3Com 3032 Configuration Manual page 363

22
Configure IP
Performance
C
ONFIGURING
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
To configure IP performance, carry out the following steps:
1 Configure MTU on an Interface
Perform the following configuration in interface view.
Table 389 Configure maximum transmission unit on an interface
Operation
Configure maximum transmission unit on an interface
Restore default value of maximum transmission unit on an
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
Configure IP receiving queue length
Configure IPX receiving queue length
Configure ARP receiving queue length
Configure interface queue length
The range of the receiving queue length of all the protocols is 10~1000 bytes, and
75 bytes is the default value.
3 Configure Router Forwarding Redirect Packets
The following configurations should be made in system view.
IP P
ERFORMANCE
Command
ifquelen ip queue-length
ifquelen ipx queue-length
ifquelen arp queue-length
ifquelen interface type number
receive-queue queue-length
Command
mtu size
undo mtu