Cisco IOS Software Releases 12.1 E

Field Notice: Cisco IOS Software Release 12.1(1)E2

May 11, 2000

Products Affected



Catalyst 6000 Series


Cisco 7100 Series


Cisco 7200 Series


Cisco 7500 Series


Problem Description

Cisco IOS Software Release 12.1(1)E2 has been built to provide:

  • Cisco 7500 series images (rsp-*-mz)

  • Cisco has also integrated other defect solutions, which are listed in the DDTS section below.

Problem Symptoms

  • Cisco 7500 series images (rsp-*-mz) have not been released from Cisco IOS Software Release 12.1E. Cisco IOS Software Release12.1(1)E2 is the first 12.1E maintenance release to support Cisco 7500 series images.

  • Cisco 7500 series IOS crypto images are not being release from Cisco IOS Software Release 12.1E until further notice.


Cisco IOS Software Release 12.1(1)E did not release Cisco 7500 Series images (rsp-*-mz). Cisco IOS Software Release 12.1(1)E2 is the first 12.1E release that supports the Cisco 7500 series images.

Cisco IOS Software Release 12.1(1)E2 also has integrated other software repairs. Other defect repairs integrated into 12.1(1)E2 are listed in the DDTS section below.

Cisco IOS Software Release 12.1(1)E2 is built from 12.1(1)E + SW defects solutions integrated (listed in the DDTS section below).

Cisco IOS Software Release 12.1(1)E1 was not released.


All Cisco 7100, 7200, 7500 and Catalyst 6000 images are being released in 12.1(1)E2. Cisco IOS Software Release 12.1(1)E2 is recommended to obtain Cisco 7500 Series images and repairs that are listed below.

Cisco IOS Software Release 12.1(1)E2 = 12.1(1)E + repairs listed below.


To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.



CSCdp63587 (registered customers only)

Router crashed at enqueue while executing microcode reload

Affects 7500 series rsp-*-mz images.

CSCdp95180 (registered customers only)

SLB Feature input flags not turned on

Affects the Cat6000 (c6sup-*-mz) and 7200 (c7200-*-mz) images.

CSCdp99768 (registered customers only)

Endless Process= IPC LC Message Handler, ipl= 3, pid= 73

Affects the Cat6000 c6msfc-*v*-mz images.

CSCdr14865 (registered customers only)

Fix cwan for CSCdp99255-RM7000 appears to skip instructions

Affects the Catalyst 6000 c6sup-*-mz images.

CSCdp64112 (registered customers only)


CSCdr19345 (registered customers only)

In MAC ACLs, host option is in the wrong position

CSCdr36197 (registered customers only)

ISA F/W confuses DH and SKEY create commands

CSCdr22769 (registered customers only)

MMLS problem when multiple Sources for identical groups

CSCdr03335 (registered customers only)

At least 50% of pings fail

CSCdr24768 (registered customers only)

Ping fails with default switching mode cef in ip routing tests

CSCdp69004 (registered customers only)

CET: GEIP doesnt encrypt traffic matching crypto policy

CSCdr32587 (registered customers only)

Error in ACL initialization at bootup

CSCdr16213 (registered customers only)

IP packet loss through tunnel interface on MSFC w/cef enabled

CSCdr02906 (registered customers only)

Spurious access recorded at lc_qos_supported

CSCdr25147 (registered customers only)

Configreg is set to zero after reload

CSCdp69279 (registered customers only)

Secondary MSFC bootldr var is not updated correctly

CSCdr00694 (registered customers only)

Flash problems while deleting/squeezing/formating

CSCdr29594 (registered customers only)

Router hangs after configuring smds encapsulation on interface

CSCdr05217 (registered customers only)

CATOS: enabling L2 qos, sets ALL Flexwan packets to tos of 0x00

CSCdr17019 (registered customers only)

CLNS fast-switching is broken

CSCdp88204 (registered customers only)

vip crash@ vip_set_tx_polling_high can cause loss of interface

CSCdp84794 (registered customers only)

Spurious Memory Access made at 0x0604A2258 reading 0x50

CSCdr16140 (registered customers only)

7100 with ISM requires manually clearing SA after new ip on ASYNC

CSCdp93974 (registered customers only)

LCs are marker FIBDISABLE when no FIB_WINDOW is received

CSCdp83150 (registered customers only)

PPP encap problem when the other end reset or OIR

CSCdr12282 (registered customers only)

Centralize blt parameter setting/initialization

CSCdp86111 (registered customers only)

Traffic destine to router get dropped with CEF on

CSCdr05792 (registered customers only)

Dynamic crypto maps get confused by redundant routes

CSCdr17845 (registered customers only)

VSSBU:IOS:ISA: Dynamic crypto map broken

CSCdr24308 (registered customers only)

slb stateless backup causing cat6k to crash

Cisco IOS Versions Affected

Cisco IOS Software Release 12.1(1)E will not be available through new orders from Cisco. The product numbers used to order 12.1(1)E images will be used to ship the new rebuild 12.1(1)E2.

CCO IOS planner will maintain 12.1(1)E and 12.1(1)E2.

Note:?Cisco IOS Software Release 12.1(1)E1 was not released.

How To Upgrade Software

Maintenance Solution:

To obtain the next maintenance release follow the below instructions:

Software Downloading from CCO via World Wide Web.

Go to Software Downloading Center.

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

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