I am seeing the message ''Enter Valid Router or L3 Switch''. How can I fix this ?

Seed device (Router / L3 Switch) should match the criteria given below to plot the map.

Criteria for Router :

.1.3.6.1.2.1.4.1 - IpForwarding should be 1

.1.3.6.1.2.1.4.20.1.1 - Should return more than two interfaces.

Criteria for Switch :

.1.3.6.1.2.1.17.1.4.1.1 - Bridge MIB should be implemented.