Re: new ipdelay= option for faster netboot

On Mon, Aug 17, 2009 at 07:45:33PM -0700, david@lang.hm wrote:

On Mon, 17 Aug 2009, Rick Jones wrote:

quoted

David Miller wrote:

quoted

I have card/switch combinations that take up to 10 seconds to
negotiate a proper link.

Gotta love it when things adhere to specs...

the default on Cisco switches is to wait 30 seconds before fully enabling 
the port so that it can listen for spanning tree broadcasts.

And this causes a lot of trouble in high availability environments,
because the link is up but unusable. So if you're using it as a primary
bond link you can lose connectivity for that time. Fortunately, you can
configure the port in "switchport mode access", "portfast" mode to avoid
this annoying delay.

Willy