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When I run ifconfig on my Mac OSX (Yosemite) my Wi-Fi interface (for example) has these flags:
en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
What does the 'SMART' flag refer to? I haven't been able to find this in any man pages.
MacBook Pro (15-inch Late 2011), OS X Yosemite (10.10.2)
If you want information at that level of detail, you have to look at the source code for ifconfig:
http://opensource.apple.com/source/network_cmds/network_cmds-457/ifconfig.tproj/ ifconfig.c
which in turn refers to if.h:
http://www.opensource.apple.com/source/xnu/xnu-792.13.8/bsd/net/if.h
which shows that it refers to the "IFF_NOTRAILERS" bit. The comment reads, "obsolete: avoid use of trailers."
If you want information at that level of detail, you have to look at the source code for ifconfig:
http://opensource.apple.com/source/network_cmds/network_cmds-457/ifconfig.tproj/ ifconfig.c
which in turn refers to if.h:
http://www.opensource.apple.com/source/xnu/xnu-792.13.8/bsd/net/if.h
which shows that it refers to the "IFF_NOTRAILERS" bit. The comment reads, "obsolete: avoid use of trailers."
What does the 'SMART' flag signify for a network interface?
