4000 Router Series Layer 3 - IP Services Command Reference

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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 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.

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