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--- advanced-misc [2023/05/29 04:42] – -condense, undo last formatting hogwild
+++ advanced-misc [2023/09/25 21:40] – hogwild
@@ Line 1: / Line 1: @@
 ====== Miscellaneous ======
-This page allows you to tweak some secondary settings. These settings rarely need to be modified. If you change them, make sure you understand the consequences of doing so.
+In this menu, you can tweak some secondary, less critical settings. These settings rarely need to be modified. If you change them, make sure you understand the consequences of the changes.
+ \\
 **Boot Wait Time * :**  This is the time period during which 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 Operating system loads. If you need to delay the s boot process (to stay in internal webserver CFE mode), change this setting. In rare circumstances, like a power outage, your modem might take longer to boot than FreshTomato does. This setting would be used to tune that until it is optimal.\\  \\
@@ Line 7: / Line 9: @@
 {{:pasted:20220428-100039.png}} \\   \\   \\   \\ **WAN Port Speed * :**  This allows you to choose either Autonegotiate (Default) mode on the WAN port, or force a specific combination of speed/duplex for the WAN port. Only 10Mbps and 100Mbps speeds can be forced. For 1Gpbs, leave the setting on Autonegotiate.
- \\ {{:pasted:20220428-100159.png}} \\   \\   \\ **CTF (Cut-Through Forwarding): ** If checked, this enables hardware acceleration.
+ \\ {{:pasted:20220428-100159.png}} \\   \\   \\ **CTF (Cut-Through Forwarding): ** If checked, this enables Level 1 NAT hardware acceleration.
-CTF uses an alternative forwarding method to Store and Forward in bridges. For example, CTF could allow you to use your FreshTomato device in a Gigabit WAN environment. When CTF is disabled (Default), WAN-to-LAN performance depends on the router model in use. On ARM devices, you can expect performance in the range of 200 to 400 Mb/s.
+CTF lets bridges use an alternative forwarding method for storing and forwarding frames. Enabling CTF may improve speeds on Internet plans that offer speeds above 100 Mb/second. CTF is usually necessary to achieve peak speeds on plans that allow 200 Megabits/second and above.
-Note that **enabling CTF will disable QoS and Bandwidth Limiter**. This is because the switching part of the packet bypasses parts of the standard Linux iptable chains.
+With CTF enabled, the router starts to send out transmission frames as soon as the full packet header has been received. However, the router relies on the client device to tell it whether the data is corrupted for resend. This restriction can cause problems with a few common home uses. Note that enabling CTF will disable QoS and Bandwidth Limiter. This is because the switching part of the packet bypasses parts of the standard Linux iptable chains.
+With CTF disabled, the router will store the entire frame before sending it out to its destination. When this happens:
+  * The holding period may require more of the router's CPU time.
+  * WAN-to-LAN performance will depend more on the router model in use.
+CTF/FastNAT is supported as follows:
   * ARM Routers (like the RT-AC68U, RT-AC3200, R7000) support CTF.
   * MIPS RT-N routers (like the E4200v1, RT-N16) can use Broadcom FastNAT
     * FastNAT is a similar function to forward at accelerated speeds.
@@ Line 20: / Line 30: @@
  \\
-**Enable Jumbo Frames * :** This option allows you to increase the maximum frame size within the LAN. (Default: Disabed).
+On ARM-based devices, you can expect performance in the range of 200 to 400 Mb/s with CTF enabled.
+ \\ **Enable Jumbo Frames * :** This option allows you to increase the maximum frame size within the LAN. (Default: Disabled).
 The default size for Jumbo Frames is 2000 bytes. If enabled, all ports (WAN + LAN) will have Jumbo Frame capability enabled.

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