MTU and VLAN
Posted: Wed Feb 10, 2021 8:51 am
Hey guys
Question about MTU settings and my Bell Canada WTTH internet. I did some packet tests and discovered that the largest packet I can send without fragmenting is 1412 (ugh). So I know that to set MTU properly you are supposed to add 28 to that for the headers which would take me to 1440.
However I am also sending a VLAN tag because it's bell internet which is another 4. So......do I set my MTU to 1440 or 1444? I have read conflicting reports, some that say add it and some that say it's ignored in the MTU (that is the MTU would accept 1440 OR 1444 if I set it at 1440). I know it's not a big deal in the grand scheme of things but I'm more curious than anything.
Appreciate the help!
EDIT: So last night I set it to 1440 and everything seems to be working okay except that wireless seems a little slow to respond at first. Pages load quickly, speedtest is good once the connection is made. Any input? Have I achieved anything at all or is this just pointless anyway lol.
Question about MTU settings and my Bell Canada WTTH internet. I did some packet tests and discovered that the largest packet I can send without fragmenting is 1412 (ugh). So I know that to set MTU properly you are supposed to add 28 to that for the headers which would take me to 1440.
However I am also sending a VLAN tag because it's bell internet which is another 4. So......do I set my MTU to 1440 or 1444? I have read conflicting reports, some that say add it and some that say it's ignored in the MTU (that is the MTU would accept 1440 OR 1444 if I set it at 1440). I know it's not a big deal in the grand scheme of things but I'm more curious than anything.
Appreciate the help!
EDIT: So last night I set it to 1440 and everything seems to be working okay except that wireless seems a little slow to respond at first. Pages load quickly, speedtest is good once the connection is made. Any input? Have I achieved anything at all or is this just pointless anyway lol.