H3C XE 200 IP, Руководство по эксплуатации

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Operation Manual – IP Performance and Application
H3C XE 200/2000 IP PBX
Chapter 1 IP Performance Configuration
1-1
Chapter 1 IP Performance Configuration
1.1 MTU Size Configuration
The maximum transmission unit (MTU) decides whether the IP packets on an interface
should be fragmented.
Perform the following configuration in interface view.
Table 1-1 Configure an MTU size
Operation Command
Configure an MTU size mtu mtu-size
Restore to the default value undo mtu
By default, the MTU size is 1500 bytes.
1.2 TCP Packet Fragmentation Configuration
The MTU decides whether the TCP packets on an interface should be fragmented.
Perform the following configuration in interface view.
Table 1-2 Configure TCP packet fragmentation
Operation Command
Configure TCP packet fragmentation tcp mss value
Remove TCP packet fragmentation undo tcp mss
By default, TCP packets are not fragmented.
1.3 TCP Property Configuration
You can configure the following TCP properties:
z
synwait timer: When sending syn packets, the synwait timer is started. If no
response packet is received before synwait timer times out, the TCP connection
will be terminated. The timeout time of this timer ranges from 2 to 600 seconds,
and defaults to 75 seconds.
z
finwait timer: When the TCP connection status changes from FIN_WAIT_1 to
FIN_WAIT_2, the finwait timer is started. If no FIN packet is received before finwait
timer times out, the TCP connection will be terminated. The timeout time of this
timer ranges from 76 to 3600 seconds, and defaults to 675 seconds.