Forum Discussion
NimbostratusHow can I find out why an interface is discarding packets
Hi All,
My F5 LTM is discarding incoming packets at the rate of about 26M for 10 hours. I have logged into the CLI but it just shows the packets as "dropped". How can I find out if they are CRC errors or overruns or some other kind of reason for the drops ?
Thanks, Dan
5 Replies
Ryan_80361Cirrostratus
Have you checked your switchport's statistics and configuration? Has something in your configuration changed?
BuggaLuggs_2042Hi Ryan, thanks for the reply. No, nothing has changed at the transmit end and it is not showing any drops in its output. It may be something to do with the configuration though. The transmit end is configured as an etherchannel with only 1 member which is configured as a trunk. I am not sure that I have the F5 end setup exactly right. That is where I am looking atm, Regards, Dan
RyannnnnnnnnAltocumulus
Have you checked your switchport's statistics and configuration? Has something in your configuration changed?
- BuggaLuggs_2042Hi Ryan, thanks for the reply. No, nothing has changed at the transmit end and it is not showing any drops in its output. It may be something to do with the configuration though. The transmit end is configured as an etherchannel with only 1 member which is configured as a trunk. I am not sure that I have the F5 end setup exactly right. That is where I am looking atm, Regards, Dan
- Eric_St__John
Employee
The most common reason is the BIG-IP is seeing packets that are not destined for any IPs configured on the BIG-IP, and is dropping them.
You can start here:
SOL10191: Troubleshooting packet drops https://support.f5.com/kb/en-us/solutions/public/10000/100/sol10191.html
