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can not enable embedded-Service-Engine on 2911

hello, i cann't enable embedded-Service-Engine on cisco2911 router

this is the output:

ALGER#show ip interface brief

Interface                  IP-Address      OK? Method Status                Protocol

Embedded-Service-Engine0/0   YES unset  up                    down

GigabitEthernet0/0   YES NVRAM  up                    up 

GigabitEthernet0/1         unassigned      YES NVRAM  down                  down

GigabitEthernet0/2         unassigned      YES NVRAM  administratively down down

ALGER#conf t

Enter configuration commands, one per line.  End with CNTL/Z.

ALGER(config)#interface embedded-Service-Engine 0/0

ALGER(config-if)#service-module enable

Memory size does not meet the requirements of Embedded-Service-Engine0/0


ALGER#show version

Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.1(4)M5, RELEASE SOFTWARE (fc1)

Technical Support:

Copyright (c) 1986-2012 by Cisco Systems, Inc.

Compiled Tue 04-Sep-12 16:37 by prod_rel_team

ROM: System Bootstrap, Version 15.0(1r)M15, RELEASE SOFTWARE (fc1)

GW-DE-ALGER uptime is 3 weeks, 2 days, 18 hours, 9 minutes

System returned to ROM by reload at 15:37:21 GMT Thu Nov 8 2012

System restarted at 15:38:56 GMT Thu Nov 8 2012

System image file is "flash:c2900-universalk9-mz.SPA.151-4.M5_2.bin"

Last reload type: Normal Reload

Last reload reason: Reload Command

This product contains cryptographic features and is subject to United

States and local country laws governing import, export, transfer and

use. Delivery of Cisco cryptographic products does not imply

third-party authority to import, export, distribute or use encryption.

Importers, exporters, distributors and users are responsible for

compliance with U.S. and local country laws. By using this product you

agree to comply with applicable laws and regulations. If you are unable

to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

If you require further assistance please contact us by sending email to

Cisco CISCO2911/K9 (revision 1.0) with 483328K/40960K bytes of memory.

Processor board ID FGL162012UH

3 Gigabit Ethernet interfaces

1 terminal line

4 Voice FXO interfaces

DRAM configuration is 64 bits wide with parity enabled.

255K bytes of non-volatile configuration memory.

250880K bytes of ATA System CompactFlash 0 (Read/Write)

License Info:

License UDI:


Device#   PID                   SN


*0        CISCO2911/K9          FGL162012UH

Technology Package License Information for Module:'c2900'


Technology    Technology-package           Technology-package

              Current       Type           Next reboot


ipbase        ipbasek9      Permanent      ipbasek9

security      None          None           None

uc            uck9          Permanent      uck9

data          None          None           None

Configuration register is 0x2102

Cisco Employee


It clearly states that it requires more memory.

You can check the below link for the memory requirements for your module.


Hall of Fame Master

Suppose you can enable it, what would be the use you intend to do with it ?


will be used for Cisco Unity Express ,

we have another cisco2921 with CUE and NME-UMG with 512MB memory and work fine !