show interfaces interface-id trunk command invalid

[chester.shibai]

Hi guys,

I am new to this and had a bit of an issue with practicing Packet tracer.

I tried to use the command 'show interfaces fa0/4 trunk' but it gives me 

Invalid input detected at '^' marker. the mark ^ was under 't' as trunk, I am pretty sure this is a valid command as it was on the textbook.

any clue? 

Many thanks.

[Jon Marshall · Accepted solution]

It is a valid command on IOS switches but not all commands may be available in your emulator. 

Jon

[scrabblelives]

conf t

int fa0/4

switchport

end

wr mem

sho int fa0/4 trunk ?

once switchport is enable it should appear. if int is set to 'no switchport' then trunk will not be in cmd list for interface

[Martin L]

PT is just software sim with goal is to simulate some of devices, IOS and Window-based PC/server behaviors.  it is not real thing which means not all IOS features and IOS commands will be available.  Also, routing and switching behavior might not be exactly the same when comparing to real devices. Some of limitations are mentioned in Content/Tutorial; see PT under Help menu.

U can use show interfaces fa0/10 switchport and show interface trunk 

Regards, ML
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