3Com MSR 50, MSR 30 manual Timer hold, Example # Configure MTU for Ethernet1/0 to be 1,000 bytes

CONFIGURATION COMMANDS FOR

10 ETHERNET INTERFACES IN ROUTE

MODE

mtu

Syntax mtu size

undo mtu

View Ethernet interface view

Parameter size: The value of Maximum Transmission Unit (MTU for short), which varies by interface type and defaults to 1,500 bytes.

■Fast Ethernet: (FE for short): in the range of 46 bytes to 1,560 bytes

■GigabitEthernet (GE for short) or 10 GE: in the range of 46 bytes to 16,384 bytes, with a default value of 1,500 bytes.

Description Use the mtu command to configure MTU value.

Use the undo mtu command to restore MTU value.

n Limited to the QoS queue length (for example, the default length of an FIFO queue is 75), too small an MTU will result in too many fragments, which will be discarded from the QoS queue. In this case, you can increase MTU or QoS queue length properly. In Ethernet interface view, you can use qos fifo queue-lengthto change the QoS queue length. For detailed configurations, see “qos fifo queue-length” on page 1809.

Example # Configure MTU for Ethernet1/0 to be 1,000 bytes.

<Sysname> system-view

[Sysname] interface ethernet 1/0

[Sysname-Ethernet1/0] mtu 1000

timer hold

Syntax timer hold seconds

undo timer hold

View Ethernet interface view