> Source: [sk166424](https://support.checkpoint.com/results/sk/sk166424)

# sk166424 - Number of RX packet drops on interfaces increases on a Security Gateway R80.30 and higher with Gaia kernel 3.10

| Property | Value |
|----------|-------|
| Solution ID | sk166424 |
| Date Created | 2020-04-20 |
| Last Modified | 2025-04-06 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20, R81.10 (EOS), R81 (EOS) |
| OS | Gaia |

## Symptoms

- * Output of the "`ifconfig`" command on a Security Gateway R80.30 and higher with Gaia kernel 3.10 shows that the number "`RX packets - dropped`" on interfaces increases.

  Example:


  ![](https://sc1.checkpoint.com/sc/SolutionsStatics/NEW_SK_NOID1619350973060/1202104251509571.png)
* Output of the "`netstat -ni`" command on a Security Gateway R80.30 and higher with Gaia kernel 3.10 shows that the number "`RX-DRP packets`" on interfaces increases.

  Example:


  ![](https://sc1.checkpoint.com/sc/SolutionsStatics/NEW_SK_NOID1619350973060/2202104251510162.png)
* There were no RX packet drops while in the same environment, the same Security Gateway was running R80.20 or lower versions with Gaia kernel 2.6.18.

## Cause

Based on the **expected Linux OS behavior**, various commands in Gaia OS versions from R80.30 to R81 with kernel 3.10 may show RX packet drops on interfaces under these conditions:

* The softnet backlog is full
* Ethernet frames are received with bad VLAN tags
* Packets are received with unknown or unregistered protocols
* IPv6 packets are received while IPv6 is disabled in Gaia
* MTU size mismatch, CRC errors, speed or duplex mismatch

## Solution

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