Explanation of IOS name meaning (1)

Different IOS versions and platforms have different content in each feature set. The specific feature content is subject to the Release Notes of the corresponding IOS version.

IOS name is generally in the following format: PPPPP-FFFFF-MM

PPPPP: IOS platform

FFFFF: feature set

MM: running environment and packaging Mode

CiscoIOS Platform

As5200	Cisco AS5200 Universal Access Server
Ca1003	Cisco Advantage 1003
Ca1005	Cisco Advantage 1005
Cpa1003	CiscoPro 1003,4
Cpa1005	Siscopro 1005
Cpa2500	Siscopro 2500
Cpa3620	Siscopro 3620
Cpa3640	Siscopro 3640
Cpa4500	Siscopro 4500
* Cs	Communication Server
Cs500	Cs500
C1000	Cisco 1003 and Cisco 1004 series routesTool
C1005	Cisco 1005 series routeTool
C10k	Cisco 10000 Border Service RoutingDevice (ESR)
C1600	Cisco 1600 series routers
C1700	Cisco 1700 series routeTool
C2500	Cisco 25xx, 3xxx, 5100, and AO series routes(Cisco IOS 11.2 or later)
C25fx	Cisco 2500 fixed configuration FRAD
C2600	Cisco 2600 series routeTool
C2800	Catalyst 2800 series switches
C2900	Catalyst 2900XL series switches
C2950	Catalyst 2950 series switches
C29atm	Catalyst 2900 ATM Switch
C3500	Catalyst 3500xl series switches
C3550	Catalyst 3550 series switches
C3620	3620 routeTool
C3640	3640 routeTool
C3660	3660 routeTool
C3800	3800 Media Server
C4000	4000 (11.2 or later) RouteTool
C4500	4500 and 4700 series routesTool
C5rsfc	Catalyst 5000 RSFC
C5rsp	Catalyst 5000 RSP
C5atm	Catalyst 5000 ATM
C6400s	Cisco 6400 NSP
C6400r	Cisco 6400 NRP
C6msm	Catalyst 6000 MSM
C7000	7000 and 7010 (11.2 or later)
C7200	7200 routeTool
Cva120	CVA 120
AIGs	ETS, 25xx, 3xxx, 5100, and AP
Gs3	AGS/AGS +
Gs7	Gateway server 7000 and 7010
Gsr	GSR 12000
Ls1010	Lightstream 1010
Mc3810	Ardent Multiservice Cisco 3810
MWR1900	Cisco IOS Mobile Wireless Edge Router
P	Partners platform n
* Pt	Protocol Conversion
Rpm	MGX 8850 Multiservice Switch
Rsp	Cisco 75xx RSP
Ubr7200	Universal Broadband Router 7200
Ubr900	Universal Broadband Router 900
Ubr905	Universal Broadband Router 905
Ubr920	Universal Broadband Router 920
Ubr925	Universal Broadband Router 925
Vcw	Voice Card Ware
Xx	4000
Igsetx	2500

Cisco IOS features

A	APPN
A2	ATM
A3	SNA Exchange (replace APPN)

B

B	AppleTalk
Boot	Boot image
Boot2	Dsl boot image for NIC for NI2-155SM-155SM2 and NI2-155MM-155MM2

C

C	Remote Access Service subset (including SNMP, IP, bridging, IPX, AppleTalk, Decnet, FR, HDLC, PPP, X.25, AppleTalk Remote Access Protocol, TN3270, PT, XRemote, LAT) (non-CiscoPro)
C	CommServer lite (CiscoPro)
C2	Simplified Remote Access Service subset (SNMP, IP, Bridging, IPX, AppleTalk, Decnet, FR, HDLC, PPP, X, 25, ARAP, TN3270, PT, XRemote, LAT) (CiscoPro)
C3	Cluster
C4	CiscoView network management software
C5	Supports 8 k pdsn (Packet Data Service Node) sessions and point-to-point cluster support
C6	Supports 20 k pdsn sessions and Master/Slave Clusters

D

D	Desktop subset (including SNMP, IP, Bridging, WAN, remote node, Terminal Service, Services, IPX, AppleTalk, and ARAP) (decnet included in 11.2)
D2	Simplified desktop subset (SNMP, IP, IPX, AppleTalk, and ARAP)
Diag	Diagnostic Image Based on IOS
Dsl	DSL

E

E	IPeXchange is no longer used in Cisco IOS Software Release 11.3 and later. starPipes DB2 Access enables Cisco IOS to act as a Gateway to all IBM DB2 products for downstream clients/servers in Cisco IOS Software Release 11.3 T.
Eboot	Image of mc3810 platform starting from Ethernet

F

F	FRAD subset (SNMP, FR, PPP, SDLLC, STUN)
F2	Enhanced FRAD subsets, such as VPN and OSPF.

G

G	ISDN subset (SNMP, IP, Bridging, ISDN, PPP, IPX, AppleTalk)
G2	Keep keeper proxy, voice, and video.
G3	ISDN subset on c800 (IP, ISDN, FR)
G4	Service Selection Gateway (SSG)
G5	Wireless Access

H

H	2910, 802.1D, switching feature, IP Host.
H1	High Availability of MWG on PDSN Platform
Hdiag	Diagnostic Image 2910

I (for c2500 or higher platforms)

I	IP subset (SNMP, IP, bridging, WAN, remote node, Terminal Service)
I2	Used for system control image, similar to IP subset (3600 ).
I3	Simplified IP subset, excluding BGP/MIB, EGP/MIB, NHRP/MIB, DIRRESP
I4	IP subset (5200)
I5	The simplified IP subset removes WAN, remote node, and terminal service support.
Ipss7	IP subset, added support for signaling gateway 7 (2600 ).
I6	A simplified IP subset removes IP routingMIB of remote nodes, Terminal Services, and stacks
I8	IP routing(RIP, OSPF, BGP, Static), NAT, VoIP, and Voice over ATM Adaptation Layer 2 (voaal)
I9	A simplified subset of IP addresses, removing IP routingRemote nodes and Terminal Services
I10	IP routing(RIP, OSPF, BGP, Static), NAT (same as i8), isdn nbar, remove DSL support
IBD	IP subset, including Transfer Point (2600 ).

J

J	Enterprise Edition, including Protocol Conversion
J1	Basic Enterprise Edition of c2600/c3600

K

K	Not used after 10.3
K1	Basic privacy key encryption, 11.3 or later
K2	Not used after 10.3
K2	3DES of version 11.3 or later, including SSH support in version 12.1 or later.
K3	Reserved for encryption features, version 11.3 or later
K4	Reserved for encryption features, version 11.3 or later
K5	Reserved for encryption features, version 11.3 or later
K6	Reserved for encryption features, version 11.3 or later
K7	Reserved for encryption features, version 11.3 or later
K8	Less than or equal to 64-bit encryption (DES), 12.2 or later.
K9	Stronger than 64-bit encryption (3DES, AES), 12.2 or later.