As you mentioned in your original post routers are visible on switches means router is sending CDP information and switch reveives and displays but routers cannot see switches and what I am presuming is CDP can be disabled on switch interface level.
If CDP is enabled on the switch interfaces also is it possible for you to sniff the switch interface and see if switch is sending CDP information?
Sorry i didn't answer your last question completely.
CDP is enabled on every switch-trunk interface, and CDP is working fine on interswitch-links. The problem seems to be only on the routers. I have no doubt that CDP is enabled, and hope to avoid sniffing the interfaces as long as possible.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
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