360 CHAPTER 22: CONFIGURING IP PERFORMANCE
Tabl e 391 Configure router forwarding redirect packets
By default, router forwarding redirect packets is enabled.
4Configure Router Receiving/Forwarding Source Route Packets
The following configurations should be made in system view.
Tabl e 392 Configure router receiving/forwarding source address route packets
By default, router receiving/forwarding source address route packets is disabled.
Configure TCP
Performance To configure TCP performance, carry out the following steps:
1Configure TCP Header Compression
When small messages are transmitted on low-rate physical lines (such as PSTN),
the TCP header occupies an obviously larger portion in the messages. To raise
transmission efficiency, TCP header compression can be configured on this
interface. At present, TCP head compression can only be used on PPP links.
Perform the following task in interface view.
Tabl e 393 Enable/disable TCP header compression
TCP header compression is disabled in default status.
2Configure TCP Timers
The following TCP timers can be configured:
■Synwait timer: When a syn message is sent, TCP starts the synwait timer. If no
response message is received till synwait timeout, TCP connection will be
terminated.
■Finwait timer: When the TCP connection status changes from FIN_WAIT_1 to
FIN_WAIT_2, the finwait timer is started. If no FIN message is received till the
finwait timer timeout, then TCP connection is terminated.
■Size of the receiving and sending window for the connection-oriented Socket.
Perform the following task in system view.
Tabl e 394 Configure TCP Timers
Operation Command
Configure router forwarding redirect packets icmp redirect send
Disable router forwarding redirect packets undo icmp redirect send
Operation Command
Configure router receiving/forwarding source
address route packets ip option source-route
Disable router receiving/forwarding source address
route packets undo ip option source-route
Operation Command
Enable TCP/IP VJ header compression ppp compression vj
Disable TCP header compression undo ppp compression vj
Operation Command
Configure synwait timer for TCP connection tcp timer syn-timeout seconds
Configure FIN_WAIT_2 timer for TCP tcp timer fin-timeout seconds