From: Patrick McHardy [mailto:kaber@trash.net]
Sent: Thursday, November 19, 2009 10:59 AM

[snip]

One argument would be that "ip link show" should probably display
all filters, so they all need to be included in the dump message.

And this is exactly the same message type used for configuring
links and the API is supposed to be symetric, meaning you can
send a dump message with NLM_F_REQUEST to the kernel again and
it (re-)creates the same object.

Yeah, we've indentified that as a need - that's one reason we sent this out as an RFC. I'll implement the "show" semantics before we repost.

-Mitch