

[Scott Granados]

Sorry I should have been more specific on the server side.

We are using dual AMD servers running either CentOS or Suse 10.0.  


G. Scott Granados
Sr. Network Operations Specialist
OFFICE: 415-946-2112 EXT. 222
CELL: 408-569-4017
URL: http://www.jeteye.com

-----Original Message-----
From: Roland Dobbins [mailto:rdobbins at cisco.com] 
Sent: Wednesday, September 06, 2006 12:17 PM
To: Scott Granados
Cc: Cisco-NSP Mailing List
Subject: Re: [c-nsp] network design question


On Sep 6, 2006, at 12:11 PM, Scott Granados wrote:

>  Would it be possible to attach the mysql master
> to both A and B and use some method that allows either card to be
> reached by the same IP.

Depending on the server hardware and OS you're running, you may be  
able to do NIC failover on the host which, upon detecting loss of  
link on the active switch and port, will simply activate the same IP  
address (and in some configurations, even the same MAC address) on  
the secondary switch/port.  Solaris supports this, and I believe you  
can do it with other *NIXes as well.  I think Windows supports this  
in some NIC configurations, too (will be NIC-and-server-specific).

------------------------------------------------------------------------

-----
Roland Dobbins <rdobbins at cisco.com> // 408.527.6376 voice

One of the main causes of the fall of the Roman Empire was that,  
lacking zero,
they had no way to indicate successful termination of their C programs.

            	         -- Robert Firth