3Com 10014299 Configure IP, Performance, Configure maximum transmission unit on an interface

22 CONFIGURING IP PERFORMANCE

This chapter contains information on the following topics:

■Configure IP Performance

■Configure TCP Performance

■Configure Fast Forwarding

■Display and Debug IP Performance

■Troubleshooting IP Performance Configuration

Configure IP	To configure IP performance, carry out the following steps:
Performance
1 Configure MTU on an Interface
	Perform the following configuration in interface view.
	Table 389 Configure maximum transmission unit on an interface
			Operation		Command
			Configure maximum transmission unit on an interface		mtu size
			Restore default value of maximum transmission unit on an		undo mtu
			interface
	When the Ethernet interface is encapsulated as Ethernet II, the interface mtu
	ranges from 46 to 1500 bytes, and default is 1500 bytes. When the Ethernet
	interface is encapsulated as SNAP, the interface mtu ranges from 46 to 1492
	bytes, and 1492 bytes is default value. The serial port mtu ranges from 128 to
	1500 bytes, and 1500 bytes is default value. The BRI port mtu value ranges from
	128 to 1500 bytes, and 1500 bytes is default value.
2	Configure Queue Length
	Perform the following task in system view.
	Table 390 Configure queue length
		Operation		Command
		Configure IP receiving queue length		ifquelen ip queue-length
		Configure IPX receiving queue length		ifquelen ipx queue-length
		Configure ARP receiving queue length		ifquelen arp queue-length
		Configure interface queue length		ifquelen interface type number
				receive-queue queue-length

The range of the receiving queue length of all the protocols is 10~1000 bytes, and 75 bytes is the default value.

3Configure Router Forwarding Redirect Packets

The following configurations should be made in system view.