ARP cache

The ARP cache contains dynamic (learned) entries. The software places a dynamic entry in the ARP cache when the routing switch learns a device's MAC address from an ARP request or ARP reply from the device.

The software can learn an entry when the switch or routing switch receives an ARP request from another IP forwarding device or an ARP reply. Here is an example of a dynamic entry:

ARP cache dynamic entry

    IP Address      MAC Address      Type       Port
1    0800.5afc.ea21   Dynamic    6

Each entry contains the destination device's IP address and MAC address.

To configure other ARP parameters, see Configuring ARP parameters.