In the example you posted, I suspect that CDP is interpreting the connectivity as reported by RTRDISKXX001 to indicate that all of the four routers across the bottom in your screen shot are connected via Ethernet to the same interface on RTRDISKXX001. If they are sub-interfaces or logical interfaces on a single physical interface, you might see this sort of display.
Could you post the output of "show cdp neighbor summary" from RTRDISKXX001 to confirm or refute this suspicion?
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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