In Linux systems you can check and modify MTU(Maximum transmission unit) of TCP/IP over ethernet.
Command to show MTU:
ip link list
Output:
1: lo: mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 18:03:73:bf:a3:11 brd ff:ff:ff:ff:ff:ff
4: eth1: mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:60:6e:00:f1:7d brd ff:ff:ff:ff:ff:ff
Modify MTU of eth0 with command below
ip link set dev eth0 mtu 1000
Set MTU permanently in Debian or UBuntu Linux
/etc/network/interfaces
Set MTU permanently in rpm based Linux
/etc/sysconfig/network-scripts/ifcfg-eth0
NOTE: you can also get or set MTU values with ifconfig command.
palatana 