> Source: [sk61922](https://support.checkpoint.com/results/sk/sk61922)

# sk61922 - Excessive RX Errors / RX Drops found on interface 

| Property | Value |
|----------|-------|
| Solution ID | sk61922 |
| Date Created | 2011-05-25 |
| Last Modified | 2023-03-22 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R81.20, R81.10 (EOS), R81 (EOS) |
| OS | Gaia |

## Symptoms

- * Output of "`ifconfig -a`" shows excessive RX errors.

* Output of "`ethtool -S `*interface_name*" command shows positive values in the following counters:

  * `rx_errors`
  * `rx_length_errors`
  * `rx_crc_errors`
  * `rx_frame_errors`
  * `rx_no_buffer_count`
  * `rx_align_errors`
* Output of "`top`" command shows high SoftIRQ.

## Cause

RX Error counters are incremented by frames received by the NIC that are corrupted in some way:

* Possible duplex mismatch on both interfaces of the link.
* Faulty NIC, cable, physical media issue.
* CRC failures.

In addition, NIC speed / duplex mis-match with the connecting port on the switch/router might be the cause.

## Solution

This solution requires authentication. Please log in to view the full solution.

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