Hector-Work commented on issue #8810:
URL: https://github.com/apache/cloudstack/issues/8810#issuecomment-2009952459
@weizhouapache , yes both hosts have a physical interface called `enp1s0`.
I have actually just managed to solve this issue by renaming the `cloudbr0`
interface on Host 2 to `cloudbr1`. I updated the
`/etc/cloudstack/agent/agent.properties` so that all the network device
properties are pointing at `cloudbr1` as well. Finally I restarted the agents
on both hosts.
I don't know why this worked, but maybe it will help someone else in the
future. Here is the output of `ip a` now that it's working for reference:
Host 1:
```
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: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master
cloudbr0 state UP group default qlen 1000
link/ether e0:4f:43:e6:ad:b1 brd ff:ff:ff:ff:ff:ff
3: cloudbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
UP group default qlen 1000
link/ether 3e:4a:81:c4:28:5b brd ff:ff:ff:ff:ff:ff
inet 192.168.100.1/24 brd 192.168.100.255 scope global noprefixroute
cloudbr0
valid_lft forever preferred_lft forever
inet6 fe80::3c4a:81ff:fec4:285b/64 scope link
valid_lft forever preferred_lft forever
4: cloud0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
group default qlen 1000
link/ether 56:f1:92:d7:a5:f2 brd ff:ff:ff:ff:ff:ff
inet 169.254.0.1/16 scope global cloud0
valid_lft forever preferred_lft forever
inet6 fe80::54f1:92ff:fed7:a5f2/64 scope link
valid_lft forever preferred_lft forever
5: vnet1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master
cloud0 state UNKNOWN group default qlen 1000
link/ether fe:00:a9:fe:76:10 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc00:a9ff:fefe:7610/64 scope link
valid_lft forever preferred_lft forever
6: vnet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master
cloud0 state UNKNOWN group default qlen 1000
link/ether fe:00:a9:fe:a0:9a brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc00:a9ff:fefe:a09a/64 scope link
valid_lft forever preferred_lft forever
7: vnet3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master
cloudbr0 state UNKNOWN group default qlen 1000
link/ether fe:00:a0:00:00:08 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc00:a0ff:fe00:8/64 scope link
valid_lft forever preferred_lft forever
8: vnet2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master
cloudbr0 state UNKNOWN group default qlen 1000
link/ether fe:00:52:00:00:09 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc00:52ff:fe00:9/64 scope link
valid_lft forever preferred_lft forever
9: vnet4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master
cloudbr0 state UNKNOWN group default qlen 1000
link/ether fe:00:e5:00:00:0a brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc00:e5ff:fe00:a/64 scope link
valid_lft forever preferred_lft forever
10: vnet5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master
cloudbr0 state UNKNOWN group default qlen 1000
link/ether fe:00:6f:00:00:0b brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc00:6fff:fe00:b/64 scope link
valid_lft forever preferred_lft forever
11: vnet6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master
cloudbr0 state UNKNOWN group default qlen 1000
link/ether fe:00:ed:00:00:13 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc00:edff:fe00:13/64 scope link
valid_lft forever preferred_lft forever
12: enp1s0.15@enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue master brenp1s0-15 state UP group default qlen 1000
link/ether e0:4f:43:e6:ad:b1 brd ff:ff:ff:ff:ff:ff
13: brenp1s0-15: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP group default qlen 1000
link/ether 52:43:fa:5a:86:92 brd ff:ff:ff:ff:ff:ff
14: vnet7: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc htb master
brenp1s0-15 state UNKNOWN group default qlen 1000
link/ether fe:01:00:dc:00:11 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc01:ff:fedc:11/64 scope link
valid_lft forever preferred_lft forever
15: vnet8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master
cloud0 state UNKNOWN group default qlen 1000
link/ether fe:00:a9:fe:34:c2 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc00:a9ff:fefe:34c2/64 scope link
valid_lft forever preferred_lft forever
16: vnet9: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc htb master
cloudbr0 state UNKNOWN group default qlen 1000
link/ether fe:00:de:00:00:17 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc00:deff:fe00:17/64 scope link
valid_lft forever preferred_lft forever
17: vnet10: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc htb master
brenp1s0-15 state UNKNOWN group default qlen 1000
link/ether fe:01:00:dc:00:0e brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc01:ff:fedc:e/64 scope link
valid_lft forever preferred_lft forever
18: vnet11: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc htb master
brenp1s0-15 state UNKNOWN group default qlen 1000
link/ether fe:01:00:dc:00:10 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc01:ff:fedc:10/64 scope link
valid_lft forever preferred_lft forever
19: vnet12: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc htb master
brenp1s0-15 state UNKNOWN group default qlen 1000
link/ether fe:01:00:dc:00:01 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc01:ff:fedc:1/64 scope link
valid_lft forever preferred_lft forever
20: vnet13: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc htb master
brenp1s0-15 state UNKNOWN group default qlen 1000
link/ether fe:01:00:dc:00:0c brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc01:ff:fedc:c/64 scope link
valid_lft forever preferred_lft forever
21: vnet14: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc htb master
brenp1s0-15 state UNKNOWN group default qlen 1000
link/ether fe:01:00:dc:00:05 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc01:ff:fedc:5/64 scope link
valid_lft forever preferred_lft forever
```
Host 2:
```
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: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master
cloudbr1 state UP group default qlen 1000
link/ether e0:4f:43:e6:bf:8b brd ff:ff:ff:ff:ff:ff
4: cloud0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state
DOWN group default qlen 1000
link/ether 46:be:6f:11:da:4a brd ff:ff:ff:ff:ff:ff
inet 169.254.0.1/16 scope global cloud0
valid_lft forever preferred_lft forever
inet6 fe80::44be:6fff:fe11:da4a/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 3e:78:5d:32:2c:f8 brd ff:ff:ff:ff:ff:ff
inet 192.168.100.2/24 brd 192.168.100.255 scope global noprefixroute
cloudbr1
valid_lft forever preferred_lft forever
inet6 fe80::3c78:5dff:fe32:2cf8/64 scope link
valid_lft forever preferred_lft forever
```
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