FIFO Underrun

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maafty

Dabbler
Joined
Jul 7, 2016
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Hi All,

ive just configured jumbo frames on my network, ESX host VMkernal is set to mtu 9000, my managed switch is set to 9216 (it is configured to allow up to this) and freenas LACP (2x interfaces) is set to mtu 9000, at each interface and the lagg.

doing ping tests shows jumbo frames being used and also my switch is reporting large packets successfully going back and forth. all seems to be working fine except im getting a lot of "msk0: Tx FIFO underrun!" & "msk1: Tx FIFO underrun!" showing in the console.

please can somebody explain what is happening. many thanks
 

maafty

Dabbler
Joined
Jul 7, 2016
Messages
12
thanks for the reply, im hoping to replace the nics with 10gbe soon so i wont be using jumbo frames.
 
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