mtu

Maximum Transmission Unit in bytes. The default value is 1460 bytes. The minimum value for this field is 1300 and the maximum value is 8896 bytes (jumbo frames). Note that packets larger than 1500 bytes (standard Ethernet) can be subject to TCP-MSS clamping or dropped with an ICMP Fragmentation-Needed message if the packets are routed to the Internet or other VPCs with varying MTUs.