Memory and Microcode Requirements for Release 11.3

Memory Requirements

Some software image sizes exceed 4 MB and, when compressed, exceed 2 MB. Also, some systems require more than 1 MB of main system memory for data structure tables.

For Cisco routers to take advantage of the Release 11.3 features, you must upgrade the code or main system memory as listed in Table 22. Some platforms have specific chip or architecture requirements that affect what can be upgraded and in what increments.

**Table 22: Release 11.3 Memory Requirements**
Platform/Feature Set	Minimum Required Code Memory	Required Main Memory	Release 11.3 Runs from
Cisco AccessPro PC Card
IP	8 MB Flash	4 MB DRAM	Flash
IP Plus	8 MB Flash	4 MB DRAM	Flash
IP Plus 40	8 MB Flash	4 MB DRAM	Flash
IP Plus 56	8 MB Flash	4 MB DRAM	Flash
IP/IPX/AT/DEC	8 MB Flash	4 MB DRAM	Flash
IP/IPX/AT/DEC Plus	8 MB Flash	6 MB DRAM	Flash
Enterprise Plus	16 MB Flash	6 MB DRAM	Flash
Enterprise Plus 40	16 MB Flash	6 MB DRAM	Flash
Enterprise Plus 56	16 MB Flash	6 MB DRAM	Flash
Cisco 1003 and Cisco 1004 ISDN Routers¹
IP	2 MB² Flash	8 MB DRAM	RAM
IP Plus	4 MB2 Flash	8 MB DRAM	RAM
IP Plus 40	4 MB2 Flash	8 MB DRAM	RAM
IP Plus 56	4 MB2 Flash	8 MB DRAM	RAM
IP/IPX	2 MB2 Flash	8 MB DRAM	RAM
IP/IPX/AT	2 MB2 Flash	8 MB DRAM	RAM
IP/IPX/AT Plus	4 MB2 Flash	8 MB DRAM	RAM
IP/IPX/AT Plus 40	4 MB2 Flash	8 MB DRAM	RAM
IP/IPX/AT Plus 56	4 MB2 Flash	8 MB DRAM	RAM
Cisco 1005 Router
IP	2 MB2 Flash	8 MB DRAM	RAM
IP Plus	4 MB2 Flash	8 MB DRAM	RAM
IP Plus 40	4 MB2 Flash	8 MB DRAM	RAM
IP Plus 56	4 MB2 Flash	8 MB DRAM	RAM
IP/IPX	2 MB2 Flash	8 MB DRAM	RAM
IP/IPX/AT	2 MB2 Flash	8 MB DRAM	RAM
IP/IPX/AT Plus	4 MB2 Flash	8 MB DRAM	RAM
IP/IPX/AT Plus 40	4 MB2 Flash	8 MB DRAM	RAM
IP/IPX/AT Plus 56	4 MB2 Flash	8 MB DRAM	RAM
IP/Async	2 MB2 Flash	8 MB DRAM	RAM
IP/IPX/Async	2 MB2 Flash	8 MB DRAM	RAM
IP/OSPF/PIM	2 MB2 Flash	8 MB DRAM	RAM
Cisco 1600 Series
IP	4 MB Flash	2 MB DRAM	Flash
IP Plus	6 MB Flash	4 MB DRAM	Flash
IP Plus 40	6 MB Flash	4 MB DRAM	Flash
IP Plus 56	6 MB Flash	4 MB DRAM	Flash
IP/IPX	6 MB Flash	2 MB DRAM	Flash
IP/IPX Plus	6 MB Flash	4 MB DRAM	Flash
IP/IPX/AT/IBM	8 MB Flash	4 MB DRAM	Flash
IP/IPX/AT/IBM Plus	8 MB Flash	6 MB DRAM	Flash
IP/IPX/AT/IBM Plus 40	8 MB Flash	6 MB DRAM	Flash
IP/IPX/AT/IBM Plus 56	8 MB Flash	6 MB DRAM	Flash
Cisco 2500 Series
IP	8 MB Flash	4 MB DRAM	Flash
IP Plus	8 MB Flash	4 MB DRAM	Flash
IP Plus 40	8 MB Flash	4 MB DRAM	Flash
IP 56 Plus	8 MB Flash	4 MB DRAM	Flash
ISDN	8 MB Flash	4 MB DRAM	Flash
IP/IPX/AT/DEC	8 MB Flash	4 MB DRAM	Flash
IP/IPX/AT/DEC Plus	8 MB Flash	6 MB DRAM	Flash
Enterprise Plus	16 MB Flash	6 MB DRAM	Flash
Enterprise Plus 40	16 MB Flash	6 MB DRAM	Flash
Enterprise Plus 56	16 MB Flash	6 MB DRAM	Flash
Enterprise/APPN Plus	16 MB Flash	8 MB DRAM	Flash
Enterprise/APPN Plus 40	16 MB Flash	8 MB DRAM	Flash
Enterprise/APPN Plus 56	16 MB Flash	8 MB DRAM	Flash
Remote Access Server (RAS)	8 MB Flash	4 MB DRAM	Flash
FRAD	8 MB Flash	4 MB DRAM	Flash
LANFRAD	8 MB Flash	4 MB DRAM	Flash
Cisco 25FX Series
FRAD	8 MB Flash	4 MB DRAM	Flash
LANFRAD	8 MB Flash	4 MB DRAM	Flash
LANFRAD/OSPF	8 MB Flash	4 MB DRAM	Flash
Cisco 3600 Series
IP	4 MB Flash	16 MB DRAM	RAM
IP Plus	8 MB Flash	24 MB DRAM	RAM
IP Plus 40	8 MB Flash	24 MB DRAM	RAM
IP Plus 56	8 MB Flash	24 MB DRAM	RAM
IP/IPX/AT/DEC	4 MB Flash	24 MB DRAM	RAM
IP/IPX/AT/DEC Plus	8 MB Flash	24 MB DRAM	RAM
Enterprise Plus	8 MB Flash	24 MB DRAM	RAM
Enterprise Plus 40	8 MB Flash	24 MB DRAM	RAM
Enterprise Plus 56	8 MB Flash	24 MB DRAM	RAM
Enterprise/APPN Plus	8 MB Flash	32 MB DRAM	RAM
Enterprise/APPN Plus 40	8 MB Flash	32 MB DRAM	RAM
Enterprise/APPN Plus 56	8 MB Flash	32 MB DRAM	RAM
Cisco 4000
IP	4 MB Flash	16 MB DRAM	RAM
IP Plus	4 MB Flash	16 MB DRAM	RAM
IP Plus 40	4 MB Flash	16 MB DRAM	RAM
IP Plus 56	4 MB Flash	16 MB DRAM	RAM
IP/IPX/AT/DEC	4 MB Flash	16 MB DRAM	RAM
IP/IPX/AT/DEC Plus	4 MB Flash	16 MB DRAM	RAM
Enterprise Plus	8 MB Flash	16 MB DRAM	RAM
Enterprise Plus 40	8 MB Flash	16 MB DRAM	RAM
Enterprise Plus 56	8 MB Flash	16 MB DRAM	RAM
Enterprise/APPN Plus	8 MB Flash	32 MB DRAM	RAM
Enterprise/APPN Plus 40	8 MB Flash	32 MB DRAM	RAM
Enterprise/APPN Plus 56	8 MB Flash	32 MB DRAM	RAM
Cisco 4000-M
IP	4 MB Flash	8 MB DRAM	RAM
IP Plus	4 MB Flash	8 MB DRAM	RAM
IP Plus 40	4 MB Flash	8 MB DRAM	RAM
IP Plus 56	4 MB Flash	8 MB DRAM	RAM
IP/IPX/AT/DEC	4 MB Flash	8 MB DRAM	RAM
IP/IPX/AT/DEC Plus	4 MB Flash	16 MB DRAM	RAM
Enterprise Plus	8 MB Flash	16 MB DRAM	RAM
Enterprise Plus 40	8 MB Flash	16 MB DRAM	RAM
Enterprise Plus 56	8 MB Flash	16 MB DRAM	RAM
Enterprise/APPN Plus	8 MB Flash	32 MB DRAM	RAM
Enterprise/APPN Plus 40	8 MB Flash	32 MB DRAM	RAM
Enterprise/APPN Plus 56	8 MB Flash	32 MB DRAM	RAM
Cisco 4500
IP	4 MB Flash	32 MB DRAM	RAM
IP Plus	4 MB Flash	32 MB DRAM	RAM
IP Plus 40	4 MB Flash	32 MB DRAM	RAM
IP Plus 56	4 MB Flash	32 MB DRAM	RAM
IP/IPX/AT/DEC	4 MB Flash	32 MB DRAM	RAM
IP/IPX/AT/DEC Plus	8 MB Flash	32 MB DRAM	RAM
Enterprise Plus	8 MB Flash	32 MB DRAM	RAM
Enterprise Plus 40	8 MB Flash	32 MB DRAM	RAM
Enterprise Plus 56	8 MB Flash	32 MB DRAM	RAM
Enterprise/APPN Plus	8 MB Flash	32 MB DRAM	RAM
Enterprise/APPN Plus 40	8 MB Flash	32 MB DRAM	RAM
Enterprise/APPN Plus 56	8 MB Flash	32 MB DRAM	RAM
Cisco 4500-M and Cisco 4700 Series
IP	4 MB Flash	16 MB DRAM	RAM
IP Plus	4 MB Flash	16 MB DRAM	RAM
IP Plus 40	4 MB Flash	16 MB DRAM	RAM
IP Plus 56	4 MB Flash	16 MB DRAM	RAM
IP/IPX/AT/DEC	4 MB Flash	16 MB DRAM	RAM
IP/IPX/AT/DEC Plus	8 MB Flash	16 MB DRAM	RAM
Enterprise Plus	8 MB Flash	16 MB DRAM	RAM
Enterprise Plus 40	8 MB Flash	16 MB DRAM	RAM
Enterprise Plus 56	8 MB Flash	16 MB DRAM	RAM
Enterprise/APPN Plus	8 MB Flash	32 MB DRAM	RAM
Enterprise/APPN Plus 40	8 MB Flash	32 MB DRAM	RAM
Enterprise/APPN Plus 56	8 MB Flash	32 MB DRAM	RAM
Cisco AS5100
IP	8 MB Flash	6 MB DRAM	Flash
IP/IPX/AT/DEC	8 MB Flash	4 MB DRAM	Flash
Remote Access Server (RAS)	8 MB Flash	6 MB DRAM	Flash
Cisco AS5200
IP	8 MB Flash	8 MB DRAM	Flash
IP Plus	8 MB Flash	8 MB DRAM	Flash
Desktop	8 MB Flash	8 MB DRAM	Flash
Desktop Plus	8 MB Flash	8 MB DRAM	Flash
Enterprise	16 MB Flash	8 MB DRAM	Flash
Enterprise Plus	16 MB Flash	8 MB DRAM	Flash
Cisco 7200 Series
IP	8 MB Flash	32 MB DRAM	RAM
IP 40	8 MB Flash	32 MB DRAM	RAM
IP 56	8 MB Flash	32 MB DRAM	RAM
Desktop/IBM	8 MB Flash	32 MB DRAM	RAM
Desktop/IBM 40	8 MB Flash	32 MB DRAM	RAM
Desktop/IBM 56	8 MB Flash	32 MB DRAM	RAM
Enterprise	8 MB Flash	32 MB DRAM	RAM
Enterprise 40	8 MB Flash	32 MB DRAM	RAM
Enterprise 56	8 MB Flash	32 MB DRAM	RAM
Enterprise/APPN	8 MB Flash	32 MB DRAM	RAM
Enterprise/APPN 40	8 MB Flash	32 MB DRAM	RAM
Enterprise/APPN 56	8 MB Flash	32 MB DRAM	RAM
Network Layer 3 Switching	8 MB Flash	32 MB DRAM	RAM
Cisco 7500/RSP³ Series
IP	16 MB Flash	32 MB DRAM	RAM
IP 40	16 MB Flash	32 MB DRAM	RAM
IP 56	16 MB Flash	32 MB DRAM	RAM
Desktop/IBM	16 MB Flash	32 MB DRAM	RAM
Desktop/IBM 40	16 MB Flash	32 MB DRAM	RAM
Desktop/IBM 56	16 MB Flash	32 MB DRAM	RAM
ATM Cable Interface Processor	16 MB Flash	32 MB DRAM	RAM
Enterprise	16 MB Flash	32 MB DRAM	RAM
Enterprise 40	16 MB Flash	32 MB DRAM	RAM
Enterprise 56	16 MB Flash	32 MB DRAM	RAM
Enterprise/APPN	16 MB Flash	32 MB DRAM	RAM
Enterprise/APPN 40	16 MB Flash	32 MB DRAM	RAM
Enterprise/APPN 56	16 MB Flash	32 MB DRAM	RAM

¹ If you need to upgrade the main memory for your Cisco 1003, 1004, or 1005 router, be sure to order the upgrade specific to your router.
² Flash is optional.
³ Includes the Cisco 7000 equipped with RSP7000 processor, the Cisco 7010 equipped with RSP7000 processor, and the Cisco 7500 series routers.

Microcode Software

Table 23 lists the current microcode versions for the Cisco 7500/RSP series. This series includes the Cisco 7000 equipped with the RSP7000 processor, the Cisco 7010 equipped with the RSP7000 processor, and the Cisco 7500 series routers. Note that microcode software images are bundled with the system software image--with the exception of the Channel Interface Processor (CIP) microcode (all system software images) and Versatile Interface Processor (VIP) microcode (certain system software images). Bundling eliminates the need to store separate microcode images. When the router starts, the system software unpacks the microcode software bundle and loads the proper software on all the interface processor boards. Versatile Interface Processor (VIP and VIP2) microcode is bundled into all Cisco 7500 series feature sets listed in Table 22.

Note The Cisco 7000 series previously included the Cisco 7000 and 7010. These products are not supported in Cisco IOS Release 11.3. The Cisco 7000 series now includes the Cisco 7000 equipped with the RSP7000 processor and the Cisco 7010 equipped with the RSP7000 processor. For more information regarding this change, see the "Important Notes" section in this release note.

**Table 23: Bundled RSP Microcode Versions, by Release, for the Cisco 7500/RSP Series**
	Processor or Module¹
Cisco IOS Release	AIP	EIP	FEIP	FIP	FSIP	HIP	MIP	POSIP	RSP2²	TRIP	VIP3	VIP23	VIP2C3
Minimum Version Required	20.13	20.3	20.6	20.1	20.7	20.1	22.3	20.0	N/A	20.1	22.20	22.20	22.20
11.3(1)	20.13	20.3	20.6	20.1	20.7	20.1	22.3	20.0	N/A	20.1	22.20	22.20	22.20

¹ AIP (ATM Interface Processor), EIP (Ethernet Interface Processor), FEIP (Fast Ethernet Interface Processor), FIP (FDDI Interface Processor), FSIP (Fast Serial Interface Processor), HIP (HSSI Interface Processor), MIP (MultiChannel Interface Processor), POSIP (Packet over SONET OC-3 Interface Processor), RSP2 (Route Switch Processor), TRIP (Token Ring Interface Processor), VIP (Versatile Interface Processor), VIP2 (Second-Generation Versatile Interface Processor),VIP2C (Second-Generation Versatile Interface Processor--Encrypted).
² RSP2, VIP, VIP2, and VIP2C microcode reside within the Cisco IOS software; they are not "bundled" in.

Channel Interface Processor (CIP) Microcode

Beginning with Cisco IOS Release 11.1, the CIP microcode is no longer bundled with the Cisco IOS software image. You must have Flash memory installed on the Route Processor (RP) card and 8 MB RAM installed on your CIP card to use the IBM channel attach features in Cisco IOS Release 11.1 and later. See the "Important Notes" section for more information about CIP microcode.

Modification

AIP Microcode Version 20.13 fixes the following:

The AIP does not show packets dropped due to traffic shaping. [CSCdi72246]

Ethernet Interface Processor (EIP) Microcode Revision Summary

EIP Microcode Version 20.3

Modification

EIP Microcode Version 20.3 fixes the following:

A bad R4600 processor causes router crashes with errors such as XBUFHDR errors, INVRTN errors, and GETBUF errors. [CSCdi75404]

Fast Ethernet Interface Processor (FEIP) Microcode Revision Summary

FEIP Microcode Version 20.6

Modification

FEIP Microcode Version 20.6 fixes the following:

Enabling FEIP in RP/SP 7000 causes the error message "CBUS-3-INITERR with Error (8021)." [CSCdj14743]

Fast Serial Interface Processor (FSIP) Microcode Revision Summary

FSIP Microcode Version 20.7

Modification

FSIP Microcode Version 20.7 fixes the following:

The "CBUS-3-CMDTIMEOUT" error causes FSIP to vanish. [CSCdj00013]

MultiChannel Interface Processor (MIP) Microcode Revision Summary

MIP Microcode Version 22.3

Modification

MIP Microcode Version 22.3 fixes the following:

A remote loop on a channelized T1 interface could stay looped. [CSCdj19606]

Token Ring Interface Processor (TRIP) Microcode Revision Summary

TRIP Microcode Version 20.1

Modifications

TRIP Microcode Version 20.1 fixes the following:

A SpyGlass problem causes the command queue to the Spyglass to overflow. The symptom of this problem is a "ctrucheck" at location 0x925 in trip10-3.
The DMA engine appears to "clock in" the memd address an extra time or increment the memd address an extra time. The obvious symptom is an "800E" (output stuck).
With transmit frames, the prototype Access Control byte is invalid (bit 0x10 is set).

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