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From SVI <jcapagc...@svi.com.ph>
Subject Cannot provision on newly added hosts due to bridge network not being created
Date Thu, 05 Aug 2021 03:57:37 GMT
Hi,

I followed setting up of KVM hosts on my ubuntu 20.04 and added it as in my cloudstack cluster.
I tried launching an instance but always gets this error in the hypervisor:

 WARN  [resource.wrapper.LibvirtStartCommandWrapper] (agentRequest-Handler-2:null) (logid:3851fa03)
InternalErrorException 
com.cloud.exception.InternalErrorException: Failed to create vnet 225: Error: argument "brenp129s0f1-225"
is wrong: "name" not a valid ifnameCannot find device "brenp129s0f1-225"Failed to create br:
brenp129s0f1-225

Bridging seems ok based on the guide I followed. Here’s my /etc/network/interfaces:

auto lo
iface lo inet loopback
# The primary network interface
auto enp129s0f0
iface enp129s0f0 inet manual
# The second network interface
auto enp129s0f1
iface enp129s0f1 inet manual
# management network
auto cloudbr0
iface cloudbr0 inet static
    bridge_ports enp129s0f0
    bridge_fd 5
    bridge_stp off
    bridge_maxwait 1
    address 192.168.1.120
    netmask 255.255.255.0
    gateway 192.168.1.1
    dns-nameservers 8.8.8.8 8.8.4.4
    dns-domain dev.cloudstack.io
# guest network
auto cloudbr1
iface cloudbr1 inet manual
    bridge_ports enp129s0f1
    bridge_fd 5
    bridge_stp off
    bridge_maxwait 1

Help is very much appreciated.

Btw, this is almost the same configuration as my other 2 hypervisors and everything works
fine on the other 2.

Here’s the ip a:

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: enp129s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master cloudbr0 state
UP group default qlen 1000
    link/ether ac:1f:6b:25:87:c2 brd ff:ff:ff:ff:ff:ff
3: enp129s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master cloudbr1 state
UP group default qlen 1000
    link/ether ac:1f:6b:25:87:c3 brd ff:ff:ff:ff:ff:ff
4: ens3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 00:02:c9:54:3a:94 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 ac:1f:6b:25:87:c2 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.120/24 brd 192.168.1.255 scope global cloudbr0
       valid_lft forever preferred_lft forever
    inet6 fe80::ae1f:6bff:fe25:87c2/64 scope link 
       valid_lft forever preferred_lft forever
6: cloudbr1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group
default qlen 1000
    link/ether ac:1f:6b:25:87:c3 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::ae1f:6bff:fe25:87c3/64 scope link 
       valid_lft forever preferred_lft forever
7: cloud0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group
default qlen 1000
    link/ether ae:18:19:bc:36:07 brd ff:ff:ff:ff:ff:ff
    inet 169.254.0.1/16 scope global cloud0
       valid_lft forever preferred_lft forever
    inet6 fe80::ac18:19ff:febc:3607/64 scope link 
       valid_lft forever preferred_lft forever
8: enp129s0f1.225@enp129s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP group default qlen 1000
    link/ether ac:1f:6b:25:87:c3 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::ae1f:6bff:fe25:87c3/64 scope link 
       valid_lft forever preferred_lft forever



Thanks.


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