I have a 2500 configured as a Frame-Relay switch with two other routers configured on either side. Now, I understand that FR is of NBMA type. Can I assume correctly that CDP will not work in this case?
I tried configuring it, however, I am getting the following error: CDP-EV: Encapsulation on interface Serial0 failed
On the other hand, CDP works below layer 3, so it should not in principle rely on the FR.
The two routers on either side on the switch (i.e. the router configured as a FR switch) are able to ping each other and show each other as CDP neighbours.
Can somebody please clarify this for me?