Joe Linoff
2011-Feb-12 17:55 UTC
[Xen-users] xen 3.4.3 on CentOS 5.5 dom0: multiple nic issue -- eth1 won''t restart
Hi Folks:
I have a strange problem with multiple (2) NICs on a CentOS 5.5 dom0
setup running xen 3.4.3 and have been struggling to fix it for some
time. I could not find anything by googling or searching through this
list but that is probably because I couldn''t figure out the correct
search terms.
After I configure my bridges the command "system network restart"
fails
for eth1 but xenbr1 shows up correctly and everything seems to work: my
dom0 and domUs can see the network.
Here is the error message:
dom0 # service network restart
Shutting down interface eth0: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: [ OK ]
Bringing up interface eth1: bnx2 device eth1 does not seem to be
present, delaying initialization.
[FAILED]
How can I get rid of the error message? My guess is that I am doing
something wrong but I can''t figure out what it is.
Any help would be greatly appreciated.
Here is the ifconfig output. As you can see xenbr1 is there but it
contains the "inet addr" and HWaddr" I would expect to see on
eth1. Is
that okay? I assumed it was because everything works but its existence
means that eth1 doesn''t exist.
dom 0 # ifconfig
eth0 Link encap:Ethernet HWaddr A4:BA:DB:09:7A:B3
inet addr:172.16.45.22 Bcast:172.16.45.255
Mask:255.255.255.0
inet6 addr: fe80::a6ba:dbff:fe09:7ab3/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:63134 errors:0 dropped:0 overruns:0 frame:0
TX packets:42495 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:17957819 (17.1 MiB) TX bytes:10063941 (9.5 MiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:30281 errors:0 dropped:0 overruns:0 frame:0
TX packets:30281 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:8903977 (8.4 MiB) TX bytes:8903977 (8.4 MiB)
peth0 Link encap:Ethernet HWaddr A4:BA:DB:09:7A:B3
inet6 addr: fe80::a6ba:dbff:fe09:7ab3/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1397263 errors:0 dropped:0 overruns:0 frame:0
TX packets:348931 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1989300171 (1.8 GiB) TX bytes:32449801 (30.9 MiB)
Interrupt:25 Memory:da000000-da012800
peth1 Link encap:Ethernet HWaddr A4:BA:DB:09:7A:B4
inet6 addr: fe80::a6ba:dbff:fe09:7ab4/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:508724 errors:0 dropped:0 overruns:0 frame:0
TX packets:43 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:43249113 (41.2 MiB) TX bytes:10196 (9.9 KiB)
Interrupt:26 Memory:dc000000-dc012800
vif3.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:906 errors:0 dropped:0 overruns:0 frame:0
TX packets:1657 errors:0 dropped:22 overruns:0 carrier:0
collisions:0 txqueuelen:32
RX bytes:51014 (49.8 KiB) TX bytes:142082 (138.7 KiB)
vif3.1 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1280 errors:0 dropped:0 overruns:0 frame:0
TX packets:143108 errors:0 dropped:2341 overruns:0 carrier:0
collisions:0 txqueuelen:32
RX bytes:138023 (134.7 KiB) TX bytes:11646832 (11.1 MiB)
virbr0 Link encap:Ethernet HWaddr 00:00:00:00:00:00
inet addr:192.168.122.1 Bcast:192.168.122.255
Mask:255.255.255.0
inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:37 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:6935 (6.7 KiB)
xenbr1 Link encap:Ethernet HWaddr A4:BA:DB:09:7A:B4
inet addr:172.16.44.22 Bcast:0.0.0.0 Mask:255.255.255.0
inet6 addr: fe80::a6ba:dbff:fe09:7ab4/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:508604 errors:0 dropped:0 overruns:0 frame:0
TX packets:27 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:34079662 (32.5 MiB) TX bytes:6336 (6.1 KiB)
I setup the multiple NICs support as follows:
dom0 # mv /etc/xen/scripts/network-bridge{,-xen}
dom0 # # create new network-bridge file
dom0 # cat /etc/xen/scripts/network-bridge
#!/bin/sh
# Exit if anything goes wrong.
set -e
# First arg is the operation.
OP=$1
shift
script=/etc/xen/scripts/network-bridge-xen
case ${OP} in
start)
$script start vifnum=0 bridge=xenbr0 netdev=eth0
$script start vifnum=1 bridge=xenbr1 netdev=eth1
# $script start vifnum=2 bridge=xenbri netdev=dummy0
;;
stop)
$script stop vifnum=0 bridge=xenbr0 netdev=eth0
$script stop vifnum=1 bridge=xenbr1 netdev=eth1
# $script stop vifnum=2 bridge=xenbri netdev=dummy0
;;
status)
$script status vifnum=0 bridge=xenbr0 netdev=eth0
$script status vifnum=1 bridge=xenbr1 netdev=eth1
# $script status vifnum=2 bridge=xenbri netdev=dummy0
;;
*)
echo ''Unknown command: '' ${OP}
echo ''Valid commands are: start, stop, status''
exit 1
esac
dom0 # chmod a+x /etc/xen/scripts/network-bridge
dom0 # service xend restart
dom0 # # check ifcfg-eth1
dom0 # cat /etc/sysconfig/network-scripts/ifcfg-eth1
# Broadcom Corporation NetXtreme II BCM5716 Gigabit Ethernet
DEVICE=eth1
HWADDR=A4:BA:DB:09:7A:B4
ONBOOT=yes
BOOTPROTO=none
IPADDR=172.16.44.22
NETMASK=255.255.255.0
TYPE=Ethernet
USERCTL=no
IPV6INIT=no
PEERDNS=yes
HOTPLUG=no
# service network restart
<output snipped -- this is where the error occurred>
Best regards,
Joe
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