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DES-7200 Configuration Guide Chapter 1 Interface Configuration
1-13
1.2.7 Configuring
Interface MTU
When a heavy throughput of data interchange occurs on a port, there may be a
frame beyond the Ethernet standard frame length. This type of frame is called
jumbo frame. A user can control the maximum frame length that the port is
allowed to receive and send by setting the MTU.
MTU refers to the length of a valid data segment in a frame, excluding the
overhead of Ethernet encapsulation.
The MTU of a port is checked during input, not output. If the frame received by
the port is longer than the set MTU, it will be discarded.
The MTU is in the range from 64 to 9216 bytes with the granularity of 4 bytes. Its
default value is 1500 bytes.
This configuration command takes effect only for physical ports. The SVI
interface currently does not support the MTU setting.
Command Function
DES-7200(config-if)# Mtu num
Set the MTU for a port.
num: <64 to 9216>
This example shows how to set the MTU for Gigabitethernet 1/1:
DES-7200# config terminal
Enter configuration commands, one per line. End with CNTL/Z.
DES-7200(config)# interface gigabitethernet 1/1
DES-7200(config-if)# mtu 64
DES-7200(config-if)# end
1.2.8 Configuring L2
Interfaces
The following table shows the default settings of L2 interfaces. For the
configurations of VLAN and ports, please refer to Configuring VLAN and
Configuring Port-based Flow Control.
Attribute Default Configuration
Working mode L2 switch mode
Switch port mode access port
Allowed VLAN range 1 to 4094
Default VLAN (for access port) VLAN 1
Native VLAN (for trunk port) VLAN 1
Media Type copper