There is no real difference as far as ARP is concerned. You should not confuse this with the concept of MAC address learning. ARP is a layer-3 concept, used for mapping layer 3 addresses to layer 2 addresses. When a switch is L3-capable, it uses the same ARP mechanism as a router or a host. However, switches also learn MAC addresses on their switch ports, which is part of the function of switching. That is a completely different thing to ARP, though. The learned MAC addresses are used by switches to determine which ports to forward received frames out of.
That is correct - since the ARP will be broadcast, a reply to the ARP will enable the switch to associate the source MAC address of the ARP reply frame with the port it was received on.
In case of a router, broadcasts are confined to the interface since routers do not forward broadcasts. Therefore, a router will only learn the MAC address for a host when it itself wants to send a packet to that host.
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...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...