Re: interface metrics?
Re: interface metrics?
- Subject: Re: interface metrics?
- From: "Quinn \"The Eskimo!\"" <email@hidden>
- Date: Fri, 11 Nov 2011 13:40:47 +0000
On 7 Nov 2011, at 19:18, Howard Shere wrote:
> I'd like to display the interface metrics for all of the interfaces on my machine.
I'm not sure what you mean by "interface metrics". From reading the rest of your email I get the impression that you think that each interface has some sort of 'score' value that determines how far up the service order list it is. That's not the case. Mac OS X's routing algorithm is quite simple. While there are some edge cases, the gist of it is:
1. If the packet source or destination address is associated with a specific interface, forward it via that interface.
2. If not, forward it via the default interface.
The service order, which you can see and set via the UI, determines the default interface. Specifically, the system choses the default interface by looking for the first interface in that list that is 'up'.
S+E
--
Quinn "The Eskimo!" <http://www.apple.com/developer/>
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
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