netdev - loosing connections on bridge topology changes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <4A0AE3A5.20100@hiramoto.org>
Date:	Wed, 13 May 2009 17:13:41 +0200
From:	Karl Hiramoto <karl@...amoto.org>
To:	netdev@...r.kernel.org
Subject: loosing connections on bridge topology changes

Hi,

I have a user space application, that puts eth0 into bridge br0.  At 
this moment all connections seem frozen. Telnet, HTTP, and NFS.

For development i have nfs root fs.

There is a ioctl() that does the equivalent of "brctl addif br0 eth0"

That cuts all the connections for a few seconds.

nfs: server 192.168.10.51 not responding, still trying
br0: topology change detected, propagating           
br0: port 1(eth0) entering forwarding state          
nfs: server 192.168.10.51 not responding, still trying
nfs: server 192.168.10.51 OK                         
nfs: server 192.168.10.51 OK  

Then everything is OK..

Is there anyway i can fix this, so my applicaion goes ahead at full speed?

using libnl i tried flushing the ARP cache on all devices, but it didn't 
seem to help.

Thanks
--

Karl.

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html