The Maximum Transmission Unit (MTU) feature of your Linksys router is an advanced configuration that allows you to determine the largest data size permitted on your connection. Generally, if your MTU is too large for the connection, your computer will experience packet loss or dropping internet connection.

Dec 02, 2011 · The advice on this forum and the speedguide analyser is that the optimum MTU for a DSL connection is 1500. Surely this is wrong? For a PPPoA connection, if the speed is limited only by the modem speed, then an MTU value of 1478 is usually the best as this is the maximum value that avoids wasted padding bytes in the fixed size ATM cells that carry data over the link. MTU stands for Maximum Transmission Unit. This is just one of many settings that you may have to adjust to fully optimize your router. The MTU size is a setting that determines the largest packet size that can be transmitted through your system. These packets are measured in octets, or eight-bit bytes. Dec 29, 2013 · With PPPoE, it is highly recommended to set the MTU to 1492, and MSS to 1452 even if you see no issues. With PPPoA, no tampering with MTU/MSS is necessary unless you exactly know you need it. If I do - i likely want to try and see at what point it gets fragmented and then set my MTU accordingly under the dialer0 interface - this may likley be 1492. • The built in PPPoE client for Windows XP uses an MTU that is set to 1480. For more information please reference this XP MTU article. This only applies if you are running the built in XP PPPoE client! Finding the Correct MTU To find the correct MTU for your configuration you must run a simple DO S P ing test. You will simply send out ping The Maximum Transmission Unit (MTU) feature of your Linksys router is an advanced configuration that allows you to determine the largest data size permitted on your connection. Generally, if your MTU is too large for the connection, your computer will experience packet loss or dropping internet connection. If you have an Ethernet-based connection, setting the MTU is straightforward. Simply open the Network pane of System Preferences, and choose "Built-in Ethernet" from the "Show" pop-up tab (you may Nov 28, 2016 · Begin increasing the packet size from this number in small increments until you find the largest size that does not fragment. Add 28 to that number (IP/ICMP headers) to get the optimal MTU setting. For example, if the largest packet size from ping tests is 1462, add 28 to 1462 to get a total of 1490 which is the optimal MTU setting.

What is the MTU of VDSL (not VDSL2)? With ADSL it was 1492, but most ISPs added PPPoE/PPPoA headers reducing it to 1452, is this still the same when it comes to other types of DSL (including VDSL)? dsl mtu

The Maximum Transmission Unit (MTU) feature of your Linksys router is an advanced configuration that allows you to determine the largest data size permitted on your connection. Generally, if your MTU is too large for the connection, your computer will experience packet loss or dropping internet connection.

MTU parameters usually appear in association with a communications interface (NIC, serial port, etc.). The default MTU size is 1500, however for some networking technologies reducing the MTU size and allowing fragmentation can help eliminate some connectivity problems occurring at the protocol level.

Jul 27, 2007 · Because AT&T uses PPPoE for their DSL connectivity I've had to set my LinkSys to use an MTU of 1,492. The rest of my network is using the default ethernet MTU of 1,500. While my testing has shown that I am in fact getting much better throughput with the AT&T connection (~5.2Mb/640Kb) I want to see if I can improve that a bit my tweaking the MTU FAQ: Unusual access. This IP address 157.55.39.231 has been blocked for unusual usage patterns Maximum transmission unit . S. sin_x Senior Member. Joined Jan 26, 2007 Messages 518. Mar 15, 2007 #4 In a nutshell, I need someone to explain to me why setting the MTU at 1492 works, and why 1472 The stardard MTU for Ethernet equipment is 1500 bytes; DSL suffers a small loss of efficiency over Cable and other technologies because the PPP encapsulation shinks this window, meaning packets needs to be smaller (more overhead) and in worst cases, if PMTU doen't work properly, they can be fragmented which causes even greater overhead and delays. Why is the MTU for a PPPoE DSL configuration reduced from 1500 bytes to 1492? A. to establish a secure tunnel with less overhead B. to enable CHAP authentication C. to accommodate the PPPoE headers D. to reduce congestion on the DSL link