Cisco config commands4/6/2024 then I will type "show mac-address table" which will show me which PORT the device is connected to! then I type a "show arp" and get its MAC address. **I always use those commands you show to troublshoot. SHOW INVENTORY -> To show the SERIAL number of the Cisco device you are on.If you have two hosts h1 and h2, using -arp its gives the h2 Mac address inside the ARP table of h1 and vice versa.-test ipref or –test pingall: Once topology is created, with this command, all host will start ping to each other. -arp: This will generates ARP table of hosts with the ARP entries of each other.- show mac address table vs show ip arp/show - layer 2 broadcast (ff:ff:ff:ff:ff:ff) - layer 3 broadcast (255.255.255.255) Switch#show arp Protocol Address Age (min) Hardware Addr Type Interface Internet 10.1.1.3 0 10dd.b1c8.3a21 ARPA Vlan1 Internet 10.1.1.1 2 2cd4.44b7.6c6a ARPA Vlan1.If configuring “peer-switch” vPC vlans priority on both switch must be the same !!! vpc domain 1 peer-gateway peer-switch ip arp synchronize delay restore 120 graceful consistency-check auto-recovery auto-recovery reload-delay 240.
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