I am a network engineer & my server guy doesn't appear to be able to get the jumbo MTU's to work on his NIC team. We are using LACP for two 10gig interfaces between the switch. I am 100% certain that the switch is configured for jumbo frames. And to visually see it, I have tested it using pings at 9100 size and the df-bit set to that switch and it works. However, his servers just don't seem to work with 8k pings to that same switch. Are there any settings with the port-channel on the server that he can use to fix the problem? I'm certain the switch isn't an issue.
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I don't understand if you have set the jumbo frame on your nic server also. – Francesco P Nov 19 '15 at 16:29
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He said that he has – john smith Nov 19 '15 at 17:56
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Is the server a LNX machine? if yes could you post an ifconfig
output and ethtool -i – Francesco P Nov 19 '15 at 19:18output? -
also ...ethtool -S
– Francesco P Nov 19 '15 at 19:35