[c-nsp] Cisco 3020 blade switches hung, HLFM errors, network meltdown?

[Mateusz Błaszczyk]

Matthew,

On 19/03/2008, matthew zeier <mrz at velvet.org> wrote:
>
[...]
>   From some of the log entries I could gleam from the console buffer, it
>  looks like the native vlan on one of the port channel members was
>  inadvertently changed and was marked as incompatible with the other
>  bundle member.  Still, I'm somewhat surprised that that hung the blade
>  switches to the extent that everything else became  unusable.
>
>  Any insights?
>

I am not sure I understand your topology but if you are not running
STP and port-channel members became independent then you are created a
loop between 2 devices.
the impact of such loop on such hardware is not known to me.

Best Regards,
-- 
-mat