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Date:	Mon, 22 Apr 2013 02:03:50 +0300
From:	Denys Fedoryshchenko <denys@...p.net.lb>
To:	<netdev@...r.kernel.org>, Stephen Hemminger <shemminger@...tta.com>
Subject: tc class replace doesn't change parent?

Hi

Just got probably bug, or maybe undocumented feature, that is easy to 
reproduce:

core7 ~ # tc qdisc replace dev eth0 root handle 1: htb
core7 ~ # tc class add dev eth0 classid 1:1 parent 1: htb rate 1Mbit 
ceil 1Mbit
core7 ~ # tc class show dev eth0
class htb 1:1 root prio 0 rate 1000Kbit ceil 1000Kbit burst 1600b 
cburst 1600b
core7 ~ # tc class replace dev eth0 classid 1:1 parent 1:2 htb rate 
1Mbit ceil 1Mbit
core7 ~ # tc class show dev eth0
class htb 1:1 root prio 0 rate 1000Kbit ceil 1000Kbit burst 1600b 
cburst 1600b

Note: parent didn't changed, while it should be changed, i think, since 
operation is not change, it is replace.

---
Denys Fedoryshchenko, Network Engineer, Virtual ISP S.A.L.
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