Displaying 1 result from an estimated 1 matches for "768cebf3".
2013 Jan 19
1
Ethernet frame header size of TAP device and apropriate MTU calculation
Hello, all! I have many questions about tap device architecture.
What is a right way to calc mtu on TAP device to avoid fragmentation on
real eth device?
I suppose TAP MTU = 1500-8(UDP)-20(IP)-18(Ethernet) = 1454.
So I'd set 1454 for tap device: "ip link set mtu 1454 dev eth0"
I'm not shure about what is the exact size of ethernet frame header,
which tap device use in switch