It doesn't sound like it's ACS related. With access ports it would definitely not work. Have you created all VLANs in the switch?
Cheers, Alex -----Original Message----- From: Alexandru Stan <alexandru.s...@lifeincloud.com.INVALID> Sent: Wednesday, July 24, 2024 2:47 PM To: users@cloudstack.apache.org Subject: RE: No network if VR and VM are on different hosts Hi Wei, They were. I even tried with plain, access ports, and only one interface on the host bridge, it's the same issue, the cloud0 bridge does not come up, it's either down or unknown. I really don't know where to go from here, never had this issue while testing and I did like 1000 installations on identical hardware, same host os. The only difference that I can think of is the ACS version, in testing I used 4.19.0 and now 4.19.1, but I don't think this is relevant since it doesn't seem like other users experienced this issue. Alex -----Original Message----- From: Wei ZHOU <ustcweiz...@gmail.com> Sent: Wednesday, July 24, 2024 1:27 AM To: users@cloudstack.apache.org Subject: Re: No network if VR and VM are on different hosts Hi, This seems to be a very typical issue for cloud platforms. The switch ports need to be configured as trunk mode. -Wei On Tuesday, July 23, 2024, Alexandru Stan <alexandru.s...@lifeincloud.com.invalid> wrote: > Hello. I am dealing with a weird networking issue that I never > experienced before and I really can't find anything relevant in logs > or else. The setup is like this: > > * Kvm hosts with 2 slave interfaces (for redundancy) under a master > bridge called br0 > * The 2 interfaces are connected to 2 stacked Cisco switches > * Traffic for management, guest, public, etc. goes through this bridge > only > * ACS zone added with advanced network, br0 label set on each traffic > type > > Everything seems fine, the system vms are up & running, hosts are > added without issues, etc. The cloud0 bridge is created on each host > as it should. Now, if I add a vm on a certain host and the virtual > router (simple, isolated network) is on the same host, everything > works fine, the vm gets its own ip, dns, internet conectivity, etc. > But if I add a vm to a different host than where the VR is hosted, I > don't get any network for the vm. The virtual interfaces are created > on the host but the cloud0 bridge status is either down or unknown. > Could this be related to the hardware setup or it's something ACS related? > > Thank you! >
