gsr

　　 Gigabit Switch Router (12000)

　　ls1010

　　 Lightstream 1010

　　mc3810

　　 Ardent Multiservice Cisco 3810

　　p

　　 Partners' platform n

　　*pt

　　 prootocol translator

　　rpm

　　 MGX 8850

　　rsp

　　 75xx

　　ubr7200

　　 Universal Broadband Router 7200

　　ubr900

　　 Universal Broadband Router 900

　　ubr920

　　 Universal Broadband Router 920

　　vcw

　　 Voice Card Ware

　　xx

　　 4000

　　igsetx

　　 2500 (media specific image that supports only ethernet, token ring, and x.25)

　　 Software Naming Conventions for IOS - Format

　　Where the image runs in the router

　　f flash

　　m ram

　　r rom

　　l relocatable

　　Compression Types

　　z zip compressed (note lower case)

　　x mzip compressed

　　w "STAC" compressed

　　Extensions

　　.tar A utility and file format used for packaging files together. These files are compressed using gzip or some other form of compression

　　.html The file is used with a Web browser application.

　　Software Naming Conventions for IOS - Features

　　ALL 0-9 a b c d e f g h i j k l m n o p q r s t u v w x y z ALL

　　a

　　a APPN

　　a2 ATM

　　a3 APPN replacement

　　b

　　b Appletalk

　　boot boot image

　　c

　　c Comm-server/Remote Access Server (RAS) subset (SNMP, IP, Bridging,IPX, Atalk, Decnet, FR, HDLC, PPP, X,25, ARAP, tn3270, PT,