[Asterisk-Users] Bonded ethernet ports and *

Julio Arruda jarruda-asterisk at jarruda.com
Wed Dec 14 14:08:10 MST 2005


Rich Adamson wrote:
..
> A fairly common assumption is the failover happens in xxx milliseconds, but
> due to nic card design (etc) a different MAC address is used in the failover
> condition. That confuses the hell out of the layer-3 boxes and negates the
> value of the failover. (All documentation, etc, is correct but actual
> implementation in this example is limited by the nic card's inability
> to use a different MAC address from what's programmed into it. There are
> a large number of current nic cards like that.)
> 

I can see this being a problem (not only with layer 3 boxes, but even 
with other IP endpoints in the same segment, after all, their ARP 
binding will become useless in this case..
But would you have any example of this ?
Most of the time, should be a no-brainer to have the NIC use a 
"non-burned-in-address", in fact, I wonder if is not required by the 
802.3 specs (LAA), since protocols like DecNET, SNA and etc tend to 
require this.




More information about the asterisk-users mailing list