Avaya G430 Manual page 441

5. In most cases, it is recommended to configure dynamic MTU discovery in the
6. Enter copy running-config startup-config.
Result
For a list of optional GRE tunnel features, refer to
page 438. For a list of additional GRE tunnel CLI commands, refer to
tunneling commands
GRE tunnel application example
This section provides an example of a GRE tunnel application and its configuration.
Administering Avaya G430 Branch Gateway
The following example configures the tunnel to send a keepalive packet every 20
seconds, and to declare the tunnel down if the source interface sends three
consecutive keepalive packets without a response.
Gxxx-001(super-if:Tunnel 2)# keepalive 20 3
Done!
Gxxx-001(super-if:Tunnel 2)#
tunnel.
This prevents fragmentation of packets larger than the tunnel's MTU. When
dynamic MTU discovery is not enabled, the tunnel fragments packets larger than
the tunnel's MTU, even when the packet is marked do not fragment. For more
information on dynamic MTU discovery, see
page 439.
The following example configures dynamic MTU discovery, with an age timer of 15
minutes.
Gxxx-001(super-if:Tunnel 2)# tunnel path-mtu-discovery age-timer 15
Done!
Gxxx-001(super-if:Tunnel 2)#
This saves the new Tunnel interface configuration in the startup configuration file.
on page 443.
Dynamic MTU discovery
Optional GRE tunnel features
Summary of GRE
The router
on
on
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