[CentOS] OT: CentOS server with 2 GbE links to 2 GbE switches

Patrick wrote:

>Hi all,
>
>I am trying to come up with an architecture that has some redundancy.
>The idea is to hook up the two GbE LAN interfaces of a CentOS server to
>two Gigabit Ethernet switches. In case one switch goes down, there is a
>redundant path (the server is redundant too). Here is the idea:
>
>                             -----------
>                            |    GbE    |   
> PCs            ------------|   switch  |------------
>  |            |             -----------             |
>  |   -----------------                        -----------------
>  ---| Workgoup Switch |                      | CentOS/Asterisk |
>  |   -----------------                        -----------------
>  |            |             -----------             |
> VoIP           ------------|    GbE    |------------
>Phones                      |   switch  |   
>                             -----------
>
>  
>


Why don't you just bond the two interfaces?  An alternative would be to 
use one interface as a primary link and periodically check its 
"hearbeat".  If the interface goes down, you just add the route for the 
other interface to your default gateway.  Bonding the 2 channels is 
probably the easier method, though.

Cheers,