# Receive Buffer Size Warning at Startup
**URL:** https://community.graylog.org/t/receive-buffer-size-warning-at-startup/3592
**Category:** Graylog Central (peer support)
**Created:** [December 21, 2017, 2:03pm UTC](https://community.graylog.org/t/receive-buffer-size-warning-at-startup/3592 "2017-12-21T14:03:31Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@panklit](https://community.graylog.org/u/panklit)
#### Post date: [December 21, 2017, 2:03pm UTC](https://community.graylog.org/t/receive-buffer-size-warning-at-startup/3592/1 "2017-12-21T14:03:31Z")
I do get a Warning about the ReceiveBufferSIze at the Startup of Graylog:
WARN [NettyTransport] receiveBufferSize (SO\_RCVBUF) for input SyslogUDPInput{title=TrendMicro Syslog UDP, type=org.graylog2.inputs.syslog.udp.SyslogUDPInput, nodeId=e392dcec-575a-4f51-a0f8-4c3550df339a} should be 262144 but is 212992.
The message appears on all inputs i have configured, but in the webinterface the Size is set to 262144 .
Do i have to worry about or can i ignor it?
Regards, Raphael
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### Author:  [@jochen](https://community.graylog.org/u/jochen)
#### Post date: [January 3, 2018, 8:22am UTC](https://community.graylog.org/t/receive-buffer-size-warning-at-startup/3592/2 "2018-01-03T08:22:57Z")
If you don’t have any problems with oversized UDP packets or dropped messages, you can ignore the warning.
Otherwise you might want to tune your operating system settings regarding UDP receive buffer sizes.
Also see the following related GitHub issue:
[https://github.com/Graylog2/documentation/issues/26](https://github.com/Graylog2/documentation/issues/26)
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### Author:  [@system](https://community.graylog.org/u/system)
#### Post date: [January 17, 2018, 8:23am UTC](https://community.graylog.org/t/receive-buffer-size-warning-at-startup/3592/3 "2018-01-17T08:23:09Z")
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