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advanced-misc [2023/09/25 19:03] – hogwild | advanced-misc [2023/09/25 21:43] (current) – -warn that * means not all models support feature hogwild | ||
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====== Miscellaneous ====== | ====== Miscellaneous ====== | ||
- | In this menu, you can tweak some secondary settings. These settings rarely need to be modified. If you change them, make sure you understand the consequences of the changes. | + | In this menu, you can tweak some secondary, less critical |
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- | **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, | + | **Boot Wait Time * :** This is the time period during which the 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 boot process (to stay in internal webserver CFE mode), change this setting. In rare circumstances, |
- | {{: | + | {{: |
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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/ | 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/ | ||
- | With CTF enabled, the router starts to send out transmission frames as soon as it receives its destination. 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 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. |
- | When you have CTF disabled, the router will store the entire frame before sending it out to its destination. When this happens: | + | 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' | * The holding period may require more of the router' | ||
- | * WAN-to-LAN performance | + | * WAN-to-LAN performance |
- | * | + | |
- | CTF/FastNAT is support | + | CTF/FastNAT is supported |
* ARM Routers (like the RT-AC68U, RT-AC3200, R7000) support CTF. | * ARM Routers (like the RT-AC68U, RT-AC3200, R7000) support CTF. | ||
+ | |||
* MIPS RT-N routers (like the E4200v1, RT-N16) can use Broadcom FastNAT | * MIPS RT-N routers (like the E4200v1, RT-N16) can use Broadcom FastNAT | ||
* FastNAT is a similar function to forward at accelerated speeds. | * FastNAT is a similar function to forward at accelerated speeds. | ||
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The jumbo frames feature is only supported in 1000 Mbit/s mode. Also, a gigabit switch uses more memory when this feature is enabled. This will influence system performance, | The jumbo frames feature is only supported in 1000 Mbit/s mode. Also, a gigabit switch uses more memory when this feature is enabled. This will influence system performance, | ||
+ | |||
+ | The asterisk (*) indicates that not all hardware models support this feature. | ||
**Jumbo Frame Size: | **Jumbo Frame Size: | ||
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You are strongly advised to leave this disabled unless you have specific requirements for it. Venturing into Jumbo Frames means you'll have to deal with fragmentation of Internet traffic, unless the end device supports Path MTU Discovery. Users often find that the limited performance benefits of Jumbo Frames is not worth the time and effort needed to tune and troubleshoot it. | You are strongly advised to leave this disabled unless you have specific requirements for it. Venturing into Jumbo Frames means you'll have to deal with fragmentation of Internet traffic, unless the end device supports Path MTU Discovery. Users often find that the limited performance benefits of Jumbo Frames is not worth the time and effort needed to tune and troubleshoot it. | ||
+ | |||
+ | The asterisk (*) indicates that not all hardware models support this feature. | ||
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