Talk:Maximum transmission unit

message: I found the MTU of 1492 for PPoE and the note rarely used interesting.  Is it refereing to PPoE being rarely used or the 1492?  I thought PPoE is still fairly common for DSL.  When I set up my DSL connection something that was recommended to me was to set the MTU to 1492 on the router to maximize the connection / to ensure full compatibility.  I don't know enough to make a proper edit but perhaps the note needs to be updated or PPoE given it's own section?  — Preceding unsigned comment added by 69.196.139.63 (talk) 00:15, 25 April 2012 (UTC)
replies: text: "Rarely used" comment was removed at some point. ~Kvng (talk) 15:28, 5 May 2020 (UTC)
thread_title:  PPoE rarely used? 

message: Hello fellow Wikipedians,
I have just added archive links to  on Maximum transmission unit. Please take a moment to review my edit. If necessary, add  after the link to keep me from modifying it. Alternatively, you can add  to keep me off the page altogether. I made the following changes:
*Added archive https://web.archive.org/20111226003507/http://support.3com.com/infodeli/tools/switches/ss3/management/ug/cli_mg6a.htm to http://support.3com.com/infodeli/tools/switches/ss3/management/ug/cli_mg6a.htm
When you have finished reviewing my changes, please set the checked parameter below to true to let others know.
Cheers. —cyberbot IITalk to my owner:Online 06:34, 27 August 2015 (UTC)
replies: text: Bad archive but this source is lo longer used in the article. ~Kvng (talk) 15:28, 5 May 2020 (UTC)
thread_title:  External links modified 

message: So, in order to perhaps shed some light on the IP vs. Ethetnet MTU confusion, I added the section "IP and Ethernet MTU". Please don't just delete it as this is a major problem for lots of networking engineers out there. If you see a problem with the section, modify and discuss here!  — Preceding unsigned comment added by Fb35523 (talk • contribs) 23:36, 30 April 2020 (UTC)
replies: text: I edited it heavily. The section is now  It was hard to get through with multiple terminology definitions, tangentials and awkward sentence structure. There were also some unsupported statements. Let me know what you think of the new version. ~Kvng (talk) 15:28, 5 May 2020 (UTC)
thread_title:  IP and Ethernet MTU 

message: "Smaller MTU values can reduce network delay."
This appears to be have been added by someone with no understanding of how routers work.
Smaller MTU values will cause more larger packets to be chopped up then reassembled. This will not reduce network delay.
If you reduced your MTU and it fixed delay, then most likely you have just resolved a conflict between incompatible MTU settings on various hardware components.
MTU will never increase the size of small packets, but will cause a delay while it breaks up larger packets.
Someone please justify and reference this sentence or remove it. 
I'm getting sick of fielding tech support from people trying to reduce lag who are messing with their routers for no good reason.  — Preceding unsigned comment added by 202.65.67.223 (talk) 07:25, 20 January 2021 (UTC)
replies: text: Please add new section at the bottom. If you have a problem with uncited text please add a  tag (citation needed). Reducing the MTU doesn't necessarily cause or increase fragmentation, but of course more packets would need to be transmitted, reducing efficiency. --Zac67 (talk) 07:40, 20 January 2021 (UTC)
thread_title: reference it or fix it