Pros:

• High availability due to high redundancy with multiple leased lines interconnecting regional hubs.
• Secure environment due to Access Control Lists on Firewall routers.
• 4 serial ports available at each regional center for expanding district to encompass more schools.
• Large IP addressing scheme allows for massive expansion.

Cons:

• High Cost of maintaining redundant connections.
• Serial lines bottlenecking throughput from school LANs.