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Tested on 6.2-20120106 build, also have this problem: [root@unused admin]# brctl show bridge name bridge id STP enabled interfaces breth0 8000.000000000000 no breth1 8000.00101866c286 no eth1 breth3 8000.000000000000 no [root@unused admin]# ifconfig breth0 Link encap:Ethernet HWaddr 26:2A:3D:23:7F:95 inet6 addr: fe80::242a:3dff:fe23:7f95/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:12 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:2520 (2.4 KiB) breth1 Link encap:Ethernet HWaddr 00:10:18:66:C2:86 inet addr:10.66.105.83 Bcast:10.66.111.255 Mask:255.255.248.0 inet6 addr: fe80::210:18ff:fe66:c286/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:801 errors:0 dropped:0 overruns:0 frame:0 TX packets:221 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:75297 (73.5 KiB) TX bytes:33221 (32.4 KiB) breth3 Link encap:Ethernet HWaddr D2:B4:4E:37:7F:A0 inet6 addr: fe80::d0b4:4eff:fe37:7fa0/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:13 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:2862 (2.7 KiB) eth1 Link encap:Ethernet HWaddr 00:10:18:66:C2:86 inet6 addr: fe80::210:18ff:fe66:c286/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:855 errors:0 dropped:0 overruns:0 frame:0 TX packets:221 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:96645 (94.3 KiB) TX bytes:33697 (32.9 KiB) Interrupt:17 Memory:e4800000-e4ffffff
http://gerrit.ovirt.org/#change,1606
This patch can help: http://gerrit.ovirt.org/#change,3680 The patch removes all configuration files for the NICs and just ifups the selected one. This prevents the creation of weird network setups.
Created attachment 580939 [details] /var/log/message Tested on rhevh-6.3-20120426.2 build, the patch is good to remove all existed network files and to create new network files, but there are still two things need to handle: 1. It takes too long time (about 5 seconds) to detect the existed network info and pop up the sub page. 2. After reconfigure the other nic, it's not up. it seems due to dhclient is already running according to /var/log/message: dhclient[22242]: dhclient(18827) is already running - exiting.
Technical note added. If any revisions are required, please edit the "Technical Notes" field accordingly. All revisions will be proofread by the Engineering Content Services team. New Contents: Previously, when re-configuring the network, the previous configuration would not be cleaned up correctly. Now, the previous network scripts are completely cleaned up prior to applying new changes.
Technical note updated. If any revisions are required, please edit the "Technical Notes" field accordingly. All revisions will be proofread by the Engineering Content Services team. Diffed Contents: @@ -1 +1 @@ -Previously, when re-configuring the network, the previous configuration would not be cleaned up correctly. Now, the previous network scripts are completely cleaned up prior to applying new changes.+Previously, when re-configuring the Hypervisor's network settomgs, the previous values would not be removed correctly. Now, the previous network configuration values s are completely removed prior to applying new changes.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2012-0741.html