how to figure out which device a given IFB is connected to
From: Sebastian Moeller <hidden>
Date: 2014-09-15 14:37:31
Hi All, I hope I am directing this to the correct mailing list, otherwise please excuse the distraction… I am trying to figure out a way to semi-automatically manage a set of IFB devices for a number of network interfaces. Currently I have no problem finding out if a given “real” interfaces is connected to an IFB: root@nacktmulle:~# tc -s filter show parent ffff: dev ge00 filter protocol all pref 10 u32 filter protocol all pref 10 u32 fh 800: ht divisor 1 filter protocol all pref 10 u32 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:1 match 00000000/00000000 at 0 action order 1: mirred (Egress Redirect to device ifb1) stolen index 47 ref 1 bind 1 installed 521 sec used 3 sec I am looking for a way of doing the reverse,i.e. figuring out for a given IFB if it is “connected” to a real interface and, if yes, which interface. Basically, I want to recycle unused IFBs, but want to make sure that they really are unused… Thanks in advance Sebastian Moeller