Thanks for the posts vanman but none of those settings are relevant to home broadband connections and won't do anything positive besides eat up resources.
No home router nor the VM cable modems support jumbo frames, so that setting will never be used, and there will never be an occasion where a home user needs their network card to buffer more data than default - do note that you copy/pasted that explanation from a passive network analysis tool's instructions where there may be a reason to use them.
Buffers being bigger doesn't speed things up, this is just how much data the driver's queue will hold before it drops them. Because your connection is so relatively slow compared with the capabilities of the network card, 100Mbps or 1000Mbps depending on settings, again this will be a complete non-issue.
The machine will never be waiting for response here when the bottleneck is a 20Mbps cable connection and buffering extra is a waste of memory on the host machine. Traffic will be slowed down by higher level protocol responses on the WAN on the transmit side, and the receive 'buffer' will never be filled as the fastest VM will deliver data to your network card at is the tier of service you've paid for.
---------- Post added at 10:51 ---------- Previous post was at 10:47 ----------
Quote:
Originally Posted by Sephiroth
My understanding of Jumbo Frames is that it is TCP oriented for the LAN whereas broadband is IP oriented.
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Jumbo frames are nothing to do with TCP or LAN-centric per se, if anything they show better results over the WAN due to higher RTTs, they are just a larger Ethernet frame.
---------- Post added at 10:55 ---------- Previous post was at 10:51 ----------
Quote:
Originally Posted by Sephiroth
I don't see how BB performance can be enhanced with Jumbo Frames other than in an intensive LAN environment where all applications are cooperating as to MTU size and CPU or buffer capacity is required for concurrent IP work.
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Applications don't care about MTU size and have no visibility of it unless they are specifically querying or testing for it, they just push data at the operating system's IP stack. Purely the operating systems that deal with these things. Remember your
OSI 7 layer model.