Motorola WiNG 5.5 Reference Manual page 151

MTU
Use Tunnel Policy
Local Hostname
Local Router ID
Establishment Criteria
VRRP Group
Critical Resource
11. Refer to the Peer table to review the configurations of the peers available for tunnel connection.
Select + Add Row to populate the table with a maximum of two peer configurations.
Set the maximum transmission unit (MTU). The MTU is the size (in bytes) of the largest
protocol data unit the layer can pass between tunnel peers. Define a MTU between
128 - 1,460 bytes. The default setting is 1,460. A larger MTU means processing fewer
packets for the same amount of data.
Select the L2TPv3 tunnel policy. The policy consists of user defined values for protocol
specific parameters which can be used with different tunnels. If none is available a new
policy can be created or an existing one can be modified. For more information, refer to
L2TP V3 Configuration on page
Provide the tunnel specific hostname used by this tunnel. This is the hostname advertised
in tunnel establishment messages.
Specify the router ID sent in tunnel establishment messages with a potential peer device.
Configure establishment criteria for creating a tunnel between the device and the NOC.
This criteria ensures only one tunnel is created between two sites where the tunnel is
established between the vrrp-master/cluster master/rf-domain manager at the remote
site and the controller at the NOC. The tunnel is created based on the role of the remote
peer.
• always – The tunnel is always created irrespective of the role of the local device.
• vrrp-master – The tunnel is only created when the local device is a VRRP master.
• cluster-master – The tunnel is only created when the local device is a cluster master.
• rf-domain-manager – The tunnel is only created when the local device is a RF-Domain
manager.
In all the above cases, if the local device goes offline for any reason, the tunnel is brought
down.
This field is enabled only when the Establishment Criteria is set to vrrp-master. Use the
spinner to select the VRRP group.
Enter the critical resources required for creating and maintaining a L2TPV3 tunnel. A
tunnel is only established when all critical resources for the tunnel to be operational are
available at the time when the tunnel is created. If any one of the listed critical resources
goes down, the tunnel is disabled.
When a tunnel is established, the listed critical resources are checked for availability.
Tunnel establishment is started if the critical resources are available. Similarly, for
incoming tunnel termination requests, listed critical resources are checked and tunnel
terminations are only allowed when the critical resources are available.
For more information on managing critical resources, see
page 5-141.
Device Configuration 5 - 65
7-8.
Profile Critical Resources on