Thread resurrection!
I am also trying to setup a bridge with a bonded interface and a VLAN. Once I add the bridge, the networking stops working... Any advice?
bond0 Link encap:Ethernet HWaddr 00:1E:4F

C:5C:91
inet6 addr: fe80::21e:4fff:fedc:5c91/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
RX packets:3472769 errors:0 dropped:633 overruns:0 frame:0
TX packets:1152061 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4597937190 (4.2 GiB) TX bytes:108371241 (103.3 MiB)
bond0.40 Link encap:Ethernet HWaddr 00:1E:4F

C:5C:91
inet addr:10.81.39.242 Bcast:10.81.39.255 Mask:255.255.248.0
inet6 addr: fc44:53f9:cb30:40::27f2/64 Scope:Global
inet6 addr: fc44:53f9:cb30:40:21e:4fff:fedc:5c91/64 Scope:Global
inet6 addr: fe80::21e:4fff:fedc:5c91/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1355341 errors:0 dropped:18 overruns:0 frame:0
TX packets:1150638 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4411396310 (4.1 GiB) TX bytes:99025270 (94.4 MiB)
em1 Link encap:Ethernet HWaddr 00:1E:4F

C:5C:91
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:2954972 errors:0 dropped:7 overruns:0 frame:0
TX packets:1147411 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4246493429 (3.9 GiB) TX bytes:107860986 (102.8 MiB)
Interrupt:16
p3p1 Link encap:Ethernet HWaddr 00:1E:4F

C:5C:91
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:517797 errors:0 dropped:6 overruns:0 frame:0
TX packets:4650 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:351443761 (335.1 MiB) TX bytes:510255 (498.2 KiB)
Interrupt:16 Memory:fd7e0000-fd800000
2: em1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP qlen 1000
link/ether 00:1e:4f:dc:5c:91 brd ff:ff:ff:ff:ff:ff
3: p3p1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 state UP qlen 1000
link/ether 00:1e:4f:dc:5c:91 brd ff:ff:ff:ff:ff:ff
5: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 00:1e:4f:dc:5c:91 brd ff:ff:ff:ff:ff:ff
inet6 fe80::21e:4fff:fedc:5c91/64 scope link
valid_lft forever preferred_lft forever
6: bond0.40@bond0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 00:1e:4f:dc:5c:91 brd ff:ff:ff:ff:ff:ff
inet 10.81.39.242/21 brd 10.81.39.255 scope global bond0.40
inet6 fc44:53f9:cb30:40:21e:4fff:fedc:5c91/64 scope global dynamic
valid_lft 944sec preferred_lft 744sec
inet6 fc44:53f9:cb30:40::27f2/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::21e:4fff:fedc:5c91/64 scope link
valid_lft forever preferred_lft forever