Loopback subnetting in context of IGP/MPLS

Dear, Rene

There is a practice to assign /32 routes from a routing pool of /24 to each device in the MP-BGP domain. Why do not use /24 besides wasting address space argumentation? Does someone have any clue why it has been chosen so?

Hello Artur

Hmm, I’m not familiar with this practice. It depends upon the circumstances in which it is applied and to what devices belong to the IP address associated with that /32 route. Can you share some more details with us including examples of this implementation as well as documentation that states it? That way we’ll be able to more appropriately answer your questions… Thanks!

I hope this has been helpful!