Todd At this point I’ve elected to evaluate a MSS of 1452 to determine if a theoretical max is beneficial.
In addition I’m currently testing a fixed MTU of 1492 on one LAN interface in conjunction with my PS4 console. Based on troubleshooting this afternoon it appears the number of device interrupts has decreased by “thirty" percent. When possible I’ll install 6.0 & hopefully configure the APUs RE(4) NICs with (baby jumbo's) CenturyLink allowing. Regards Patrick > On Dec 20, 2016, at 2:13 PM, Todd C. Miller <todd.mil...@courtesan.com> wrote: > > On Tue, 20 Dec 2016 08:58:43 -0600, Patrick Dohman wrote: > >> I'm currently running a ZyXEL C1100Z VDSL2 modem. >> >> At this point the hardware WAN interface (RE1) is configured with an MTU of >> 1500 >> >> In addition the PPPOE interface is configured with an MTU of 1492 > > Are you setting the MSS to 1440 in pf.conf as per the pppoe man > page? If not, you should. See the section on MTU/MSS ISSUES. > > I've tried using an MTU of 1508 on the ethernet interface (baby > jumbos) but didn't get it working with Quest/Centurylink VDSL2. > Presumably their equipment doesn't support RFC 4638. > > - todd
