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>> Rather than guess and take random values read on the net - measure it. |
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>> |
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>> Google calculate mtu - netgear and others show ways to test upstream to |
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>> get the ideal size using ping |
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>> |
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>> You are looking for the largest MTU value before fragmentation starts to |
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>> occur. |
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> |
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> See https://www.dslreports.com/faq/695 for detailed instructions on |
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> getting the maximum MTU for your setup. |
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I followed the instructions and got this at first: |
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# ping -s 1472 www.dslreports.com |
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PING www.dslreports.com (64.91.255.98) 1472(1500) bytes of data. |
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From dsldevice (192.168.1.254) icmp_seq=1 Frag needed and DF set (mtu = 1492) |
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1480 bytes from www.dslreports.com (64.91.255.98): icmp_seq=2 ttl=54 |
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time=93.9 ms |
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After that it wouldn't tell me "Frag needed" no matter how high I set |
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the MTU for the ping command, but maybe the above indicates that my |
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max MTU is 1492? |
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- Grant |
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