R0106-HP MSR Router Series Interface Command Reference(V7)

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<Sysname> system-view
[Sysname] interface analogmodem 2/4/0
[Sysname-Analogmodem2/4/0] loopback
mtu
Use mtu to set the MTU for an AM interface.
Use undo mtu to restore the default.
Syntax
mtu size
undo mtu
Default
The MTU of an AM interface is 1500 bytes.
Views
AM interface view
Predefined user roles
network-admin
Parameters
size: Sets the MTU in bytes. The value range for this argument is 128 to 1650.
Usage guidelines
The MTU setting affects IP packet assembly and fragmentation on the interface.
Examples
# Set the MTU of interface Analogmodem 2/4/0 to 1430 bytes.
<Sysname> system-view
[Sysname] interface analogmodem 2/4/0
[Sysname-Analogmodem2/4/0] mtu 1430
phy-mru
Use phy-mru to set the MRU for an AM interface operating in flow mode.
Use undo phy-mru to restore the default.
Syntax
phy-mru mrusize
undo phy-mru
Default
The MRU of an AM interface is 1700 bytes.
Views
AM interface view
Predefined user roles
network-admin