show mac address-table count/aging-time doesn't show up

[Ciscodisco]

Hey guys, 

I'm studying for the CCNA and I stumbled upon something.

On Chapter 7 of Wendell Odom's CCENT/CCNA ICND1 100-105 he states some ''show'' commands. 

Two of them are ''show mac address-table count'' and ''show mac address-table aging-time''. 

I typed those in both Cisco 200-125 Network Simulator and Packet Tracer and got this:

Switch#show mac address-table count
                                                               ^
% Invalid input detected at '^' marker.

I'll mention that the topologies are running with mac address-table populated. 

Thanks!

[Seb Rupik]

Hi there,

The error message indicates that the command is not supported.

If you are not using hardware for your studies I suggest you use an emulator such as GNS3, EVE-NG or VIRL. These will have the full command sets available.

cheers,

Seb.

[Ciscodisco]

Thanks! I will try one of those.