topic Re: NO buffer space available in General Topics

NO buffer space available

Baasanjargal_Ts — Thu, 31 Oct 2019 01:58:21 GMT

Hello,

We can't ping to hosts from CP gateway. Error is "No buffer space available". How to troubleshoot it.

Re: NO buffer space available

G_W_Albrecht — Thu, 31 Oct 2019 08:26:42 GMT

If you search for this is web you will find much discussion in Linux forums - this is reported as a driver / NIC issue:

Chances are it's a problem with the driver or the hardware itself. It can be temporarily fixed by taking the interface up/down. Basically the output queue is full and unless you are handling some major network traffic or have a ton of hosts on the network you shouldn't see that error, and if you were, you could probably tweak some kernel values to prevent the error.

Re: NO buffer space available

JozkoMrkvicka — Sat, 30 Nov 2019 14:04:33 GMT

Did you get your issue resolved meanwhile?

These errors are most probably related to the fact, that the gateway is overloaded and ARP table is full.

Please have a look on this article to confirm this.

Re: NO buffer space available

Baasanjargal_Ts — Mon, 02 Dec 2019 00:59:44 GMT

Thank you @JozkoMrkvicka.

Problem solved after reboot the appliance.