Mtu - HP 6125XLG Command Reference Manual

mode ipv6-ipv4 isatap: Specifies ISATAP tunnel mode.
Usage guidelines
To create a new tunnel interface, you must specify the tunnel mode in this command. To enter the view of
an existing tunnel interface, you do not need to specify the tunnel mode.
A tunnel interface number is locally significant. The tunnel interfaces on the two ends of a tunnel can use
the same or different interface numbers.
Examples
# Create a GRE over IPv4 tunnel interface Tunnel 1 and enter tunnel interface view.
<Sysname> system-view
[Sysname] interface tunnel 1 mode gre
[Sysname-Tunnel1]
Related commands
destination
•
display interface tunnel
•
• source

mtu

Use mtu to set the MTU for IPv4 packets on a tunnel interface.
Use undo mtu to restore the default.
Syntax
mtu mtu-size
undo mtu
Default
The MTU value depends on the tunnel interface state.
• If the tunnel interface is down, the MTU is 64000 bytes.
If the tunnel interface is up, the MTU is calculated automatically by the system.
•
Views
Tunnel interface view
Predefined user roles
network-admin
Parameters
mtu-size: MTU for IPv4 packets, in the range of 100 to 64000 bytes.
Usage guidelines
Set an appropriate MTU to avoid fragmentation. The MTU for the tunnel interface applies only to unicast
packets.
An MTU set on any tunnel interface is effective on all existing tunnel interfaces.
Examples
# Set the MTU for IPv4 packets on the interface Tunnel 1 to 10000 bytes.
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