Hi,Are the serial endpoint strings on each serial interface unique?exampleinterface Serial1/1/1:0ppp multilink endpoint string ser-1110interface Serial1/2/0:0ppp multilink endpoint string ser-1200interface Serial2/1/1:0ppp multilink endpoint string ...

Hi,Check the patch cords, possibly one or both are 62.5 um. At 100FX the patch cords work sometimes, but at 1000SX the link may be up but no traffic passes, lots of CRCs.The second item may be your media converters only operate at 1000T and don't sup...

Hi,Yes it is redundant, the ip tcp adjust-mss only needs to be on the subinterface in this example, because it is a layer 3 interface. Where there are MTU issues there are MTU issues for all protocols.This command only affects TCP traffic. If you mo...

Hi, To accomplish your goal, it is best to enforce DHCP as the sole source of receiving IP addresses, and in this way deny the use of statically assigned IP addresses. The simplest method is to use DHCP snooping and Dynamic ARP Inspection. DCP Snoopi...