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Diffstat (limited to 'health/guides/wifi')
| -rw-r--r-- | health/guides/wifi/wifi_inbound_packets_dropped_ratio.md | 52 | ||||
| -rw-r--r-- | health/guides/wifi/wifi_outbound_packets_dropped_ratio.md | 54 |
2 files changed, 0 insertions, 106 deletions
diff --git a/health/guides/wifi/wifi_inbound_packets_dropped_ratio.md b/health/guides/wifi/wifi_inbound_packets_dropped_ratio.md deleted file mode 100644 index ce26c1e5e..000000000 --- a/health/guides/wifi/wifi_inbound_packets_dropped_ratio.md +++ /dev/null @@ -1,52 +0,0 @@ -### 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.
\ No newline at end of file diff --git a/health/guides/wifi/wifi_outbound_packets_dropped_ratio.md b/health/guides/wifi/wifi_outbound_packets_dropped_ratio.md deleted file mode 100644 index 8441885df..000000000 --- a/health/guides/wifi/wifi_outbound_packets_dropped_ratio.md +++ /dev/null @@ -1,54 +0,0 @@ -### 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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