Error creating VLAN

[miloserdoff]

ISSUE TYPE

• Other

COMPONENT NAME

VLAN

CLOUDSTACK VERSION

4.18.2.4

CONFIGURATION

OS / ENVIRONMENT

SUMMARY

STEPS TO REPRODUCE

EXPECTED RESULTS

ACTUAL RESULTS

When creating a VM from a disk image, Cloudstack cannot create a VLAN

2024-11-08 06:44:20,824 WARN [resource.wrapper.LibvirtStartCommandWrapper] (agentRequest-Handler-5:null) (logid:d046b384) InternalErrorException
com.cloud.exception.InternalErrorException: Failed to create vnet 803

[boring-cyborg]

Thanks for opening your first issue here! Be sure to follow the issue template!

[DaanHoogland]

@miloserdoff can you add some more information, please?

What ui-function or API are you using? Did you convert a disk image to a template or upload a template, etc?

Do you see just this WARN message or are there more relevant log messages?
.
thanks,

[weizhouapache]

@miloserdoff
can you share the full agent.log around it ?

[miloserdoff]

@weizhouapache @DaanHoogland

Thanks for the reply. I'm using a pre-built CentOS image, but it's not the image itself.

My Cloudstack Agent log file is throwing an error, as I understand it, when trying to create a virtual router.

2024-11-08 08:34:24,675 WARN [resource.wrapper.LibvirtStartCommandWrapper] (agentRequest-Handler-1:null) (logid:cbb2042c) InternalErrorException
com.cloud.exception.InternalErrorException: Failed to create vnet 761: Error: argument "enp129s0f1np1.761" is wrong: "name" not a valid ifname/usr/share/cloudstack-common/scripts/vm/network/vnet/modifyvlan.sh: line 37: /proc/sys/net/ipv6
/conf/enp129s0f1np1.761/disable_ipv6: No such file or directoryCannot find device "enp129s0f1np1.761"Failed to create vlan 761 on pif: enp129s0f1np1.
at com.cloud.hypervisor.kvm.resource.BridgeVifDriver.createVnet(BridgeVifDriver.java:320)
at com.cloud.hypervisor.kvm.resource.BridgeVifDriver.createVnetBr(BridgeVifDriver.java:302)
at com.cloud.hypervisor.kvm.resource.BridgeVifDriver.plug(BridgeVifDriver.java:222)
at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.createVif(LibvirtComputingResource.java:3277)
at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.createVifs(LibvirtComputingResource.java:2891)
at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtStartCommandWrapper.execute(LibvirtStartCommandWrapper.java:84)
at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtStartCommandWrapper.execute(LibvirtStartCommandWrapper.java:49)
at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtRequestWrapper.execute(LibvirtRequestWrapper.java:78)
at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.executeRequest(LibvirtComputingResource.java:1869)
at com.cloud.agent.Agent.processRequest(Agent.java:663)
at com.cloud.agent.Agent$AgentRequestHandler.doTask(Agent.java:1086)
at com.cloud.utils.nio.Task.call(Task.java:83)
at com.cloud.utils.nio.Task.call(Task.java:29)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:829)

I also attach the output of the "ip a" command to demonstrate the network configuration

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enxbe3af2b6059f: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether be:3a:f2:b6:05:9f brd ff:ff:ff:ff:ff:ff
3: enp129s0f0np0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 7c:c2:55:32:00:90 brd ff:ff:ff:ff:ff:ff
4: enp129s0f1np1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master cloudbr0 state UP group default qlen 1000
link/ether 7c:c2:55:32:00:91 brd ff:ff:ff:ff:ff:ff
5: cloudbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 42:c1:eb:1f:33:33 brd ff:ff:ff:ff:ff:ff
inet 192.168.127.57/24 brd 192.168.127.255 scope global cloudbr0
valid_lft forever preferred_lft forever
inet6 fe80::40c1:ebff:fe1f:3333/64 scope link
valid_lft forever preferred_lft forever
6: cloud0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 82:8d:f9:c3:b0:e0 brd ff:ff:ff:ff:ff:ff
inet 169.254.0.1/16 scope global cloud0
valid_lft forever preferred_lft forever
inet6 fe80::808d:f9ff:fec3:b0e0/64 scope link
valid_lft forever preferred_lft forever
8: vnet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master cloud0 state UNKNOWN group default qlen 1000
link/ether fe:00:a9:fe:ec:24 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc00:a9ff:fefe:ec24/64 scope link
valid_lft forever preferred_lft forever
10: vnet3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master cloudbr0 state UNKNOWN group default qlen 1000
link/ether fe:00:91:00:00:06 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc00:91ff:fe00:6/64 scope link
valid_lft forever preferred_lft forever
11: vnet5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master cloudbr0 state UNKNOWN group default qlen 1000
link/ether fe:00:b6:00:00:0c brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc00:b6ff:fe00:c/64 scope link
valid_lft forever preferred_lft forever
13: vnet6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master cloud0 state UNKNOWN group default qlen 1000
link/ether fe:00:a9:fe:3f:52 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc00:a9ff:fefe:3f52/64 scope link
valid_lft forever preferred_lft forever

[rajujith]

@miloserdoff Could you try changing the interface names to enp1, enx0 ?

[miloserdoff]

@rajujith Hello. I changed the interface names and decided to look at the Cloudstack Agent log. It gave me an error:

com.cloud.exception.InternalErrorException: Failed to create vnet 805: Cannot find device "br-805" /usr/share/cloudstack-common/scripts/vm/network/vnet/modifyvlan.sh: line 37: /proc/sys/net/ipv6/conf/br-805.805/disable_ipv6: No such file or directory Cannot find device "br-805.805" Failed to create vlan 805 on pif: br-805.

[rajujith]

@miloserdoff can you check for any stale bridge configurations on the host and fix them?
Below is an example that works properly :

/usr/share/cloudstack-common/scripts/vm/network/vnet/modifyvlan.sh -v 1556 -p eth1 -b breth1-1556 -o add

the -p should be passed with the physical interface name but in your log, its having a bridge interface.

"Usage: %s: -o <op>(add | delete) -v <vlan id> -p <pif> -b <bridge name> -d <delete bridge>(true | false)\n"

[weizhouapache]

@miloserdoff can you check for any stale bridge configurations on the host and fix them? Below is an example that works properly :

/usr/share/cloudstack-common/scripts/vm/network/vnet/modifyvlan.sh -v 1556 -p eth1 -b breth1-1556 -o add

the -p should be passed with the physical interface name but in your log, its having a bridge interface.

"Usage: %s: -o <op>(add | delete) -v <vlan id> -p <pif> -b <bridge name> -d <delete bridge>(true | false)\n"

maybe there is no physical nic associated to the bridge ?