12-22-2016 05:40 AM - edited 03-05-2019 07:43 AM
I have two routers configure both interface with mtu 1900, but when i ping from one side to another with mtu higher than 1510 i get higher loss packets, any idea How i can fix?
12-22-2016 05:56 AM
What kind of media connects the routers? What kind of interfaces are the routers using? Is there any device connected between the routers or are they back to back connections?
HTH
Rick
12-22-2016 06:34 AM
Between them ISP but we connect them using L2TP, and both interfaces are Gig-ethernet
12-22-2016 07:53 AM
If between the routers is ISP then I wonder if ISP is dropping packets with large MTU. Even with L2TP if your router sends a packet with size greater than 1510 it seems the ISP would see the larger frame and might reject it.
HTH
Rick
12-22-2016 08:09 AM
actually the ISP use 9000 mtu
12-23-2016 07:17 AM
up..up..
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