R21xx-HP FlexFabric 11900 Layer 3 IP Services Command Reference

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Syntax
mtu mtu-size
undo mtu
Default
The MTU is 64000 bytes.
Views
Tunnel interface view
Predefined user roles
network-admin
Parameters
mtu-size: Specifies the 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 to only 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.
<Sysname> system-view
[Sysname] interface tunnel 1
[Sysname-Tunnel1] mtu 10000
reset counters interface
Use reset counters interface to clear the statistics of tunnel interfaces.
Syntax
reset counters interface [ tunnel [ number ] ]
Views
User view
Predefined user roles
network-admin
Parameters
number: Tunnel interface number.
Usage guidelines
Use this command to clear old statistics so you can observe new traffic statistics on a tunnel interface.
If no parameters are specified, this command clears the statistics for all interfaces.
If only the tunnel keyword is specified, this command clears the statistics for all tunnel interfaces.