Configuring The Aging Time For Dynamic Pmtus; Configuring Ipv6 Tcp Properties - HP A7500 Series Configuration Manual

Configuring the aging time for dynamic PMTUs

After the path MTU from a source host to a destination host is dynamically determined (see
discovery"), the source host sends subsequent packets to the destination host based on this MTU. After
the aging time expires, the dynamic PMTU is removed and the source host re-determines a dynamic path
MTU through the PMTU mechanism.
The aging time is invalid for a static PMTU.
Follow these steps to configure the aging time for dynamic PMTUs:
To do...
Enter system view
Configure the aging time for
dynamic PMTUs

Configuring IPv6 TCP properties

You can configure the following IPv6 TCP properties.
synwait timer: When a SYN packet is sent, the synwait timer is triggered. If no response packet is
•
received before the synwait timer expires, the IPv6 TCP connection establishment fails.
• finwait timer: When the IPv6 TCP connection status is FIN_WAIT_2, the finwait timer is triggered. If
no packet is received before the finwait timer expires, the IPv6 TCP connection is terminated. If a
FIN packet is received, the IPv6 TCP connection status becomes TIME_WAIT. If non-FIN packets are
received, the finwait timer is reset upon receipt of the last non-FIN packet and the connection is
terminated after the finwait timer expires.
Size of the IPv6 TCP sending/receiving buffer.
•
Follow these steps to configure IPv6 TCP properties:
To do...
Enter system view
Set the synwait timer
Set the finwait timer
Set the size of the IPv6 TCP
sending/receiving buffer
Use the command...
system-view
ipv6 pathmtu age age-time
Use the command...
system-view
tcp ipv6 timer syn-timeout
wait-time
tcp ipv6 timer fin-timeout wait-time
tcp ipv6 window size
118
"IPv6 PMTU
Remarks
—
Optional
10 minutes by default.
Remarks
—
Optional
75 seconds by default.
Optional
675 seconds by default.
Optional
8 KB by default.