Fear the (very usefu) hidden command

show interface [interface] switching.

as the doc says :

Note: The show interfaces [type number] switching command is hidden, and does not show up if you use the "?" or TAB keys on the command line interface. Type the full command on the router. This command is not documented in the Command Reference Guide.

The output looks like this :

      Throttle count          2
    Drops         RP         85         SP          0
SPD Flushes       Fast          0        SSE          0
SPD Aggress       Fast          0
SPD Priority     Inputs     548441      Drops          0
  
 Protocol       Path    Pkts In   Chars In   Pkts Out  Chars Out
       IP    Process    4641777  459191834    4231439  608188167
        Cache misses          0
                Fast  346762110 29221774939  346752700 24366148645
           Auton/SSE 5463366727 5570290116259 4288982736 1285933965142
  DEC MOP    Process          0          0      15359    1981311
        Cache misses          0
                Fast          0          0          0          0
           Auton/SSE          0          0          0          0
      ARP    Process       9609     576540       9611    1076432
        Cache misses          0
                Fast          0          0          0          0
           Auton/SSE          0          0          0          0

What does it do ? It's most useful to check why the packets are dropped from an interface.

Okay, want to know more ? Read this doc : Troubleshooting Input Queue Drops and Output Queue Drops .

Alienphobia

(1) A Tea-related phobia (see below tphobia) :

%PARSER-3-BADUNLOCKREQ : Unlock requested by process '[dec]'. You are not the lock owner
Explanation A configuration unlock has been requested by an alien.
Recommended Action Check the code flow for an unwanted configuration unlock request.

(2) Alien inside the box :

Error Message CE-NAS-4-205016: Found alien signature on NAS volume.
Explanation The NAS volume is used by another CE.
Recommended Action None.

(3) MARS owners that need a larger model.

Etymology: Latin (the name of the first version of IOS), alienus, "belonging to someone else".
References: [1] [2]

CCOloopphobia

Everybody knows what CCO stands for and how you can be trapped in a web page, like the one below :


You're trapped. No escape possible.

Reference: http://www.cisco.com/en/US/products/sw/iosswrel/products_ios_cisco_ios_software_releases.html#releases

Tphobia

Very very common fear : you can't be a Cisco user without it.

It's the fear that THE feature you badly NEED is ONLY in a T train.

It means that your wife will leave you before the end of the year because you' re spending too much time at work, and who is this girl you call "cisco-seventy-two-hundred" ?

This phobia is also affecting ASA users even if the releases 7.1 and 7.2 are not labeled T.

Etymology: Unknown. Leave a comment if you know why the letter T was used. Maybe a lame attempt to copy Billy Strayhorn song Take the A train ?

Reference: none.

%PIXphobia

Now called %ASAphobia.

Hits the poor user when he sees this list (which we have kept short to avoid autocombustion of the reader). It's 35 pages long in the PDF.

Etymology : comes from "nti", an obscure engraving found in very old temples dedicated to some Network Translation Inc (?) god. It then evolved to the name PIX ("firewall" in ancient Greek) and was lately renamed ASA by the Romans .

Reference :
http://www.cisco.com/en/US/products/ps6120/products_system_message_guide_chapter09186a008066633c.html#wp2364546

LameTACanswerphobia

Our ASA crashes and reboots with an empty configuration.

At boot time it says :

Configuration has non-ASCII characters and will be ignored.

Today, the TAC engineer in charge of our case answered :

It seems that the device has failed as inspite of specifying the config variable file,it's still not working. I will need to get the following information to set up the RMA.

My guess is that is that if I write my first name - which contains the letter é - on the RMA form, they'll never receive it.

No doubt that the TAC level of expertise has increased these last 6 or 7 years. This has lead to the symptom known as LameTACanswerphobia.

Étymology : speaks for itself. TAC means "The guy who can read the SOURCE", but it seems that this is no longer true, because the latest research in this field seems to converge to another explanation : "The guy who can ask someone else known as the DEVELOPPER to read the SOURCE". The problem is still open, though, nobody has ever seen what they call a DEVELOPPER.

Opticonphobia

You had a Catalyst 5500, ST, great, robust.
You had a nice supervisor which came with it, SC.
You upgraded to a 6500 but had to keep this old 100 Mbits connectivity, MTRJ blade.
Now, you have LC connectors everywhere.

That doesn't mean the story is over.

Etymology : Opti is the ancient god of light, Con, to trick someone, in other words : the fear of tricking the light.

Reference : Any Latin and French slang dictionary.