Currently, we say:
"You can have up to 128 interior routers in the router network."
"Because there are no limits to the number of edge routers deployed..."
Remove these mentions and add:
Performance of your router network is determined by various factors:
- number of routers
- underlying infrastructure (host resources, network speed, etc)
It is recommended to implement an architecture that minimises the number of routers to maintain satisfactory performance.