Matthew...is that L2 MTU or L3. On all our Mikrotik routers it shows that the Ethernet MTU is 1500 but L2 MTU is 1580 with a max capability much higher.
Just don't want to Monkey around with things unessisarily. Cheers, ______________________________ Andreas Wiatowski | CEO Silo Wireless Inc. Email andr...@silowireless.com<mailto:andr...@silowireless.com> 19 Sage Court Brantford, Ontario N3R 7T4 (CANADA) Tel +1.519.449.5656<tel:+1.519.449.5656> Extension-600|Fax +1.519.449.5536<tel:+1.519.449.5536> |Toll Free +1.866.727.4138<tel:+1.866.727.4138> -------- Original message -------- From: Matthew Carpenter <mcarpen...@amarillowireless.net> Date: 2016-10-17 5:25 PM (GMT-05:00) To: Telrad List <telrad@wispa.org> Subject: Re: [Telrad] L3 MTU settings Here is Nick's replay to me about MTU settings: We need 1518+28 (GTP) + 28(GRE) =1574 in your S1 path. The UE can be configured for 1560 and endpoints (PCs) set at default 1500. Also eNodeB and EPC must be most recent (4013/729) and UE at .105 (configured for 1600 MTU) Matt Carpenter Amarillo Wireless On Sun, Oct 16, 2016 at 3:26 AM, J Portman <ba...@baron.com<mailto:ba...@baron.com>> wrote: Yup, but the EPC vlans are hard set to 1500 at the current time and no way to change them. Beating my head against this wall right now. JP On Sat, 15 Oct 2016 17:18:36 +0000, Terry Duchcherer wrote > Andreas, we are in the process of changing this as well. Are using 1900 for > Layer2 and 1600 for Layer3. If I remember correctly, you need 1580 Layer3 if > you want to set your [UTF-8?]UE?EUR(tm)s to 1500 which is what we are trying > to achieve. > > Terry > > > > From: telrad-boun...@wispa.org<mailto:telrad-boun...@wispa.org> > [mailto:telrad-boun...@wispa.org<mailto:telrad-boun...@wispa.org>] On Behalf > Of Andreas Wiatowski > Sent: Saturday, October 15, 2016 11:15 AM > To: telrad@wispa.org<mailto:telrad@wispa.org> > Subject: [Telrad] L3 MTU settings > > > Please pardon my ignorance with this question. We use Mikrotik Cloud > [UTF-8?]Core?EUR(tm)s L3 routing with OSPF. Wondering if there is any merit > in switching the default L3 MTU of 1500 to 1580 for better performance and > possibly solve some weird VPN problems for customers on the LTE platform. I > know quite some time back there was a number of discussions around > [UTF-8?]MTU?EUR|I [UTF-8?]can?EUR(tm)t seem to find them. Currently we are L3 > MTU of 1500 and L2 MTU is 1580, some are [UTF-8?]1588?EUR|. Seems to be > calculated automatically. > > > > > > Cheers, > > > > Andreas Wiatowski, CEO > > Silo Wireless Inc. > > 519-449-5656<tel:519-449-5656> x-600 > > Joe Portman Alamo Broadband Inc. www.alamobroadband.com<http://www.alamobroadband.com/> _______________________________________________ Telrad mailing list Telrad@wispa.org<mailto:Telrad@wispa.org> http://lists.wispa.org/mailman/listinfo/telrad -- Matthew Carpenter 806-316-5071 office 806-236-9558 cell [https://docs.google.com/uc?export=download&id=0BxDRq5UV7HPOaEM4LXVaVnk5cWM&revid=0BxDRq5UV7HPOTDdiVjM0TXRIc3ZzMXVUVDdDVjBiaFU0bHJNPQ]
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