KVM host in Alert State with Alert message Can not find network

[amitmvyas]

ISSUE TYPE

• Other

COMPONENT NAME

UI

CLOUDSTACK VERSION

4.19.1.1

CONFIGURATION

Advance Network with following configuration.

1. 2 x 100G in Bond name "server_bond0"
2. 2 x 100G in Bond name "storage_bond0"
3. 1 x 1G Management NIC
4. server_bond0 is a trunk port with passing multiple VLANs
5. storage_bond0 is in access VLAN
6. below is the output of "brctl show"
   bridge name bridge id STP enabled interfaces
   cloud0 8000.3271cbfe51f6 no
   internet_br0 8000.723f8add10ca no internet4090
   management_br0 8000.624ab6643d88 no enp33s0f0
   storage_br0 8000.8a237b1368be no storage18

OS / ENVIRONMENT

Ubuntu 22.04.4 LTS and 24.04.4 LTS

SUMMARY

While creating the Zone at Step No.4 -> Physical Network, I am providing following information.

1. Traffic types
2. Guest -> keeping it blank
3. Management -> management_br0
4. Public -> internet_br0
5. Storage -> internet_br0
   

STEPS TO REPRODUCE

I feel using the same kind of config you may be able to reproduce the problem.

EXPECTED RESULTS

Host should get added without any error message.

ACTUAL RESULTS

Getting below error message and host goes in to **Alert** state.
Incorrect Network setup on agent, Reinitialize agent after network names are setup, details : Can not find network: internet_br0

[boring-cyborg[bot]]

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[alexandremattioli]

@amitmvyas can you paste your netplan config here please?

[amitmvyas]

Below is the netplan config details

network:
version: 2
renderer: networkd
ethernets:
enp33s0f0:
dhcp4: false
enp33s0f1:
dhcp4: false
enp193s0f0np0:
dhcp4: false
mtu: 9124
enp193s0f1np1:
dhcp4: false
enp65s0f0np0:
dhcp4: false
mtu: 9124
enp65s0f1np1:
dhcp4: false
mtu: 9124
bonds:
server_bond0:
interfaces: [enp193s0f0np0, enp65s0f0np0]
mtu: 9124
parameters:
mode: 802.3ad
transmit-hash-policy: layer3+4
lacp-rate: fast
mii-monitor-interval: 100
storage_bond0:
interfaces: [enp193s0f1np1, enp65s0f1np1]
mtu: 9124
parameters:
mode: 802.3ad
transmit-hash-policy: layer3+4
lacp-rate: fast
mii-monitor-interval: 100
vlans:
internet4090:
id: 4090
link: server_bond0
storage18:
id: 18
link: storage_bond0
bridges:
management_br0:
interfaces: [enp33s0f0]
dhcp4: true
cloud_br0:
interfaces: [internet4090]
addresses: [xxx.xxx.xxx.xxx/23]
storage_br0:
interfaces: [storage18]
addresses: [xxx.xxx.xxx.xxx/24]

[amitmvyas]

Please read cloud_br0 as internet_br0.

[alexandremattioli]

Guest -> keeping it blank_
This can't be kept blank, otherwise ACS won't know in which bridge to place your guest network VLANs
Management -> management_br0
Public -> internet_br0
Those should be fine
Storage -> internet_br0
Did you mean "storage_br0" ?

[amitmvyas]

Hi,
Yes, its storage_br0 and not internet_br0.

I would like to know, do I have create new brdige for guest or I can use any existing one ?

[amitmvyas]

While configuring the zone I am following below steps.

1. Zone Type - Core
2. Core Zone Type - Advance (Security groups is - Off)
3. Zone Details - any name, IPv4 DNS: 8.8.8.8, Internal DNS, 192.168.1.53, Hypervisor: KVM
4. Network -
   a. Network Name - Physical Network 1
   b. Isolation method - VLAN
   c. Traffic Types - Guest (guest_br0), Management (management_br0), Public (internet_br0), Storage (storage_br0)

Rest of the steps are standard, once I click on launh zone, I am getting the message "Incorrect Network setup on agent, Reinitialize agent after network names are setup, details : Can not find network: guest_br0"