Adding upstream version 1.44.3.upstream/1.44.3upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

2 files changed, 106 insertions, 0 deletions

diff --git a/health/guides/wifi/wifi_inbound_packets_dropped_ratio.md b/health/guides/wifi/wifi_inbound_packets_dropped_ratio.md
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+### Understand the alert
+
+This alert calculates the ratio of inbound dropped packets for a specific network interface over the last 10 minutes. If you receive this alert, it means that your WiFi network interface dropped a significant number of packets, which could be due to lack of resources or unsupported protocol.
+
+### What does "inbound dropped packets" mean?
+
+In the context of networking, "inbound dropped packets" means that packets were received by the network interface but were not processed. This can happen due to various reasons, including:
+
+1. Insufficient resources (e.g., CPU, memory) to handle the packet.
+2. Unsupported protocol.
+3. Network congestion, leading to packets being dropped.
+4. Hardware or configuration issues.
+
+### Troubleshoot the alert
+
+- Check the system resource utilization
+
+Using the `top` command, check the resource utilization (CPU, memory, and I/O) in your system. High resource usage might indicate that your system is struggling to process the incoming packets.
+
+```
+top
+```
+
+- Inspect network configuration and hardware
+
+1. Check if there are any hardware issues or misconfigurations in your WiFi adapter or network interface. Refer to your hardware's documentation or manufacturer's support for troubleshooting steps.
+ 
+2. Make sure your network device drivers are up-to-date.
+
+- Monitor network traffic
+
+Use the `iftop` command to monitor network traffic on your interface. High network traffic can cause congestion, leading to dropped packets. If you don't have it installed, follow the [installation instructions](https://www.tecmint.com/iftop-linux-network-bandwidth-monitoring-tool/).
+
+```
+sudo iftop -i <interface_name>
+```
+
+- Investigate network protocols
+
+Inbound dropped packets may be caused by unsupported network protocols. Use the `tcpdump` command to examine network traffic for any abnormalities or unknown protocols.
+
+```
+sudo tcpdump -i <interface_name>
+```
+
+### Useful resources
+
+1. [Top 20 Netstat Command Examples in Linux](https://www.tecmint.com/20-netstat-commands-for-linux-network-management/)
+2. [iftop command in Linux to monitor network traffic](https://www.tecmint.com/iftop-linux-network-bandwidth-monitoring-tool/)
+3. [An Overview of Packet Sniffing using Tcpdump](https://www.ubuntupit.com/tcpdump-useful-unix-packet-sniffer-command/)
+
+Remember to replace `<interface_name>` with the actual name of the WiFi network interface causing the alert.
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diff --git a/health/guides/wifi/wifi_outbound_packets_dropped_ratio.md b/health/guides/wifi/wifi_outbound_packets_dropped_ratio.md
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+### Understand the alert
+
+The `wifi_outbound_packets_dropped_ratio` alert indicates that a significant number of packets were dropped on the way to transmission over the last 10 minutes. This could be due to a lack of resources or other issues with the network interface.
+
+### What does dropped packets mean?
+
+Dropped packets refer to data packets that are discarded by a network interface instead of being transmitted through the network. This can occur for various reasons such as hardware failures, lack of resources (e.g., memory, processing power), or network congestion.
+
+### Troubleshoot the alert
+
+1. Check interface statistics
+
+Use the `ifconfig` command to view information about your network interfaces, including their packet drop rates. Look for the dropped packets count in the TX (transmit) section.
+
+```bash
+ifconfig <interface_name>
+```
+
+Replace `<interface_name>` with the name of the network interface you are investigating, such as `wlan0` for a wireless interface.
+
+2. Check system logs
+
+System logs can provide valuable information about any potential issues. Check the logs for any errors or warnings related to the network interface or driver.
+
+For example, use `dmesg` command to display kernel messages:
+
+```bash
+dmesg | grep -i "<interface_name>"
+```
+
+Replace `<interface_name>` with the name of the network interface you are investigating.
+
+3. Check for hardware issues
+
+Inspect the network interface for any signs of hardware failure or malfunction. This may include damaged cables, loose connections, or issues with other networking equipment (e.g. switches, routers).
+
+4. Monitor network congestion
+
+High packet drop rates can be caused by network congestion. Monitor network usage and performance using tools such as `iftop`, `nload`, or `vnstat`. Identify and address any traffic bottlenecks or excessive usage.
+
+5. Update network drivers
+
+Outdated or faulty network drivers may cause packet drop issues. Check for driver updates and install any available updates following the manufacturer's instructions.
+
+6. Optimize network settings
+
+You can adjust network settings, like buffers or queues, to mitigate dropped packets. Consult your operating system or network device documentation for specific recommendations on adjusting these settings.
+
+### Useful resources
+
+1. [ifconfig command in Linux](https://www.geeksforgeeks.org/ifconfig-command-in-linux-with-examples/)
+2. [How to monitor network usage with iftop](https://www.binarytides.com/monitor-network-usage-with-iftop/)
+3. [nload – Monitor Network Traffic and Bandwidth Usage in Real Time](https://www.tecmint.com/nload-monitor-linux-network-traffic-bandwidth-usage/)
+4. [VNstat – A Network Traffic Monitor](https://www.tecmint.com/vnstat-monitor-network-traffic-in-linux/)
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