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Friday, July 16, 2010

Determining the MTU Value for Your Internet Connection

Contact your ISP for the recommended MTU size for your Internet connection (cable, DSL, T1, etc...) or you can also use the PING command at the Operating System prompt to determine the MTU size.

Ping -f -l #

Example: Ping -f -l 1500 www.yahoo.com

Note: Reduce packet size by 8 byte (1500-8 = 1492, 1484, 1404, etc.) until you get 0% packet LOSS.

Example: Ping -f -l 1492 www.yahoo.com

I steal this from sonicwall manual

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