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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-06-30 12:34:26 +0000 |
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| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-06-30 12:35:44 +0000 |
| commit | 25f8033d556aa17afaea4a5196ea7a69fe248320 (patch) | |
| tree | 0f056db167683be54ea1e5e72d29d6069af55e7d /results/classifier/deepseek-2-tmp/reasoning/network/785668 | |
| parent | 8e6da29e4ee5fc14bc1cc816a24f21271f14090d (diff) | |
| download | qemu-analysis-25f8033d556aa17afaea4a5196ea7a69fe248320.tar.gz qemu-analysis-25f8033d556aa17afaea4a5196ea7a69fe248320.zip | |
add new temporary deepseek-r1:14b results
Diffstat (limited to 'results/classifier/deepseek-2-tmp/reasoning/network/785668')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/reasoning/network/785668 | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2-tmp/reasoning/network/785668 b/results/classifier/deepseek-2-tmp/reasoning/network/785668 new file mode 100644 index 000000000..86f2b67fe --- /dev/null +++ b/results/classifier/deepseek-2-tmp/reasoning/network/785668 @@ -0,0 +1,62 @@ +<think> +Okay, so I'm trying to figure out why the VM isn't pinging the remote bridged network system properly. Let's see what information is provided. + +First, looking at the ping results from the VM (10.153.107.92) to 10.153.107.80: it works with 0% packet loss, so maybe that's not an issue. But I notice that in the arp -an outputs, on the KVMhost, only 10.153.107.80 is listed with a MAC address on br0. On the VM itself, when it tries to ping, one of the entries shows (10.153.107.61) at incomplete on eth0. That might be a problem because if the ARP entry is incomplete, the VM doesn't know how to reach that IP address. + +Wait, but in Test #3, when pinging from VM to 10.153.107.80, it worked. So maybe the issue isn't with the bridged network itself, but perhaps something else. The user mentioned a workaround using active-backup mode on the bonded device. Maybe the current setup is in another mode that's causing issues. + +Looking at the packages and kernel version: Ubuntu 10.04.02 with qemu-kvm-0.12.3. That's an older version, so perhaps there are known bugs or compatibility issues. The bonding driver might not be handling the modes correctly on this setup. + +Another thought: Maybe the bridge configuration is causing problems. If br0 is set up incorrectly, it could prevent proper communication between VMs and external networks. I should check if the bridge interface is properly configured to allow traffic through. + +Also, looking at the ARP tables, on KVMhost only 10.153.107.80 is listed with a MAC, but from the remote system, it also shows 10.153.107.92 correctly. On the VM, when pinging 10.153.107.80, it sees that address and its MAC on eth0, which seems correct. + +Wait, in Test #3's VM arp -an, there's an entry for 10.153.107.61 with incomplete. Maybe the VM is trying to reach another IP (maybe its own?) but can't resolve it. That could be a separate issue or maybe related to the network setup. + +The user suggested switching to active-backup mode as a workaround, so perhaps the current mode isn't handling failover correctly. If using active-backup, only one link is used at a time, which might resolve issues with how traffic is routed through the bond. + +I should also consider if there are any firewall rules or network policies blocking certain traffic. But since pings are working, maybe it's not a firewall issue. + +To sum up, possible causes could be: +1. Incorrect bonding mode configuration. +2. Bridge setup problems on KVMhost. +3. ARP resolution issues within the VM or host. + +The suggested workaround is to switch to active-backup mode, which might fix the problem if it's related to how traffic is being handled across multiple links in the bond. +</think> + +To resolve the issue with network communication between the virtual machine and the bridged network system, we can try switching the bonding mode to "active-backup." This mode ensures that only one link is used at a time, which might fix any issues related to how traffic is routed through the bond. + +**Step-by-Step Solution:** + +1. **Identify Bonding Configuration File:** + - Locate the bonding configuration file, typically found in `/etc/modprobe.d/bonding.conf` or by checking your distribution's specific location. + +2. **Modify Bonding Mode to Active-Backup:** + - Edit the bonding configuration file to set the default mode to active-backup. + ```bash + alias bond-type bond0=active-backup + ``` + +3. **Reconfigure Network Interfaces:** + - Update your network interface configuration (e.g., `/etc/network/interfaces`) to use the new bonding settings, ensuring that only one link is active at a time. + +4. **Restart Networking Services:** + - After updating configurations, restart the networking services to apply the changes. + ```bash + sudo /etc/init.d/networking restart + ``` + +5. **Test Network Communication:** + - From the VM, attempt to ping the remote bridged network system again to check if communication has been established. + +6. **Verify ARP Tables and Traffic:** + - Check the ARP tables on both the KVM host and the VM to ensure that all necessary IP-MAC mappings are correctly resolved. + ```bash + arp -an + ``` + +7. **Monitor Network Performance:** + - If issues persist, monitor network traffic and bonding status to ensure that the active-backup mode is functioning as expected. + +By switching to the active-backup mode, we can test if this resolves the communication issue, allowing proper network traffic flow between the VM and the external network. \ No newline at end of file |