Paul Edwards created CLOUDSTACK-4690:
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Summary: KVM Router - to many ethernet devices created
Key: CLOUDSTACK-4690
URL: https://issues.apache.org/jira/browse/CLOUDSTACK-4690
Project: CloudStack
Issue Type: Bug
Security Level: Public (Anyone can view this level - this is the default.)
Components: KVM
Affects Versions: 4.1.1
Environment: Centos 6.4
Reporter: Paul Edwards
Priority: Critical
We have setup cloudstack with advanced networking. We have a network created
172.16.24.0/23, called news preprod. This has a number of vms created under it.
When we initially set this up, we noticed that the router we created with 4
ethernet interfaces. This was unexpected, but didn't seem to be effecting the
running of the router, so we didn't worry about it. The interfaces were: eth0
172.16.24.14, eth1 169.254.1.91, and both eth2 and eth2 were given the external
ip (xxx.xxx.245.59). We investigated why we were getting 2 externals, but
couldn't figure it out. We also configured the router to have a redundant, with
keepalived. They were working fine.
Now I needed to add another external ip to the network. Did that, and restarted
the network. I now have 8 (eight) eth interfaces. The new external ip is NOT
one of them. Heres the ifconfig output:
root@r-235-VM:~# ifconfig
eth0 Link encap:Ethernet HWaddr 02:00:68:e1:00:1a
inet addr:172.16.24.14 Bcast:172.16.25.255 Mask:255.255.254.0
inet6 addr: fe80::68ff:fee1:1a/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5485 errors:0 dropped:0 overruns:0 frame:0
TX packets:21101 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:325618 (317.9 KiB) TX bytes:1581746 (1.5 MiB)
eth1 Link encap:Ethernet HWaddr 0e:00:a9:fe:01:5b
inet addr:169.254.1.91 Bcast:169.254.255.255 Mask:255.255.0.0
inet6 addr: fe80::c00:a9ff:fefe:15b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:22118 errors:0 dropped:0 overruns:0 frame:0
TX packets:21148 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3942785 (3.7 MiB) TX bytes:4287970 (4.0 MiB)
eth2 Link encap:Ethernet HWaddr 06:16:06:00:01:03
inet addr:xxx.xxx.245.59 Bcast:xxx.xxx.245.255 Mask:255.255.255.0
inet6 addr: fe80::416:6ff:fe00:103/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:17331 errors:0 dropped:0 overruns:0 frame:0
TX packets:3930 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1063053 (1.0 MiB) TX bytes:234546 (229.0 KiB)
eth3 Link encap:Ethernet HWaddr 06:d7:ec:00:01:03
inet addr:xxx.xxx.245.59 Bcast:xxx.xxx.245.255 Mask:255.255.255.0
inet6 addr: fe80::4d7:ecff:fe00:103/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:13603 errors:0 dropped:0 overruns:0 frame:0
TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:792907 (774.3 KiB) TX bytes:704 (704.0 B)
eth4 Link encap:Ethernet HWaddr 06:8b:5a:00:01:03
inet addr:xxx.xxx.245.59 Bcast:xxx.xxx.245.255 Mask:255.255.255.0
inet6 addr: fe80::48b:5aff:fe00:103/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:13319 errors:0 dropped:0 overruns:0 frame:0
TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:779753 (761.4 KiB) TX bytes:704 (704.0 B)
eth5 Link encap:Ethernet HWaddr 06:7e:68:00:01:03
inet addr:xxx.xxx.245.59 Bcast:xxx.xxx.245.255 Mask:255.255.255.0
inet6 addr: fe80::47e:68ff:fe00:103/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:13080 errors:0 dropped:0 overruns:0 frame:0
TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:762111 (744.2 KiB) TX bytes:704 (704.0 B)
eth6 Link encap:Ethernet HWaddr 06:7e:68:00:01:03
inet addr:xxx.xxx.245.59 Bcast:xxx.xxx.245.255 Mask:255.255.255.0
inet6 addr: fe80::47e:68ff:fe00:103/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:13086 errors:0 dropped:0 overruns:0 frame:0
TX packets:13 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:762655 (744.7 KiB) TX bytes:774 (774.0 B)
eth7 Link encap:Ethernet HWaddr 06:27:a8:00:01:03
inet addr:xxx.xxx.245.59 Bcast:xxx.xxx.245.255 Mask:255.255.255.0
inet6 addr: fe80::427:a8ff:fe00:103/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:13064 errors:0 dropped:0 overruns:0 frame:0
TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:761153 (743.3 KiB) TX bytes:704 (704.0 B)
eth8 Link encap:Ethernet HWaddr 06:27:a8:00:01:03
inet addr:xxx.xxx.245.59 Bcast:xxx.xxx.245.255 Mask:255.255.255.0
inet6 addr: fe80::427:a8ff:fe00:103/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:13043 errors:0 dropped:0 overruns:0 frame:0
TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:759287 (741.4 KiB) TX bytes:704 (704.0 B)
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:6 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:414 (414.0 B) TX bytes:414 (414.0 B)
The cloudstack management browser still shows the router as only supposed to
have 3 nics.
The agent log on the physical host has nothing in it (I was tailing that log
when I did this, as I would have thought that the agent has to create the
devices for the vm to get them).
I have attached the management log from just before to just after. (Time of
change was 9:39am). I do not know why the router timestamp is not the same as
the host.
I have also attached the log of the router restart.
The physical server is Centos 6.4, and all the vms that we have created are
Centos 6.4. KVM is the hypervisor.
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