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miscellaneous

Miscellaneous

This page allows you to tweak some secondary parameters. These are rarely modified so be aware of the consequences if you do so.

Boot Wait Time * = Is the time period when a router can be accessed using the included CFE webserver. This refers to the bootstrap portion of the process, or the loading of code before the OS. If you need to delay FreshTomato's boot process (and stay in internal webserver CFE mode), this is the setting to change. In unusual circumstances, such as a power outage, your modem might take longer to boot than FreshTomato does. This would be the setting to tweak to fix that.

WAN Port Speed * = Enables you to choose between autonegotiate (Default) mode on the WAN port, or forcing a specific combination of speed/duplex for the WAN port. Note that you can only force 10Mbps and 100Mbps. For 1Gpbs, leave the setting on Autonegotiate.

CTF (Cut-Through Forwarding) If set, this will enable hardware acceleration. For example, this would allow you to use your FreshTomato device in a WAN Gigabit environment. With this option disabled (Default), your WAN-to–LAN performance will depend on the hardware model in use. You might get anything between 200~400Mbps on ARM devices. NOTE: Enabling CTF will disable QoS and Bandwidth Limiter, since the switching part of the packet bypasses parts of the standard Linux iptable chains.

Enable Jumbo Frames * = This option (Default: off) allows you to increase the maximum frame size within your LAN.

Jumbo Frame Size * = There's a distinction between Jumbo Frames (default:off) and Jumbo Frames default set to 2000. The latter is the default size if it is enabled (otherwise ignored). Jumbo Frames is usually enabled if you frequently do intensive file transfers within your LAN. In such cases, all devices must support Jumbo Frames, and the packet size should be standardized across all devices on your LAN. It is strongly suggested you leave this off unless you have a specific requirement for it. Once you venture into Jumbo Frames, you'll have to deal with fragmentation of Internet traffic, unless the end device supports Path MTU Discovery. You may find that the limited performance benefits of Jumbo Frames is not worth the time and effort needed to tweak and troubleshoot the feature.

miscellaneous.txt · Last modified: 2021/05/06 17:27 by pedro