netdev - RE: Bridging behavior apparently changed around the Fedora 14 time

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Date:	Mon, 11 Jul 2011 16:08:14 -0500
From:	"Greg Scott" <GregScott@...rasupport.com>
To:	"Stephen Hemminger" <shemminger@...tta.com>
Cc:	<netdev@...r.kernel.org>,
	"Lynn Hanson" <LynnHanson@...anhills.org>,
	"Joe Whalen" <JoeWhalen@...anhills.org>
Subject: RE: Bridging behavior apparently changed around the Fedora 14 time

> What about console dmesg output.

I should probably turn off all firewall logging so I don't fill the ring
buffer with my log messages in, like, the first couple minutes after a
boot.  :)

> Please retest with a standard upstream kernel (like 2.6.39.2).

That's gonna take a while to put together a whole test environment with
the latest kernel.org kernel.

> The bridge itself puts the device into promiscuous mode already.

Uhmmmm - no it didn't.  Remember, I put br0 into promiscuous mode myself
by hand - take a look at this.  Note eth0 and eth1 are not in
promiscuous mode.  I wonder how it would behave if I put the physical
devices into promiscuous mode and left br0 alone?  This I can easily
test during off hours.  

[root@...c-fw2011 gregs]# ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state
DOWN qlen 1000
    link/ether 00:0e:7f:2d:d0:6e brd ff:ff:ff:ff:ff:ff
3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
state UP qlen 1000
    link/ether 00:03:47:3a:59:79 brd ff:ff:ff:ff:ff:ff
4: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
state UP qlen 1000
    link/ether 00:0d:88:31:d8:24 brd ff:ff:ff:ff:ff:ff
5: br0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc prio
state UNKNOWN
    link/ether 00:03:47:3a:59:79 brd ff:ff:ff:ff:ff:ff
[root@...c-fw2011 gregs]#
  
- Greg

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