Validate that the encapsulation method is utilizing Point-to-Point Protocol

Validate that the destination customer network is in the correct VRF

Validate that the circuit clocking is inaccurate and needs to be synchronized on both sides

Check the physical connection between both devices to ensure stability

Identify incorrect RADIUS configuration is present on the PE device

Check that an access-list is mis-configured on the loopback 0 interface and needs to be corrected

The customer has explicit control of their own WAN.

The customer can modify the service provider route distinguishers.

The customer has explicit control of their LAN.

The customer is aware of the infrastructure within the WAN.

WANs will differ from LANs with attributes such as latency and distance.

255.255.255.192 and /25

255.255.255.248 and /28

255.255.255.224 and /26

255.255.255.248 and /27

255.255.255.240 and /28

255.255.255.240 and /16

Disruption of the entire network is not required when adding new machines.

Any problem which leaves the network inoperable can be traced to the central hub.

This network type requires less cable as compared to linear bus topology.

The performance of one of the numerous nodes cannot reflect on the performance of other nodes.

The performance of the entire network is directly dependent on the performance of the hub.