andy.steere Wed, 02/10/2010 - 14:06

Si is the atomic symbol for Silicon.   I believe Cisco has used this in the past to indicate switching/routing in hardware instead of in software.

Leo Laohoo Wed, 02/10/2010 - 15:55

I believe it could mean "Standard Image" in relations to the IOS feature set.

IASaifudeen Sun, 01/06/2013 - 18:37

I see a router stencil with the same "Si" in the icon.  The description is listed "Router w/Silicon Switch". 

Ref:  Silicon Switch Processor, silicon switching.

acampbell Mon, 01/07/2013 - 06:13


I still hold some realy old CISCO PPT ICONS

The "Si" does mean silicon

An example would be an old  7000 type router with an SSP

I have included the icons and description from the cisco download in the

enclosed ppt

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