RE: Bug? TCP shutdown behaviour when deleting local IP addresses

On Thu, 18 Oct 2012, David Laight wrote:

Doing that is almost pointless and gives people false expectations.

Consider the simple network host-hub-hub-host.
If you disconnect the link between the two hubs then
only timeouts can cause disconnects.
Such a remote fault is much more likely than the local one.

My doing suspect/resume on my laptop causes more network interruptions than any link going down in the network outside my home.

If the kernel takes down connections when a local interface
goes down (as windows does) then people doing testing
fail to test the correct scenario.

I never asked for the kernel to take down connections, I asked for the connection manager to be able to do it.

You also don't want a power glitch in the wiring cupboard to disconnect all your connections.

In a server environment, most likely you're right. In some other environment, the opposite probably applies.

In the past I've also moved IP addresses between physical
interfaces - modern HA systems might do the same.

Yes, in your described scenario you're right, in my scenario (laptop suspend/resume) I don't agree with your view.

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se