Ipv6 Pathmtu Age - H3C IE4300 Command Reference Manual

ipv6-address
: Specifies the Path MTU of the specified IPv6 address, in the range of 1280 to 10240 bytes.
value
Usage guidelines
You can set a static Path MTU for a destination IPv6 address. When a source host sends a packet
through an interface, it compares the interface MTU with the static Path MTU of the specified
destination IPv6 address. If the packet size is larger than the smaller one of the two values, the host
fragments the packet according to the smaller value.
Examples
# Set a static Path MTU for an IPv6 address.
<Sysname> system-view
[Sysname] ipv6 pathmtu fe80::12 1300
Related commands
display ipv6 pathmtu
reset ipv6 pathmtu

ipv6 pathmtu age

Use
ipv6 pathmtu age
Use
undo ipv6 pathmtu age
Syntax
ipv6 pathmtu age age-time
undo ipv6 pathmtu age
Default
The aging time for dynamic Path MTU is 10 minutes.
Views
System view
Predefined user roles
network-admin
Parameters
age-time
Usage guidelines
After the path MTU from a source host to a destination host is dynamically determined, the source
host sends subsequent packets to the destination host based on this MTU. After the aging time
expires, the following events occur:
•
The dynamic Path MTU is removed.
•
The source host determines a dynamic path MTU through the Path MTU mechanism again.
The aging time is invalid for a static Path MTU.
Examples
# Set the aging time for a dynamic Path MTU to 40 minutes.
<Sysname> system-view
[Sysname] ipv6 pathmtu age 40
: Specifies an IPv6 address.
to set the aging time for a dynamic Path MTU.
: Specifies the aging time for Path MTU in minutes, in the range of 10 to 100.
to restore the default.
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