"PC and switch use ARP to discover the destionation MAC address...."
This is not right. PC use ARP to find out the destination MAC (of the gateway or other PC on the same LAN), but switches doesn´t. Switches use the source MAC address of any packet to fill its mac-address table, and if the destination MAC of a packet is not present in the mac-address table, the switch just flood this packet out of all its ports where the vlan is permitted (access or trunk).
Hi everyone.I have a problem in my Network.So i have 3 routers and a firewall in my topology. I have configured OSPF and all routers works expect R3 (see in the image below)When I watch my neignbor in R3 it says :192.168.7.7 1 INIT/DROTHER 00:00:37 10.0.2...
Host Onboarding is the term used when connecting an endpoint (hosts , IOT , Other devices) to the fabric , and can be accomplished in a couple of ways.One option is the "static" approach as oppose to the dynamic and secure approach using&nbs...
good morning I have this report from users, saying that they encounter connection issue only when they are wired , but the wireless I fine. both connection are using the same path to the internet ...please advised a troubleshooting plan.
Enterprise Switching Business Unit is glad to announce Beta release 16.12.3 for all Catalyst 9200/9300/9400/9500/9600. This release is made available to allow users to test, evaluate and share feedback before General Avail...